GeForce GTX 680MX Mac Edition and Radeon 550 - video card comparison
GeForce GTX 680MX Mac Edition
Radeon 550
Architecture
Kepler (2012−2018)
GCN 4.0 (2016−2020)
GPU code name
GK104
Lexa
Market segment
Desktop
Desktop
Release date
October 2012
April 2017
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
-
None
Boost clock speed
-
1183 MHz
Core clock speed
719 MHz
1100 MHz
Floating-point performance
2,209 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
3,540 million
2,200 million
Pipelines / CUDA cores
1536
512
Power consumption (TDP)
122 Watt
50 Watt
Texture fill rate
92.03
37.86
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
5000 MHz
7 GB/s
Memory bandwidth
160.0 GB/s
56 GB/s
Display Connectors
No outputs
1x DVI, 1x HDMI 2.0b, 1x DisplayPort 1.4a
HDMI
-
+
DirectX
12 (11_0)
12 (12_0)
CUDA
3.0
-
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.7
Vulkan
1.1.126
1.3