NVIDIA GeForce GT 645M vs ATI Mobility Radeon HD 5870

Comparative analysis of NVIDIA GeForce GT 645M and ATI Mobility Radeon HD 5870 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: PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, 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).

 

Differences

Reasons to consider the NVIDIA GeForce GT 645M

• Videocard is newer: launch date 2 year(s) 8 month(s) later
• A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
• Around 56% lower typical power consumption: 32 Watt vs 50 Watt
• 2x more maximum memory size: 2 GB vs 1 GB
• Around 4% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 8.493 vs 8.17
• 2.2x better performance in GFXBench 4.0 - Manhattan (Frames): 3670 vs 1679
• Around 9% better performance in GFXBench 4.0 - T-Rex (Frames): 3341 vs 3077
• 2.2x better performance in GFXBench 4.0 - Manhattan (Fps): 3670 vs 1679
• Around 9% better performance in GFXBench 4.0 - T-Rex (Fps): 3341 vs 3077

Reasons to consider the ATI Mobility Radeon HD 5870

• Around 23% higher texture fill rate: 28 GTexel / s vs 22.7 billion / sec
• 2.1x more pipelines: 800 vs 384
• 2.1x better floating-point performance: 1,120.0 gflops vs 544.5 gflops
• 2.2x more memory clock speed: 4000 MHz vs 1800 MHz
• Around 16% better performance in PassMark - G3D Mark: 1085 vs 935
• Around 37% better performance in PassMark - G2D Mark: 219 vs 160
• 2.1x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 585.971 vs 285.42
• Around 17% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 20.108 vs 17.242
• 5.2x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 98.606 vs 19.116
• Around 8% better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 2070 vs 1913
• Around 8% better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 2070 vs 1913

Compare benchmarks

GPU 1: NVIDIA GeForce GT 645M
GPU 2: ATI Mobility Radeon HD 5870

PassMark - G3D Mark	GPU 1 GPU 2	935 1085
PassMark - G2D Mark	GPU 1 GPU 2	160 219
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	GPU 1 GPU 2	8.493 8.17
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	GPU 1 GPU 2	285.42 585.971
CompuBench 1.5 Desktop - T-Rex (Frames/s)	GPU 1 GPU 2	0.863 0.86
CompuBench 1.5 Desktop - Video Composition (Frames/s)	GPU 1 GPU 2	17.242 20.108
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	GPU 1 GPU 2	19.116 98.606
GFXBench 4.0 - Car Chase Offscreen (Frames)	GPU 1 GPU 2	1913 2070
GFXBench 4.0 - Manhattan (Frames)	GPU 1 GPU 2	3670 1679
GFXBench 4.0 - T-Rex (Frames)	GPU 1 GPU 2	3341 3077
GFXBench 4.0 - Car Chase Offscreen (Fps)	GPU 1 GPU 2	1913 2070
GFXBench 4.0 - Manhattan (Fps)	GPU 1 GPU 2	3670 1679
GFXBench 4.0 - T-Rex (Fps)	GPU 1 GPU 2	3341 3077

Compare specifications (specs)