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Gaming Performance Comparison

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7670M are noticeably better than the Nvidia GeForce GT 540M.

The GeForce GT 540M has a 72 MHz higher core clock speed than the Radeon HD 7670M, but the Radeon HD 7670M has 8 more Texture Mapping Units than the GeForce GT 540M. As a result, the Radeon HD 7670M exhibits a 3.6 GTexel/s better Texture Fill Rate than the GeForce GT 540M. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GeForce GT 540M has a 72 MHz higher core clock speed than the Radeon HD 7670M, but the Radeon HD 7670M has 12 more Render Output Units than the GeForce GT 540M. As a result, the Radeon HD 7670M exhibits a 6.9 GPixel/s better Pixel Fill Rate than the GeForce GT 540M. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Radeon HD 7670M was released over a year more recently than the GeForce GT 540M, and so the Radeon HD 7670M is likely to have better driver support, meaning it will be more optimized for running the latest games.

The Radeon HD 7670M and the GeForce GT 540M have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The Radeon HD 7670M has 28.8 GB/sec greater memory bandwidth than the GeForce GT 540M, which means that the memory performance of the Radeon HD 7670M is slightly better than the GeForce GT 540M.

The Radeon HD 7670M has 480 Shader Processing Units and the GeForce GT 540M has 96. However, the actual shader performance of the Radeon HD 7670M is 312 and the actual shader performance of the GeForce GT 540M is 192. The Radeon HD 7670M having 120 better shader performance and an altogether better performance when taking into account other relevant data means that the Radeon HD 7670M delivers a noticeably smoother and more efficient experience when processing graphical data than the GeForce GT 540M.

The GeForce GT 540M requires 35 Watts to run but there is no entry for the Radeon HD 7670M.

GPU Core Details

Core Speed600 MHzvs672 MHz
ArchitectureThames XTFermi GF108
Notebook GPUyesyes
SLI/Crossfirenovsno
Dedicatedyesvsyes
Release Date07 Jan 201206 Jan 2011
GPU LinkGD LinkGD Link
Approved
Comparison

GPU Memory

Memory1024 MBvs1024 MB
Memory Speed900 MHzvs900 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeGDDR5vsDDR3
Memory Bandwidth57.6GB/secvs28.8GB/sec
Comparison

GPU Display

Shader Processing Units480vs96
Actual Shader Performance312vs192
Technology40nmvs40nm
Texture Mapping Units24vs16
Texture Rate14.4 GTexel/svs10.8 GTexel/s
Render Output Units16vs4
Pixel Rate9.6 GPixel/svs2.7 GPixel/s
Comparison

GPU Display Tech

DirectX11vs11
Shader Model5.0vs5.0
Open GL4.2vs4.1
Max Resolution (WxH)2560x1600vs2560x1600
VGA Connections1vs1
DVI Connections1vs1
HDMI Connections1vs1
Comparison

GPU Power Requirements

Max Power-35 Watts

GPU Supporting Hardware

Recommended RAM6 GBvs4 GB
Recommended Screen Size1440x9001366x768
Recommended PSU--

Gaming Performance Value

The Elder Scrolls Vvs
Crysis 2vs
Saints Row 3vs
Left 4 Dead 2vs
Modern Warfare 3vs
Performance Value

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GPU Mini Review

Mini ReviewRadeon HD 7670M is an upper middle-class level GPU part of the 7000M Series released by AMD.
It's technically the successor of the middle-class Radeon HD 6650M. However, due to the fast GDDR5 memory type, the performance should be clearly better so Very Demanding games like Metro 2033 might be playable at medium settings (depending on the resolution + DirectX Version used) while demanding games like Crysis 2 are probably playable at high settings. Old and less demanding games like COD: Black Ops should be playable at max settings easily.
GeForce GT 540M is a middle-class mobile GPU still based on the 2010 Fermi architecture.
It's based on the Fermi GF108 Core and offers 96 Shader Processing Units, 16 TMUs and 4 ROPs on a 128-bit memory interface of 1GB DDR3. The central clock runs at 672MHz and the memory clock operates at 900MHz. Expect a power consumption of up to 35 Watts.
GeForce GT 540M is essentially a higher clocked GeForce GT 525M and so expect to only be able to play most modern demanding games at medium settings but with very fluent frame rates (40+) using a 720p resolution.
Recommended CPUAMD Athlon II M320 Dual-Core
Intel Core 2 Duo T5900 2.2GHz
AMD Athlon II M300 Dual-Core
AMD Turion II Neo K685
Intel Core 2 Duo T5800 2.0GHz
Intel Core i5-3337U 1.8GHz
Intel Core i7-740QM Quad 1.73GHz
Intel Core i7-2637M 2-Core 1.7GHz
Intel Core 2 Quad Q9100 2.26GHz
Intel Core i5-2410M 2.3GHz
Possible GPU Upgrades-GeForce GTX 470M SLI
GeForce GTX 765M
Radeon HD 6970M
GeForce GT 650M SLI
GeForce GTX 670MX
GPU Variants-GeForce GT 540M 2GB