GeForce GT 640 and Radeon RX 540X - video card comparison
GeForce GT 640
Radeon RX 540X
Architecture
Kepler (2012−2018)
GCN 4.0 (2016−2020)
GPU code name
GK107
Polaris 12
Market segment
Desktop
Laptop
Release date
June 2012
March 2018
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
-
1219 MHz
Core clock speed
902 MHz
-
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,270 million
2,200 million
Pipelines / CUDA cores
384
512
Power consumption (TDP)
65 Watt
50 Watt
Texture fill rate
28.86
35.97
Memory type
DDR3
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1782 MHz
6000 MHz
Memory bandwidth
28.51 GB/s
112.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12 (11_0)
12 (12_0)
CUDA
3.0
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2.131
FreeSync
-
+