GeForce GT 640 and Radeon 520 - video card comparison
Passmark - benchmark score GeForce GT 640 vs Radeon 520
GeForce GT 640
1210
Radeon 520
811
GeForce GT 640
Radeon 520
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
GK107
Oland
Market segment
Desktop
Laptop
Release date
June 2012
March 2017
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
None
Core clock speed
902 MHz
1030 MHz
Floating-point performance
692.7 gflops
659.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,040 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
65 Watt
50 Watt
Texture fill rate
28.86
20.60
Memory type
DDR3
DDR3, GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1782 MHz
2250 MHz
Memory bandwidth
28.51 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
12 (11_0)
12.0
CUDA
3.0
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.0
Vulkan
1.1.126
+