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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 280X Sapphire Dual-X 3GB OC Edition Radeon HD 7850 XFX Ultra OC Edition
Cyberpunk 2077 53% 154%
Hitman 3 99% 231%
Assassins Creed: Valhalla 40% 133%
Call of Duty: Black Ops Cold War 36% 125%
FIFA 21 23% 28%
Grand Theft Auto VI 116% 258%
Far Cry 6 122% 268%
Genshin Impact 53% 154%
Battlefield 6 99% 231%
Resident Evil 8 53% 154%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 280X Sapphire Dual-X 3GB OC Edition are significantly better than the AMD Radeon HD 7850 XFX Ultra OC Edition.

The HD 7850 has a 105 MHz higher core clock speed than the R9 280X, but the R9 280X has 64 more Texture Mapping Units than the HD 7850. As a result, the R9 280X exhibits a 49 GTexel/s better Texture Fill Rate than the HD 7850. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD 7850 has a 105 MHz higher core clock speed than the R9 280X and the same number of Render Output Units. This results in the HD 7850 providing 3.4 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 280X was released over a year more recently than the HD 7850, and so the R9 280X is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 7850.

The R9 280X has 2048 MB more video memory than the HD 7850, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the R9 280X also has superior memory performance overall.

The R9 280X has 134.4 GB/sec greater memory bandwidth than the HD 7850, which means that the memory performance of the R9 280X is massively better than the HD 7850.

The Radeon R9 280X Sapphire Dual-X 3GB OC Edition has 2048 Shader Processing Units and the Radeon HD 7850 XFX Ultra OC Edition has 1024. However, the actual shader performance of the R9 280X is 1776 and the actual shader performance of the HD 7850 is 849. The R9 280X having 927 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 280X delivers a massively smoother and more efficient experience when processing graphical data than the HD 7850.

The Radeon R9 280X Sapphire Dual-X 3GB OC Edition requires 250 Watts to run but there is no entry for the Radeon HD 7850 XFX Ultra OC Edition. We would recommend a PSU with at least 500 Watts for the HD 7850, but we do not have a recommended PSU wattage for the R9 280X.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed870 MHzvs975 MHz
Boost Clock1020 MHzvs-
ArchitectureGCN 1.0 Tahiti XTLGCN 1.0 Pitcairn PRO
OC Potential Fair vs Fair
Driver Support Great vs Good
Release Date08 Oct 2013vs01 Jun 2012
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - green tick vs green tick -
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GPU Memory

Memory3072 MBvs1024 MB
Memory Speed1500 MHzvs1200 MHz
Memory Bus384 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth288GB/secvs153.6GB/sec
L2 Cache 768 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 Units2048vs1024
Actual Shader Performance85%vs41%
Texture Mapping Units128vs64
Texture Rate111.4 GTexel/svs62.4 GTexel/s
Render Output Units32vs32
Pixel Rate27.8 GPixel/svs31.2 GPixel/s

GPU Outputs

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

GPU Power Requirements

Max Power250 Watts-
Recommended PSU-500 Watts

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3570K 3.4GHzvsIntel Core i5-3330 3.0GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon R9 280X Sapphire Dual-X 3GB OC Edition is a special edition of the high-end Radeon R9 280X.
This edition comes with a custom cooling system called "Dual-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 850MHz to 870MHz, while the Boost clock is now of 1020MHz.
Benchmarks indicate a very slightly 1% performance boost over the standard edition and so a GeForce GTX 770 is still more powerful.
Radeon HD 7850 XFX Ultra OC Edition is a special edition of the powerful Radeon HD 7850. See the standard version for more information about it.
The differences include an increase on the core-clock that went from 860MHz to 975MHz.
Benchmarks indicate a 7% boost when compared to the standard edition.
Recommended CPU
Possible GPU Upgrades
GPU Variants