Radeon R9 270 1024SP and Radeon 620 - video card comparison
Radeon R9 270 1024SP
Radeon 620
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Pitcairn
Polaris 24
Market segment
Desktop
Laptop
Release date
March 2015
August 2019
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin
None
Boost clock speed
925 MHz
1024 MHz
Core clock speed
900 MHz
-
Floating-point performance
1,894 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
1,550 million
Pipelines / CUDA cores
1024
384
Power consumption (TDP)
150 Watt
50 Watt
Texture fill rate
59.20
24.58
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
4800 MHz
2250 MHz
Memory bandwidth
153.6 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_1)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.3
Vulkan
1.2.131
1.2.131