GeForce GTX 680M SLI and Radeon R9 M485X - video card comparison
GeForce GTX 680M SLI
Radeon R9 M485X
Architecture
Kepler (2012−2018)
GCN 3 (2014−2016)
GPU code name
N13E-GTX
Amethyst
Market segment
Laptop
Laptop
Release date
June 2012
May 2016
Interface
-
MXM-B (3.0)
Supplementary power connectors
-
None
SLI options
+
-
Core clock speed
720 MHz
723 MHz
Floating-point performance
-
2,961 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
-
5,000 million
Pipelines / CUDA cores
2688
2048
Power consumption (TDP)
-
250 Watt
Texture fill rate
-
92.54
Memory type
GDDR5
GDDR5
Maximum RAM amount
2x 4 GB
8 GB
Memory bus width
2x 256 Bit
256 Bit
Memory clock speed
3600 MHz
5000 MHz
Memory bandwidth
-
160.0 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
11
12 (12_0)
CUDA
+
-
OpenCL
-
2.0
OpenGL
-
4.6
Shader Model
-
6.3
Vulkan
-
1.2.131
Optimus
+
-