OVERALL

ALTERNATIVES

SPECS

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REVIEWS

Intel Core i9-12900K review: 74 specs compared

Avg. price:~£280PassMark multi-core score:41148N. of physical cores:16CPU boost clock speed:5.2 GHzCPU socket:LGA1700TDP (Thermal design power):125 W

Intel Core i9-12900K Review: Compare 74 technical specifications, 56 expert and video reviews and 5 best-of lists to see how this product ranks in the Processors category and whether it is worth buying.

Intel Core i9-12900K

8.4/10

★Better than 99% of processors

8.6

★Better than 98%

8.3

★Better than 92%

8.7

★Better than 97%

8.2

★Better than 97%

7.8
Gaming
Gaming
7.8/ 10
✕
What it is
Measures single-core benchmark performance, peak boost clock speeds, and fast L3 cache sizing critical for high frame rates.
When it matters
When you want to play demanding mobile games, 3D titles, or run graphics-intensive apps smoothly.
Score distribution
▼
<55-66-77-88-99-10
Score components
30.0%
8.8
PassMark single-core score
25.0%
8.0
Geekbench 6 single-core score
20.0%
8.7
CPU boost clock speed
17.0%
3.8
L3 cache
8.0%
10
N. of physical cores
9.1
Video editing
Video editing
9.1/ 10
✕
What it is
Assesses multi-core benchmark throughput, total physical core and thread count, and cache bandwidth for rapid video rendering.
When it matters
When evaluating how effectively this processors meets your specific video editing needs.
Score distribution
▼
<55-66-77-88-99-10
Score components
45.0%
10
Geekbench 6 multi-core score
20.0%
10
N. of physical cores
20.0%
10
CPU threads
15.0%
3.8
L3 cache

Where to buy

*As an Amazon Associate, we earn from qualifying purchases.

Best rankings

What reviewers say about the Intel Core i9-12900K

Based on 10 · 26

Reviewers praise its gaming and raw speed, but it runs hot and draws a lot of power; opinions on value are split.

Praised

Mixed views

Criticised

Pick a topic to see who said what

What owners say about the Intel Core i9-12900K

Based on 142 owners sharing their experience in online comments

66%positive14%mixed20%negative

Owners praise its strong, lasting performance, while excessive heat under demanding loads remains the clearest frustration.

What owners like

Owners say it stays fast in gaming and in video encoding, rendering and other heavy work, especially with E-cores disabled.37
With a 240–360mm liquid cooler or a strong tower cooler, gaming temps often stay around 50–65°C, while long full-load runs run hotter.22
Owners reach about 5.1 to 5.5 GHz on the performance cores, and lower voltage or disabling E-cores leaves extra room to push further.20
Disabling E-cores or pinning games to the performance cores removed stutter and frame judder in several titles, including Elden Ring.11
Running at stock or with mild tuning stays stable for years, and disabling E-cores or hyperthreading kept systems smooth with many apps open.11
Owners use it for video encoding, rendering, coding and AI work, and say it handles many open apps smoothly, with E-cores off for emulator setups.8
Owners who bought it at a discount say it still performs strongly for the money compared with rival chips of the same period.7
Raising memory speed to 3600 MT/s with a small voltage bump and tightening timings improved game results and cut memory latency to around 40ns.4
A negative voltage offset of about 0.05 V cut temperatures by 10 to 15°C and power draw from 250W to 220W, with similar benchmark scores.4
Owners paired it with DDR4 memory at 3600 to 4000 MT/s, finding the performance gap to DDR5 small while the cost was much lower.3

What owners dislike

Under sustained full load such as Cinebench, it can reach 90 to 100°C and draw 240 to 290W, even with liquid coolers.26
Games sometimes run on the efficiency cores, causing stutter and frame judder in titles like Elden Ring and iRacing; disabling E-cores fixed it for many.13
Needs a strong cooler, good thermal paste, correct mounting pressure and BIOS load-line settings; cheap coolers struggle under full load.7
Scores and clocks can fall short when cooling is poor or paste is old, with the performance cores dropping to around 3.2 GHz near 99°C.6
Total build cost adds up because DDR5 memory became expensive and boards and coolers add cost, and the 12600K was a cheaper alternative.5
Some DDR5 kits only reached 4266 to 5600 MT/s with XMP, and DDR5 was hard to find or expensive on some boards.5
Aggressive voltage or clock tuning caused crashes in Cinebench and games, often fixed by backing off voltage or fixing the cooler mounting.5
In many games, especially at 4K, it performs close to older or cheaper chips, with clear gains only in a few titles.5
Stock voltages are set high and draw around 250W, but a small undervolt, or about 1.23V at 5 GHz, lowers power and heat with little speed loss.5

Points mentioned by at least 3 owners, most mentioned first.

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Technical Specifications of processor Intel Core i9-12900K

8.4

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Platform

9.2

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Processor type

CPU socket

Chipset

CPU architecture

Instruction sets

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What reviewers say

Performance

9.1

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N. of physical cores

CPU threads

CPU boost clock speed

CPU base clock speed

PassMark multi-core score

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What reviewers say

Architecture

7.7

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Semiconductor size

Foundry

L3 cache

L2 cache

L1 cache

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What reviewers say

Memory & PCIe

8.4

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DDR memory version

Maximum memory speed

Max memory speed (JEDEC)

Max memory speed (XMP / EXPO)

?

Maximum memory capacity

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What reviewers say

Integrated graphics

8.0

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Integrated graphics

Integrated GPU model

Integrated GPU execution units

Integrated GPU base frequency

Integrated media encoders/decoders

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Power & Thermal

3.3

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TDP (Thermal design power)

Base power (PL1)

Boost power (PL2)

Tau (power duration limit)

N/A

Configurable TDP

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What reviewers say

Intel Core i9-12900K vs the average processor

Why is Intel Core i9-12900K better than the average processor?

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3.59x higher PassMark score
This processor has a higher PassMark benchmark score than the average processor (41,148 vs 11,469). The average processor scores 11,469 in PassMark benchmark.
41,148 vs 11,469
2.99x higher multi-core score
This processor has a higher Geekbench 6 multi-core score than the average processor (15,560 vs 5,209). The average processor scores 5,209 in Geekbench 6 multi-core.
15,560 vs 5,209
10 more CPU cores
This processor has more CPU cores than the average processor (16 vs 6). The average processor has 6 CPU cores.
16 vs 6
3.63x better multi-core performance
This processor has a higher multi-core performance than the average processor (10,180 vs 2,804.5). The average processor scores 2,804.5 in Cinebench R20 multi-core.
10,180 vs 2,804.5
61.4% better single-core performance
This processor has a higher PassMark single-core score than the average processor (4,128 vs 2,558). The average processor scores 2,558 in PassMark single-core.
4,128 vs 2,558
16 more CPU threads
This processor has more CPU threads than the average processor (24 vs 8). The average processor has 8 CPU threads.
24 vs 8
68.8% higher single-core score
This processor has a higher Geekbench 6 single-core score than the average processor (2,591 vs 1,535). The average processor scores 1,535 in Geekbench 6 single-core.
2,591 vs 1,535
18.2% higher boost clock
This processor has a higher boost clock speed than the average processor (5.2 GHz vs 4.4 GHz). The average processor reaches boost clock speed of 4.4 GHz.
5.2 GHz vs 4.4 GHz

29.9% higher review score
Reviews score
8.7/ 10
✕
What it is
Average grade from independent test sites, magazines and video reviewers, 1–10.
How we count it
Grades: Each review's own score is converted to 1–10; without one, we grade the review ourselves. Big test sites count more, short reviews half as much as full tests. A video review counts half.
Score: The average grade is 80% of the review mark; the number of reviews is the other 20% (1 review = 5, the typical number in this category = 8, the most-reviewed model = 10).
Enough data: With few reviews, the average grade is pulled toward the typical grade of this category. No reviews yet: 7.2 for now.
Share: Reviews count 25% of the overall score.
Score distribution
▼
<55-66-77-88-99-10
★ Better than 97% of models
80%
8.4
Average grade
20%
9.9
Popularity
Grades by review (56)
31 reviews: 16 with a printed score, 15 estimated from the review. 25 video reviews, each counting half as much as a written test. Reviews count 25% of the overall score.
User ratings collected online are not part of this score.
8.7 vs 6.7
20.8% higher sentiment score
8.7 vs 7.2
18.3% better value for money
Intel Core i9-12900K has better value for money than the average processor (8.62 vs 7.3).
8.62 vs 7.29
5.1% higher list score
List score
8.2/ 10
✕
What it is
How often independent test sites, magazines and video reviewers put this model in their best-of lists for this category.
How we count it
Points: The model in the most lists of this category gets 10; the others get 8 to 10 in proportion. In no list yet: 7.5. Lists count 25% of the overall score.
Enough data: Every list counts, even a single one. With fewer than 5 best-of lists in the category, this part is left out.
Lists with this model (5)
List score: in 5 of 87 lists (6%)
8.2 vs 7.8

Modern CPU socket
This processor uses a more modern CPU socket than the average processor (LGA1700 vs FP5).
LGA1700 vs FP5
Broader instruction support
This processor supports a broader instruction set than the average processor (MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA, CLMUL, BMI1, BMI2, ABM, ADX vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA, AMD-V).
MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA, CLMUL, BMI1, BMI2, ABM, ADX vs MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, F16C, FMA3, AES, SHA, AMD-V
Supports heterogeneous scheduling
This processor uses heterogeneous multi-processing, while the average processor does not. 24.8% of processors use it.

3.59x higher PassMark score
This processor has a higher PassMark benchmark score than the average processor (41,148 vs 11,469). The average processor scores 11,469 in PassMark benchmark.
41,148 vs 11,469
2.99x higher multi-core score
This processor has a higher Geekbench 6 multi-core score than the average processor (15,560 vs 5,209). The average processor scores 5,209 in Geekbench 6 multi-core.
15,560 vs 5,209
10 more CPU cores
This processor has more CPU cores than the average processor (16 vs 6). The average processor has 6 CPU cores.
16 vs 6
3.63x better multi-core performance
This processor has a higher multi-core performance than the average processor (10,180 vs 2,804.5). The average processor scores 2,804.5 in Cinebench R20 multi-core.
10,180 vs 2,804.5
61.4% better single-core performance
This processor has a higher PassMark single-core score than the average processor (4,128 vs 2,558). The average processor scores 2,558 in PassMark single-core.
4,128 vs 2,558
16 more CPU threads
This processor has more CPU threads than the average processor (24 vs 8). The average processor has 8 CPU threads.
24 vs 8
68.8% higher single-core score
This processor has a higher Geekbench 6 single-core score than the average processor (2,591 vs 1,535). The average processor scores 1,535 in Geekbench 6 single-core.
2,591 vs 1,535
18.2% higher boost clock
This processor has a higher boost clock speed than the average processor (5.2 GHz vs 4.4 GHz). The average processor reaches boost clock speed of 4.4 GHz.
5.2 GHz vs 4.4 GHz
65.3% higher Cinebench R20 single-core score
This processor has a higher Cinebench R20 single-core score than the average processor (810 vs 490). The average processor scores 490 in Cinebench R20 single-core.
810 vs 490
Higher base clock
This processor has a higher base clock than the average processor (8x3.2 GHz & 8x2.4 GHz vs 4x3.4 GHz).
8x3.2 GHz & 8x2.4 GHz vs 4x3.4 GHz
Unlocked for overclocking
This processor has an unlocked multiplier, while the average processor does not. 22.6% of processors offer this.
2 wider front-end design
This processor has a higher front-end width than the average processor (6 vs 4). The average processor uses front-end width of 4.
P-core 6, E-core 6
6 vs 4
2x higher bus transfer rate
This processor has a higher bus transfer rate than the average processor (16 GT/s vs 8 GT/s). The average processor offers bus transfer rate of 8 GT/s.
16 GT/s vs 8 GT/s
More advanced Turbo Core
This processor has a more advanced Turbo Core version than the average processor (3 vs 2).
Intel Turbo Boost
3.0 vs 2.0

4.67x larger L2 cache
This processor has a higher L2 cache than the average processor (14 MB vs 3 MB). The average processor has L2 cache of 3 MB.
14 MB vs 3 MB
More advanced microarchitecture
This processor uses a more advanced microarchitecture than the average processor (Alder Lake vs Kaby Lake).
Alder Lake vs Kaby Lake
2.5x more L2 per core
This processor has more L2 cache per core than the average processor (1.3 MB/core vs 0.5 MB/core). The average processor provides 0.5 MB/core of L2 cache per core.
E-core cluster: 0.5 MB shared
1.25 MB/core vs 0.5 MB/core
3.73x larger L1 cache
This processor has a higher L1 cache than the average processor (1,433.6 KB vs 384 KB). The average processor has L1 cache of 384 KB.
1,433.6 KB vs 384 KB
Mixed big and small cores
This processor uses a big.LITTLE design, while the average processor does not. 22.6% of processors use one.
3.33x larger L3 cache
This processor has a higher L3 cache than the average processor (30 MB vs 9 MB). The average processor has L3 cache of 9 MB.
30 MB vs 9 MB
More advanced foundry
This processor uses a more advanced foundry process than the average processor (Intel 7 vs Intel 14 nm).
Intel 7 vs Intel 14 nm

Newer PCIe version
This processor supports a newer PCIe version than the average processor (5 + 4 vs 3).
5.0 + 4.0 vs 3.0
Newer DDR support
This processor supports a newer DDR generation than the average processor (DDR4/DDR5 vs DDR4).
DDR4/DDR5 vs DDR4
Supports memory overclocking
This processor supports memory overclocking, while the average processor does not. 43.9% of processors support memory overclocking.
4 more PCIe lanes
This processor has more PCIe lanes than the average processor (20 vs 16). The average processor offers 16 PCIe lanes.
20 vs 16
2x more memory capacity
This processor has more maximum memory capacity than the average processor (128 GB vs 64 GB). The average processor supports 64 GB of memory.
128 GB vs 64 GB
63.8% higher memory bandwidth
This processor has a higher memory bandwidth than the average processor (76.8 GB/s vs 46.9 GB/s). The average processor offers memory bandwidth of 46.9 GB/s.
76.8 GB/s vs 46.9 GB/s
Supports ECC memory
This processor supports ECC memory, while the average processor does not. 32% of processors support it.
50% higher memory speed
This processor has a higher maximum memory speed than the average processor (4,800 MHz vs 3,200 MHz). The average processor supports memory speed of 3,200 MHz.
4,800 MHz vs 3,200 MHz

1 more supported displays
This processor has more supported displays than the average processor (4 vs 3). The average processor supports 3 displays.
4 vs 3

Why is Intel Core i9-12900K worse than the average processor?

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3.77x higher boost power
This processor has a higher boost power draw than the average processor (241 W vs 64 W). The average processor has a boost power draw of 64 W.
241 W vs 64 W
No configurable TDP
This processor does not support configurable TDP, while the average processor does. 53.7% of processors support configurable TDP.
2.78x higher base power
This processor has a higher base power draw than the average processor (125 W vs 45 W). The average processor has a base power draw of 45 W.
125 W vs 45 W
2.78x higher TDP
This processor has a higher TDP than the average processor (125 W vs 45 W). The average processor has a TDP of 45 W.
125 W vs 45 W
21.5% larger die size
This processor has a higher die size than the average processor (215 mm² vs 177 mm²). The average processor has a die size of 177 mm².
215 mm² vs 177 mm²
Limited PCIe bifurcation
This processor supports less flexible PCIe bifurcation than the average processor (x16, x8/x8, x8/x4/x4 vs x16, x8/x8, x4/x4/x4/x4).
x16, x8/x8, x8/x4/x4 vs x16, x8/x8, x4/x4/x4/x4

21.5% larger die size
This processor has a higher die size than the average processor (215 mm² vs 177 mm²). The average processor has a die size of 177 mm².
215 mm² vs 177 mm²

Limited PCIe bifurcation
This processor supports less flexible PCIe bifurcation than the average processor (x16, x8/x8, x8/x4/x4 vs x16, x8/x8, x4/x4/x4/x4).
x16, x8/x8, x8/x4/x4 vs x16, x8/x8, x4/x4/x4/x4

3.77x higher boost power
This processor has a higher boost power draw than the average processor (241 W vs 64 W). The average processor has a boost power draw of 64 W.
241 W vs 64 W
No configurable TDP
This processor does not support configurable TDP, while the average processor does. 53.7% of processors support configurable TDP.
2.78x higher base power
This processor has a higher base power draw than the average processor (125 W vs 45 W). The average processor has a base power draw of 45 W.
125 W vs 45 W
2.78x higher TDP
This processor has a higher TDP than the average processor (125 W vs 45 W). The average processor has a TDP of 45 W.
125 W vs 45 W

Video reviews

Hands-on testing, unboxing, and real-world video evaluations

7.0

JayzTwoCents

≈ estimated

30/04/2022

Long-term use report · 30 days of daily work use

Verdict

Intel Core i9-12900K is the best gaming system if money is no object, but heat, power draw and early platform issues are real.

8.0

RedGamingTech

≈ estimated

23/03/2022

Hands-on test · memory timings and speed tuning

Verdict

Intel Core i9-12900K gets real gains from tighter DDR5 timings, though results vary by kit and resolution.

8.0

Hardware Unboxed

≈ estimated

22/12/2021

Benchmark test · 41 games with E-cores on and off

Verdict

Intel Core i9-12900K is best with E-cores left on for gaming, since disabling them rarely helps and the gains are small.

7.0

A2K

≈ estimated

18/11/2021

Hands-on test · overclocking, memory tuning and efficiency

Verdict

Intel Core i9-12900K doesn't justify overclocking for almost anyone; faster, lower-latency memory is the better route.

7.0

TechteamGB

≈ estimated

10/11/2021

Hands-on review · P-core and E-core benchmarks

Verdict

Intel Core i9-12900K posts strong per-core results, but high power draw and heat make the hybrid design less appealing for now.

9.0

optimum

≈ estimated

05/11/2021

Hands-on review · benchmarks, gaming and production tests

Verdict

Intel Core i9-12900K is a very solid enthusiast CPU that beats the Ryzen 9 5900X, though its gains over cheaper chips are marginal.

9.0

MOBHouse

✓ explicit

04/11/2021

Hands-on review · benchmarks and boost tests

Verdict

Intel Core i9-12900K is a strong buy for gamers and creators, but sustained boost needs a big cooler.

8.0

Hardware Unboxed

≈ estimated

04/11/2021

Hands-on review · gaming, productivity, power and temperature tests

Verdict

Intel Core i9-12900K is a top gaming CPU, but not the obvious buy given its price, power draw and AMD alternatives.

8.0

Gear Seekers

≈ estimated

04/11/2021

Hands-on review · gaming benchmarks and platform costs

Verdict

Intel Core i9-12900K is competitive in gaming and good value for the money, but early-adopter memory and motherboard costs add up.

8.0

Hardware Canucks

≈ estimated

04/11/2021

Hands-on review · Windows 10 vs 11 benchmarks, gaming and power

Verdict

Intel Core i9-12900K is surprisingly good value next to the 5950X, though it runs best on Windows 11 and the platform is still maturing.

9.0

Tech Critter

≈ estimated

04/11/2021

Hands-on review · benchmarks, power draw and cooling tests

Verdict

Intel Core i9-12900K takes the performance crown back from AMD, though its power draw is slightly higher than the 11th Gen's.

8.0

KitGuruTech

✓ explicit

04/11/2021

Hands-on review · performance, power and temperature tests

Verdict

Intel Core i9-12900K is worth serious consideration but not a must-have, given its power draw and heat.

More graded video reviews (2)

TechniQualities

creator’s own scoreestimated by us

Nicolas11x12 Deutsch · 29/01/2022

Hands-on review · gaming, productivity, temperatures and efficiency

Intel Core i9-12900K is a strong gaming CPU and a good price-performance pick, but it lags in power efficiency and runs hot.

Likes

Strong gaming results, especially in average and 1% minimum frame rates
Large single-core performance gain over the previous generation
Slightly better price-performance than the Ryzen 9 5950X

Dislikes

Draws more power than the Ryzen 9 5950X at full load
Hits 83 °C at full load even with a 360 mm AIO cooler
Boot loop and unstable DDR5 XMP profile on the test system

DasMonty · 09/01/2022

Hands-on review · power limits and cooling

Intel Core i9-12900K is fast in Premiere Pro but too power-hungry at default settings, so it suits only experts with custom water cooling.

Likes

Clearly faster in Premiere Pro than older chips
Cool and quiet with reduced power limits
Performance barely drops at 125 watt limit

Dislikes

Default power limits too high for normal cooling
Throttles heavily without strong custom water cooling
Benchmark results do not reflect real everyday use

KreativEcke · 04/11/2021

Hands-on review · benchmarks, gaming, power and heat

Intel Core i9-12900K is back on top for gaming and raw performance, but its power draw, heat and price are high.

Likes

Strong single-core and multi-core rendering performance
Gaming results ahead of the 11900K in most titles
Clear improvement over the previous Intel generation

Dislikes

High power draw under load, reaching over 200 watts
CPU runs very hot even with a large liquid cooler
High total cost of the CPU, Z690 board and DDR5 memory

PC Games Hardware · 04/11/2021

Hands-on test · gaming, applications, efficiency and buying advice

Intel Core i9-12900K leads in gaming, but efficiency and DDR5 costs are concerns, so buyers should wait a few weeks.

Likes

Top gaming performance
Clearly more efficient than the predecessor
Good balance of performance and efficiency cores

Dislikes

Application performance slightly behind AMD's top model
Efficiency improvement could have been bigger
DDR5 memory and platform costs are high

HardwareDealz · 04/11/2021

Hands-on test · gaming, synthetic benchmarks and power draw

Intel Core i9-12900K is back on top in gaming, but its price and power draw are still open questions.

Likes

Clear gaming lead; Intel is back on top
Strong synthetic benchmark results
Large generational gains in games

Dislikes

Power draw up to about 235 W in Cinebench
Temperatures around 84 degrees in the stress test
Pricing is not yet clear, so value is still open

MoreThanTech · 04/11/2021

Hands-on review · 24 tests across productivity and gaming

Intel Core i9-12900K is a welcome step forward for Intel, with excellent productivity but high power, demanding cooling and prices.

Likes

Excellent productivity performance
Lower power draw than the previous generation
Hybrid architecture delivering real gains
Solid performance given what this generation costs

Dislikes

Needs a 280 mm cooler at minimum, with 360 mm preferred
High prices for this generation
DDR5 memory offers little benefit so far

SaddyTech · 04/11/2021

Hands-on review · long benchmark suite and platform costs

Intel Core i9-12900K offers top consumer performance, but CPU, board and DDR5 costs weigh heavily, and it is overkill for most users.

Likes

Best overall performance across the tested workloads
Platform can keep improving over the years with new memory and boards
Strong results for content creators and heavy workloads

Dislikes

High total cost of CPU, motherboard and DDR5 memory
DDR5 memory is too expensive for the gain it delivers
Overkill for most users, mainly useful for content creators

Prodigeek · 04/11/2021

Full review · benchmarks, overclocking and platform costs

The Intel Core i9-12900K is a huge generational leap, but its platform is costly, so early adopters should wait for prices to settle.

Likes

Big generational performance gain
Reasonable processor value within the complete package
Extensive benchmark testing across many workloads

Dislikes

DDR5 memory and motherboards make the platform expensive
DDR5 memory not worth it for early adopters
Supply shortages make launch buying less attractive

Expert reviews

In-depth analysis and verdict from leading tech publications

8.0

pcmag.com

✓ explicit

04/11/2021

Intel Core i9-12900K Review - PCMag

Benchmark test · Desktop processor

Verdict

The Intel Core i9-12900K is a strong content-creation chip on Windows 11, but it needs a new LGA 1700 board and can trail AMD on Windows 10.

9.0

techspot.com

✓ explicit

04/11/2021

Intel Core i9-12900K Review: Alder Lake Arrives | TechSpot

Benchmark review · Gaming desktop CPU

Verdict

The Intel Core i9-12900K edges out the Ryzen 9 5950X in gaming by a small margin, but it runs hotter and draws more power than the 5950X.

9.0

trustedreviews.com

✓ explicit

04/11/2021

Intel Core i9-12900K Review

Lab test · High-end desktop CPU

Verdict

The Intel Core i9-12900K is the fastest chip in this test group for gaming, but it runs hot and draws the most power of any chip tested.

9.0

tomshardware.com

✓ explicit

02/07/2022

Intel Core i9-12900K and Core i5-12600K Review: Retaking the Gaming Crown

Gaming benchmarks · Desktop CPU

Verdict

The Intel Core i9-12900K leads gaming and most productivity tests, but it needs Windows 11 and a new motherboard to run at its best.

9.0

windowscentral.com

≈ estimated

04/11/2021

Intel Core i9-12900K review: Intel finally has an answer for AMD

Hands-on test · Gaming CPU

Verdict

The Intel Core i9-12900K is a strong pick for single-core speed and gaming, but it has fewer threads than the Ryzen 9 5950X.

9.0

hardwarezone.com.sg

≈ estimated

04/11/2021

Intel 12th Gen Core i9-12900K review: The best gaming CPU

Hands-on test · Gaming and productivity

Verdict

The Intel Core i9-12900K is a strong gaming processor that also handles productivity well, though its heat and power draw are high.

9.0

gamesbeat.com

≈ estimated

04/11/2021

Intel Core i9-12900K review - This will begin to make things right

Head-to-head test · Gaming CPU

Verdict

The Intel Core i9-12900K is a fast gaming chip with a big single-core lead, but the Ryzen 9 5950X wins heavy multitasking and compression tests.

9.5

custompc.com

✓ explicit

04/10/2023

Intel Core i9-12900K review Would you like to see gaming-specific benchmarks or productivity-focused test results for this processor?

Lab test · Desktop gaming CPU

Verdict

The Intel Core i9-12900K is a top gaming and multi-core chip that matches or beats the Ryzen 9 5950X, but needs a new motherboard and possibly a cooler.

9.0

storagereview.com

≈ estimated

08/03/2022

Intel Core i9-12900K (Alder Lake) Review - StorageReview.com

Lab test · Workstation comparison

Verdict

The Intel Core i9-12900K holds its own against a 64-core workstation in graphics and map tests, but trails it in heavily threaded workstation work.

9.5

gadgetpilipinas.net

≈ estimated

29/11/2021

Intel Core i9-12900K Review - Impressive Engineering and Innovation

Benchmark review · Desktop CPU

Verdict

The Intel Core i9-12900K is the top pick for gaming and heavy multithreaded work, but it needs a new motherboard and draws more power than AMD rivals.

8.0

techporn.ph

✓ explicit

26/01/2022

Intel Core i9-12900K Desktop Processor Review - TechPorn

Benchmark review · Desktop CPU

Verdict

The Intel Core i9-12900K is one of the fastest desktop chips, especially for 3D rendering and single-thread work, but it runs hot and needs a strong cooler and power supply.

8.0

computerbase.de

≈ estimated

04/11/2021

Intel Core i9-12900K, i7-12700K & i5-12600K Review: Hybrid CPU Debut with P-Cores and E-Cores

Benchmark review · Alder Lake CPU

Verdict

The Intel Core i9-12900K is about 20% faster than the Core i9-11900K at the same clock in single-core work, and its E-cores add a lot of multi-core speed.

9.8

geeknetic.es

✓ explicit

4 de noviembre de 2021

Intel Core i9-12900K Review: Full In-Depth Analysis

Feature overview · Hybrid desktop CPU

Verdict

The Intel Core i9-12900K is a powerful hybrid chip with 24 threads and PCIe 5.0, but its best features need the new Z690 chipset.

9.6

profesionalreview.com

✓ explicit

04/11/2021

Intel Core i9-12900K Review (Complete Analysis)

Hands-on test · Socket and cooling

Verdict

The Core i9-12900K is expected to beat the Ryzen 9 5950X in games, but it needs its own cooler and new mounting kits for LGA 1700.

9.0

elchapuzasinformatico.com

≈ estimated

04/11/2021

Intel Core i9-12900K Review: The new king of the consumer market

Hands-on test · Benchmarks and heat

Verdict

The Intel Core i9-12900K beats the Ryzen 9 5950X in games and most tests, but it draws about 200 W under stress and runs hot.

9.2

muycomputer.com

✓ explicit

04/11/2021

Intel Core i9-12900K Review: Alder Lake-S is the Future Realised

Architecture deep-dive · Alder Lake

Verdict

The Intel Core i9-12900K combines fast and efficient cores on one die, with up to 19% more per-clock speed than the 11900K, according to Intel.

9.0

itwarelatam.com

≈ estimated

08/02/2022

Intel Core i9-12900K Review: The World's Most Powerful Gaming CPU

Benchmark test · Gaming and rendering

Verdict

The Intel Core i9-12900K leads most benchmarks, including 3D rendering, but with an RTX 3060 Ti its gaming lead over the Core i5-12600K is small.

9.0

itseller.uy

≈ estimated

08/02/2022

Intel Core i9-12900K Review: The Most Powerful Gaming CPU

Benchmark test · Gaming and rendering

Verdict

The Intel Core i9-12900K leads most benchmarks, including 3D rendering, but with an RTX 3060 Ti its gaming lead over the Core i5-12600K is small.

8.0

rpp.pe

≈ estimated

05/05/2022

Intel gets serious with the Core i9-12900K | Review

Hands-on review · Platform upgrade

Verdict

The Intel Core i9-12900K is a strong chip for gaming and heavy creative work, but it needs a new motherboard, a larger cooler and a powerful power supply.

8.0

pisapapeles.net

≈ estimated

22/08/2022

Intel Core i9-12900K Processor Review

Hands-on test · Overheating and graphics

Verdict

The Intel Core i9-12900K is quick in single-core work and games, but under heavy load it runs very hot and needs a separate graphics card.

Third-party reviews

What customers like about Intel Core i9-12900K

World-class single-core performance, making it a top-tier choice for high-refresh-rate gaming
Hybrid architecture (P-cores and E-cores) provides a significant boost for multi-threaded productivity tasks like video editing and 3D rendering
Includes support for future-proof standards like DDR5 RAM and PCIe 5.0
Better overall performance-to-value ratio compared to previous 11th Gen flagships
Excellent for intensive multi-tasking and professional software workflows

What customers don't like about Intel Core i9-12900K

Extremely high power consumption under heavy loads, often requiring a 360mm AIO liquid cooler to prevent thermal throttling
Requires a new LGA1700 motherboard (Z690/Z790), increasing the total cost of adoption
High operating temperatures; users often report the chip hitting 90-100°C during stress tests without high-end cooling
Optimal performance is largely dependent on Windows 11 due to its specialized thread scheduler for the hybrid design
Diminishing returns for pure gamers compared to the more affordable i5-12600K or i7-12700K

Verdict

The Intel Core i9-12900K is a high-performance desktop processor from the Alder Lake generation featuring a hybrid architecture with 16 cores (8 Performance-cores and 8 Efficient-cores) and 24 threads. Key specifications include a maximum turbo frequency of up to 5.20 GHz, a 30 MB Intel Smart Cache, and support for both DDR5-4800 and DDR4-3200 memory on the LGA 1700 socket. Main pros include exceptional single-core and multi-threaded performance for gaming and content creation, as well as future-proofing with PCIe 5.0 support and aggressive pricing relative to competitors. However, notable cons include high power consumption (reaching a 241W maximum turbo power), high operating temperatures that necessitate robust cooling solutions, and the requirement for a new Z690 motherboard for peak performance.

Best alternatives

AMD Ryzen 9 7900

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AMD Ryzen 7 9700X

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AMD Ryzen 7 7800X3D

Processors

Intel Core i7-12700KF

Processors

AMD Ryzen 9 7900X

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AMD Ryzen 5 7600X3D

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AMD Ryzen 7 5800X3D

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Intel Core Ultra 7 265

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Intel Core i7-14700F

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Intel Core i7-13700K

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AMD Ryzen 9 9900X

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Intel Core i7-12700

Processors

See best alternatives in Buying Guide

Compare Intel Core i9-12900K with other processors

Graphic comparison of Intel Core i9-12900K and other processors

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