Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 390 XFX Double Dissipation 8GB Edition Radeon R9 270X Sapphire Toxic 2GB OC Edition
Cyberpunk 2077 15% 91%
Assassins Creed: Valhalla 5% 74%
Call of Duty: Black Ops Cold War 2% 69%
Microsoft Flight Simulator 2% 69%
FIFA 21 42% 4%
Immortals: Fenyx Rising 6% 55%
Genshin Impact 15% 91%
Grand Theft Auto VI 62% 168%
World of Warcraft: Shadowlands 65% 173%
Watch Dogs Legion 11% 84%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 390 XFX Double Dissipation 8GB Edition are significantly better than the AMD Radeon R9 270X Sapphire Toxic 2GB OC Edition.

The R9 270X has a 100 MHz higher core clock speed than the R9 390, but the R9 390 has 80 more Texture Mapping Units than the R9 270X. As a result, the R9 390 exhibits a 72 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 100 MHz higher core clock speed than the R9 390, but the R9 390 has 32 more Render Output Units than the R9 270X. As a result, the R9 390 exhibits a 28.8 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 390 was released over a year more recently than the R9 270X, and so the R9 390 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the R9 270X.

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 390 has 6144 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 390 also has superior memory performance overall.

The R9 390 has 192 GB/sec greater memory bandwidth than the R9 270X, which means that the memory performance of the R9 390 is massively better than the R9 270X.

The Radeon R9 390 XFX Double Dissipation 8GB Edition has 2560 Shader Processing Units and the Radeon R9 270X Sapphire Toxic 2GB OC Edition has 1280. However, the actual shader performance of the R9 390 is 2176 and the actual shader performance of the R9 270X is 1251. The R9 390 having 925 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 390 delivers a massively smoother and more efficient experience when processing graphical data than the R9 270X.

The Radeon R9 390 XFX Double Dissipation 8GB Edition requires 275 Watts to run and the Radeon R9 270X Sapphire Toxic 2GB OC Edition requires 180 Watts. We would recommend a PSU with at least 600 Watts for the R9 390 and a PSU with at least 500 Watts for the R9 270X. The R9 390 requires 95 Watts more than the R9 270X to run. The difference is significant enough that the R9 390 may have an adverse affect on your yearly electricity bills in comparison to the R9 270X.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1000 MHzvs1100 MHz
Boost Clock-vs1150 MHz
ArchitectureGCN 1.1 Grenada PROGCN 1.1 Curacao XT
OC Potential Poor vs Poor
Driver Support Great vs Great
Release Date18 Jun 2015vs08 Oct 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs -
1600x900
10
green tick vs
9.6
1920x1080
9.8
green tick vs
7.7
2560x1440
7.5
green tick vs
5.7
3840x2160
5.7
green tick vs
4.1

GPU Memory

Memory8192 MBvs2048 MB
Memory Speed1500 MHzvs1500 MHz
Memory Bus512 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth384GB/secvs192GB/sec
L2 Cache 1024 KB green tick vs 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units2560vs1280
Actual Shader Performance100%vs60%
Technology28nmvs28nm
Texture Mapping Units160vs80
Texture Rate160 GTexel/svs88 GTexel/s
Render Output Units64vs32
Pixel Rate64 GPixel/svs35.2 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power275 Wattsvs180 Watts
Recommended PSU600 Watts & 42 Ampsvs500 Watts

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.4vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4790K 4-Core 4.0GHzvsIntel Core i5-4430 3.0GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1440vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon R9 390 XFX Double Dissipation 8GB Edition is a Special Edition of AMD's High-End Radeon R9 390, created by XFX.

Overclock: Central Unit
None.

Overclock: Memory Clock
None.

Frame Buffer
Untouched.


Cooling Solution
XFX Ghost Thermal 3.0 Technology: New Improved design, all new optimized fin arrays and lengthened electro plated heatpipes for unprecedented efficiency and performance. Play at your hearts content for hours on end with the comfort of knowing that your card is running cool and efficient.

Performance
Benchmarks Indicate no Performance Boost over the Reference Radeon R9 390.
Radeon 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.
Recommended CPU
Possible GPU Upgrades
-
-
GPU Variants
-
-