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GALAX GeForce RTX 5080 Star Nox OC Review | 118 Data compared

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  • Avg. price in UK: ~£1,080
  • Avg. price in US: ~$1,000
  • VRAM: 16 GB
  • Memory bus width: 256 bit
  • Thermal Design Power (TDP): 360 W

GALAX GeForce RTX 5080 Star Nox OC review. Compare 118 technical specifications and user reviews to see how it ranks among graphics cards and if it is worth buying.

7.5

Overall score

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 components:

90.0%

7.5

Technical Score

10.0%

?

User score

Very good
7.5

Technical Score

What it is: An assessment of the graphics card's technical performance, covering key areas such as gaming and rendering performance, ray tracing, memory configuration, power efficiency, cooling, connectivity, features, and build quality.

When it matters: When you want to compare graphics cards based on technical performance and available features.

Score components:

44.0%

7.5

Performance

24.0%

6.5

Memory

12.0%

7.5

Power & Cooling

11.0%

9.7

Platform & Features

5.0%

6.2

Design

4.0%

9.2

Connectivity & Media

Very good
?

User score

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 components:

70.0%

?

User reviews

30.0%

?

Popularity

  • 8.8
    Gaming

    Score components:

    45.0%

    10

    Floating-point performance

    25.0%

    5.2

    VRAM

    20.0%

    10

    Ray tracing cores / units

    10.0%

    10

    PCI Express (PCIe) version

  • 8.6
    Video editing

    Score components:

    35.0%

    10

    AV1 encode

    30.0%

    5.2

    VRAM

    20.0%

    10

    Floating-point performance

    15.0%

    10

    PCI Express (PCIe) version

  • 8.8
    1080p

    Score components:

    55.0%

    10

    Floating-point performance

    25.0%

    5.2

    VRAM

    10.0%

    10

    Ray tracing cores / units

    10.0%

    10

    PCI Express (PCIe) version

  • 8.6
    1440p

    Score components:

    50.0%

    10

    Floating-point performance

    30.0%

    5.2

    VRAM

    15.0%

    10

    Ray tracing cores / units

    5.0%

    10

    PCI Express (PCIe) version

  • 8.3
    4K

    Score components:

    40.0%

    10

    Floating-point performance

    35.0%

    5.2

    VRAM

    20.0%

    10

    Ray tracing cores / units

    5.0%

    10

    PCI Express (PCIe) version

  • No image
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Best prices in UK

    N/A~ £1,080

Best rankings

?

Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The GALAX GeForce RTX 5080 Star NOX OC is a high-performance graphics card built on NVIDIA's Blackwell architecture, featuring 10,752 CUDA cores, 84 ray-tracing cores, and a boost clock speed of 2685 MHz. It is equipped with 16GB of advanced GDDR7 memory on a 256-bit bus, delivering an impressive 960 GB/s bandwidth and supporting DLSS 4 for superior AI-driven rendering. Main pros include its substantial factory overclock, a robust triple-slot cooling system measuring 335mm in length, and compatibility with the latest PCIe 5.0 interface for maximum data throughput. Potential cons include a high power requirement with a 360W TDP necessitating at least an 850W PSU, and its large physical footprint which may limit compatibility with smaller PC cases.

Technical Specifications of GALAX GeForce RTX 5080 Star Nox OC

Technical Score

What it is: An assessment of the graphics card's technical performance, covering key areas such as gaming and rendering performance, ray tracing, memory configuration, power efficiency, cooling, connectivity, features, and build quality.

When it matters: When you want to compare graphics cards based on technical performance and available features.

Score components:

44.0%

?

Performance

24.0%

?

Memory

12.0%

?

Power & Cooling

11.0%

?

Platform & Features

5.0%

?

Design

4.0%

?

Connectivity & Media

7.5
GALAX GeForce RTX 5080 Star Nox OC has a technical score of 7.49 points, which is higher than that of 71% of products in this category.
User score

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 components:

70.0%

0.0

User reviews

30.0%

1.0

Popularity

?
Popularity
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.
1.0
GALAX GeForce RTX 5080 Star Nox OC has a popularity of 1 points, which is lower than 55.9% of products in this category.
Ratio quality/price

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 components:

60.0%

7.5

Overall score

40.0%

4.8

Price

6.7
GALAX GeForce RTX 5080 Star Nox OC has a quality-to-price ratio of 6.7 points, which is lower than 52.1% of products in this category.
3DMark Time Spy benchmark score
What it is: Benchmark result from 3DMark Time Spy, a synthetic DirectX 12 test often used as a quick gaming-performance reference.
When it matters: When you need a fast rough performance sort before digging into game-specific reviews and frame-rate data.

Importance: LOW

?
3DMark Port Royal score
What it is: Benchmark result from 3DMark Port Royal, a synthetic test focused on ray tracing performance.
When it matters: When ray tracing matters in the games you actually play and you want one quick way to separate stronger and weaker RT cards.

Importance: LOW

?
PassMark (G3D) result
What it is: Overall GPU performance score in PassMark G3D benchmark
When it matters: When you need one broad score to sort cards into rough performance tiers.

Importance: LOW

?
PassMark (DirectCompute) result
What it is: PassMark score for DirectCompute performance tests
When it matters: When compute workloads matter alongside gaming performance.

Importance: LOW

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Floating-point performance
What it is: Theoretical floating-point compute performance of the GPU.
When it matters: When rendering, AI, or heavy compute work needs strong single-precision throughput.

Importance: LOW

57.74 TFLOPS
GALAX GeForce RTX 5080 Star Nox OC delivers 57.74 TFLOPS floating-point performance, which is higher than that of 90.7% of graphics cards and equal to that of 0.2% of graphics cards.
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VRAM
What it is: Total video memory available on the graphics card
When it matters: When you play at high settings, use texture mods, or work with large creative projects.

Importance: HIGH

16 GB
GALAX GeForce RTX 5080 Star Nox OC has 16 GB of VRAM, which is more than 61.4% of graphics cards and equal to 28.7% of graphics cards.
Memory type
What it is: Type of graphics memory used (GDDR6, HBM2e, etc.)
When it matters: When memory technology is part of the buying decision because it affects bandwidth class, power use, and product positioning.

Importance: LOW

GDDR7
GDDR version
What it is: Generation of GDDR memory used by the graphics card.
When it matters: When you want to separate older memory generations from newer ones before comparing bandwidth, power behavior, and market tier.

Importance: LOW

GDDR7
GALAX GeForce RTX 5080 Star Nox OC uses GDDR7 memory, which is newer than on 78.4% of graphics cards and equal to 21.6% of graphics cards.
Memory bus width
What it is: Width of the memory interface bus in bits
When it matters: When you care about steadier performance at higher resolutions, heavier texture settings, or ray-traced workloads that stress memory traffic.

Importance: HIGH

256 bit
GALAX GeForce RTX 5080 Star Nox OC uses a 256 bit memory bus, which is wider than that of 49.5% of graphics cards and equal to that of 36.1% of graphics cards.
Maximum memory bandwidth
What it is: Maximum data transfer rate between GPU and its memory
When it matters: When 4K gaming, ray tracing, or creator work can choke a slower memory subsystem.

Importance: HIGH

960 GB/s
GALAX GeForce RTX 5080 Star Nox OC reaches 960 GB/s memory bandwidth, which is higher than that of 87.9% of graphics cards and equal to that of 5.8% of graphics cards.
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PCI Express (PCIe) version
What it is: Version of PCI Express interface supported
When it matters: When you are pairing the card with an older motherboard and want to avoid leaving bandwidth or future compatibility on the table.

Importance: LOW

5.0
GALAX GeForce RTX 5080 Star Nox OC supports PCIe 5.0, which is newer than on 74.5% of graphics cards and equal to 25.5% of graphics cards.
PCIe lanes
What it is: Number of PCI Express lanes used for communication
When it matters: When limited lane width could bottleneck the card in some systems.

Importance: LOW

x16
GALAX GeForce RTX 5080 Star Nox OC uses x16 PCIe lanes, which is more than 31.5% of graphics cards and equal to 68.6% of graphics cards.
DirectX version
What it is: Highest supported DirectX API version
When it matters: When you play newer Windows games that depend on the latest graphics features.

Importance: LOW

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Vulkan version
What it is: Highest supported Vulkan API version
When it matters: When modern games, emulators, or creative apps lean on Vulkan support.

Importance: LOW

1.4
GALAX GeForce RTX 5080 Star Nox OC supports Vulkan 1.4, which is more advanced than on 26.6% of graphics cards and equal to 73.4% of graphics cards.
OpenGL version
What it is: Highest supported OpenGL API version
When it matters: When older games or pro apps still depend on OpenGL compatibility.

Importance: LOW

4.6
GALAX GeForce RTX 5080 Star Nox OC supports OpenGL 4.6, which is more advanced than on 4.8% of graphics cards and equal to 95.2% of graphics cards.
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Max displays supported
What it is: Total number of external displays supported simultaneously
When it matters: When you run a multi-monitor desk for sim racing, trading, or editing.

Importance: LOW

4
GALAX GeForce RTX 5080 Star Nox OC supports up to 4 displays, which is more than 7.8% of graphics cards and equal to 89.2% of graphics cards.
Max digital resolution
What it is: Maximum supported digital display resolution
When it matters: When you plan to drive 4K or 8K panels at their native resolution.

Importance: LOW

7680x4320
GALAX GeForce RTX 5080 Star Nox OC supports a maximum digital resolution of 7680x4320, which is higher than that of 44.4% of graphics cards and equal to that of 55.6% of graphics cards.
DisplayPort outputs
What it is: Number of DisplayPort video outputs
When it matters: When your setup needs several high-refresh monitors without adapters.

Importance: LOW

3
GALAX GeForce RTX 5080 Star Nox OC offers 3 DisplayPort outputs, which is more than 20.9% of graphics cards and equal to 77.3% of graphics cards.
DisplayPort version
What it is: Version of DisplayPort standard supported
When it matters: When your monitor setup depends on newer DisplayPort features for higher refresh rates, higher resolution, or better cable flexibility.

Importance: LOW

?
DisplayPort link rates
What it is: Supported data link rates for DisplayPort connections
When it matters: When you are pushing high resolution and refresh rate over DisplayPort.

Importance: LOW

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Thermal Design Power (TDP)
What it is: Typical power consumption under full load (TDP)
When it matters: When you need a realistic idea of power draw before choosing a PSU or case.

Importance: MEDIUM

360 W
GALAX GeForce RTX 5080 Star Nox OC has a TDP of 360 W, which is higher than that of 88.8% of graphics cards and equal to that of 4.3% of graphics cards.
Power consumption while under peak load
What it is: Peak power draw of the graphics card under maximum load.
When it matters: When transient-heavy gaming loads could stress your power supply.

Importance: LOW

360 W
GALAX GeForce RTX 5080 Star Nox OC draws 360 W under peak load, which is higher than 87.2% of graphics cards and equal to 4.2% of graphics cards.
Recommended PSU wattage
What it is: Recommended wattage of the system power supply
When it matters: When you are checking whether your current power supply is enough.

Importance: LOW

850 W
GALAX GeForce RTX 5080 Star Nox OC recommends a 850 W PSU, which is higher than that of 81.6% of graphics cards and equal to that of 13.4% of graphics cards.
Board power limit
What it is: Maximum configurable power limit for the GPU board
When it matters: When you care about how far the card can be pushed through tuning or factory power settings.

Importance: LOW

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PCIe power spec
What it is: PCIe power delivery specification followed
When it matters: When you are checking whether the slot and external cables match the card's intended power-delivery standard.

Importance: LOW

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Size
What it is: Physical size of the GPU card
When it matters: When you need the card to fit a compact case without blocking nearby hardware.

Importance: LOW

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Length
What it is: Physical length of the GPU card
When it matters: When front radiators or drive cages leave only limited GPU clearance.

Importance: LOW

?
Height
What it is: Physical height of the GPU card
When it matters: When side panels, brackets, or tight case layouts reduce vertical clearance.

Importance: LOW

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Slot width
What it is: Number of PCIe slots occupied by the card
When it matters: When you need room for another PCIe card or better airflow under the GPU.

Importance: LOW

3 slot/s
GALAX GeForce RTX 5080 Star Nox OC occupies 3 slot/s, which is wider than 69.8% of graphics cards and equal in width to 16.6% of graphics cards.
Weight
What it is: Total weight of the graphics card
When it matters: When sag, bracket support, or shipping stress matters in your build.

Importance: LOW

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GALAX GeForce RTX 5080 Star Nox OC vs the average graphics card

  • 44 more compute units
    GALAX GeForce RTX 5080 Star Nox OC has more compute units than the average graphics card (84 vs 40). The average graphics card has 40 compute units.
    What it is: Total number of shader multiprocessors or compute units
    When it matters: When you want a better sense of the GPU's overall parallel hardware resources before relying on game benchmarks alone.

    Importance: HIGH

    GALAX GeForce RTX 5080 Star Nox OC has more compute units than the average graphics card (84 vs 40). The average graphics card has 40 compute units.84 vs 40
  • 36 more ray tracing cores
    GALAX GeForce RTX 5080 Star Nox OC has more ray tracing cores than the average graphics card (84 vs 48). The average graphics card has 48 ray tracing cores.
    What it is: Number of dedicated ray tracing processing cores or units
    When it matters: When you care about ray-traced lighting, reflections, and shadows in newer games.

    Importance: HIGH

    GALAX GeForce RTX 5080 Star Nox OC has more ray tracing cores than the average graphics card (84 vs 48). The average graphics card has 48 ray tracing cores.84 vs 48
  • 2.14x higher memory bandwidth
    GALAX GeForce RTX 5080 Star Nox OC has a higher memory bandwidth than the average graphics card (960 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
    What it is: Maximum data transfer rate between GPU and its memory
    When it matters: When 4K gaming, ray tracing, or creator work can choke a slower memory subsystem.

    Importance: HIGH

    GALAX GeForce RTX 5080 Star Nox OC has a higher memory bandwidth than the average graphics card (960 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.960 GB/s vs 448 GB/s
  • 2.39x higher texture rate
    GALAX GeForce RTX 5080 Star Nox OC has a higher texture rate than the average graphics card (902.2 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.
    What it is: Number of textured pixels the GPU can process per second
    When it matters: When fast texture handling matters in high-refresh gaming workloads.

    Importance: HIGH

    GALAX GeForce RTX 5080 Star Nox OC has a higher texture rate than the average graphics card (902.2 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.902.2 GTexel/s vs 376.8 GTexel/s
  • 152 more TMUs
    GALAX GeForce RTX 5080 Star Nox OC has more TMUs than the average graphics card (336 vs 184). The average graphics card has 184 TMUs.
    What it is: Total count of texture mapping units on the GPU
    When it matters: When texture-heavy gaming performance matters and you want extra hardware context behind texture-rate claims.

    Importance: HIGH

    GALAX GeForce RTX 5080 Star Nox OC has more TMUs than the average graphics card (336 vs 184). The average graphics card has 184 TMUs.336 vs 184
  • 48 more ROPs
    GALAX GeForce RTX 5080 Star Nox OC has more ROPs than the average graphics card (112 vs 64). The average graphics card has 64 ROPs.
    What it is: Total number of render output units on the GPU
    When it matters: When you want more context on pixel output capacity, especially for high-resolution play and older raster-heavy engines.

    Importance: HIGH

    GALAX GeForce RTX 5080 Star Nox OC has more ROPs than the average graphics card (112 vs 64). The average graphics card has 64 ROPs.112 vs 64
  • 82% higher pixel rate
    GALAX GeForce RTX 5080 Star Nox OC has a higher pixel rate than the average graphics card (300.7 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.
    What it is: Number of pixels the GPU can render per second
    When it matters: When you play at high resolutions or care about older raster-heavy games.

    Importance: MEDIUM

    GALAX GeForce RTX 5080 Star Nox OC has a higher pixel rate than the average graphics card (300.7 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.300.7 GPixel/s vs 165.2 GPixel/s
  • 144 more AI cores
    GALAX GeForce RTX 5080 Star Nox OC has more AI cores than the average graphics card (336 vs 192). The average graphics card has 192 AI cores.
    What it is: Number of tensor or AI processing cores
    When it matters: When AI features, frame generation, or creator tools use dedicated matrix hardware.

    Importance: MEDIUM

    GALAX GeForce RTX 5080 Star Nox OC has more AI cores than the average graphics card (336 vs 192). The average graphics card has 192 AI cores.336 vs 192
  • 44 more compute units
    GALAX GeForce RTX 5080 Star Nox OC has more compute units than the average graphics card (84 vs 40). The average graphics card has 40 compute units.
  • 36 more ray tracing cores
    GALAX GeForce RTX 5080 Star Nox OC has more ray tracing cores than the average graphics card (84 vs 48). The average graphics card has 48 ray tracing cores.
  • 2.39x higher texture rate
    GALAX GeForce RTX 5080 Star Nox OC has a higher texture rate than the average graphics card (902.2 GTexel/s vs 376.8 GTexel/s). The average graphics card has a texture rate of 376.8 GTexel/s.
  • 152 more TMUs
    GALAX GeForce RTX 5080 Star Nox OC has more TMUs than the average graphics card (336 vs 184). The average graphics card has 184 TMUs.
  • 48 more ROPs
    GALAX GeForce RTX 5080 Star Nox OC has more ROPs than the average graphics card (112 vs 64). The average graphics card has 64 ROPs.
  • 82% higher pixel rate
    GALAX GeForce RTX 5080 Star Nox OC has a higher pixel rate than the average graphics card (300.7 GPixel/s vs 165.2 GPixel/s). The average graphics card has a pixel rate of 165.2 GPixel/s.
  • 144 more AI cores
    GALAX GeForce RTX 5080 Star Nox OC has more AI cores than the average graphics card (336 vs 192). The average graphics card has 192 AI cores.
  • 2.53x higher FP32 performance
    GALAX GeForce RTX 5080 Star Nox OC has a higher FP32 performance than the average graphics card (57.7 TFLOPS vs 22.86 TFLOPS). The average graphics card has FP32 performance of 22.86 TFLOPS.
  • 3.86x higher INT8 performance
    GALAX GeForce RTX 5080 Star Nox OC has a higher INT8 performance than the average graphics card (1,801 TOPS vs 466 TOPS). The average graphics card has INT8 performance of 466 TOPS.
  • 6,400 more FP32 units
    GALAX GeForce RTX 5080 Star Nox OC has more FP32 units than the average graphics card (10,752 vs 4,352). The average graphics card has 4,352 FP32 units.
  • 2.5x higher compute throughput
    GALAX GeForce RTX 5080 Star Nox OC has a higher compute throughput than the average graphics card (57.7 TFLOPS vs 23.105 TFLOPS). The average graphics card has compute throughput of 23.105 TFLOPS.
  • 95.7% higher FP16 performance
    GALAX GeForce RTX 5080 Star Nox OC has a higher FP16 performance than the average graphics card (57.7 TFLOPS vs 29.5 TFLOPS). The average graphics card has FP16 performance of 29.5 TFLOPS.
  • 2.14x higher memory bandwidth
    GALAX GeForce RTX 5080 Star Nox OC has a higher memory bandwidth than the average graphics card (960 GB/s vs 448 GB/s). The average graphics card has a memory bandwidth of 448 GB/s.
  • 4 GB more VRAM
    GALAX GeForce RTX 5080 Star Nox OC has more VRAM than the average graphics card (16 GB vs 12 GB). The average graphics card has 12 GB VRAM.
  • 2x larger L2 cache
    GALAX GeForce RTX 5080 Star Nox OC has more L2 cache than the average graphics card (64 MB vs 32 MB). The average graphics card has 32 MB L2 cache.
  • Newer GDDR version
    GALAX GeForce RTX 5080 Star Nox OC uses a newer GDDR version than the average graphics card (GDDR7 vs GDDR6).
  • Newer PCIe version
    GALAX GeForce RTX 5080 Star Nox OC supports a newer PCIe version than the average graphics card (5 vs 4.0).
  • 2 newer
    GALAX GeForce RTX 5080 Star Nox OC was released more recently than the average graphics card (2,025 vs 2,023).
  • Newer encoder generation
    GALAX GeForce RTX 5080 Star Nox OC uses a newer encoder generation than the average graphics card (9 vs 8). The average graphics card uses encoder generation 8.
  • Newer HDMI version
    GALAX GeForce RTX 5080 Star Nox OC supports a newer HDMI version than the average graphics card (2.1b vs 2.1).
  • Broader encode codec support
    GALAX GeForce RTX 5080 Star Nox OC supports broader hardware encode codec support than the average graphics card (H.264/H.265/AV1/VP9 vs H.264).
  • Includes dual BIOS
    GALAX GeForce RTX 5080 Star Nox OC includes dual BIOS, the average graphics card does not.

Total
Performance
Memory
Platform & Features
Connectivity & Media
Power & Cooling
  • 99.8% slower memory speed
    GALAX GeForce RTX 5080 Star Nox OC has a lower effective memory speed than the average graphics card (30 MHz vs 19,000 MHz). The average graphics card reaches an effective memory speed of 19,000 MHz.
  • 75% lower HDMI bandwidth
    GALAX GeForce RTX 5080 Star Nox OC has a lower HDMI bandwidth than the average graphics card (12 Gbps vs 48 Gbps). The average graphics card has HDMI bandwidth of 48 Gbps.
  • 1 fewer monitors per output type
    GALAX GeForce RTX 5080 Star Nox OC supports fewer monitors per output type than the average graphics card (3 vs 4). The average graphics card supports 4 monitors per output type.
  • 67.4% higher TDP
    GALAX GeForce RTX 5080 Star Nox OC has a higher TDP than the average graphics card (360 W vs 215 W). The average graphics card has a TDP of 215 W.
  • 30.8% higher PSU requirement
    GALAX GeForce RTX 5080 Star Nox OC has a higher PSU requirement than the average graphics card (850 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
  • 63.6% higher peak power draw
    GALAX GeForce RTX 5080 Star Nox OC has a higher peak power draw than the average graphics card (360 W vs 220 W). The average graphics card has a peak power draw of 220 W.
  • 1 slot/s wider design
    GALAX GeForce RTX 5080 Star Nox OC occupies more slots than the average graphics card (3 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.
  • 99.8% slower memory speed
    GALAX GeForce RTX 5080 Star Nox OC has a lower effective memory speed than the average graphics card (30 MHz vs 19,000 MHz). The average graphics card reaches an effective memory speed of 19,000 MHz.
    What it is: Effective memory data rate combining clock and bus width
    When it matters: When you compare how quickly each card can push data through its memory subsystem.

    Importance: MEDIUM

    GALAX GeForce RTX 5080 Star Nox OC has a lower effective memory speed than the average graphics card (30 MHz vs 19,000 MHz). The average graphics card reaches an effective memory speed of 19,000 MHz.30 MHz vs 19000 MHz
  • 67.4% higher TDP
    GALAX GeForce RTX 5080 Star Nox OC has a higher TDP than the average graphics card (360 W vs 215 W). The average graphics card has a TDP of 215 W.
    What it is: Typical power consumption under full load (TDP)
    When it matters: When you need a realistic idea of power draw before choosing a PSU or case.

    Importance: MEDIUM

    GALAX GeForce RTX 5080 Star Nox OC has a higher TDP than the average graphics card (360 W vs 215 W). The average graphics card has a TDP of 215 W.360 W vs 215 W
  • 1 slot/s wider design
    GALAX GeForce RTX 5080 Star Nox OC occupies more slots than the average graphics card (3 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.
    What it is: Number of PCIe slots occupied by the card
    When it matters: When you need room for another PCIe card or better airflow under the GPU.

    Importance: LOW

    GALAX GeForce RTX 5080 Star Nox OC occupies more slots than the average graphics card (3 slot/s vs 2 slot/s). The average graphics card occupies 2 slot/s.3 slot/s vs 2 slot/s
  • 30.8% higher PSU requirement
    GALAX GeForce RTX 5080 Star Nox OC has a higher PSU requirement than the average graphics card (850 W vs 650 W). The average graphics card has a PSU requirement of 650 W.
    What it is: Recommended wattage of the system power supply
    When it matters: When you are checking whether your current power supply is enough.

    Importance: LOW

    GALAX GeForce RTX 5080 Star Nox OC has a higher PSU requirement than the average graphics card (850 W vs 650 W). The average graphics card has a PSU requirement of 650 W.850 W vs 650 W
  • 75% lower HDMI bandwidth
    GALAX GeForce RTX 5080 Star Nox OC has a lower HDMI bandwidth than the average graphics card (12 Gbps vs 48 Gbps). The average graphics card has HDMI bandwidth of 48 Gbps.
    What it is: Maximum HDMI Fixed Rate Link (FRL) bandwidth
    When it matters: When you need enough HDMI bandwidth for high refresh rates at high resolution.

    Importance: LOW

    GALAX GeForce RTX 5080 Star Nox OC has a lower HDMI bandwidth than the average graphics card (12 Gbps vs 48 Gbps). The average graphics card has HDMI bandwidth of 48 Gbps.12 Gbps vs 48 Gbps
  • 2.04x more expensive
    GALAX GeForce RTX 5080 Star Nox OC is more expensive than the average graphics card (£1,080 vs £530).
    GALAX GeForce RTX 5080 Star Nox OC is more expensive than the average graphics card (£1,080 vs £530).£1,080 vs £530
  • 2.3x less popular
    GALAX GeForce RTX 5080 Star Nox OC is less popular than the average graphics card (1.00 vs 2.303).
    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.
    GALAX GeForce RTX 5080 Star Nox OC is less popular than the average graphics card (1.00 vs 2.303).1 vs 2.3
  • 63.6% higher peak power draw
    GALAX GeForce RTX 5080 Star Nox OC has a higher peak power draw than the average graphics card (360 W vs 220 W). The average graphics card has a peak power draw of 220 W.
    What it is: Peak power draw of the graphics card under maximum load.
    When it matters: When transient-heavy gaming loads could stress your power supply.

    Importance: LOW

    GALAX GeForce RTX 5080 Star Nox OC has a higher peak power draw than the average graphics card (360 W vs 220 W). The average graphics card has a peak power draw of 220 W.360 W vs 220 W
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Graphic comparison of GALAX GeForce RTX 5080 Star Nox OC and

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Third-party reviews

What customers like about GALAX GeForce RTX 5080 Star Nox OC?

  • High raw performance in modern 4K titles like Call of Duty: Black Ops 6 and Warzone
  • Strong cooling efficiency, maintaining temperatures below 70°C even under heavy GPU load
  • Impressive factory overclocking with a boost clock of 2685 MHz, providing a noticeable performance edge over reference models
  • Operates quietly during standard use and moderate speeds
  • Support for next-gen features including DLSS 4 and DisplayPort 2.1b

What customers dislike about GALAX GeForce RTX 5080 Star Nox OC?

  • High price tag, often retailing significantly above NVIDIA's MSRP in certain markets
  • Large physical dimensions (335mm length) may require a full-sized ATX case for proper fit
  • Total board power (TDP) of 360W results in high energy consumption and significant heat output
  • Limited VRAM (16GB) compared to enthusiast-tier requirements for future-proof 4K ray tracing or heavy AI workloads
  • Occasional stability and driver issues reported, specifically related to PCIe 5.0 compatibility and browser crashes

Expert reviews

W
wccftech.com
29/01/2025
GALAX GeForce RTX 5080 1-Click OC White - Wccftech TechPowerUp

The GALAX GeForce RTX 5080 1-Click OC White 16 GB is an ultra-enthusiast graphics card built on NVIDIA’s advanced "Blackwell" architecture, which brings notable upgrades including 5th Gen Tensor Cores, 4th Gen Ray Tracing Cores, and high-performance GDDR7 memory. Priced at $999 US—matching the launch price of the previous generation's RTX 4080 SUPER—this specific GALAX custom...Read more

G
guru3d.com
30/01/2025
Review: GALAX GeForce RTX 5080 1-Click OC edition - Guru3D

The Guru3D review concludes that the GALAX GeForce RTX 5080 1-Click OC Edition is a powerful enthusiast-segment graphics card based on NVIDIA's Blackwell architecture, delivering a 1% performance advantage over the standard Founders Edition card. Equipped with 10,752 CUDA cores and 16GB of rapid GDDR7 VRAM on a 256-bit bus, the GPU excels at 1440p and 4K gaming, showing a 25% to 30%...Read more

T
techpowerup.com
29/01/2025
Galax GeForce RTX 5080 1-Click OC Review - TechPowerUp

The TechPowerUp review of the Galax GeForce RTX 5080 1-Click OC highlights the card as a strong $999 alternative to the Founders Edition, utilizing the Blackwell architecture with 16 GB of GDDR7 memory. Key advantages include an improved, quieter cooling system with seven heatpipes and a vapor-chamber baseplate, plus easy overclocking capabilities. However, the card has a higher 350...Read more

Video reviews

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