UHD Graphics 620 and GeForce GTX 680MX Mac Edition - video card comparison
UHD Graphics 620
GeForce GTX 680MX Mac Edition
Architecture
Gen. 9.5 (2017)
Kepler (2012−2018)
GPU code name
Kaby-Lake-Refresh GT2
GK104
Market segment
Laptop
Desktop
Release date
September 2017
October 2012
Interface
PCIe 3.0 x1
PCIe 3.0 x16
Boost clock speed
1150 MHz
-
Core clock speed
300 MHz
719 MHz
Floating-point performance
-
2,209 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
189 million
3,540 million
Pipelines / CUDA cores
24
1536
Power consumption (TDP)
15 Watt
122 Watt
Texture fill rate
27.60
92.03
Memory type
LPDDR3/DDR4
GDDR5
Maximum RAM amount
32 GB
2 GB
Memory bus width
System Shared
256 Bit
Memory clock speed
System Shared
5000 MHz
Memory bandwidth
-
160.0 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
12 (12_1)
12 (11_0)
CUDA
-
3.0
OpenCL
2.1
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.1.103
1.1.126
Quick Sync
+
-