GeForce GT 640M vs Radeon R7 M260

GeForce GT 640M Memory: 2048Mb DDR3MOBILE Release date: 22 Mar 2012

Radeon R7 M260 Memory: 1024Mb GDDR5MOBILE Release date: 11 Jun 2014

Summary

Synthetic performance index

GeForce GT 640M
100%
Radeon R7 M260
106%

Relative performance

Reasons to consider GeForce GT 640M

Supports PhysX

Supports G-Sync

Supports ShadowPlay (allows game streaming/recording with minimum performance penalty)

Based on an outdated architecture (Nvidia Kepler), there are less performance optimizations for current games and applications

Reasons to consider Radeon R7 M260

This is a much newer product, it might have better long term support.

Around 6% higher average synthetic performance.

Supports Direct3D 12 Async Compute

Supports ReLive (allows game streaming/recording with minimum performance penalty)

Supports Mantle

Based on an outdated architecture (AMD GCN), there may be no performance optimizations for current games and applications

HWBench recommends Radeon R7 M260

The Radeon R7 M260 is the better performing card based on the synthetic benchmarks used (1 benchmarks).

Specifications

Core Configuration

	GeForce GT 640M		Radeon R7 M260
GPU Name	GK107 (N13P-GS)	vs	Topaz (Topaz XT)
Fab Process	28 nm	vs	28 nm
Die Size	118 mmÂ²	vs	77 mmÂ²
Transistors	1,270 million	vs	unknown
Shaders	384	vs	384
Compute Units	2	vs	6
Core clock	625 MHz	vs	940 MHz
ROPs	16	vs	8
TMUs	32	vs	24

Memory Configuration

	GeForce GT 640M		Radeon R7 M260
Memory Type	DDR3	vs	GDDR5
Bus Width	128 bit	vs	128 bit
Memory Speed	900 MHz 1800 MHz effective	vs	900 MHz 3600 MHz effective
Memory Size	2048 Mb	vs	1024 Mb

Additional details

	GeForce GT 640M		Radeon R7 M260
TDP	32 watts	vs	0 watts
Release Date	22 Mar 2012	vs	11 Jun 2014

Raw Performance comparison

Pixel Rate

GeForce GT 640M
5.00 GP/s
Radeon R7 M260
7.52 GP/s

GigaPixels - higher is better

Texel Rate

GeForce GT 640M
20.00 GT/s
Radeon R7 M260
22.56 GT/s

GigaTexels - higher is better

Memory bandwidth

GeForce GT 640M
28.80 GB/s
Radeon R7 M260
57.60 GB/s

GB/s - higher is better

Single precision performance

GeForce GT 640M
480.00 GFLOPs
Radeon R7 M260
721.90 GFLOPs

GFLOPs - higher is better

Synthetic benchmarks

3DMark 11

GeForce GT 640M
1770
Radeon R7 M260
1880

Points (higher is better)

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