Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 270X Sapphire Toxic 2GB OC Edition Radeon HD 7950 Vapor-X OC Edition
Cyberpunk 2077 91% 82%
Assassins Creed: Valhalla 74% 67%
Call of Duty: Black Ops Cold War 69% 61%
FIFA 21 4% 8%
Microsoft Flight Simulator 69% 61%
Watch Dogs Legion 84% 76%
World of Warcraft: Shadowlands 173% 161%
Horizon: Zero Dawn 80% 72%
Grand Theft Auto VI 168% 156%
Genshin Impact 91% 82%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7950 Vapor-X OC Edition are marginally better than the AMD Radeon R9 270X Sapphire Toxic 2GB OC Edition.

The R9 270X has a 200 MHz higher core clock speed than the HD 7950, but the HD 7950 has 32 more Texture Mapping Units than the R9 270X. As a result, the HD 7950 exhibits a 12.8 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 200 MHz higher core clock speed than the HD 7950 and the same number of Render Output Units. This results in the R9 270X providing 6.4 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 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 1024 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 48 GB/sec greater memory bandwidth than the R9 270X, which means that the memory performance of the HD 7950 is noticeably better than the R9 270X.

The Radeon R9 270X Sapphire Toxic 2GB OC Edition has 1280 Shader Processing Units and the Radeon HD 7950 Vapor-X OC Edition has 1792. However, the actual shader performance of the R9 270X is 1251 and the actual shader performance of the HD 7950 is 1371. The HD 7950 having 120 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 7950 delivers a noticeably smoother and more efficient experience when processing graphical data than the R9 270X.

The Radeon R9 270X Sapphire Toxic 2GB OC Edition requires 180 Watts to run but there is no entry for the Radeon HD 7950 Vapor-X OC Edition. We would recommend a PSU with at least 500 Watts for the R9 270X 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 Speed1100 MHzvs900 MHz
Boost Clock1150 MHzvs-
ArchitectureGCN 1.1 Curacao XTGCN 1.0 Tahiti PRO
OC Potential Poor vs Poor
Driver Support Great vs Good
Release Date08 Oct 2013vs01 Aug 2012
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - green tick vs green tick -
vs green tick
vs green tick
vs green tick
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GPU Memory

Memory2048 MBvs3072 MB
Memory Speed1500 MHzvs1250 MHz
Memory Bus256 Bitvs384 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth192GB/secvs240GB/sec
L2 Cache 512 KB vs green tick 768 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units1280vs1792
Actual Shader Performance60%vs66%
Texture Mapping Units80vs112
Texture Rate88 GTexel/svs100.8 GTexel/s
Render Output Units32vs32
Pixel Rate35.2 GPixel/svs28.8 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power180 Watts-
Recommended PSU500 Wattsvs500 Watts

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-4430 3.0GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon R9 270X Sapphire Toxic 2GB OC Edition is a special edition of the high-end Radeon R9 270X.
This edition comes with a custom cooling system called "Tri-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 1100MHz, while the Boost clock is now of 1150MHz. Also, the operating memory clock is now of 1500MHz.
Benchmarks indicate a 5% performance boost over the standard edition and so this card will surpass a Radeon HD 7950.
Radeon HD 7950 Vapor-X OC Edition is a special edition of the Radeon HD 7950. See the standard's version page to know more about it.
The new features include a core-clock raise from 800MHz to 850MHz (900MHz in Turbo Boost) which can be of 950MHz in "lethal mode" (via BIOS). A new cooling system called Vapor-X was installed which should keep Radeon HD 7950's temperatures low under extreme loading.
The performance boost is around 4% and 7% when compared to standard Radeon HD 7950 in normal and lethal modes, respectively.
Recommended CPU
Possible GPU Upgrades
GPU Variants