Quadro FX 3800 and GeForce GT 640 OEM - video card comparison
Quadro FX 3800
GeForce GT 640 OEM
Architecture
Tesla 2.0 (2007−2013)
Kepler (2012−2018)
GPU code name
GT200B
GK107
Market segment
Workstation
Desktop
Release date
March 2009
April 2012
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
None
Core clock speed
600 MHz
797 MHz
Floating-point performance
462.3 gflops
612.1 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
1,400 million
1,270 million
Pipelines / CUDA cores
192
384
Power consumption (TDP)
108 Watt
50 Watt
Texture fill rate
38.40
25.50
Memory type
GDDR3
DDR3
Maximum RAM amount
1 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1600 MHz
1782 MHz
Memory bandwidth
51.2 GB/s
28.51 GB/s
Display Connectors
1x DVI, 2x DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
11.1 (10_0)
12 (11_0)
CUDA
1.3
3.0
OpenCL
1.1
1.2
OpenGL
3.3
4.6
Shader Model
4.0
5.1
Vulkan
N/A
1.1.126