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Scored using Graphics cards Methodology v1.0
Graphics cards Methodology v1.0
Mathematical & Unbiased Scoring
Products in this category are scored under Frontum Graphics cards Methodology v1.0: technical specifications plus authentic consumer ratings, with 0% commercial bias.
Explore Graphics cards Methodology v1.0

ASUS Phoenix Radeon RX 6400 Review | 118 Data compared

Avg. price:~£150VRAM:4 GBMemory bus width:64 bitThermal Design Power (TDP):53 W

ASUS Phoenix Radeon RX 6400 Review: Compare 118 technical specifications and user reviews to see how this product ranks in the Graphics cards category and whether it is worth buying.

ASUS Phoenix Radeon RX 6400
5.1/10

Overall score

Score
5.1/ 10
✕
What it is
An overall evaluation of the graphics card's quality, based on technical analyses and user reviews.
When it matters
When you need a quick reference to identify the best graphics cards on the market.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 86% of models
Score components

90%

4.7

Technical score

10%

8.4

User score

â–¼Worse than 86% of graphics cards
6.5

Value for money

Value for money
6.5/ 10
✕
What it is
An indicator that combines the graphics card's overall rating with its cost.
When it matters
When you are looking for a graphics card that offers a strong balance of performance, features, and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 80% of models
Score components

70%

5.1

Overall score

30%

9.7

Price

â–¼Worse than 80%
4.7

Technical score

Technical score
4.7/ 10
✕
What it is
An assessment of technical performance for products in the Graphics cards category across these key areas: Performance, Memory, Platform & Features, Connectivity & Media, Power & Cooling, Design.
When it matters
When you want to compare graphics cards based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 88% of models
Score components

44%

3.6

Performance

24%

2.8

Memory

12%

7.0

Power & Cooling

11%

8.8

Platform & Features

5%

8.2

Design

4%

6.0

Connectivity & Media

â–¼Worse than 88%
8.4

User score

User score
8.4/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the graphics card.
When it matters
When you want to understand how a graphics card performs in real use and how reliable it is in terms of performance, temperatures, noise, stability, and long-term ownership.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 69% of models
Score components

70%

9.0

User ratings

30%

7.1

Number of reviews

Based on ratings from across the web.
â–²Better than 69%
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Best prices
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Best rankings
Available: ranking among products currently available (including other versions of this product).All: ranking among all products in the database.
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Technical Specifications of graphics card ASUS Phoenix Radeon RX 6400

Technical score
Technical score
4.7/ 10
✕
What it is
An assessment of technical performance for products in the Graphics cards category across these key areas: Performance, Memory, Platform & Features, Connectivity & Media, Power & Cooling, Design.
When it matters
When you want to compare graphics cards based on technical performance and available features.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 88% of models
Score components:

44%

3.6

Performance

24%

2.8

Memory

12%

7.0

Power & Cooling

11%

8.8

Platform & Features

5%

8.2

Design

4%

6.0

Connectivity & Media

4.7
User score
User score
8.4/ 10
✕
What it is
A rating that combines user reviews and the total number of reviews received by the graphics card.
When it matters
When you want to understand how a graphics card performs in real use and how reliable it is in terms of performance, temperatures, noise, stability, and long-term ownership.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 69% of models
Score components

70%

9.0

User ratings

30%

7.1

Number of reviews

Based on ratings from across the web.
8.4
Popularity
Popularity
7.1/ 10
✕
What it is
An indicator based on the number of reviews received by the graphics card.
When it matters
When you prefer a graphics card that has already been chosen and reviewed by many other users.
Score distribution
â–¼
<55-66-77-88-99-10
â–² Better than 66% of models
Popularity:
ASUS Phoenix Radeon RX 6400 has a popularity score of 7.1 points, which is higher than that of 66.5% of products in this category.
7.1
Value for money
Value for money
6.5/ 10
✕
What it is
An indicator that combines the graphics card's overall rating with its cost.
When it matters
When you are looking for a graphics card that offers a strong balance of performance, features, and price.
Score distribution
â–¼
<55-66-77-88-99-10
â–¼ Worse than 80% of models
Score components:

70%

5.1

Overall score

30%

9.7

Price

6.5
3DMark Time Spy benchmark score
3,876 points
Market range: <4k points – >34k points
This graphics card scores 3,876 points in 3DMark Time Spy, which is lower than 90.9% of graphics cards.
3DMark Port Royal score
3,300 points
Market range: <0 points – >25k points
This graphics card scores 3,300 points in 3DMark Port Royal, which is lower than 77.8% of graphics cards and equal to 0.1% of graphics cards.
PassMark (G3D) result
12,179 points
Market range: <7.7k points – >36k points
This graphics card scores 12,179 points in PassMark G3D, which is lower than 80.9% of graphics cards.
PassMark (DirectCompute) result
2,803 points
Market range: <3.1k points – >26.3k points
This graphics card scores 2,803 points in PassMark DirectCompute, which is lower than 92.1% of graphics cards.
Floating-point performance
3.56 TFLOPS
Market range: <4.38 TFLOPS – >57.42 TFLOPS
This graphics card delivers 3.56 TFLOPS floating-point performance, which is lower than that of 91.5% of graphics cards and equal to that of 0.1% of graphics cards.
Show more
VRAM
4 GB
Market range: <4 GB – >24 GB
This graphics card has 4 GB of VRAM, which is less than 88% of graphics cards and equal to 6% of graphics cards.
Memory type
GDDR6
GDDR version
GDDR6
This graphics card uses GDDR6 memory, which is newer than on 15.9% of graphics cards and equal to 40.3% of graphics cards.
Memory bus width
64 bit
Market range: <64 bit – >384 bit
This graphics card uses a 64 bit memory bus, which is narrower than that of 97.2% of graphics cards and equal to that of 2.8% of graphics cards.
Maximum memory bandwidth
128 GB/s
Market range: <168 GB/s – >960 GB/s
This graphics card reaches 128 GB/s memory bandwidth, which is lower than that of 92.6% of graphics cards and equal to that of 0.7% of graphics cards.
Show more
PCI Express (PCIe) version
4
This graphics card supports PCIe 4, which is newer than on 22.3% of graphics cards and equal to 52.1% of graphics cards.
PCIe lanes
x4
This graphics card uses x4 PCIe lanes, which is fewer than 99% of graphics cards and equal to 1.1% of graphics cards.
DirectX version
12 Ultimate
This graphics card supports DirectX 12 Ultimate, which is more advanced than on 22.6% of graphics cards and equal to 77.4% of graphics cards.
Vulkan version
1.3
This graphics card supports Vulkan 1.3, which is older than on 79.4% of graphics cards and equal to 15.7% of graphics cards.
OpenGL version
4.6
This graphics card supports OpenGL 4.6, which is more advanced than on 1.9% of graphics cards and equal to 98.1% of graphics cards.
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Max displays supported
2
Market range: <4 – >4
This graphics card supports up to 2 displays, which is fewer than 97.8% of graphics cards and equal to 2.1% of graphics cards.
Max digital resolution
7680x4320
This graphics card supports a maximum digital resolution of 7680x4320, which is higher than that of 9% of graphics cards and equal to that of 91% of graphics cards.
DisplayPort outputs
1
Market range: <1 – >3
This graphics card offers 1 DisplayPort outputs, which is fewer than 88.7% of graphics cards and equal to 8.6% of graphics cards.
DisplayPort version
1.4a
This graphics card supports DisplayPort 1.4a, which is more advanced than on 19.5% of graphics cards and equal to 47.1% of graphics cards.
DisplayPort link rates
16.2 Gbps
Market range: <5.4 Gbps – >80 Gbps
This graphics card supports DisplayPort link rates up to 16.2 Gbps, which is slower than on 58.4% of graphics cards and equal to 2% of graphics cards.
Show more
Thermal Design Power (TDP)
53 W
Market range: <60 W – >360 W
This graphics card has a TDP of 53 W, which is lower than that of 96.3% of graphics cards and equal to that of 0.1% of graphics cards.
Power consumption while under peak load
53 W
Market range: <100 W – >400 W
This graphics card draws 53 W under peak load, which is lower than 97% of graphics cards and equal to 0.1% of graphics cards.
Recommended PSU wattage
500 W
Market range: <450 W – >850 W
This graphics card recommends a 500 W PSU, which is lower than that of 75.6% of graphics cards and equal to that of 8.9% of graphics cards.
Board power limit
53 W
Market range: <100 W – >400 W
This graphics card has a board power limit of 53 W, which is lower than that of 96.9% of graphics cards and equal to that of 0.1% of graphics cards.
PCIe power spec
53 W
Show more
Size
196x 128.5x 40.5 mm
This graphics card measures 196x128.5x 40.5 mm, which is more compact than 91.5% of graphics cards.
Length
196 mm
Market range: <200 mm – >350 mm
This graphics card is 196 mm long, which is shorter than 91.5% of graphics cards and equal in length to 0.2% of graphics cards.
Height
128.5 mm
Market range: <109 mm – >146 mm
This graphics card is 128.5 mm tall, which is taller than 57% of graphics cards and equal in height to 0.1% of graphics cards.
Slot width
2 slot/s
Market range: <2 slot/s – >3.25 slot/s
This graphics card occupies 2 slot/s, which is slimmer than 53.4% of graphics cards and equal in width to 42.5% of graphics cards.
Weight
196 g
Market range: <500 g – >2k g
This graphics card weighs 196 g, which is lighter than 99.2% of graphics cards.
Show more

ASUS Phoenix Radeon RX 6400 vs the average graphics card

246810TotalPerformanceMemoryPlatform & FeaturesConnectivity & MediaPower & CoolingDesign
  • 75.3% lower TDP
    This graphics card has a lower TDP than the average graphics card (53 W vs 215 W). The average graphics card has a TDP of 215 W.
    53 W vs 215 W
  • 89 mm shorter card length
    This graphics card is shorter than the average graphics card (196 mm vs 285 mm). The average graphics card has a length of 285 mm.
    196 mm vs 285 mm
  • 23.1% lower PSU requirement
    This graphics card has a lower PSU requirement than the average graphics card (500 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
    500 W vs 650 W
  • 76.4% lower board power limit
    This graphics card has a lower board power limit than the average graphics card (53 W vs 225 W). The average graphics card has a board power limit of 225 W.
    53 W vs 225 W
  • 0.5 slot/s slimmer design
    This graphics card occupies fewer slots than the average graphics card (2 slot/s vs 2.5 slot/s). The average graphics card occupies 2.5 slot/s.
    2 slot/s vs 2.5 slot/s
  • 14.3% faster VRAM clock
    This graphics card has a higher VRAM clock than the average graphics card (2000 MHz vs 1750 MHz). The average graphics card runs its VRAM at 1750 MHz.
    2,000 MHz vs 1,750 MHz
  • More compact card size
    This graphics card is more compact than the average graphics card (196x128.5 x 40.5 mm vs 285x127 x 52 mm). The average graphics card has a size of 285x127 x 52 mm.
    196x128.5 x 40.5 mm vs 285x127 x 52 mm
  • 3.53x cheaper
    ASUS Phoenix Radeon RX 6400 is cheaper than the average graphics card (£150 vs £530).
    £150 vs £530
  • 3.53x cheaper
    ASUS Phoenix Radeon RX 6400 is cheaper than the average graphics card (£150 vs £530).
    £150 vs £530
  • 5.3% higher user score
    User score
    8.4/ 10
    ✕
    What it is
    A rating that combines user reviews and the total number of reviews received by the graphics card.
    When it matters
    When you want to understand how a graphics card performs in real use and how reliable it is in terms of performance, temperatures, noise, stability, and long-term ownership.
    Score distribution
    â–¼
    â–¼
    <55-66-77-88-99-10
    ASUS Phoenix Radeon RX 6400
    the average graphics card
    ASUS Phoenix Radeon RX 6400 has a higher user score than the average graphics card (8.42 vs 8.000).
    8.42 vs 8
  • Better FP64 ratio
    This graphics card has a better FP64 ratio than the average graphics card (1:16 vs 1:64).
    1:16 vs 1:64
  • 14.3% faster VRAM clock
    This graphics card has a higher VRAM clock than the average graphics card (2000 MHz vs 1750 MHz). The average graphics card runs its VRAM at 1750 MHz.
    2,000 MHz vs 1,750 MHz
  • Supports multi-GPU linking
    This graphics card supports multi-GPU linking, the average graphics card does not.
  • 63.7% smaller GPU die
    This graphics card has a lower GPU die size than the average graphics card (107 mm² vs 295 mm²). The average graphics card has a GPU die size of 295 mm².
    107 mm² vs 295 mm²
  • 75.3% lower TDP
    This graphics card has a lower TDP than the average graphics card (53 W vs 215 W). The average graphics card has a TDP of 215 W.
    53 W vs 215 W
  • 23.1% lower PSU requirement
    This graphics card has a lower PSU requirement than the average graphics card (500 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
    500 W vs 650 W
  • 76.4% lower board power limit
    This graphics card has a lower board power limit than the average graphics card (53 W vs 225 W). The average graphics card has a board power limit of 225 W.
    53 W vs 225 W
  • 83.3% lower idle power draw
    This graphics card has a lower idle power draw than the average graphics card (2 W vs 12 W). The average graphics card has an idle power draw of 12 W.
    2 W vs 12 W
  • 75.9% lower peak power draw
    This graphics card has a lower peak power draw than the average graphics card (53 W vs 220 W). The average graphics card has a peak power draw of 220 W.
    53 W vs 220 W
  • 89 mm shorter card length
    This graphics card is shorter than the average graphics card (196 mm vs 285 mm). The average graphics card has a length of 285 mm.
    196 mm vs 285 mm
  • 0.5 slot/s slimmer design
    This graphics card occupies fewer slots than the average graphics card (2 slot/s vs 2.5 slot/s). The average graphics card occupies 2.5 slot/s.
    2 slot/s vs 2.5 slot/s
  • More compact card size
    This graphics card is more compact than the average graphics card (196x128.5 x 40.5 mm vs 285x127 x 52 mm). The average graphics card has a size of 285x127 x 52 mm.
    196x128.5 x 40.5 mm vs 285x127 x 52 mm
  • 80.8% lighter card weight
    This graphics card is lighter than the average graphics card (196 g vs 1021 g). The average graphics card weighs 1021 g.
    196 g vs 1,021 g
  • 192 bit narrower memory bus
    This graphics card has a narrower memory bus than the average graphics card (64 bit vs 256 bit). The average graphics card has a memory bus width of 256 bit.
    64 bit vs 256 bit
  • 8 GB less VRAM
    This graphics card has fewer VRAM than the average graphics card (4 GB vs 12 GB). The average graphics card has 12 GB VRAM.
    4 GB vs 12 GB
  • 28 fewer compute units
    This graphics card has fewer compute units than the average graphics card (12 vs 40). The average graphics card has 40 compute units.
    12 vs 40
  • 2 fewer fans
    This graphics card has fewer fans than the average graphics card (1 vs 3).
    1 vs 3
  • No CUDA support
    This graphics card does not support CUDA, the average graphics card does.
  • 136 fewer TMUs
    This graphics card has fewer TMUs than the average graphics card (48 vs 184). The average graphics card has 184 TMUs.
    48 vs 184
  • 28 fewer ray tracing cores
    This graphics card has fewer ray tracing cores than the average graphics card (12 vs 40). The average graphics card has 40 ray tracing cores.
    12 vs 40
  • 71.4% lower memory bandwidth
    This graphics card has a lower memory bandwidth than the average graphics card (128 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
    128 GB/s vs 448 GB/s
  • 11% worse value for money
    ASUS Phoenix Radeon RX 6400 has worse value for money than the average graphics card (6.48 vs 7.2).
    6.48 vs 7.2
  • 28 fewer compute units
    This graphics card has fewer compute units than the average graphics card (12 vs 40). The average graphics card has 40 compute units.
    12 vs 40
  • No CUDA support
    This graphics card does not support CUDA, the average graphics card does.
  • 136 fewer TMUs
    This graphics card has fewer TMUs than the average graphics card (48 vs 184). The average graphics card has 184 TMUs.
    48 vs 184
  • 28 fewer ray tracing cores
    This graphics card has fewer ray tracing cores than the average graphics card (12 vs 40). The average graphics card has 40 ray tracing cores.
    12 vs 40
  • 70.8% lower texture rate
    This graphics card has a lower texture rate than the average graphics card (111.4 GTexel/s vs 381.2 GTexel/s). The average graphics card has a texture rate of 381.2 GTexel/s.
    111.4 GTexel/s vs 381.2 GTexel/s
  • 144 fewer AI cores
    This graphics card has fewer AI cores than the average graphics card (0 vs 144). The average graphics card has 144 AI cores.
    0 vs 144
  • 54.5% lower pixel rate
    This graphics card has a lower pixel rate than the average graphics card (74.3 GPixel/s vs 163.2 GPixel/s). The average graphics card has a pixel rate of 163.2 GPixel/s.
    74.27 GPixel/s vs 163.2 GPixel/s
  • 32 fewer ROPs
    This graphics card has fewer ROPs than the average graphics card (32 vs 64). The average graphics card has 64 ROPs.
    32 vs 64
  • 84.2% lower FP32 performance
    This graphics card has a lower FP32 performance than the average graphics card (3.6 TFLOPS vs 22.57 TFLOPS). The average graphics card has FP32 performance of 22.57 TFLOPS.
    3.57 TFLOPS vs 22.57 TFLOPS
  • 7.3% lower boost clock speed
    This graphics card has a lower boost GPU clock than the average graphics card (2321 MHz vs 2505 MHz). The average graphics card has a boost GPU clock of 2505 MHz.
    2,321 MHz vs 2,505 MHz
  • 73.6% lower gaming score
    This graphics card has a lower gaming score than the average graphics card (3876 points vs 14678.5 points). The average graphics card has a gaming score of 14678.5 points.
    3,876 points vs 14,678.5 points
  • 46.2% lower PassMark score
    This graphics card has a lower PassMark score than the average graphics card (12179 points vs 22653 points). The average graphics card has a PassMark score of 22653 points.
    12,179 points vs 22,653 points
  • 64% lower ray tracing score
    This graphics card has a lower ray tracing score than the average graphics card (3300 points vs 9166 points). The average graphics card has a ray tracing score of 9166 points.
    3,300 points vs 9,166 points
  • 76.8% lower compute score
    This graphics card has a lower compute score than the average graphics card (2803 points vs 12074 points). The average graphics card has a compute score of 12074 points.
    2,803 points vs 12,074 points
  • 76% lower FP16 performance
    This graphics card has a lower FP16 performance than the average graphics card (7.1 TFLOPS vs 29.7 TFLOPS). The average graphics card has FP16 performance of 29.725 TFLOPS.
    7.13 TFLOPS vs 29.725 TFLOPS
  • 3,584 fewer FP32 units
    This graphics card has fewer FP32 units than the average graphics card (768 vs 4,352). The average graphics card has 4,352 FP32 units.
    768 vs 4,352
  • 84.5% lower compute throughput
    This graphics card has a lower compute throughput than the average graphics card (3.6 TFLOPS vs 22.98 TFLOPS). The average graphics card has compute throughput of 22.98 TFLOPS.
    3.56 TFLOPS vs 22.98 TFLOPS
  • 54.2% lower FP64 performance
    This graphics card has a lower FP64 performance than the average graphics card (0.2 TFLOPS vs 0.48 TFLOPS). The average graphics card has FP64 performance of 0.48 TFLOPS.
    0.22 TFLOPS vs 0.48 TFLOPS
  • 192 bit narrower memory bus
    This graphics card has a narrower memory bus than the average graphics card (64 bit vs 256 bit). The average graphics card has a memory bus width of 256 bit.
    64 bit vs 256 bit
  • 8 GB less VRAM
    This graphics card has fewer VRAM than the average graphics card (4 GB vs 12 GB). The average graphics card has 12 GB VRAM.
    4 GB vs 12 GB
  • 71.4% lower memory bandwidth
    This graphics card has a lower memory bandwidth than the average graphics card (128 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
    128 GB/s vs 448 GB/s
  • 15.8% slower memory speed
    This graphics card has a lower effective memory speed than the average graphics card (16000 MHz vs 19000 MHz). The average graphics card reaches an effective memory speed of 19000 MHz.
    16,000 MHz vs 19,000 MHz
  • No DLSS support
    This graphics card does not support DLSS, the average graphics card does.
  • Fewer PCIe lanes
    This graphics card has fewer PCIe lanes than the average graphics card (x4 vs x16). The average graphics card has x16 PCIe lanes.
    x4 vs x16
  • 20% larger process node
    This graphics card has a higher process node than the average graphics card (6 nm vs 5 nm). The average graphics card uses a process node of 5 nm.
    6 nm vs 5 nm
  • Older Vulkan version
    This graphics card supports an older Vulkan version than the average graphics card (1.3 vs 1.4).
    1.3 vs 1.4
  • No sampler feedback
    This graphics card does not support sampler feedback, the average graphics card does.
  • 1 older
    This graphics card was released earlier than the average graphics card (2022 vs 2023).
    April 2022
    2,022 vs 2,023
  • 76.4% fewer transistors
    This graphics card has fewer transistors than the average graphics card (5400 million vs 22900 million). The average graphics card has 22900 million transistors.
    5,400 million vs 22,900 million
  • 2 fewer DisplayPort outputs
    This graphics card has fewer DisplayPort outputs than the average graphics card (1 vs 3). The average graphics card has 3 DisplayPort outputs.
    1 vs 3
  • No AV1 encoding
    This graphics card does not support AV1 encoding, the average graphics card does.
    No vs yes
  • 2 fewer displays supported
    This graphics card supports fewer displays than the average graphics card (2 vs 4). The average graphics card supports 4 displays.
    2 vs 4
  • No AV1 decoding
    This graphics card does not support AV1 decoding, the average graphics card does.
    No vs yes
  • Not VR ready
    This graphics card is not VR ready, while the average graphics card is.
  • Narrower decode codec support
    This graphics card supports narrower hardware decode codec support than the average graphics card (H.264/H.265/AV1/VP9 vs H.264/H.265/AV1/VP9/MPEG-2/VC-1).
    H.264/H.265/AV1/VP9 vs H.264/H.265/AV1/VP9/MPEG-2/VC-1
  • 2 fewer monitors per output type
    This graphics card supports fewer monitors per output type than the average graphics card (1 vs 3). The average graphics card supports 3 monitors per output type.
    1 vs 3
  • 2 fewer fans
    This graphics card has fewer fans than the average graphics card (1 vs 3).
    1 vs 3
  • No overclocking support
    This graphics card does not support overclocking, the average graphics card does.
  • No dual BIOS
    This graphics card does not include dual BIOS, the average graphics card does.
    No vs yes
  • 15 °C lower thermal ceiling
    This graphics card has a lower thermal ceiling than the average graphics card (110 °C vs 95 °C). The average graphics card has a thermal ceiling of 95 °C.
    110 °C vs 95 °C
  • No backplate
    This graphics card does not include a backplate, the average graphics card does.
    No vs yes
  • No RGB lighting
    This graphics card does not include RGB lighting, the average graphics card does.
  • 3.5 mm higher card profile
    This graphics card is taller than the average graphics card (128.5 mm vs 125 mm). The average graphics card has a height of 125 mm.
    128.5 mm vs 125 mm

Video reviews

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

Third-party reviews

Based on ratings from across the web.
Reviews last updated: June 2026 · How we calculate this

What we like about ASUS Phoenix Radeon RX 6400

  • Ultra-low power consumption (53W TDP) requiring no external power connectors
  • Compact single-slot and low-profile design fits well in small form factor (SFF) builds
  • Extremely quiet operation with idle fan stop technology
  • Great energy efficiency compared to previous generation entry-level cards
  • Sufficient performance for 1080p gaming in eSports titles like Fortnite and older games

What we don't like about ASUS Phoenix Radeon RX 6400

  • Significant performance loss (roughly 10%) when used on older PCIe 3.0 systems due to 4-lane limitation
  • Lacks hardware video encoding (H.264/H.265), making it poor for content creators and streamers
  • Limited 4GB VRAM and 64-bit bus can struggle with demanding modern textures
  • Poor value proposition; often priced too close to significantly faster cards like the RX 6500 XT or RTX 3050
  • Ray tracing performance is virtually unusable in real-world gaming scenarios

Verdict

The ASUS Phoenix Radeon RX 6400 is an entry-level graphics card featuring 768 stream processors, 4GB of GDDR6 memory on a 64-bit interface, and a 16MB Infinity Cache. Built on AMD's RDNA 2 architecture, it achieves a boost clock of up to 2321 MHz and a game clock of 2039 MHz. Its main strengths include its compact single-fan design with Axial-tech blades and dual ball bearings for longevity, as well as a low 53W power draw that requires no external power connectors, making it a reliable plug-and-play upgrade for older or small form factor systems. However, it is limited by its PCIe 4.0 x4 interface, which can cause performance drops on older PCIe 3.0 motherboards, and it lacks hardware-accelerated video encoding support.

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