Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 280X Sapphire Vapor-X 3GB OC Edition Crossfire Radeon R9 270X Crossfire
Cyberpunk 2077 1% 21%
Hitman 3 31% 58%
Assassins Creed: Valhalla 8% 11%
Resident Evil 8 1% 21%
FIFA 21 49% 39%
Grand Theft Auto VI 42% 71%
Call of Duty: Black Ops Cold War 11% 7%
Genshin Impact 1% 21%
The Medium 26% 51%
Far Cry 6 46% 76%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 280X Sapphire Vapor-X 3GB OC Edition Crossfire are noticeably better than the AMD Radeon R9 270X Crossfire.

The R9 270X has a 50 MHz higher core clock speed than the R9 280X, but the R9 280X has 96 more Texture Mapping Units than the R9 270X. As a result, the R9 280X exhibits a 83.2 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 50 MHz higher core clock speed than the R9 280X and the same number of Render Output Units. This results in the R9 270X providing 3.2 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

Both the Radeon R9 280X Sapphire Vapor-X 3GB OC Edition Crossfire and the Radeon R9 270X Crossfire were released at the same time, so are likely to be quite similar.

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 280X has 2048 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 R9 280X also has superior memory performance overall.

The R9 280X has 236.8 GB/sec greater memory bandwidth than the R9 270X, which means that the memory performance of the R9 280X is massively better than the R9 270X.

The Radeon R9 280X Sapphire Vapor-X 3GB OC Edition Crossfire has 4096 Shader Processing Units and the Radeon R9 270X Crossfire has 2560. However, the actual shader performance of the R9 280X is 4383 and the actual shader performance of the R9 270X is 2285. The R9 280X having 2098 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 R9 270X.

The Radeon R9 280X Sapphire Vapor-X 3GB OC Edition Crossfire requires 500 Watts to run and the Radeon R9 270X Crossfire requires 360 Watts. We would recommend a PSU with at least 750 Watts for the R9 270X, but we do not have a recommended PSU wattage for the R9 280X. The R9 280X requires 140 Watts more than the R9 270X to run. The difference is significant enough that the R9 280X may have an adverse affect on your yearly electricity bills in comparison to the R9 270X.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed950 MHzvs1000 MHz
Boost Clock1070 MHzvs1050 MHz
ArchitectureGCN 1.1 Tahiti XTL (x2)GCN 1.1 Curacao XT (x2)
OC Potential Fair vs Poor
Driver Support - vs Great
Release Date08 Oct 2013vs08 Oct 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900 - green tick vs green tick -
1920x1080
10
green tick vs
9.6
2560x1440 - green tick vs green tick -
3840x2160 - green tick vs green tick -

GPU Memory

Memory6144 MBvs4096 MB
Memory Speed1550 MHzvs1400 MHz
Memory Bus768 Bitvs512 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth595.2GB/secvs358.4GB/sec
L2 Cache 1536 KB green tick vs 1024 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units4096vs2560
Actual Shader Performance100%vs100%
Technology28nmvs28nm
Texture Mapping Units256vs160
Texture Rate243.2 GTexel/svs160 GTexel/s
Render Output Units64vs64
Pixel Rate60.8 GPixel/svs64 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power500 Wattsvs360 Watts
Recommended PSU-750 Watts

GPU Features

DirectX11.2vs12.0
Shader Model5.0vs5.0
Open GL4.3vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3570K 3.4GHzvsIntel Core i5-4670K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1440vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewThe Crossfire setup of Radeon R9 280X Sapphire Vapor-X 3GB OC Edition.Radeon R9 270X Crossfire is a solution of two Radeon R9 270X put together using AMD'S Crossfire technology.
Check the page of Radeon R9 270X to know more about its chip.
Crossfire relies a lot on proper driver support and may suffer from micro-stuttering in lower frame rates (below 30). Benchmarks indicate the performance is overall, is up to x% better than a single Radeon R9 270X performing by itself but at times (depending whether or not the 3D game supports crossfire or in the graphics driver) it performed worse than a single Radeon R9 270X. Expect this combination to draw up to 360 Watt though the average power consumption should be slightly lower.
Even the most demanding games will run at the highest settings.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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