Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 M390X 4GB GeForce GTX 770M
Hitman 3 177% 242%
Cyberpunk 2077 113% 163%
Assassins Creed: Valhalla 95% 140%
Resident Evil 8 113% 163%
FIFA 21 8% 33%
Grand Theft Auto VI 200% 270%
Call of Duty: Black Ops Cold War 89% 133%
Genshin Impact 113% 163%
Far Cry 6 208% 280%
The Medium 166% 228%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 M390X 4GB are noticeably better than the Nvidia GeForce GTX 770M.

The R9 M390X has a 89 MHz higher core clock speed and the same number of Texture Mapping Units as the GeForce GTX 770M. This results in the R9 M390X providing 7.1 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 M390X has a 89 MHz higher core clock speed and 8 more Render Output Units than the GeForce GTX 770M. This results in the R9 M390X providing 9.3 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 M390X was released over a year more recently than the GeForce GTX 770M, and so the R9 M390X is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GeForce GTX 770M.

The R9 M390X has 1024 MB more video memory than the GeForce GTX 770M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the R9 M390X also has superior memory performance overall.

The R9 M390X has 63.8 GB/sec greater memory bandwidth than the GeForce GTX 770M, which means that the memory performance of the R9 M390X is much better than the GeForce GTX 770M.

The Radeon R9 M390X 4GB has 1280 Shader Processing Units and the GeForce GTX 770M has 960. However, the actual shader performance of the R9 M390X is 1034 and the actual shader performance of the GeForce GTX 770M is 779. The R9 M390X having 255 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 M390X delivers a significantly smoother and more efficient experience when processing graphical data than the GeForce GTX 770M.

The Radeon R9 M390X 4GB requires 100 Watts to run and the GeForce GTX 770M requires 75 Watts. The R9 M390X requires 25 Watts more than the GeForce GTX 770M to run. The difference is not significant enough for the R9 M390X to have a noticeably larger impact on your yearly electricity bills than the GeForce GTX 770M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed900 MHzvs811 MHz
Boost Clock950 MHzvs-
ArchitectureGCN 1.1 Neptune XTKepler GK106-N14E-GS-A1
OC Potential Poor vs Fair
Driver Support Great vs Good
Release Date09 Jun 2015vs30 May 2013
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs green tick
green tick vs
green tick vs
green tick vs
green tick vs

GPU Memory

Memory4096 MBvs3072 MB
Memory Speed1250 MHzvs1002 MHz
Memory Bus256 Bitvs192 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth160GB/secvs96.2GB/sec
L2 Cache 512 KB green tick vs 384 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units1280vs960
Actual Shader Performance50%vs37%
Texture Mapping Units80vs80
Texture Rate72 GTexel/svs64.9 GTexel/s
Render Output Units32vs24
Pixel Rate28.8 GPixel/svs19.5 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections0vs-

GPU Power Requirements

Max Power100 Wattsvs75 Watts
Recommended PSU--

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4810MQ 4-Core 2.8GHzvsIntel Core i7-4700MQ 4-Core 2.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon R9 M390X 4GB is a High-End Mobile Graphics Card based on the Second Generation of the Graphics Core Next Architecture (GCN).

Radeon R9 M390X 4GB Features a GPU Codenamed Neptune XT which is a Second Gen GCN GPU and is identical to the Curacao XT GPU used on the Desktop Radeon R9 270X.
Neptune XT has 20 Compute Units Unlocked and thus offers 1280 Shader Processing Units, 80 TMUs and 32 ROPs.

The Central Unit is Clocked at 900MHz and goes up to 950MHz, in Turbo Mode.

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 1250MHz.

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, because the GPU itself is too weak to work under other circumstances in which 4GB of Memory are needed - such as 4K Gaming, a Large Frame Buffer is mostly a Gimmick.

Power Consumption
With a rated board TDP of 100W, it is suited for very large laptops.

Radeon R9 M390X 4GB is essentially a fast Radeon R9 M290X 4GB.
Performance is Comparable to the desktop Radeon HD 7870.

System Suggestions
Radeon R9 M390X 4GB is best suited for resolutions up to and including 1920x1080. We recommend a Strong Processor and 8GB of RAM for Optimal Performance.
GeForce GTX 770M is a Performance Mobile Graphics Card based on the first revision of the Kepler Architecture.

The Kepler Architecture was NVIDIA's big step to power efficiency. Each Stream Multiprocessor (SMX) now hosts 192 Shader Processing Units - against the 48 of older Fermi Architecture, and has been redesigned being now clocked at the same speed of the Central Unit. This means they are more energy efficient and will consequently lead to cooler operating temperatures. However, it also means they are weaker. It can be said that one Fermi SMX is as fast as 2 Kepler SMXs.
Additionally, and not available in all GPUs, Kepler also introduced the Boost Clock Feature. The Boost Clock is an even higher Clock Speed activated when in gaming mode and becomes the effective speed of the GPU.

It equips a GPU Codenamed Kepler GK106-N14E-GS-A1 which has 5 Stream Multiprocessors activated and thus offers 960 Shader Processing Units, 80 TMUs and 24 ROPs. The Central Unit is clocked at 811MHz.

The GPU accesses a 3GB frame buffer of fast GDDR5, through a 192-bit memory interface. The size of the frame buffer is exaggerated and no way benefits the GPU. The Memory Clock Operates at 1002MHz.

DirectX 11.0 Support (11.0 Hardware Default) and support for SLI, Kepler Boost, Optimus, CUDA, OpenCL, DirectCompute, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies

Power Consumption
With a rated board TDP of 75W, it is suited for large laptops.

GeForce GTX 770M is essentially a fast GeForce GTX 675MX.
Gaming benchmarks indicate its performance is slightly better than the older GeForce GTX 675MX.

System Suggestions
We recommend a Powerful Processor (Intel Core i7 Mobile) and 8GB of RAM for a system with GeForce GTX 770M.
Recommended CPU
Possible GPU Upgrades
GPU Variants