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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 285 Sapphire ITX Compact OC 2GB Edition Radeon HD 7950 VTX3D 3GB Boost X-Edition
Cyberpunk 2077 127% 137%
Red Dead Redemption 2 66% 72%
Dragon Ball Z Kakarot 2% 6%
Halo: Reach 47% 45%
Microsoft Flight Simulator 127% 137%
Call of Duty: Modern Warfare 66% 72%
FIFA 20 12% 8%
Doom Eternal 42% 48%
Grand Theft Auto VI 153% 163%
Need For Speed Heat 66% 72%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 285 Sapphire ITX Compact OC 2GB Edition are marginally better than the AMD Radeon HD 7950 VTX3D 3GB Boost X-Edition.

The R9 285 has a 48 MHz higher core clock speed and the same number of Texture Mapping Units as the HD 7950. This results in the R9 285 providing 5.3 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The R9 285 has a 48 MHz higher core clock speed than the HD 7950 and the same number of Render Output Units. This results in the R9 285 providing 1.5 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The R9 285 was released over a year more recently than the HD 7950, and so the R9 285 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 7950.

Both GPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings.

The HD 7950 has 1024 MB more video memory than the R9 285, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

The HD 7950 has 60.8 GB/sec greater memory bandwidth than the R9 285, which means that the memory performance of the HD 7950 is much better than the R9 285.

Both the Radeon R9 285 Sapphire ITX Compact OC 2GB Edition and the Radeon HD 7950 VTX3D 3GB Boost X-Edition have 1792 Shader Processing Units. While the two GPUs have the same number of SPUs, the actual performance delivered by the HD 7950 is 1417 and by the R9 285 is 1417. Knowing that the shader performance of the HD 7950 is superior, it is not necessary to examine the GPUs' respective Texture and Pixel Fill Rates.

The Radeon R9 285 Sapphire ITX Compact OC 2GB Edition requires 190 Watts to run but there is no entry for the Radeon HD 7950 VTX3D 3GB Boost X-Edition. We would recommend a PSU with at least 500 Watts for the R9 285 and a PSU with at least 500 Watts for the HD 7950. The two GPUs have been recommended a PSU with the same amount of wattage. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed928 MHzvs880 MHz
Boost Clock-vs930 MHz
ArchitectureGCN 1.2 Tonga PROGCN 1.0 Tahiti PRO2
OC Potential Fair vs Fair
Driver Support Great vs Great
Release Date02 Sep 2014vs01 Aug 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
10
green tick vs
9.8
1920x1080
8.1
green tick vs
7.9
2560x1440
6
green tick vs
5.9
3840x2160
4.4
green tick vs green tick
4.4

GPU Memory

Memory2048 MBvs3072 MB
Memory Speed1400 MHzvs1250 MHz
Memory Bus256 Bitvs384 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth179.2GB/secvs240GB/sec
L2 Cache 768 KB green tick vs green tick 768 KB
Delta Color Compression yes vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units1792vs1792
Actual Shader Performance68%vs68%
Technology28nmvs28nm
Texture Mapping Units112vs112
Texture Rate103.9 GTexel/svs98.6 GTexel/s
Render Output Units32vs32
Pixel Rate29.7 GPixel/svs28.2 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections1vs1
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power190 Watts-
Recommended PSU500 Watts & 33 Ampsvs500 Watts

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.5vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-4670K 3.4GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon R9 285 Sapphire ITX Compact OC 2GB Edition is a special edition of the high-end Radeon R9 285 2GB.

This edition has been modified for small form factor PC Systems, by featuring a smaller PCB and comes overclocked out of the box. Whereas the Central Unit now runs at 928MHz, instead of 918MHz, the Memory Clock was left untouched.

Benchmarks indicate Radeon R9 285 Sapphire ITX Compact OC 2GB Edition is overall only 1% faster than the reference AMD Radeon R9 285. Therefore, GeForce GTX 670 is still faster.
Radeon HD 7950 VTX3D 3GB Boost X-Edition is a special edition of the high-end Radeon HD 7950 Boost Edition.
This edition comes with a custom cooling solution and overclocking out of the box in the core-clock that was increase by 30MHz to 880MHz. Therefore, the Turbo Boost is now of 930MHz.
Expect a 1.5% performance boost when compared to the reference Radeon HD 7950 Boost Edition.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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