NVIDIA GRID K2 vs NVIDIA GeForce GTX 645 OEM

Comparative analysis of NVIDIA GRID K2 and NVIDIA GeForce GTX 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 - 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 GRID K2

  • 7.5x more texture fill rate: 2x 95.36 GTexel / s billion / sec vs 39.55 GTexel / s
  • 5.3x more pipelines: 2x 1536 vs 576
  • 4.8x better floating-point performance: 2x 2,289 gflops vs 949.2 gflops
  • 8x more maximum memory size: 2x 4 GB vs 1 GB
  • Around 25% higher memory clock speed: 5000 MHz vs 4000 MHz
  • Around 45% better performance in PassMark - G3D Mark: 2737 vs 1882
  • 2x better performance in Geekbench - OpenCL: 10550 vs 5238
  • Around 37% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 18.948 vs 13.806
  • Around 77% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 968.568 vs 546.51
  • Around 68% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 2.58 vs 1.535
  • Around 20% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 32.988 vs 27.524
  • 3x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 114.144 vs 38.664
  • 4.4x better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 6371 vs 1435
  • 4.4x better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 6371 vs 1435
Specifications (specs)
Texture fill rate 2x 95.36 GTexel / s billion / sec vs 39.55 GTexel / s
Pipelines 2x 1536 vs 576
Floating-point performance 2x 2,289 gflops vs 949.2 gflops
Maximum memory size 2x 4 GB vs 1 GB
Memory clock speed 5000 MHz vs 4000 MHz
Benchmarks
PassMark - G3D Mark 2737 vs 1882
Geekbench - OpenCL 10550 vs 5238
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 18.948 vs 13.806
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 968.568 vs 546.51
CompuBench 1.5 Desktop - T-Rex (Frames/s) 2.58 vs 1.535
CompuBench 1.5 Desktop - Video Composition (Frames/s) 32.988 vs 27.524
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 114.144 vs 38.664
GFXBench 4.0 - Car Chase Offscreen (Frames) 6371 vs 1435
GFXBench 4.0 - Car Chase Offscreen (Fps) 6371 vs 1435

Reasons to consider the NVIDIA GeForce GTX 645 OEM

  • Around 11% higher core clock speed: 824 MHz vs 745 MHz
  • 3.5x lower typical power consumption: 65 Watt vs 225 Watt
  • Around 35% better performance in PassMark - G2D Mark: 431 vs 319
  • 10.3x better performance in GFXBench 4.0 - Manhattan (Frames): 3531 vs 344
  • 10.6x better performance in GFXBench 4.0 - T-Rex (Frames): 3300 vs 312
  • 10.3x better performance in GFXBench 4.0 - Manhattan (Fps): 3531 vs 344
  • 10.6x better performance in GFXBench 4.0 - T-Rex (Fps): 3300 vs 312
Specifications (specs)
Core clock speed 824 MHz vs 745 MHz
Thermal Design Power (TDP) 65 Watt vs 225 Watt
Benchmarks
PassMark - G2D Mark 431 vs 319
GFXBench 4.0 - Manhattan (Frames) 3531 vs 344
GFXBench 4.0 - T-Rex (Frames) 3300 vs 312
GFXBench 4.0 - Manhattan (Fps) 3531 vs 344
GFXBench 4.0 - T-Rex (Fps) 3300 vs 312

Compare benchmarks

GPU 1: NVIDIA GRID K2
GPU 2: NVIDIA GeForce GTX 645 OEM

PassMark - G3D Mark
GPU 1
GPU 2
2737
1882
PassMark - G2D Mark
GPU 1
GPU 2
319
431
Geekbench - OpenCL
GPU 1
GPU 2
10550
5238
CompuBench 1.5 Desktop - Face Detection (mPixels/s)
GPU 1
GPU 2
18.948
13.806
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)
GPU 1
GPU 2
968.568
546.51
CompuBench 1.5 Desktop - T-Rex (Frames/s)
GPU 1
GPU 2
2.58
1.535
CompuBench 1.5 Desktop - Video Composition (Frames/s)
GPU 1
GPU 2
32.988
27.524
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)
GPU 1
GPU 2
114.144
38.664
GFXBench 4.0 - Car Chase Offscreen (Frames)
GPU 1
GPU 2
6371
1435
GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
344
3531
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
312
3300
GFXBench 4.0 - Car Chase Offscreen (Fps)
GPU 1
GPU 2
6371
1435
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
344
3531
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
312
3300
Name NVIDIA GRID K2 NVIDIA GeForce GTX 645 OEM
PassMark - G3D Mark 2737 1882
PassMark - G2D Mark 319 431
Geekbench - OpenCL 10550 5238
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 18.948 13.806
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 968.568 546.51
CompuBench 1.5 Desktop - T-Rex (Frames/s) 2.58 1.535
CompuBench 1.5 Desktop - Video Composition (Frames/s) 32.988 27.524
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 114.144 38.664
GFXBench 4.0 - Car Chase Offscreen (Frames) 6371 1435
GFXBench 4.0 - Manhattan (Frames) 344 3531
GFXBench 4.0 - T-Rex (Frames) 312 3300
GFXBench 4.0 - Car Chase Offscreen (Fps) 6371 1435
GFXBench 4.0 - Manhattan (Fps) 344 3531
GFXBench 4.0 - T-Rex (Fps) 312 3300

Compare specifications (specs)

NVIDIA GRID K2 NVIDIA GeForce GTX 645 OEM

Essentials

Architecture Kepler Kepler
Code name GK104 GK106
Launch date 11 May 2013 22 April 2013
Launch price (MSRP) $5,199
Place in performance rating 975 976
Type Workstation Desktop

Technical info

Core clock speed 745 MHz 824 MHz
Floating-point performance 2x 2,289 gflops 949.2 gflops
Manufacturing process technology 28 nm 28 nm
Pipelines 2x 1536 576
Texture fill rate 2x 95.36 GTexel / s billion / sec 39.55 GTexel / s
Thermal Design Power (TDP) 225 Watt 65 Watt
Transistor count 3,540 million 2,540 million

Video outputs and ports

Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort

Compatibility, dimensions and requirements

Interface PCIe 3.0 x16 PCIe 3.0 x16
Length 267 mm 147 mm
Supplementary power connectors 1x 8-pin None

API support

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

Memory

Maximum RAM amount 2x 4 GB 1 GB
Memory bandwidth 2x 160.0 GB / s 64 GB / s
Memory bus width 2x 256 Bit 128 Bit
Memory clock speed 5000 MHz 4000 MHz
Memory type GDDR5 GDDR5