Radeon HD 7870 and Radeon HD 8650M - video card comparison
Radeon HD 7870
Radeon HD 8650M
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Pitcairn XT
-
Market segment
Desktop
Laptop
Release date
March 2012
January 2013
Interface
PCIe 3.0 x16
-
Supplementary power connectors
2x 6-pin
-
Core clock speed
1000 MHz
650 MHz
Manufacturing process technology
28 nm
28 nm
Number of transistors
2800 Million
900 Million
Pipelines / CUDA cores
1280
384
Power consumption (TDP)
175 Watt
-
Texture fill rate
80.00
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
4800 MHz
4500 MHz
Memory bandwidth
153.6 GB/s
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Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
-
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
11.1
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
1.2.131
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