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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7950 Boost Edition Crossfire Radeon R9 270X
Cyberpunk 2077 55% 158%
Horizon: Zero Dawn 13% 88%
Hyper Scape 5% 75%
Call of Duty Warzone 13% 88%
Assassins Creed: Valhalla 55% 158%
Valorant 89% 82%
Grand Theft Auto VI 72% 187%
Doom Eternal 15% 91%
Death Stranding 19% 98%
Mount and Blade 2: Bannerlord 8% 81%

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.

The Radeon R9 270X has a 150 MHz higher core clock speed than the HD 7950, but the HD 7950 has 144 more Texture Mapping Units than the Radeon R9 270X. As a result, the HD 7950 exhibits a 110.4 GTexel/s better Texture Fill Rate than the Radeon 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 Radeon R9 270X has a 150 MHz higher core clock speed than the HD 7950, but the HD 7950 has 32 more Render Output Units than the Radeon R9 270X. As a result, the HD 7950 exhibits a 22.4 GPixel/s better Pixel Fill Rate than the Radeon R9 270X. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Radeon R9 270X was released over a year more recently than the HD 7950, and so the Radeon 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 4096 MB more video memory than the Radeon 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 Radeon R9 270X, which means that the memory performance of the HD 7950 is massively better than the Radeon R9 270X.

The Radeon HD 7950 Boost Edition Crossfire has 3584 Shader Processing Units and the Radeon R9 270X has 1280. However, the actual shader performance of the HD 7950 is 2818 and the actual shader performance of the Radeon R9 270X is 1142. The HD 7950 having 1676 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 Radeon R9 270X.

The Radeon R9 270X 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 Radeon R9 270X, but we do not have a recommended PSU wattage for the HD 7950.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed850 MHzvs1000 MHz
Boost Clock925 MHzvs1050 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

Resolution Performance

1366x768 - vs green tick
1600x900 - vs green tick
green tick vs
2560x1440 - vs green tick
3840x2160 - vs green tick

GPU Memory

Memory6144 MBvs2048 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%

GPU Display

Shader Processing Units3584vs1280
Actual Shader Performance100%vs55%
Texture Mapping Units224vs80
Texture Rate190.4 GTexel/svs80 GTexel/s
Render Output Units64vs32
Pixel Rate54.4 GPixel/svs32 GPixel/s

GPU Outputs

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

GPU Power Requirements

Max Power-180 Watts
Recommended PSU-500 Watts & 34 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs4.4
Open CL-vs-
Notebook GPUnono

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 is a high-end Graphics Card based on the Curacao XT core of the Graphics Core Next Architecture.
The Curacao XT Core has its roots on the Pitcairn XT Core used on its predecessor - Radeon HD 7870. It offers 1280 Shader Processing Units, 80 TMUs and 32 ROPs, on a 256-bit memory interface.
However and when compared to its predecessor, Radeon R9 270X offers a Boost Clock of 1050MHz, despite its central unit still running at 1000MHz. Furthermore, its operating memory clock is significantly higher and of 1400MHz, leading to extra memory bandwidth.
Benchmarks indicate its performance is almost on level with powerful Radeon HD 7950, though its Boost Edition and famous GeForce GTX 660 Ti still perform considerably better.
Still, Radeon R9 270X has a launching price of just $199 which makes it a very competitive card.
Expect to run most modern demanding games, such as Crysis 3 and Metro Last Light at highest settings while using a 1080p resolution.
Recommended CPU
Possible GPU Upgrades
GPU Variants