Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 970MX 3GB GeForce GTX 660M
Red Dead Redemption 2 37% 435%
Cyberpunk 2077 88% 635%
Doom Eternal 18% 360%
Dragon Ball Z Kakarot 15% 230%
Call of Duty: Modern Warfare 37% 435%
Microsoft Flight Simulator 88% 635%
FIFA 20 27% 185%
Grand Theft Auto VI 110% 718%
Star Wars: Jedi - Fallen Order 88% 635%
Need For Speed Heat 37% 435%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 970MX 3GB are massively better than the Nvidia GeForce GTX 660M.

The GTX 970MX has a 89 MHz higher core clock speed and 56 more Texture Mapping Units than the GeForce GTX 660M. This results in the GTX 970MX providing 54.6 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 GTX 970MX has a 89 MHz higher core clock speed and 40 more Render Output Units than the GeForce GTX 660M. This results in the GTX 970MX providing 38.3 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 GTX 970MX was released over three years more recently than the GeForce GTX 660M, and so the GTX 970MX is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GeForce GTX 660M when running the latest games.

The GTX 970MX has 1024 MB more video memory than the GeForce GTX 660M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 970MX also has superior memory performance overall.

The GTX 970MX has 56.3 GB/sec greater memory bandwidth than the GeForce GTX 660M, which means that the memory performance of the GTX 970MX is much better than the GeForce GTX 660M.

The GeForce GTX 970MX 3GB has 1408 Shader Processing Units and the GeForce GTX 660M has 384. However, the actual shader performance of the GTX 970MX is 1973 and the actual shader performance of the GeForce GTX 660M is 365. The GTX 970MX having 1608 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 970MX delivers a massively smoother and more efficient experience when processing graphical data than the GeForce GTX 660M.

The GeForce GTX 970MX 3GB requires 75 Watts to run and the GeForce GTX 660M requires 50 Watts. The GTX 970MX requires 25 Watts more than the GeForce GTX 660M to run. The difference is not significant enough for the GTX 970MX to have a noticeably larger impact on your yearly electricity bills than the GeForce GTX 660M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed924 MHzvs835 MHz
Boost Clock1038 MHzvs950 MHz
ArchitectureMaxwell GM204Kepler GK107-N13E-GE-A2
OC Potential None vs Poor
Driver Support Great vs Good
Release Date01 Jun 2016vs22 Mar 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - vs green tick
7.9
1600x900 - vs green tick
5.9
1920x1080
8.8
green tick vs
4.4
2560x1440 - vs green tick
2.8
3840x2160 - vs green tick
1.8

GPU Memory

Memory3072 MBvs2048 MB
Memory Speed1253 MHzvs1000 MHz
Memory Bus192 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth120.3GB/secvs64GB/sec
L2 Cache 2048 KB green tick vs 256 KB
Delta Color Compression yes vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units1408vs384
Actual Shader Performance95%vs18%
Technology28nmvs28nm
Texture Mapping Units88vs32
Texture Rate81.3 GTexel/svs26.7 GTexel/s
Render Output Units56vs16
Pixel Rate51.7 GPixel/svs13.4 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power75 Wattsvs50 Watts
Recommended PSU--

GPU Features

DirectX12.1vs12.0
Shader Model5.0vs5.0
Open GL4.5vs4.5
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-6700HQ 4-Core 2.6GHzvsIntel Core i5-3360M 2.8GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GTX 970MX 3GB is a High-End Mobile Graphics Card based on the First Revision of the Maxwell architecture.

Architecture
GeForce GTX 970MX 3GB Features a GPU Codenamed GM204-??? which is a Second Gen Maxwell GPU.
It has 11 Stream Multiprocessors activated and offers 1408 Shader Processing Units, 88 TMUs and 56 ROPs.

GPU
The central unit runs at ????MHz and goes up to ????MHz, in Turbo Mode.

Memory: Speed
The GPU is equipped with fast GDDR5 and Accesses the Frame Buffer through a 192-bit Memory Interface. The Memory Clock Operates at 1250MHz.

Memory: Frame Buffer
The GPU can fill up a Memory Pool of up to 3GB.

Power Consumption
With a rated board TDP of 75W, it may only be used on Large Notebooks.

Performance
Product Not Released Yet.

System Suggestions
GeForce GTX 970MX 3GB is best suited for resolutions up to and including 1920x1080. We recommend a High-End Processor and 8GB of RAM for Optimal Performance.
Overview
GeForce GTX 660M is a Fast-Middle-Class Mobile Graphics Card based on the first revision of the Kepler Architecture.

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.

GPU
It equips a GPU Codenamed GK107-N13E-GE-A2 which has 2 Stream Multiprocessors activated and thus offers 384 Shader Processing Units, 32 TMUs and 16 ROPs. The Central Unit is initially clocked at 835MHz and goes up to 950MHz, in Turbo Mode.

Memory
The GPU accesses a 2GB frame buffer of fast GDDR5, through a 128-bit memory interface. The size of the frame buffer is exaggerated and no way benefits the GPU. The Memory Clock Operates at 1000MHz.

Features
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 45W, it is suited for average sized laptops.

Performance
Gaming benchmarks indicate its performance is not too far from the desktop GeForce GTX 650.

System Suggestions
We recommend a decent processor (Intel Core i5 Mobile) and 8GB of RAM for a system with GeForce GTX 660M.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-

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