NVIDIA GeForce GTX 670 vs NVIDIA GeForce GT 645 OEM

Comparative analysis of NVIDIA GeForce GTX 670 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, 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), 3DMark Fire Strike - Graphics Score.

 

Differences

Reasons to consider the NVIDIA GeForce GTX 670

  • Around 26% higher core clock speed: 980 MHz vs 776 MHz
  • 2.8x more texture fill rate: 102.5 billion / sec vs 37.2 GTexel / s
  • 4.7x more pipelines: 1344 vs 288
  • 2.8x better floating-point performance: 2,459.5 gflops vs 894.0 gflops
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
  • 2x more maximum memory size: 2 GB vs 1 GB
  • 2.7x better performance in PassMark - G3D Mark: 5331 vs 2006
  • Around 19% better performance in PassMark - G2D Mark: 529 vs 443
  • Around 76% better performance in GFXBench 4.0 - T-Rex (Frames): 3361 vs 1914
  • Around 76% better performance in GFXBench 4.0 - T-Rex (Fps): 3361 vs 1914
Specifications (specs)
Core clock speed 980 MHz vs 776 MHz
Texture fill rate 102.5 billion / sec vs 37.2 GTexel / s
Pipelines 1344 vs 288
Floating-point performance 2,459.5 gflops vs 894.0 gflops
Manufacturing process technology 28 nm vs 40 nm
Maximum memory size 2 GB vs 1 GB
Benchmarks
PassMark - G3D Mark 5331 vs 2006
PassMark - G2D Mark 529 vs 443
GFXBench 4.0 - T-Rex (Frames) 3361 vs 1914
GFXBench 4.0 - T-Rex (Fps) 3361 vs 1914

Reasons to consider the NVIDIA GeForce GT 645 OEM

  • Around 67% lower typical power consumption: 102 Watt vs 170 Watt
  • 638x more memory clock speed: 3828 MHz vs 6.0 GB/s
Thermal Design Power (TDP) 102 Watt vs 170 Watt
Memory clock speed 3828 MHz vs 6.0 GB/s

Compare benchmarks

GPU 1: NVIDIA GeForce GTX 670
GPU 2: NVIDIA GeForce GT 645 OEM

PassMark - G3D Mark
GPU 1
GPU 2
5331
2006
PassMark - G2D Mark
GPU 1
GPU 2
529
443
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
3361
1914
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
3361
1914
Name NVIDIA GeForce GTX 670 NVIDIA GeForce GT 645 OEM
PassMark - G3D Mark 5331 2006
PassMark - G2D Mark 529 443
Geekbench - OpenCL 15400
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 41.613
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 971.208
CompuBench 1.5 Desktop - T-Rex (Frames/s) 4.281
CompuBench 1.5 Desktop - Video Composition (Frames/s) 40.404
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 86.208
GFXBench 4.0 - Car Chase Offscreen (Frames) 7038
GFXBench 4.0 - Manhattan (Frames) 3686
GFXBench 4.0 - T-Rex (Frames) 3361 1914
GFXBench 4.0 - Car Chase Offscreen (Fps) 7038
GFXBench 4.0 - Manhattan (Fps) 3686
GFXBench 4.0 - T-Rex (Fps) 3361 1914
3DMark Fire Strike - Graphics Score 1812

Compare specifications (specs)

NVIDIA GeForce GTX 670 NVIDIA GeForce GT 645 OEM

Essentials

Architecture Kepler Fermi 2.0
Code name GK104 GF114
Launch date 10 May 2012 24 April 2012
Launch price (MSRP) $399
Place in performance rating 565 557
Price now $474.99
Type Desktop Desktop
Value for money (0-100) 13.20

Technical info

Boost clock speed 980 MHz
Core clock speed 980 MHz 776 MHz
CUDA cores 1344
Floating-point performance 2,459.5 gflops 894.0 gflops
Manufacturing process technology 28 nm 40 nm
Maximum GPU temperature 97 °C
Pipelines 1344 288
Texture fill rate 102.5 billion / sec 37.2 GTexel / s
Thermal Design Power (TDP) 170 Watt 102 Watt
Transistor count 3,540 million 1,950 million

Video outputs and ports

Audio input for HDMI Internal
Display Connectors One Dual Link DVI-I, One Dual Link DVI-D, One HDMI..., 2x DVI, 1x HDMI, 1x DisplayPort 2x DVI, 1x mini-HDMI
G-SYNC support
HDCP
HDMI
Maximum VGA resolution 2048x1536
Multi monitor support

Compatibility, dimensions and requirements

Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
Interface PCIe 3.0 x16 PCIe 2.0 x16
Length 9.5" (24.1 cm) 210 mm
SLI options 3-way
Supplementary power connectors Two 6-pin

API support

DirectX 12.0 (11_0) 12.0 (11_0)
OpenGL 4.2 4.6

Memory

Maximum RAM amount 2 GB 1 GB
Memory bandwidth 192.2 GB / s 91.9 GB / s
Memory bus width 256-bit GDDR5 192 Bit
Memory clock speed 6.0 GB/s 3828 MHz
Memory type GDDR5 GDDR5

Technologies

3D Blu-Ray
3D Gaming
3D Vision
Adaptive VSync
CUDA
FXAA
GPU Boost
SLI
TXAA