NVIDIA Tesla K40c vs NVIDIA GeForce GT 645 OEM

Comparative analysis of NVIDIA Tesla K40c 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: 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), PassMark - G2D Mark, PassMark - G3D Mark, GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

 

Differences

Reasons to consider the NVIDIA Tesla K40c

  • Videocard is newer: launch date 1 year(s) 5 month(s) later
  • 4.8x more texture fill rate: 178.8 GTexel / s vs 37.2 GTexel / s
  • 10x more pipelines: 2880 vs 288
  • 4.8x better floating-point performance: 4,291 gflops vs 894.0 gflops
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
  • 12x more maximum memory size: 12 GB vs 1 GB
  • Around 57% higher memory clock speed: 6008 MHz vs 3828 MHz
  • 2.2x better performance in PassMark - G3D Mark: 4495 vs 2006
Specifications (specs)
Launch date 8 October 2013 vs 24 April 2012
Texture fill rate 178.8 GTexel / s vs 37.2 GTexel / s
Pipelines 2880 vs 288
Floating-point performance 4,291 gflops vs 894.0 gflops
Manufacturing process technology 28 nm vs 40 nm
Maximum memory size 12 GB vs 1 GB
Memory clock speed 6008 MHz vs 3828 MHz
Benchmarks
PassMark - G3D Mark 4495 vs 2006

Reasons to consider the NVIDIA GeForce GT 645 OEM

  • Around 4% higher core clock speed: 776 MHz vs 745 MHz
  • 2.4x lower typical power consumption: 102 Watt vs 245 Watt
  • Around 36% better performance in PassMark - G2D Mark: 443 vs 325
Specifications (specs)
Core clock speed 776 MHz vs 745 MHz
Thermal Design Power (TDP) 102 Watt vs 245 Watt
Benchmarks
PassMark - G2D Mark 443 vs 325

Compare benchmarks

GPU 1: NVIDIA Tesla K40c
GPU 2: NVIDIA GeForce GT 645 OEM

PassMark - G2D Mark
GPU 1
GPU 2
325
443
PassMark - G3D Mark
GPU 1
GPU 2
4495
2006
Name NVIDIA Tesla K40c NVIDIA GeForce GT 645 OEM
Geekbench - OpenCL 17468
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 61.566
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 1779.043
CompuBench 1.5 Desktop - T-Rex (Frames/s) 6.463
CompuBench 1.5 Desktop - Video Composition (Frames/s) 103.169
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 308.261
PassMark - G2D Mark 325 443
PassMark - G3D Mark 4495 2006
GFXBench 4.0 - T-Rex (Frames) 1914
GFXBench 4.0 - T-Rex (Fps) 1914

Compare specifications (specs)

NVIDIA Tesla K40c NVIDIA GeForce GT 645 OEM

Essentials

Architecture Kepler Fermi 2.0
Code name GK110B GF114
Launch date 8 October 2013 24 April 2012
Launch price (MSRP) $7,699
Place in performance rating 513 565
Type Workstation Desktop

Technical info

Core clock speed 745 MHz 776 MHz
Floating-point performance 4,291 gflops 894.0 gflops
Manufacturing process technology 28 nm 40 nm
Pipelines 2880 288
Texture fill rate 178.8 GTexel / s 37.2 GTexel / s
Thermal Design Power (TDP) 245 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
Supplementary power connectors 1x 6-pin + 1x 8-pin

API support

DirectX 12.0 (11_1) 12.0 (11_0)
OpenGL 4.6 4.6

Memory

Maximum RAM amount 12 GB 1 GB
Memory bandwidth 288.4 GB / s 91.9 GB / s
Memory bus width 384 Bit 192 Bit
Memory clock speed 6008 MHz 3828 MHz
Memory type GDDR5 GDDR5