Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 765M SLI GeForce GTX 660M
Halo: Reach 33% 70%
Cyberpunk 2077 188% 635%
Dragon Ball Z Kakarot 29% 230%
Red Dead Redemption 2 110% 435%
Call of Duty: Modern Warfare 110% 435%
Microsoft Flight Simulator 188% 635%
Doom Eternal 80% 360%
Grand Theft Auto VI 221% 718%
FIFA 20 12% 185%
Need For Speed Heat 110% 435%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 765M SLI are massively better than the Nvidia GeForce GTX 660M.

The GeForce GTX 660M has a 38 MHz higher core clock speed than the GTX 765M, but the GTX 765M has 96 more Texture Mapping Units than the GeForce GTX 660M. As a result, the GTX 765M exhibits a 75.3 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 38 MHz higher core clock speed than the GTX 765M, but the GTX 765M has 16 more Render Output Units than the GeForce GTX 660M. As a result, the GTX 765M exhibits a 12.1 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.

The GTX 765M was released over a year more recently than the GeForce GTX 660M, and so the GTX 765M is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GeForce GTX 660M.

The GTX 765M has 2048 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 765M also has superior memory performance overall.

The GTX 765M has 64 GB/sec greater memory bandwidth than the GeForce GTX 660M, which means that the memory performance of the GTX 765M is much better than the GeForce GTX 660M.

The GeForce GTX 765M SLI has 1536 Shader Processing Units and the GeForce GTX 660M has 384. However, the actual shader performance of the GTX 765M is 1326 and the actual shader performance of the GeForce GTX 660M is 365. The GTX 765M having 961 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 765M delivers a massively smoother and more efficient experience when processing graphical data than the GeForce GTX 660M.

The GeForce GTX 765M SLI requires 125 Watts to run and the GeForce GTX 660M requires 50 Watts. The GTX 765M requires 75 Watts more than the GeForce GTX 660M to run. The difference is significant enough that the GTX 765M may have an adverse affect on your yearly electricity bills in comparison to the GeForce GTX 660M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed797 MHzvs835 MHz
Boost Clock863 MHzvs950 MHz
ArchitectureKepler GK106-N14E-GE-B-A1 (x2)Kepler GK107-N13E-GE-A2
OC Potential Fair vs Poor
Driver Support Good vs Good
Release Date30 May 2013vs22 Mar 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs
7.9
1600x900
9.3
green tick vs
5.9
1920x1080
7.1
green tick vs
4.4
2560x1440
5.1
green tick vs
2.8
3840x2160
3.4
green tick vs
1.8

GPU Memory

Memory4096 MBvs2048 MB
Memory Speed1000 MHzvs1000 MHz
Memory Bus256 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth128GB/secvs64GB/sec
L2 Cache 256 KB green tick vs green tick 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units1536vs384
Actual Shader Performance64%vs18%
Technology28nmvs28nm
Texture Mapping Units128vs32
Texture Rate102 GTexel/svs26.7 GTexel/s
Render Output Units32vs16
Pixel Rate25.5 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 Power125 Wattsvs50 Watts
Recommended PSU--

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-3630QM 4-Core 2.4GHzvsIntel 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 765M SLI is a solution of two GeForce GTX 765M put together using NVIDIA's SLI technology.

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 consists of 2 GPUs Codenamed GK106-N14E-GE-B-A1 which, together, offer 1536 Shader Processing Units, 128 TMUs and 32 ROPs. The central unit runs at 797MHz and goes up to 863MHz, in Turbo Mode.

Memory
Each GPU accesses a 2GB frame buffer of fast GDDR5, through a 128-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 1000MHz.

Power Consumption
Power Consumption lies between 100W and 150W.

Performance
Because SLI Relies on Proper Driver Support for Scaling, Performance may vary from game to game.
Overall, GeForce GTX 765M SLI should offer Performance Comparable to a single GeForce GTX 780M at 1920x1080.

System Suggestions
GeForce GTX 765M SLI is best suited for resolutions up to and including 1920x1080.
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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