Comparisons / Comparison of GeForce GT 640 and Radeon HD 7690M

Comparison of GeForce GT 640 and Radeon HD 7690M [S]ave

Attribute
GeForce GT 640 ×
Radeon HD 7690M ×
GPU
Release year (year)20122011
Reference cardNvidia GeForce GT 640 902 MHz 2 GB-
GPU brandNvidiaAMD
GPU nameGK107Thames
MarketDesktopLaptop
Clock speed (MHz)902725
Is dual GPU--
ModelGeForce GT 640Radeon HD 7690M
Memory
Memory (MB)1,0241,024
Memory bandwidth (GB/s)28.828.8
Memory bus (bit)128128
Memory typeDDR3DDR3
Memory clock speed (MHz)900900
Effective memory clock speed (MHz)1,8001,800
Noise and power
TDP (W)6520
Load power consumption (W)208-
Idle power consumption (W)104-
Load noise level (dB)46.4-
Idle noise level (dB)46.4-
Raw performance
Pixel rate (GPixel/s)7.2211.6
SMX units2-
Render output processors1616
Texture mapping units3224
Shading units384480
Floating-point performance (GFLOPS)693696
Compute units-6
Texture rate (GTexel/s)28.8617.4
Benchmarks
Metro: Last Light28-
Cloud Gate Factor12.939.64
Battlefield 445-
Face detection (mPixels/s)11.31-
Bitcoin mining (mHash/s)20.86-
Sky Diver Factor143.7580.72
Fire Strike Factor16.6810.53
Ocean surface simulation (frames/s)209.1-



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