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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 770M SLI GeForce GTX 660M
Red Dead Redemption 2 55% 435%
Cyberpunk 2077 113% 635%
Doom Eternal 33% 360%
Call of Duty: Modern Warfare 55% 435%
Dragon Ball Z Kakarot 4% 230%
Halo: Reach 51% 70%
Microsoft Flight Simulator 113% 635%
Star Wars: Jedi - Fallen Order 113% 635%
Grand Theft Auto VI 137% 718%
Need For Speed Heat 55% 435%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 770M SLI are massively better than the Nvidia GeForce GTX 660M.

The GeForce GTX 660M has a 24 MHz higher core clock speed than the GTX 770M, but the GTX 770M has 128 more Texture Mapping Units than the GeForce GTX 660M. As a result, the GTX 770M exhibits a 103.1 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 24 MHz higher core clock speed than the GTX 770M, but the GTX 770M has 32 more Render Output Units than the GeForce GTX 660M. As a result, the GTX 770M exhibits a 25.5 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 770M was released over a year more recently than the GeForce GTX 660M, and so the GTX 770M 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 770M 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 770M also has superior memory performance overall.

The GTX 770M has 128 GB/sec greater memory bandwidth than the GeForce GTX 660M, which means that the memory performance of the GTX 770M is massively better than the GeForce GTX 660M.

The GeForce GTX 770M SLI has 1920 Shader Processing Units and the GeForce GTX 660M has 384. However, the actual shader performance of the GTX 770M is 1557 and the actual shader performance of the GeForce GTX 660M is 365. The GTX 770M having 1192 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 770M delivers a massively smoother and more efficient experience when processing graphical data than the GeForce GTX 660M.

The GeForce GTX 770M SLI requires 150 Watts to run and the GeForce GTX 660M requires 50 Watts. The GTX 770M requires 100 Watts more than the GeForce GTX 660M to run. The difference is significant enough that the GTX 770M 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 Speed811 MHzvs835 MHz
Boost Clock-vs950 MHz
ArchitectureKepler GK106 (x2)Kepler GK107-N13E-GE-A2
OC Potential Fair vs Poor
Driver Support - vs Good
Release Date30 May 2013vs22 Mar 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - vs green tick
7.9
1600x900
10
green tick vs
5.9
1920x1080
8.3
green tick vs
4.4
2560x1440
6.2
green tick vs
2.8
3840x2160
4.7
green tick vs
1.8

GPU Memory

Memory4096 MBvs2048 MB
Memory Speed1000 MHzvs1000 MHz
Memory Bus384 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth192GB/secvs64GB/sec
L2 Cache 0 KB 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 Units1920vs384
Actual Shader Performance75%vs18%
Technology28nmvs28nm
Texture Mapping Units160vs32
Texture Rate129.8 GTexel/svs26.7 GTexel/s
Render Output Units48vs16
Pixel Rate38.9 GPixel/svs13.4 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power150 Wattsvs50 Watts
Recommended PSU--

GPU Features

DirectX11.1vs12.0
Shader Model5.0vs5.0
Open GL4.3vs4.5
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4800MQ 4-Core 2.7GHzvsIntel Core i5-3360M 2.8GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 770M SLI is a combination of 2 GeForce GTX 770M put together using NVIDIA's SLI technology.
Together, this combination offers 1920 Shader Processing Units, 160 TMUs and 48 ROPs. This, on a 192-bit memory interface, per card, of fast GDDR5. While the central unit runs at 811MHz and goes up to XXXMHz, in Turbo Mode, the memory clock operates at 1000MHz.
Best case scenario, this combination is expected to perform better a single GeForce GTX 780M and deliver similar performance to a desktop GeForce GTX 680 but ultimately, its performance depends on the driver support and on the 3D application.
Therefore, and paired with a powerful processor, all demanding games should be playable at the highest settings. Still, this combination might surpass the 150W barrier of TDP and therefore require more power than a single GeForce GTX 780M, though delivering better 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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