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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 270X Sapphire Dual-X 4GB OC Edition Radeon HD 7950 Club3D royalKing Edition

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7950 Club3D royalKing Edition are marginally 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 32 more Texture Mapping Units than the R9 270X. As a result, the HD 7950 exhibits a 13.6 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 and the same number of Render Output Units. This results in the R9 270X providing 5.4 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 less than a year after the HD 7950, and so they are likely to have similar driver support for optimizing performance when running the latest games.

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 R9 270X has 1024 MB more video memory than the HD 7950, 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 270X, which means that the memory performance of the HD 7950 is much better than the R9 270X.

The Radeon R9 270X Sapphire Dual-X 4GB OC Edition has 1280 Shader Processing Units and the Radeon HD 7950 Club3D royalKing Edition has 1792. However, the actual shader performance of the R9 270X is 1164 and the actual shader performance of the HD 7950 is 1295. The HD 7950 having 131 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 7950 delivers a significantly 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 and the Radeon HD 7950 Club3D royalKing Edition requires 200 Watts. We would recommend a PSU with at least 500 Watts for the R9 270X. The HD 7950 requires 20 Watts more than the R9 270X to run. The difference is not significant enough for the HD 7950 to have a noticeably larger impact on your yearly electricity bills than the R9 270X.

Can I Run It

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GPU Architecture

Core Speed1020 MHzvs850 MHz
Boost Clock1070 MHzvs-
ArchitectureGCN 1.1 Curacao XTGCN 1.0 Tahiti PRO
OC Potential Poor vs Fair
Driver Support Great vs Good
Release Date08 Oct 2013vs01 Nov 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

Memory4096 MBvs3072 MB
Memory Speed1400 MHzvs1250 MHz
Memory Bus256 Bitvs384 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth179.2GB/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 Performance56%vs62%
Texture Mapping Units80vs112
Texture Rate81.6 GTexel/svs95.2 GTexel/s
Render Output Units32vs32
Pixel Rate32.6 GPixel/svs27.2 GPixel/s

GPU Outputs

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

GPU Power Requirements

Max Power180 Wattsvs200 Watts
Recommended PSU500 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 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"
Radeon HD 7950 Club3D royalKing 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. A new cooling system is also featured which should keep Radeon HD 7950's temperatures low under extreme loading and produce less noise.
The performance boost is around 3% when compared to standard Radeon HD 7950.
Recommended CPUAMD Athlon II X4 651
AMD Athlon II X4 651K
AMD APU A8-3870K Quad-Core
AMD Athlon II X4 650
Intel Core i3-4130 3.4GHz
Intel Core i7-4785T 4-Core 2.2GHz
Intel Xeon E5-2407 v2
Intel Core i5-4570 3.2GHz
Intel Core i5-4670S 3.1GHz
Intel Xeon Processor W3670
Possible GPU Upgrades-Radeon R9 390 Sapphire Nitro w/ Back Plate 8GB Edition
Radeon R9 390 Asus DirectCU III OC Strix Gaming 8GB Edition
Radeon R9 290X PowerColor PCS+ 4GB Edition
Radeon R9 290X Asus ROG Matrix Platinum Edition
Radeon R9 290X Asus DirectCU II OC Edition
GPU Variants--