Select any two GPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 270X Sapphire Toxic 2GB OC Edition Radeon HD 6870 PowerColor X2 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%
Grand Theft Auto VI 168% 156%
Genshin Impact 91% 82%
Horizon: Zero Dawn 80% 73%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 6870 PowerColor X2 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 6870, but the HD 6870 has 32 more Texture Mapping Units than the R9 270X. As a result, the HD 6870 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 6870, but the HD 6870 has 32 more Render Output Units than the R9 270X. As a result, the HD 6870 exhibits a 22.4 GPixel/s better Pixel Fill Rate than the R9 270X. 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 6870, 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 6870.

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 Radeon R9 270X Sapphire Toxic 2GB OC Edition and the Radeon HD 6870 PowerColor X2 Edition have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The HD 6870 has 76.8 GB/sec greater memory bandwidth than the R9 270X, which means that the memory performance of the HD 6870 is much better than the R9 270X.

The Radeon R9 270X Sapphire Toxic 2GB OC Edition has 1280 Shader Processing Units and the Radeon HD 6870 PowerColor X2 Edition has 2240. However, the actual shader performance of the R9 270X is 1251 and the actual shader performance of the HD 6870 is 1310. The HD 6870 having 59 better shader performance and an altogether better performance when taking into account other relevant data means that the HD 6870 delivers a massively smoother and more efficient experience when processing graphical data than the R9 270X.

The R9 270X transistor size technology is 12 nm (nanometers) smaller than the HD 6870. This means that the R9 270X is expected to run slightly cooler and achieve higher clock frequencies than the HD 6870.

The Radeon R9 270X Sapphire Toxic 2GB OC Edition requires 180 Watts to run but there is no entry for the Radeon HD 6870 PowerColor X2 Edition. We would recommend a PSU with at least 500 Watts for the R9 270X and a PSU with at least 600 Watts for the HD 6870. The HD 6870 has been recommended a PSU with 100 Watts more than the R9 270X. The difference is significant enough that the HD 6870 may have an adverse affect on your yearly electricity bills in comparison to the R9 270X.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1100 MHzvs900 MHz
Boost Clock1150 MHzvs-
ArchitectureGCN 1.1 Curacao XTBarts XT
OC Potential Poor vs -
Driver Support Great vs -
Release Date08 Oct 2013vs01 Jul 2011
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - green tick vs green tick -
1600x900
9.6
green tick vs -
1920x1080
7.7
vs green tick
7.9
2560x1440
5.7
green tick vs -
3840x2160
4.1
green tick vs -

GPU Memory

Memory2048 MBvs2048 MB
Memory Speed1500 MHzvs1050 MHz
Memory Bus256 Bitvs512 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth192GB/secvs268.8GB/sec
L2 Cache 512 KB green tick vs 0 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units1280vs2240
Actual Shader Performance60%vs63%
Technology28nmvs40nm
Texture Mapping Units80vs112
Texture Rate88 GTexel/svs100.8 GTexel/s
Render Output Units32vs64
Pixel Rate35.2 GPixel/svs57.6 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power180 Watts-
Recommended PSU500 Wattsvs600 Watts

GPU Features

DirectX12.0vs11
Shader Model5.0vs5.0
Open GL4.4vs4.1
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-4430 3.0GHzvsIntel Core i7-2600K 4-Core 3.40GHz
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 6870 PowerColor X2 Edition is a dual-graphics solution of two Radeon HD 6870.
It offers two Bart XT cores and thus 2240 Shader Processing Units, 112 TMUs and 64 ROPs, on a 512-bit (256-bit per card) memory interface of fast GDDR5. The clock frequencies remained unchanged when compared to the reference card.
Benchmarks indicate its performance is clearly above a single high-end Radeon HD 6970 but a Radeon HD 6990 is still way more powerful.
Recommended CPU
Possible GPU Upgrades
-
GPU Variants
-
-