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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R7 250X Radeon HD 6790 XFX 1GB Edition
Red Dead Redemption 2 312% 312%
Doom Eternal 254% 254%
Cyberpunk 2077 465% 465%
Call of Duty: Modern Warfare 312% 312%
Dragon Ball Z Kakarot 154% 154%
Microsoft Flight Simulator 465% 465%
Star Wars: Jedi - Fallen Order 465% 465%
Grand Theft Auto VI 529% 529%
Need For Speed Heat 312% 312%
Warcraft 3: Reforged 84% 84%

In terms of overall gaming performance, the graphical capabilities of the Radeon R7 250X and the HD 6790 are equal.

The Radeon R7 250X has a 110 MHz higher core clock speed and the same number of Texture Mapping Units as the HD 6790. This results in the Radeon R7 250X providing 4.4 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 Radeon R7 250X has a 110 MHz higher core clock speed than the HD 6790 and the same number of Render Output Units. This results in the Radeon R7 250X providing 1.8 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 Radeon R7 250X was released over a year more recently than the HD 6790, and so the Radeon R7 250X is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 6790.

The Radeon R7 250X has 1024 MB more video memory than the HD 6790, 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 6790 has 62.4 GB/sec greater memory bandwidth than the Radeon R7 250X, which means that the memory performance of the HD 6790 is much better than the Radeon R7 250X.

The Radeon R7 250X has 640 Shader Processing Units and the Radeon HD 6790 XFX 1GB Edition has 800. However, the actual shader performance of the Radeon R7 250X is 517 and the actual shader performance of the HD 6790 is 336. The Radeon R7 250X having 181 better shader performance is not particularly notable, as altogether the HD 6790 performs better when taking into account other relevant data.

The Radeon R7 250X transistor size technology is 12 nm (nanometers) smaller than the HD 6790. This means that the Radeon R7 250X is expected to run slightly cooler and achieve higher clock frequencies than the HD 6790. While they exhibit similar graphical performance, the Radeon R7 250X should consume less power than the HD 6790.

The Radeon R7 250X requires 80 Watts to run but there is no entry for the Radeon HD 6790 XFX 1GB Edition. We would recommend a PSU with at least 450 Watts for the Radeon R7 250X and a PSU with at least 500 Watts for the HD 6790. The HD 6790 has been recommended a PSU with 50 Watts more than the Radeon R7 250X. The difference is significant enough that the HD 6790 may have a slight adverse affect on your yearly electricity bills in comparison to the Radeon R7 250X.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed950 MHzvs840 MHz
Boost Clock-vs-
ArchitectureGCN 1.0 Cape Verde XTTerascale 2 Barts LE
OC Potential Fair vs Fair
Driver Support Good vs Poor
Release Date10 Feb 2014vs01 Apr 2011
GPU LinkGD LinkGD Link

Resolution Performance

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GPU Memory

Memory2048 MBvs1024 MB
Memory Speed1125 MHzvs1050 MHz
Memory Bus128 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth72GB/secvs134.4GB/sec
L2 Cache 512 KB green tick vs green tick 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units640vs800
Actual Shader Performance25%vs16%
Texture Mapping Units40vs40
Texture Rate38 GTexel/svs33.6 GTexel/s
Render Output Units16vs16
Pixel Rate15.2 GPixel/svs13.4 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs0
DVI Connections1vs1
HDMI Connections1vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power80 Watts-
Recommended PSU450 Watts & 20 Ampsvs500 Watts

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs4.3
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-4130 3.4GHzvsIntel Core i5-760 2.8GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon R7 250X is a fast-middle-class Graphics Card based on the Graphics Core Next architecture. It offers the Cape Verde XT GPU.
The Cape Verde XT Core is a GCN 1.1 GPU and was first seen on Radeon HD 7770 and then re-used in the OEM only Radeon HD 8760.
It offers 640 Shader Processing Units, 40 TMUs and 16 ROPs, on a 128-bits memory interface of fast GDDR5.
Radeon R7 250X comes clocked at 950MHz (though there might be some 1GHz versions) and has its operating memory clock set at 1125MHz. The rated TDP board is of 80W and the release price around $99.
This card should come in 1GB and 2GB versions, though both will offer the same performance.
Its performance has proven to be exactly like Radeon HD 7770 GHz Edition (if clocked at 1GHz) and thus this card is not suited for 1080p gaming but it can handle 720p with ease. The 950MHz versions will be around 3% slower.
Radeon HD 6790 XFX 1GB Edition is a special edition of the fast-middle-class Radeon HD 6790.
This edition has no new features - not even a new cooling system.
Therefore, its performance is exactly like the reference card.
Recommended CPU
Possible GPU Upgrades
GPU Variants