GeForce GT 640 and 8514-Ultra - video card comparison
GeForce GT 640
8514-Ultra
Architecture
Kepler (2012−2018)
Mach (1992−1997)
GPU code name
GK107
Mach8
Market segment
Desktop
Desktop
Release date
June 2012
1992
Interface
PCIe 3.0 x16
ISA 16 Bit
Supplementary power connectors
None
None
Core clock speed
902 MHz
10 MHz
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
800 nm
Number of transistors
1,270 million
-
Pipelines / CUDA cores
384
-
Power consumption (TDP)
65 Watt
-
Texture fill rate
28.86
-
Memory type
DDR3
VRAM
Maximum RAM amount
2 GB
1 MB
Memory bus width
128 Bit
32 Bit
Memory clock speed
1782 MHz
10 MHz
Memory bandwidth
28.51 GB/s
40 MB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
N/A
CUDA
3.0
-
OpenCL
1.2
N/A
OpenGL
4.6
N/A
Shader Model
5.1
-
Vulkan
1.1.126
N/A