GeForce GT 640M and Radeon 625 - video card comparison
Passmark - benchmark score GeForce GT 640M vs Radeon 625
GeForce GT 640M
946
Radeon 625
1107
GeForce GT 640M
Radeon 625
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
N13P-GS
Polaris 24
Market segment
Laptop
Laptop
Release date
March 2012
August 2019
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
-
None
Boost clock speed
645 MHz
1024 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
24.58
Memory type
DDR3\GDDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
128bit
64 Bit
Memory clock speed
1800 - 4000 MHz
2250 MHz
Memory bandwidth
Up to 64.0 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (12_0)
CUDA
+
-
OpenCL
1.1
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.3
Vulkan
1.1.126
1.2.131
3D Blu-Ray
+
-
Optimus
+
-