Radeon 520 and Radeon RX 640 - video card comparison
Passmark - benchmark score Radeon 520 vs Radeon RX 640
Radeon 520
811
Radeon RX 640
2020
Radeon 520
Radeon RX 640
Architecture
GCN 1.0 (2012−2020)
Polaris (2016−2019)
GPU code name
Oland
Polaris 12
Market segment
Laptop
Laptop
Release date
March 2017
August 2019
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Supplementary power connectors
None
None
Boost clock speed
-
1218 MHz
Core clock speed
1030 MHz
1218 MHz
Floating-point performance
659.2 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,040 million
2,200 million
Pipelines / CUDA cores
320
640
Power consumption (TDP)
50 Watt
50 Watt
Texture fill rate
20.60
38.98
Memory type
DDR3, GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
64 Bit
64 Bit
Memory clock speed
2250 MHz
6000 MHz
Memory bandwidth
16 GB/s
112.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
+
+
DirectX
12.0
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.0
6.4
Vulkan
+
1.2.131
FreeSync
-
+