GeForce GTX 680M and Radeon RX 550X Mobile - video card comparison
GeForce GTX 680M
Radeon RX 550X Mobile
Architecture
Kepler (2012−2018)
Polaris (2016−2019)
GPU code name
N13E-GTX
Polaris 12
Market segment
Laptop
Laptop
Release date
June 2012
January 2019
Bus support
PCI Express 3.0
-
Interface
MXM-B (3.0)
PCIe 3.0 x8
Supplementary power connectors
None
-
SLI options
+
-
Boost clock speed
758 MHz
1287 MHz
Core clock speed
720 MHz
1176 MHz
CUDA cores
1344
-
Floating-point performance
2,038 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
3,540 million
2,200 million
Pipelines / CUDA cores
1344
640
Power consumption (TDP)
100 Watt
50 Watt
Texture fill rate
80.6 billion/sec
51.48
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1800 MHz
7000 MHz
Memory bandwidth
115.2 GB/s
96 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 API
12 (12_0)
CUDA
+
-
OpenCL
1.1
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2.131
FreeSync
-
+
Optimus
+
-