Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 M295X 4GB GeForce GTX 660M
Cyberpunk 2077 82% 460%
Assassins Creed: Valhalla 68% 417%
Call of Duty: Black Ops Cold War 87% 475%
Genshin Impact 84% 465%
eFootball PES 2021 7% 185%
Marvel's Avengers 74% 435%
Watch Dogs Legion 77% 445%
FIFA 21 7% 185%
Mafia: Definitive Edition 163% 710%
Microsoft Flight Simulator 63% 400%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 M295X 4GB are massively better than the Nvidia GeForce GTX 660M.

The R9 M295X has a 15 MHz higher core clock speed and 96 more Texture Mapping Units than the GeForce GTX 660M. This results in the R9 M295X providing 82.1 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 R9 M295X has a 15 MHz higher core clock speed and 16 more Render Output Units than the GeForce GTX 660M. This results in the R9 M295X providing 13.8 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 R9 M295X was released over a year more recently than the GeForce GTX 660M, and so the R9 M295X 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 R9 M295X 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 R9 M295X also has superior memory performance overall.

The R9 M295X has 110.3 GB/sec greater memory bandwidth than the GeForce GTX 660M, which means that the memory performance of the R9 M295X is massively better than the GeForce GTX 660M.

The Radeon R9 M295X 4GB has 2048 Shader Processing Units and the GeForce GTX 660M has 384. However, the actual shader performance of the R9 M295X is 1132 and the actual shader performance of the GeForce GTX 660M is 365. The R9 M295X having 767 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 M295X delivers a massively smoother and more efficient experience when processing graphical data than the GeForce GTX 660M.

The Radeon R9 M295X 4GB requires 125 Watts to run and the GeForce GTX 660M requires 50 Watts. The R9 M295X requires 75 Watts more than the GeForce GTX 660M to run. The difference is significant enough that the R9 M295X 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 Speed850 MHzvs835 MHz
Boost Clock-vs950 MHz
ArchitectureTongaKepler GK107-N13E-GE-A2
OC Potential Fair vs Poor
Driver Support - vs Good
Release Date23 Nov 2014vs22 Mar 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs
7.9
1600x900
9.9
green tick vs
5.9
1920x1080
7.9
green tick vs
4.4
2560x1440
5.7
green tick vs
2.8
3840x2160
4.1
green tick vs
1.8

GPU Memory

Memory4096 MBvs2048 MB
Memory Speed1362 MHzvs1000 MHz
Memory Bus256 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth174.3GB/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 Units2048vs384
Actual Shader Performance54%vs18%
Technology28nmvs28nm
Texture Mapping Units128vs32
Texture Rate108.8 GTexel/svs26.7 GTexel/s
Render Output Units32vs16
Pixel Rate27.2 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 Power125 Wattsvs50 Watts
Recommended PSU--

GPU Features

DirectX11.2vs12.0
Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4930MX 4-Core 3.0GHzvsIntel Core i5-3360M 2.8GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon R9 M295X 4GB is an upcoming high-end mobile Graphics Card, based on the second revision of the GCN architecture.
It offers a GPU codenamed "Tonga" which is at essence an upgraded Tahiti XTX GPU (used on Radeon HD 7970 GE) and features 2048 Shader Processing Units, 128 TMUs and 32 ROPs, on a 256-bit memory interface of fast GDDR5.
The clock frequencies are not known yet.
Expect a rated board TDP that should clearly surpass the 100W barrier and performance around the levels of a Radeon HD 7950.
There are no benchmarks yet but we predict Radeon R9 M295X 4GB has potential to be slightly faster than the world's most powerful mobile Graphics Card as of June 2014 - GeForce GTX 880M.
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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