Radeon Pro 555X and GeForce GT 640M LE - video card comparison
Passmark - benchmark score Radeon Pro 555X vs GeForce GT 640M LE
Radeon Pro 555X
3332
GeForce GT 640M LE
720
Radeon Pro 555X
GeForce GT 640M LE
Architecture
Polaris (2016−2019)
Fermi / Kepler (2012)
GPU code name
Polaris 21
N13P-LP
Market segment
Mobile workstation
Laptop
Release date
June 2017
March 2012
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
-
Core clock speed
855 MHz
Up to 500 MHz
CUDA cores
-
Up to 384
Floating-point performance
-
384.0 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
3,000 million
585 million
Pipelines / CUDA cores
768
384
Power consumption (TDP)
-
20 Watt
Texture fill rate
43.54
Up to 16.0 billion/sec
Memory type
GDDR5
DDR3\DDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128bit
Memory clock speed
5080 MHz
1800 - 4000 MHz
Memory bandwidth
81.6 GB/s
Up to 28.8 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
12 (12_0)
12 API
CUDA
-
+
OpenCL
2.0
1.1
OpenGL
4.6
4.5
Shader Model
6.4
5.1
Vulkan
1.2.131
N/A
3D Blu-Ray
-
+
FreeSync
+
-
Optimus
-
+