Radeon HD 8870M and Radeon HD 8790M - video card comparison
Passmark - benchmark score Radeon HD 8870M vs Radeon HD 8790M
Radeon HD 8870M
1687
Radeon HD 8790M
1344
Radeon HD 8870M
Radeon HD 8790M
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Venus
Mars XTX
Market segment
Laptop
Laptop
Release date
December 2012
November 2012
Interface
PCIe 3.0 x16
MXM-A (3.0)
Supplementary power connectors
-
None
Boost clock speed
775 MHz
900 MHz
Core clock speed
725 MHz
850 MHz
Floating-point performance
992.0 gflops
691.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
950 million
Pipelines / CUDA cores
640
384
Power consumption (TDP)
-
unknown
Texture fill rate
31.00
21.60
Memory type
GDDR5, DDR3
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4500 MHz
4500 MHz
Memory bandwidth
72 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
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