NVIDIA GeForce GT 640 videocard review

NVIDIA GeForce GT 640

GeForce GT 640 videocard released by NVIDIA; release date: 5 June 2012. At the time of release, the videocard cost $99. The videocard is designed for desktop-computers and based on Kepler microarchitecture codenamed GK107.

Core clock speed - 902 MHz. Texture fill rate - 28.86 GTexel / s. Pipelines - 384. Floating-point performance - 692.7 gflops. Manufacturing process technology - 28 nm. Transistors count - 1,270 million. Power consumption (TDP) - 65 Watt.

Memory type: DDR3. Maximum RAM amount - 2 GB. Memory bus width - 128 Bit. Memory clock speed - 1782 MHz. Memory bandwidth - 28.51 GB / s.

Benchmarks

PassMark
G3D Mark
Top 1 GPU
This GPU
38534
1178
PassMark
G2D Mark
Top 1 GPU
This GPU
1294
295
Geekbench
OpenCL
Top 1 GPU
This GPU
345391
3727
CompuBench 1.5 Desktop
Face Detection
Top 1 GPU
This GPU
939.363 mPixels/s
11.448 mPixels/s
CompuBench 1.5 Desktop
Ocean Surface Simulation
Top 1 GPU
This GPU
14101.507 Frames/s
206.777 Frames/s
CompuBench 1.5 Desktop
T-Rex
Top 1 GPU
This GPU
93.230 Frames/s
0.792 Frames/s
CompuBench 1.5 Desktop
Video Composition
Top 1 GPU
This GPU
530.303 Frames/s
14.637 Frames/s
CompuBench 1.5 Desktop
Bitcoin Mining
Top 1 GPU
This GPU
4413.025 mHash/s
20.860 mHash/s
GFXBench 4.0
Car Chase Offscreen
Top 1 GPU
This GPU
34770 Frames
2134 Frames
GFXBench 4.0
Manhattan
Top 1 GPU
This GPU
27823 Frames
2375 Frames
GFXBench 4.0
T-Rex
Top 1 GPU
This GPU
69225 Frames
3328 Frames
GFXBench 4.0
Car Chase Offscreen
Top 1 GPU
This GPU
34770.000 Fps
2134.000 Fps
GFXBench 4.0
Manhattan
Top 1 GPU
This GPU
27823.000 Fps
2375.000 Fps
GFXBench 4.0
T-Rex
Top 1 GPU
This GPU
69225.000 Fps
3328.000 Fps
3DMark Fire Strike
Graphics Score
Top 1 GPU
This GPU
36466
1565
Name Value
PassMark - G3D Mark 1178
PassMark - G2D Mark 295
Geekbench - OpenCL 3727
CompuBench 1.5 Desktop - Face Detection 11.448 mPixels/s
CompuBench 1.5 Desktop - Ocean Surface Simulation 206.777 Frames/s
CompuBench 1.5 Desktop - T-Rex 0.792 Frames/s
CompuBench 1.5 Desktop - Video Composition 14.637 Frames/s
CompuBench 1.5 Desktop - Bitcoin Mining 20.860 mHash/s
GFXBench 4.0 - Car Chase Offscreen 2134 Frames
GFXBench 4.0 - Manhattan 2375 Frames
GFXBench 4.0 - T-Rex 3328 Frames
GFXBench 4.0 - Car Chase Offscreen 2134.000 Fps
GFXBench 4.0 - Manhattan 2375.000 Fps
GFXBench 4.0 - T-Rex 3328.000 Fps
3DMark Fire Strike - Graphics Score 1565

Specifications (specs)

Essentials

Architecture Kepler
Code name GK107
Launch date 5 June 2012
Launch price (MSRP) $99
Place in performance rating 1199
Price now $59.99
Type Desktop
Value for money (0-100) 25.25

Technical info

Core clock speed 902 MHz
Floating-point performance 692.7 gflops
Manufacturing process technology 28 nm
Pipelines 384
Texture fill rate 28.86 GTexel / s
Thermal Design Power (TDP) 65 Watt
Transistor count 1,270 million

Video outputs and ports

Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort

Compatibility, dimensions and requirements

Interface PCIe 3.0 x16
Length 145 mm
Supplementary power connectors None

API support

DirectX 12.0 (11_0)
OpenGL 4.6

Memory

Maximum RAM amount 2 GB
Memory bandwidth 28.51 GB / s
Memory bus width 128 Bit
Memory clock speed 1782 MHz
Memory type DDR3