Select any two GPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 660M GeForce GTX 670M
Cyberpunk 2077 460% 335%
Assassins Creed: Valhalla 417% 301%
Call of Duty: Black Ops Cold War 475% 347%
Genshin Impact 465% 339%
eFootball PES 2021 185% 121%
Marvel's Avengers 435% 316%
Watch Dogs Legion 445% 323%
FIFA 21 185% 121%
Mafia: Definitive Edition 710% 529%
Microsoft Flight Simulator 400% 288%

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

The GeForce GTX 660M has a 237 MHz higher core clock speed than the GeForce GTX 670M, but the GeForce GTX 670M has 24 more Texture Mapping Units than the GeForce GTX 660M. As a result, the GeForce GTX 670M exhibits a 6.8 GTexel/s better Texture Fill Rate than the GeForce GTX 660M. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GeForce GTX 660M has a 237 MHz higher core clock speed than the GeForce GTX 670M, but the GeForce GTX 670M has 8 more Render Output Units than the GeForce GTX 660M. As a result, the GeForce GTX 670M exhibits a 1 GPixel/s better Pixel Fill Rate than the GeForce GTX 660M. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

Both the GeForce GTX 660M and the GeForce GTX 670M were released at the same time, so are likely to be quite similar.

The GeForce GTX 660M has 512 MB more video memory than the GeForce GTX 670M, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

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

The GeForce GTX 660M has 384 Shader Processing Units and the GeForce GTX 670M has 336. However, the actual shader performance of the GeForce GTX 660M is 365 and the actual shader performance of the GeForce GTX 670M is 402. The GeForce GTX 670M having 37 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce GTX 670M delivers a slightly smoother and more efficient experience when processing graphical data than the GeForce GTX 660M.

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

The GeForce GTX 660M requires 50 Watts to run and the GeForce GTX 670M requires 75 Watts. The GeForce GTX 670M requires 25 Watts more than the GeForce GTX 660M to run. The difference is not significant enough for the GeForce 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 Speed835 MHzvs598 MHz
Boost Clock950 MHzvs-
ArchitectureKepler GK107-N13E-GE-A2Fermi GF114
OC Potential Poor vs Poor
Driver Support Good vs Poor
Release Date22 Mar 2012vs22 Mar 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
7.9
vs green tick
8.6
1600x900
5.9
vs green tick
6.6
1920x1080
4.4
vs green tick
5.1
2560x1440
2.8
vs green tick
3.1
3840x2160
1.8
green tick vs -

GPU Memory

Memory2048 MBvs1536 MB
Memory Speed1000 MHzvs750 MHz
Memory Bus128 Bitvs192 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth64GB/secvs72GB/sec
L2 Cache 256 KB vs green tick 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units384vs336
Actual Shader Performance18%vs19%
Technology28nmvs40nm
Texture Mapping Units32vs56
Texture Rate26.7 GTexel/svs33.5 GTexel/s
Render Output Units16vs24
Pixel Rate13.4 GPixel/svs14.4 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs1
DVI Connections0vs1
HDMI Connections0vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power50 Wattsvs75 Watts
Recommended PSU--

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3360M 2.8GHzvsIntel Core i5-3360M 2.8GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1600x900

Gaming Performance Value

Far Cry 3vs
Performance Value

GPU Mini Review

Mini ReviewOverview
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.
Overview
GeForce GTX 670M is a Performance Mobile Graphics Card based on the second revision of the Fermi Architecture.

Architecture
The Fermi Architecture was first manufactured with a 40nm technology and uses a technique known as Hot Clocking: The Shaders are clocked twice as fast as the Central Unit. While this leads to a reasonable performance boost, it causes enormous amounts of energy dissipation, leading, ultimately, to a significantly higher operating temperature.
Fermi is also the first GPU architecture with fully cached memory access which increases memory performance.

GPU
It equips a GPU Codenamed GF114 which has 7 Stream Multiprocessors activated and thus offers 336 Shader Processing Units, 56 TMUs and 24 ROPs. The Central Unit is clocked at 598MHz.

Memory
The GPU accesses a 1.5GB frame buffer of fast GDDR5, through a 192-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 750MHz.

Features
DirectX 11.0 Support (11.0 Hardware Default) and support for SLI, Optimus, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies

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

Performance
GeForce GTX 670M is essentially a fast GeForce GTX 570M.
Gaming benchmarks put its performance somewhat above a desktop GeForce GTX 550 Ti.

System Suggestions
We recommend a decent processor (Intel Core i5 Mobile) and 8GB of RAM for a system with GeForce GTX 670M.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-