Radeon HD 8790M and Radeon R2 Graphics - video card comparison
Radeon HD 8790M
Radeon R2 Graphics
Architecture
GCN (2011−2017)
GCN 2.0 (2013−2017)
GPU code name
Mars XTX
Beema
Market segment
Laptop
Desktop
Release date
November 2012
February 2015
Interface
MXM-A (3.0)
IGP
Supplementary power connectors
None
-
Boost clock speed
900 MHz
-
Core clock speed
850 MHz
351 MHz
Floating-point performance
691.2 gflops
179.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
950 million
930 million
Pipelines / CUDA cores
384
128
Power consumption (TDP)
unknown
15 Watt
Texture fill rate
21.60
2.808
Memory type
GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
128 Bit
System Shared
Memory clock speed
4500 MHz
System Shared
Memory bandwidth
64 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_1)
12 (12_0)
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.3
Vulkan
1.2.131
1.2.131