Radeon HD 7870 and Radeon HD 6620G - video card comparison
Passmark - benchmark score Radeon HD 7870 vs Radeon HD 6620G
Radeon HD 7870
4779
Radeon HD 6620G
351
Radeon HD 7870
Radeon HD 6620G
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Pitcairn XT
Llano
Market segment
Desktop
Laptop
Release date
March 2012
June 2011
Interface
PCIe 3.0 x16
IGP
Supplementary power connectors
2x 6-pin
-
Core clock speed
1000 MHz
400 MHz
Manufacturing process technology
28 nm
32 nm
Number of transistors
2800 Million
1000 Million
Pipelines / CUDA cores
1280
400
Power consumption (TDP)
175 Watt
35 Watt
Texture fill rate
80.00
8.880
Memory type
GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
4800 MHz
System Shared
Memory bandwidth
153.6 GB/s
-
Shared memory
-
+
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.2.131
N/A