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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7950 Boost Edition Crossfire Radeon R9 270X Sapphire Dual-X 4GB OC Edition
Cyberpunk 2077 18% 96%
Watch Dogs Legion 15% 91%
Assassins Creed: Valhalla 9% 81%
Call of Duty: Black Ops Cold War 5% 75%
Genshin Impact 19% 98%
FIFA 21 40% 0%
Microsoft Flight Simulator 5% 75%
eFootball PES 2021 40% 0%
Ghostrunner 5% 75%
Horizon: Zero Dawn 13% 88%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7950 Boost Edition Crossfire are significantly better than the AMD Radeon R9 270X Sapphire Dual-X 4GB OC Edition.

The R9 270X has a 170 MHz higher core clock speed than the HD 7950, but the HD 7950 has 144 more Texture Mapping Units than the R9 270X. As a result, the HD 7950 exhibits a 108.8 GTexel/s better Texture Fill Rate than the R9 270X. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The R9 270X has a 170 MHz higher core clock speed than the HD 7950, but the HD 7950 has 32 more Render Output Units than the R9 270X. As a result, the HD 7950 exhibits a 21.8 GPixel/s better Pixel Fill Rate than the R9 270X. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The R9 270X was released over a year more recently than the HD 7950, and so the R9 270X 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 2048 MB more video memory than the R9 270X, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the HD 7950 also has superior memory performance overall.

The HD 7950 has 300.8 GB/sec greater memory bandwidth than the R9 270X, which means that the memory performance of the HD 7950 is massively better than the R9 270X.

The Radeon HD 7950 Boost Edition Crossfire has 3584 Shader Processing Units and the Radeon R9 270X Sapphire Dual-X 4GB OC Edition has 1280. However, the actual shader performance of the HD 7950 is 2818 and the actual shader performance of the R9 270X is 1164. The HD 7950 having 1654 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 7950 delivers a massively smoother and more efficient experience when processing graphical data than the R9 270X.

The Radeon R9 270X Sapphire Dual-X 4GB OC Edition requires 180 Watts to run but there is no entry for the HD 7950. We would recommend a PSU with at least 500 Watts for the R9 270X, but we do not have a recommended PSU wattage for the HD 7950.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed850 MHzvs1020 MHz
Boost Clock925 MHzvs1070 MHz
ArchitectureGCN 1.0 Tahiti PRO2 (x2)GCN 1.1 Curacao XT
OC Potential Fair vs Poor
Driver Support Great vs Great
Release Date01 Aug 2012vs08 Oct 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900 - vs green tick
9.5
1920x1080
9.6
green tick vs
7.6
2560x1440 - vs green tick
5.5
3840x2160 - vs green tick
4

GPU Memory

Memory6144 MBvs4096 MB
Memory Speed1250 MHzvs1400 MHz
Memory Bus768 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth480GB/secvs179.2GB/sec
L2 Cache 1536 KB green tick vs 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units3584vs1280
Actual Shader Performance100%vs56%
Technology28nmvs28nm
Texture Mapping Units224vs80
Texture Rate190.4 GTexel/svs81.6 GTexel/s
Render Output Units64vs32
Pixel Rate54.4 GPixel/svs32.6 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections1vs2
HDMI Connections1vs1
DisplayPort Connections0vs-
Comparison

GPU Power Requirements

Max Power-180 Watts
Recommended PSU-500 Watts

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-3770K 4-Core 3.5GHzvsIntel Core i5-4430 3.0GHz
Recommended RAM12 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1600vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewThe Crossfire setup of Radeon HD 7950 Boost Edition.Radeon R9 270X Sapphire Dual-X 4GB OC Edition is a special edition of the high-end Radeon R9 270X.
This edition comes with a custom cooling system called "Vapor-X", which reduces the card's temperature under load, significantly and comes overclocked out of the box in the central unit that was increased from 1000MHz to 1020MHz, while the Boost clock is now of 1070MHz.
Furthermore, the card has twice as much memory when compared to the reference card. However, this card will not benefit from extra memory and thus such feature ends up being useless.
Expect little or no performance boost over the standard edition and exactly the same performance as "Radeon R9 270X Sapphire Dual-X 2GB OC Edition"
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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