Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 670M 3GB GeForce GTX 660M
Red Dead Redemption 2 316% 435%
Cyberpunk 2077 471% 635%
Dragon Ball Z Kakarot 156% 230%
Microsoft Flight Simulator 471% 635%
Call of Duty: Modern Warfare 316% 435%
Doom Eternal 257% 360%
FIFA 20 121% 185%
Grand Theft Auto VI 535% 718%
Need For Speed Heat 316% 435%
Halo: Reach 32% 70%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 670M 3GB are noticeably better than the Nvidia GeForce GTX 660M.

The GeForce GTX 660M was released less than a year after the GTX 670M, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GTX 670M 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 670M also has superior memory performance overall.

The GTX 670M has 8 GB/sec greater memory bandwidth than the GeForce GTX 660M, which means that the memory performance of the GTX 670M is marginally better than the GeForce GTX 660M.

The GeForce GTX 670M 3GB has 336 Shader Processing Units and the GeForce GTX 660M has 384. However, the actual shader performance of the GTX 670M is 402 and the actual shader performance of the GeForce GTX 660M is 365. The GTX 670M having 37 better shader performance is not particularly notable, as altogether the GeForce GTX 660M performs better when taking into account other relevant data.

The GeForce GTX 660M transistor size technology is 12 nm (nanometers) smaller than the GTX 670M. This means that the GeForce GTX 660M is expected to run slightly cooler and achieve higher clock frequencies than the GTX 670M.

The GeForce GTX 670M 3GB requires 75 Watts to run and the GeForce GTX 660M requires 50 Watts. The GTX 670M requires 25 Watts more than the GeForce GTX 660M to run. The difference is not significant enough for the GTX 670M to have a noticeably larger impact on your yearly electricity bills than the GeForce GTX 660M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed598 MHzvs835 MHz
Boost Clock-vs950 MHz
ArchitectureFermi GF114Kepler GK107-N13E-GE-A2
OC Potential Poor vs Poor
Driver Support Poor vs Good
Release Date01 Mar 2012vs22 Mar 2012
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs
green tick vs
green tick vs
green tick vs
3840x2160 - vs green tick

GPU Memory

Memory3072 MBvs2048 MB
Memory Speed750 MHzvs1000 MHz
Memory Bus192 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth72GB/secvs64GB/sec
L2 Cache 512 KB green tick vs 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units336vs384
Actual Shader Performance19%vs18%
Texture Mapping Units-vs32
Texture Rate-vs26.7 GTexel/s
Render Output Units-vs16
Pixel Rate-vs13.4 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power75 Wattsvs50 Watts
Recommended PSU--

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-3610QM 4-Core 2.3GHzvsIntel Core i5-3360M 2.8GHz
Recommended RAM6 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 670M 3GB is a high-end mobile GPU still based on the 2010 Fermi architecture.
It's based on the Fermi GF114 Core which offers 336 Shader Processing Units, 56 TMUs and 24 ROPs on a 192-bit memory interface of 3GB GDDR5 (which is a gimmick since this GPU does not benefit from a 2GB frame buffer, let alone 3GB). The central clock runs at 598MHz and the memory clock operates at 750MHz. Expect a power consumption of up to 75 Watts.
It's essentially a tweaked GeForce GTX 570M with a slightly higher clocked central unit that consumes the same power and so expect modern demanding games to be playable at 1080p with fluent frame rates (30+).
GeForce GTX 660M is a Fast-Middle-Class 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 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.

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.

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.

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
GPU Variants