Radeon HD 8790M and Radeon R6 M340DX - video card comparison
Radeon HD 8790M
Radeon R6 M340DX
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Mars XTX
Jet
Market segment
Laptop
Laptop
Release date
November 2012
June 2015
Interface
MXM-A (3.0)
IGP
Supplementary power connectors
None
-
Boost clock speed
900 MHz
1030 MHz
Core clock speed
850 MHz
-
Floating-point performance
691.2 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
950 million
690 million
Pipelines / CUDA cores
384
704
Power consumption (TDP)
unknown
-
Texture fill rate
21.60
24.72
Memory type
GDDR5
DDR3
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 (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