GeForce GTX 680MX and Radeon HD 8790M - video card comparison
Passmark - benchmark score GeForce GTX 680MX vs Radeon HD 8790M
GeForce GTX 680MX
4266
Radeon HD 8790M
1344
GeForce GTX 680MX
Radeon HD 8790M
Architecture
Kepler (2012−2018)
GCN (2011−2017)
GPU code name
-
Mars XTX
Market segment
Laptop
Laptop
Release date
October 2012
November 2012
Bus support
PCI Express 3.0
-
Interface
-
MXM-A (3.0)
Supplementary power connectors
-
None
SLI options
+
-
Boost clock speed
-
900 MHz
Core clock speed
720 MHz
850 MHz
CUDA cores
1536
-
Floating-point performance
-
691.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3540 Million
950 million
Pipelines / CUDA cores
1536
384
Power consumption (TDP)
122 Watt
unknown
Texture fill rate
92.2 billion/sec
21.60
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
2500 MHz
4500 MHz
Memory bandwidth
160 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
12 API
12 (11_1)
CUDA
+
-
OpenCL
1.1
1.2
OpenGL
4.5
4.6
Shader Model
-
5.1
Vulkan
-
1.2.131
3D Vision
+
-
Optimus
+
-