Radeon HD 8790M and Radeon HD 6490M - video card comparison
Passmark - benchmark score Radeon HD 8790M vs Radeon HD 6490M
Radeon HD 8790M
1344
Radeon HD 6490M
388
Radeon HD 8790M
Radeon HD 6490M
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Mars XTX
Seymour XT
Market segment
Laptop
Laptop
Release date
November 2012
January 2011
Interface
MXM-A (3.0)
PCIe 2.0 x16
Supplementary power connectors
None
-
Boost clock speed
900 MHz
-
Core clock speed
850 MHz
700 / 750 / 800 MHz
Floating-point performance
691.2 gflops
256 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
950 million
370 million
Pipelines / CUDA cores
384
160
Power consumption (TDP)
unknown
-
Texture fill rate
21.60
6.400
Memory type
GDDR5
DDR3/GDDR5
Maximum RAM amount
2 GB
512 MB
Memory bus width
128 Bit
64 Bit
Memory clock speed
4500 MHz
800 MHz
Memory bandwidth
64 GB/s
25.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
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