NVIDIA Tesla K20s vs NVIDIA GeForce GT 640M Mac Edition

Comparative analysis of NVIDIA Tesla K20s and NVIDIA GeForce GT 640M Mac Edition videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. 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).

 

Differences

Reasons to consider the NVIDIA Tesla K20s

  • 6.2x more texture fill rate: 146.8 GTexel / s vs 23.84 GTexel / s
  • 6.5x more pipelines: 2496 vs 384
  • 6.2x better floating-point performance: 3,524 gflops vs 572.2 gflops
  • 10x more maximum memory size: 5 GB vs 512 MB
  • Around 4% higher memory clock speed: 5200 MHz vs 5000 MHz
Texture fill rate 146.8 GTexel / s vs 23.84 GTexel / s
Pipelines 2496 vs 384
Floating-point performance 3,524 gflops vs 572.2 gflops
Maximum memory size 5 GB vs 512 MB
Memory clock speed 5200 MHz vs 5000 MHz

Reasons to consider the NVIDIA GeForce GT 640M Mac Edition

  • Around 6% higher core clock speed: 745 MHz vs 706 MHz
  • 7x lower typical power consumption: 32 Watt vs 225 Watt
Core clock speed 745 MHz vs 706 MHz
Thermal Design Power (TDP) 32 Watt vs 225 Watt

Compare benchmarks

GPU 1: NVIDIA Tesla K20s
GPU 2: NVIDIA GeForce GT 640M Mac Edition

Name NVIDIA Tesla K20s NVIDIA GeForce GT 640M Mac Edition
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 6.577
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 226.218
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.559
CompuBench 1.5 Desktop - Video Composition (Frames/s) 11.947
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 12.554
GFXBench 4.0 - Car Chase Offscreen (Frames) 1706
GFXBench 4.0 - Manhattan (Frames) 2983
GFXBench 4.0 - T-Rex (Frames) 5586
GFXBench 4.0 - Car Chase Offscreen (Fps) 28.9
GFXBench 4.0 - Manhattan (Fps) 48.1
GFXBench 4.0 - T-Rex (Fps) 99.8

Compare specifications (specs)

NVIDIA Tesla K20s NVIDIA GeForce GT 640M Mac Edition

Essentials

Architecture Kepler Kepler
Code name GK110 GK107
Launch date 18 February 2013 3 February 2013
Launch price (MSRP) $3,199
Place in performance rating not rated 1514
Type Workstation Desktop

Technical info

Core clock speed 706 MHz 745 MHz
Floating-point performance 3,524 gflops 572.2 gflops
Manufacturing process technology 28 nm 28 nm
Pipelines 2496 384
Texture fill rate 146.8 GTexel / s 23.84 GTexel / s
Thermal Design Power (TDP) 225 Watt 32 Watt
Transistor count 7,080 million 1,270 million

Video outputs and ports

Display Connectors No outputs No outputs

Compatibility, dimensions and requirements

Interface PCIe 2.0 x16 PCIe 3.0 x16
Length 267 mm

API support

DirectX 12.0 (11_0) 12.0 (11_0)
OpenGL 4.6 4.6

Memory

Maximum RAM amount 5 GB 512 MB
Memory bandwidth 208.0 GB / s 40 GB / s
Memory bus width 320 Bit 64 Bit
Memory clock speed 5200 MHz 5000 MHz
Memory type GDDR5 GDDR5

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