GeForce GT 640M and Radeon 530 Mobile GDDR5 - video card comparison
GeForce GT 640M
Radeon 530 Mobile GDDR5
Architecture
Kepler (2012−2018)
GCN 3.0 (2014−2017)
GPU code name
N13P-GS
Weston
Market segment
Laptop
Laptop
Release date
March 2012
April 2017
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Boost clock speed
645 MHz
891 MHz
Core clock speed
Up to 625 MHz
-
CUDA cores
384
-
Floating-point performance
480.0 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,550 million
Pipelines / CUDA cores
384
384
Power consumption (TDP)
32 Watt
50 Watt
Texture fill rate
Up to 20.0 billion/sec
21.38
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128bit
64 Bit
Memory clock speed
1800 - 4000 MHz
3.6 GB/s
Memory bandwidth
Up to 64.0 GB/s
28.8 GB/s
Shared memory
-
-
Display Connectors
No outputs
Portable Device Dependent
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (12_0)
CUDA
+
-
OpenCL
1.1
2.1
OpenGL
4.5
4.6
Shader Model
5.1
6.5 (6.0)
Vulkan
1.1.126
1.2.170
3D Blu-Ray
+
-
Optimus
+
-