GeForce GT 645M and Radeon 520 - video card comparison
Passmark - benchmark score GeForce GT 645M vs Radeon 520
GeForce GT 645M
957
Radeon 520
811
GeForce GT 645M
Radeon 520
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
N13P-GS
Oland
Market segment
Laptop
Laptop
Release date
March 2012
March 2017
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
-
None
Core clock speed
Up to 710 MHz
1030 MHz
CUDA cores
384
-
Floating-point performance
544.5 gflops
659.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,040 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
32 Watt
50 Watt
Texture fill rate
22.7 billion/sec
20.60
Memory type
DDR3\GDDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128bit
64 Bit
Memory clock speed
1800 MHz
2250 MHz
Memory bandwidth
Up to 64.0 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12.0
CUDA
+
-
OpenCL
1.1
1.2
OpenGL
4.5
4.6
Shader Model
5.1
5.0
Vulkan
1.1.126
+
3D Blu-Ray
+
-
Optimus
+
-