Radeon Pro 555X and GeForce GT 640 - video card comparison
Passmark - benchmark score Radeon Pro 555X vs GeForce GT 640
Radeon Pro 555X
3332
GeForce GT 640
1209
Radeon Pro 555X
GeForce GT 640
Architecture
Polaris (2016−2019)
Kepler (2012−2018)
GPU code name
Polaris 21
GK107
Market segment
Mobile workstation
Desktop
Release date
June 2017
June 2012
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
None
None
Core clock speed
855 MHz
902 MHz
Floating-point performance
-
692.7 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
1,270 million
Pipelines / CUDA cores
768
384
Power consumption (TDP)
-
65 Watt
Texture fill rate
43.54
28.86
Memory type
GDDR5
DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
5080 MHz
1782 MHz
Memory bandwidth
81.6 GB/s
28.51 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
12 (12_0)
12 (11_0)
CUDA
-
3.0
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.2.131
1.1.126
FreeSync
+
-