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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 390X Gigabyte G1 Gaming 8GB Edition Radeon R9 Nano 4GB
Cyberpunk 2077 11% 4%
Assassins Creed: Valhalla 1% 5%
Call of Duty: Black Ops Cold War 2% 8%
FIFA 21 44% 48%
Microsoft Flight Simulator 2% 8%
Watch Dogs Legion 7% 0%
World of Warcraft: Shadowlands 59% 49%
Grand Theft Auto VI 56% 46%
Horizon: Zero Dawn 5% 2%
Genshin Impact 11% 4%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 Nano 4GB are very slightly better than the AMD Radeon R9 390X Gigabyte G1 Gaming 8GB Edition.

The R9 390X has a 60 MHz higher core clock speed than the R9 Nano, but the R9 Nano has 80 more Texture Mapping Units than the R9 390X. As a result, the R9 Nano exhibits a 69.4 GTexel/s better Texture Fill Rate than the R9 390X. 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 60 MHz higher core clock speed than the R9 Nano and the same number of Render Output Units. This results in the R9 390X providing 3.8 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 R9 Nano 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 R9 Nano, 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 Nano has 128 GB/sec greater memory bandwidth than the R9 390X, which means that the memory performance of the R9 Nano is massively better than the R9 390X.

The Radeon R9 390X Gigabyte G1 Gaming 8GB Edition has 2816 Shader Processing Units and the Radeon R9 Nano 4GB has 4096. However, the actual shader performance of the R9 390X is 2537 and the actual shader performance of the R9 Nano is 3482. The R9 Nano having 945 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 Nano delivers a massively smoother and more efficient experience when processing graphical data than the R9 390X.

The Radeon R9 390X Gigabyte G1 Gaming 8GB Edition requires 300 Watts to run and the Radeon R9 Nano 4GB requires 175 Watts. We would recommend a PSU with at least 600 Watts for the R9 390X and a PSU with at least 600 Watts for the R9 Nano. The R9 390X requires 125 Watts more than the R9 Nano 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 R9 Nano.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1060 MHzvs1000 MHz
Boost Clock-vs-
ArchitectureGCN 1.1 Grenada XTGCN 1.2 Fiji XT
OC Potential Poor vs Poor
Driver Support Great vs Great
Release Date18 Jun 2015vs27 Aug 2015
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs green tick
10
1600x900
10
green tick vs green tick
10
1920x1080
10
green tick vs green tick
10
2560x1440
7.7
vs green tick
8
3840x2160
5.9
vs green tick
6.1

GPU Memory

Memory8192 MBvs4096 MB
Memory Speed1500 MHzvs500 MHz
Memory Bus512 Bitvs4096 Bit
Memory TypeGDDR5vsHBM-1
Memory Bandwidth384GB/secvs512GB/sec
L2 Cache 1024 KB vs green tick 2048 KB
Delta Color Compression no vs yes
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units2816vs4096
Actual Shader Performance100%vs100%
Technology28nmvs28nm
Texture Mapping Units176vs256
Texture Rate186.6 GTexel/svs256 GTexel/s
Render Output Units64vs64
Pixel Rate67.8 GPixel/svs64 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs0
HDMI Connections1vs1
DisplayPort Connections-vs3
Comparison

GPU Power Requirements

Max Power300 Wattsvs175 Watts
Recommended PSU600 Watts & 42 Ampsvs600 Watts & 42 Amps

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4790K 4-Core 4.0GHzvsIntel Core i7-4790K 4-Core 4.0GHz
Recommended RAM8 GBvs16 GB
Maximum Recommended Gaming Resolution2560x1600vs3840x2160

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon R9 390X Gigabyte G1 Gaming 8GB Edition is a Special Edition of AMD's High-End Radeon R9 390X, created by Gigabyte.

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

Overclock: Memory Clock
None.

Frame Buffer
Untouched.

Cooling Solution
WINDFORCE 2X Cooling System: The airflow is spilt through the triangle design at the fan edge, and is guided smoothly through the fan by special 3D stripe curve design. At the same time, it effectively enhanced the cooling capacity while reducing air turbulence.

Performance
Benchmarks Indicate no Performance Boost over the Reference Radeon R9 390X 8GB.
Overview
Radeon R9 Nano 4GB is an Enthusiast Graphics Card based on the Third Revision of the Graphics Core Next (GCN) Architecture.

Architecture
The Fiji is a Second Generation GCN GPU. It offers support for HBM-1 Memory, DirectX 12.0, Open GL 4.5 and the acclaimed Delta Compression Algorithm which may decrease bandwidth consumption by up to 30%, in most games.
Fiji XT is the Full Variant of the GPU with 64 Compute Units activated, offering 4096 Shader Processing Units, 256 TMUs and 64 ROPs.

GPU
The Central Unit is clocked at 1000MHz.

Memory: Speed
The GPU is equipped with stacked HBM-1 Memory and accesses the Frame Buffer through a 4096-bit memory interface.

Memory: Frame Buffer
The GPU can fill up a Memory Pool of up to 4GB. Under most circumstances, this only proves useful in certain 3D Games whose Settings Require Large Amounts of Memory.
However, and because the GPU itself is aimed for 4K Gaming, 4GB might be a bottlenecked and Performance could be better, were the Frame Buffer larger.

Power Consumption
With a rated board TDP of 175W, it requires at least a 500W PSU with one available 8-pin connector.

Performance
Because the Central Unit's Speed varies from game to game, performance depends heavily on the game being played.
Overall, expect performance similar to GeForce GTX 980 at 1080p and close to Radeon Fury in 1440p and 3K.

System Suggestions
Radeon R9 Nano 4GB is best suited for resolutions up to and including 3840x2160. We recommend a High-End Processor and 16GB of RAM for Optimal Performance.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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