NVIDIA GeForce GT 640 Rev. 2 vs NVIDIA GeForce GTX 660M

Comparative analysis of NVIDIA GeForce GT 640 Rev. 2 and NVIDIA GeForce GTX 660M videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, 3DMark Fire Strike - Graphics Score.

 

Differences

Reasons to consider the NVIDIA GeForce GT 640 Rev. 2

• Videocard is newer: launch date 1 year(s) 2 month(s) later
• Around 25% higher core clock speed: 1046 MHz vs 835 MHz
• Around 10% better floating-point performance: 803.3 gflops vs 729.6 gflops
• Around 2% lower typical power consumption: 49 Watt vs 50 Watt
• 2.5x more memory clock speed: 5008 MHz vs 2000 MHz
• 2.1x better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 2309 vs 1094
• Around 49% better performance in GFXBench 4.0 - Manhattan (Frames): 3354 vs 2253
• Around 1% better performance in GFXBench 4.0 - T-Rex (Frames): 3220 vs 3176
• 2.1x better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 2309 vs 1094
• Around 49% better performance in GFXBench 4.0 - Manhattan (Fps): 3354 vs 2253
• Around 1% better performance in GFXBench 4.0 - T-Rex (Fps): 3220 vs 3176

Reasons to consider the NVIDIA GeForce GTX 660M

• Around 82% higher texture fill rate: 30.4 billion / sec vs 16.74 GTexel / s
• Around 3% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 10.837 vs 10.475
• 2.3x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 405.086 vs 173.537
• 34.3x better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.098 vs 0.032
• 2.5x better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 21.798 vs 8.717
• 3.2x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 33.754 vs 10.454

Compare benchmarks

GPU 1: NVIDIA GeForce GT 640 Rev. 2
GPU 2: NVIDIA GeForce GTX 660M

CompuBench 1.5 Desktop - Face Detection (mPixels/s)	GPU 1 GPU 2	10.475 10.837
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	GPU 1 GPU 2	173.537 405.086
CompuBench 1.5 Desktop - T-Rex (Frames/s)	GPU 1 GPU 2	0.032 1.098
CompuBench 1.5 Desktop - Video Composition (Frames/s)	GPU 1 GPU 2	8.717 21.798
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	GPU 1 GPU 2	10.454 33.754
GFXBench 4.0 - Car Chase Offscreen (Frames)	GPU 1 GPU 2	2309 1094
GFXBench 4.0 - Manhattan (Frames)	GPU 1 GPU 2	3354 2253
GFXBench 4.0 - T-Rex (Frames)	GPU 1 GPU 2	3220 3176
GFXBench 4.0 - Car Chase Offscreen (Fps)	GPU 1 GPU 2	2309 1094
GFXBench 4.0 - Manhattan (Fps)	GPU 1 GPU 2	3354 2253
GFXBench 4.0 - T-Rex (Fps)	GPU 1 GPU 2	3220 3176

Compare specifications (specs)