Radeon HD 5870 Mac Edition and Radeon RX 640 - video card comparison
Radeon HD 5870 Mac Edition
Radeon RX 640
Architecture
TeraScale 2 (2009−2015)
Polaris (2016−2019)
GPU code name
Cypress
Polaris 12
Market segment
Desktop
Laptop
Release date
June 2010
August 2019
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 6-pin
None
Boost clock speed
-
1218 MHz
Core clock speed
850 MHz
1218 MHz
Floating-point performance
2,720.0 gflops
-
Manufacturing process technology
40 nm
14 nm
Number of transistors
2,154 million
2,200 million
Pipelines / CUDA cores
1600
640
Power consumption (TDP)
228 Watt
50 Watt
Texture fill rate
68.00
38.98
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
4780 MHz
6000 MHz
Memory bandwidth
153.0 GB/s
112.0 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
11.2 (11_0)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.4
Vulkan
N/A
1.2.131
FreeSync
-
+