Radeon HD 7870 and Radeon HD 7970M - video card comparison
Passmark - benchmark score Radeon HD 7870 vs Radeon HD 7970M
Radeon HD 7870
4779
Radeon HD 7970M
3635
Radeon HD 7870
Radeon HD 7970M
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Pitcairn XT
Wimbledon XT
Market segment
Desktop
Laptop
Release date
March 2012
May 2012
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
2x 6-pin
None
Core clock speed
1000 MHz
850 MHz
Floating-point performance
-
2,176 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2800 Million
2,800 million
Pipelines / CUDA cores
1280
1280
Power consumption (TDP)
175 Watt
100 Watt
Texture fill rate
80.00
68.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
4800 MHz
4800 MHz
Memory bandwidth
153.6 GB/s
153.6 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
12 (11_1)
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
1.2.131
1.2.131