GeForce GT 650M SLI and Radeon RX 640 - video card comparison
GeForce GT 650M SLI
Radeon RX 640
Architecture
Kepler (2012−2018)
Polaris (2016−2019)
GPU code name
N13E-GE
Polaris 12
Market segment
Laptop
Laptop
Release date
March 2012
August 2019
Interface
-
PCIe 3.0 x8
Supplementary power connectors
-
None
Boost clock speed
835 MHz
1218 MHz
Core clock speed
790 MHz
1218 MHz
Manufacturing process technology
28 nm
14 nm
Number of transistors
-
2,200 million
Pipelines / CUDA cores
768
640
Power consumption (TDP)
-
50 Watt
Texture fill rate
-
38.98
Memory type
GDDR5
GDDR5
Maximum RAM amount
2x2 GB
4 GB
Memory bus width
2x 128 Bit
64 Bit
Memory clock speed
4000 MHz
6000 MHz
Memory bandwidth
-
112.0 GB/s
Shared memory
-
-
Display Connectors
-
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
11
12 (12_0)
CUDA
+
-
OpenCL
-
2.0
OpenGL
-
4.6
Shader Model
-
6.4
Vulkan
-
1.2.131
FreeSync
-
+
Optimus
+
-