NVIDIA Tesla K20Xm vs NVIDIA GeForce GT 645 OEM

Comparative analysis of NVIDIA Tesla K20Xm and NVIDIA GeForce GT 645 OEM 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: 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 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

 

Differences

Reasons to consider the NVIDIA Tesla K20Xm

  • Videocard is newer: launch date 6 month(s) later
  • 4.4x more texture fill rate: 164.0 GTexel / s vs 37.2 GTexel / s
  • 9.3x more pipelines: 2688 vs 288
  • 4.4x better floating-point performance: 3,935 gflops vs 894.0 gflops
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
  • 6x more maximum memory size: 6 GB vs 1 GB
  • Around 36% higher memory clock speed: 5200 MHz vs 3828 MHz
  • Around 45% better performance in PassMark - G3D Mark: 2918 vs 2006
  • 3.7x better performance in GFXBench 4.0 - T-Rex (Frames): 7038 vs 1914
  • 3.7x better performance in GFXBench 4.0 - T-Rex (Fps): 7038 vs 1914
Specifications (specs)
Launch date 12 November 2012 vs 24 April 2012
Texture fill rate 164.0 GTexel / s vs 37.2 GTexel / s
Pipelines 2688 vs 288
Floating-point performance 3,935 gflops vs 894.0 gflops
Manufacturing process technology 28 nm vs 40 nm
Maximum memory size 6 GB vs 1 GB
Memory clock speed 5200 MHz vs 3828 MHz
Benchmarks
PassMark - G3D Mark 2918 vs 2006
GFXBench 4.0 - T-Rex (Frames) 7038 vs 1914
GFXBench 4.0 - T-Rex (Fps) 7038 vs 1914

Reasons to consider the NVIDIA GeForce GT 645 OEM

  • Around 6% higher core clock speed: 776 MHz vs 732 MHz
  • 2.3x lower typical power consumption: 102 Watt vs 235 Watt
  • 2.6x better performance in PassMark - G2D Mark: 443 vs 172
Specifications (specs)
Core clock speed 776 MHz vs 732 MHz
Thermal Design Power (TDP) 102 Watt vs 235 Watt
Benchmarks
PassMark - G2D Mark 443 vs 172

Compare benchmarks

GPU 1: NVIDIA Tesla K20Xm
GPU 2: NVIDIA GeForce GT 645 OEM

PassMark - G3D Mark
GPU 1
GPU 2
2918
2006
PassMark - G2D Mark
GPU 1
GPU 2
172
443
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
7038
1914
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
7038
1914
Name NVIDIA Tesla K20Xm NVIDIA GeForce GT 645 OEM
PassMark - G3D Mark 2918 2006
PassMark - G2D Mark 172 443
Geekbench - OpenCL 16023
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 49.455
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 1666.354
CompuBench 1.5 Desktop - T-Rex (Frames/s) 5.836
CompuBench 1.5 Desktop - Video Composition (Frames/s) 92.472
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 275.229
GFXBench 4.0 - Manhattan (Frames) 1032
GFXBench 4.0 - T-Rex (Frames) 7038 1914
GFXBench 4.0 - Manhattan (Fps) 1032
GFXBench 4.0 - T-Rex (Fps) 7038 1914

Compare specifications (specs)

NVIDIA Tesla K20Xm NVIDIA GeForce GT 645 OEM

Essentials

Architecture Kepler Fermi 2.0
Code name GK110 GF114
Launch date 12 November 2012 24 April 2012
Launch price (MSRP) $7,699
Place in performance rating 791 557
Type Workstation Desktop

Technical info

Core clock speed 732 MHz 776 MHz
Floating-point performance 3,935 gflops 894.0 gflops
Manufacturing process technology 28 nm 40 nm
Pipelines 2688 288
Texture fill rate 164.0 GTexel / s 37.2 GTexel / s
Thermal Design Power (TDP) 235 Watt 102 Watt
Transistor count 7,080 million 1,950 million

Video outputs and ports

Display Connectors No outputs 2x DVI, 1x mini-HDMI

Compatibility, dimensions and requirements

Interface PCIe 3.0 x16 PCIe 2.0 x16
Length 267 mm 210 mm

API support

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

Memory

Maximum RAM amount 6 GB 1 GB
Memory bandwidth 249.6 GB / s 91.9 GB / s
Memory bus width 384 Bit 192 Bit
Memory clock speed 5200 MHz 3828 MHz
Memory type GDDR5 GDDR5