GPUBoss Review Our evaluation of 640 vs 545 among Desktop GPUs

Gaming

Battlefield 3, Battlefield 4, Bioshock Infinite and 21 more

Graphics

T-Rex, Manhattan, Cloud Gate Factor, Sky Diver Factor and 1 more

Computing

Face Detection, Ocean Surface Simulation and 3 more

Performance per Watt

Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more

Value

Battlefield 3, Battlefield 4, Bioshock Infinite and 32 more

Noise and Power

TDP, Idle Power Consumption, Load Power Consumption and 2 more

5.8

Overall Score

Winner
Leadtek GeForce GT 640 

GPUBoss recommends the Leadtek GeForce GT 640  based on its compute performance and noise and power.

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VS

Differences What are the advantages of each

Front view of GeForce GT 640

Reasons to consider the
Leadtek GeForce GT 640

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Better sky diver factor score 143.75 vs 106.99 Around 35% better sky diver factor score
More shading units 384 vs 144 240 more shading units
Lower TDP 65W vs 105W Around 40% lower TDP
Front view of GeForce GT 545

Reasons to consider the
Nvidia GeForce GT 545

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Significantly higher effective memory clock speed 4,000 MHz vs 1,800 MHz Around 2.2x higher effective memory clock speed
Higher memory bandwidth 64 GB/s vs 28.8 GB/s Around 2.2x higher memory bandwidth
Higher memory clock speed 1,000 MHz vs 900 MHz More than 10% higher memory clock speed

Benchmarks Real world tests of GeForce GT 640 vs 545

Bitcoin mining Data courtesy CompuBench

GeForce GT 640
20.86 mHash/s
GeForce GT 545
35.37 mHash/s

Face detection Data courtesy CompuBench

GeForce GT 640
11.31 mPixels/s
GeForce GT 545
10.69 mPixels/s

Ocean surface simulation Data courtesy CompuBench

GeForce GT 640
209.1 frames/s
GeForce GT 545
306.54 frames/s

Particle simulation Data courtesy CompuBench

GeForce GT 640
134.81 mInteraction/s
GeForce GT 545
92.76 mInteraction/s

T-Rex (Compubench 1.5) Data courtesy CompuBench

GeForce GT 640
0.79 frames/s
GeForce GT 545
0.88 frames/s

Video composition Data courtesy CompuBench

GeForce GT 640
19.4 frames/s
GeForce GT 545
18.56 frames/s

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

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