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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 390X Sapphire Nitro w/ Back Plate 8GB Edition Radeon R9 380X
Cyberpunk 2077 44% 101%
Minecraft: Dungeons 11% 55%
Call of Duty Warzone 5% 47%
Grand Theft Auto VI 60% 124%
Assassins Creed: Valhalla 44% 101%
Valorant 90% 86%
Maneater 10% 26%
Phantasy Star Online 2 85% 79%
Doom Eternal 7% 49%
Mount and Blade 2: Bannerlord 1% 41%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 390X Sapphire Nitro w/ Back Plate 8GB Edition are significantly better than the AMD Radeon R9 380X.

The R9 390X has a 90 MHz higher core clock speed and 48 more Texture Mapping Units than the Radeon R9 380X. This results in the R9 390X providing 62.4 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 R9 390X has a 90 MHz higher core clock speed and 32 more Render Output Units than the Radeon R9 380X. This results in the R9 390X providing 36.8 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 R9 380X was released less than a year after the R9 390X, and so they are likely to have similar driver support for optimizing performance when running the latest games.

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 390X has 4096 MB more video memory than the Radeon R9 380X, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the R9 390X also has superior memory performance overall.

The R9 390X has 201.6 GB/sec greater memory bandwidth than the Radeon R9 380X, which means that the memory performance of the R9 390X is massively better than the Radeon R9 380X.

The Radeon R9 390X Sapphire Nitro w/ Back Plate 8GB Edition has 2816 Shader Processing Units and the Radeon R9 380X has 2048. However, the actual shader performance of the R9 390X is 2537 and the actual shader performance of the Radeon R9 380X is 1689. The R9 390X having 848 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 390X delivers a massively smoother and more efficient experience when processing graphical data than the Radeon R9 380X.

The Radeon R9 390X Sapphire Nitro w/ Back Plate 8GB Edition requires 375 Watts to run and the Radeon R9 380X requires 190 Watts. We would recommend a PSU with at least 750 Watts for the R9 390X and a PSU with at least 500 Watts for the Radeon R9 380X. The R9 390X requires 185 Watts more than the Radeon R9 380X to run. The difference is significant enough that the R9 390X may have an adverse affect on your yearly electricity bills in comparison to the Radeon R9 380X.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1060 MHzvs970 MHz
Boost Clock-vs-
ArchitectureGCN 1.1 Grenada XTGCN 1.2 Antigua XT
OC Potential Poor vs Fair
Driver Support Great vs Great
Release Date18 Jun 2015vs19 Nov 2015
GPU LinkGD LinkGD Link

Resolution Performance

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GPU Memory

Memory8192 MBvs4096 MB
Memory Speed1500 MHzvs1425 MHz
Memory Bus512 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth384GB/secvs182.4GB/sec
L2 Cache 1024 KB green tick vs 768 KB
Delta Color Compression no vs yes
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units2816vs2048
Actual Shader Performance100%vs81%
Texture Mapping Units176vs128
Texture Rate186.6 GTexel/svs124.2 GTexel/s
Render Output Units64vs32
Pixel Rate67.8 GPixel/svs31 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections1vs2
HDMI Connections1vs1
DisplayPort Connections3vs0

GPU Power Requirements

Max Power375 Wattsvs190 Watts
Recommended PSU750 Watts & 50 Ampsvs500 Watts & 33 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4790K 4-Core 4.0GHzvsIntel Core i5-4690K 3.5GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1600vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon R9 390X Sapphire Nitro w/ Back Plate 8GB Edition is a Special Edition of AMD's High-End Radeon R9 390X, created by Sapphire.

Overclock: Central Unit
The Central Unit is now of 1060MHz, instead of 1050MHz.

Overclock: Memory Clock

Frame Buffer

Cooling Solution
Tri-X cooler Features dual ball bearings in each of the three fans for higher reliability and enhanced Intelligent Fan Control (IFC-II) which turns off the fans for silent operation under light load.

Benchmarks Indicate no Significant Performance Boost over the Reference Radeon R9 390X 8GB.
Radeon R9 380X 2GB is a Performance Graphics Card based on the Second Revision of the Graphics Core Next (GCN) Architecture.

Radeon R9 380X equips the GPU Codenamed Antigua XT which is a GCN 1.2 GPU and has 32 Compute Units activated, offering 2048 Shader Processing Units, 128 TMUs and 32 ROPs.

The Central Unit is Clocked at 970MHz.

Memory: Speed
The GPU is equipped with fast GDDR5 and Accesses the Frame Buffer through a 256-bit Memory Interface. The Memory Clock Operates at 1425MHz.

Memory: Frame Buffer
The GPU can fill up a Memory Pool of up to 4GB.

Power Consumption
With a rated board TDP of 190W, it requires at least a 500W PSU with two available 6-pin connectors.

Essentially, Radeon R9 380X is a Power Optimized Radeon R9 280X. As of November 2015, Radeon R9 380X has no Direct Competitor because the awaited GeForce GTX 960 Ti is yet to be released.
Benchmarks Indicate Solid Performance at 1440p but Radeon R9 380X is still best suited for 1080p Gaming, as most modern demanding games will run with FPS ranging between 20 and 40 at 1440p.

System Suggestions
Radeon R9 380X is best suited for resolutions up to and including 1920x1080. We Recommend a Performance Processor and 8GB of RAM for Optimal Performance.
Recommended CPU
Possible GPU Upgrades
GPU Variants