GeForce GT 640M Mac Edition and UHD Graphics 770 - video card comparison
GeForce GT 640M Mac Edition
UHD Graphics 770
Architecture
Kepler (2012−2018)
Alder Lake
GPU code name
GK107
Alder Lake xG
Market segment
Desktop
Desktop
Release date
February 2013
January 2022
Interface
PCIe 3.0 x16
Ring Bus
Boost clock speed
-
300 MHz
Core clock speed
745 MHz
-
Floating-point performance
572.2 gflops
-
Manufacturing process technology
28 nm
10 nm
Number of transistors
1,270 million
-
Pipelines / CUDA cores
384
32
Power consumption (TDP)
32 Watt
15 Watt
Texture fill rate
23.84
26.40
Memory type
GDDR5
System Shared
Maximum RAM amount
512 MB
System Shared
Memory bus width
64 Bit
System Shared
Memory clock speed
5000 MHz
1550 MHz
Memory bandwidth
40 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (12_1)
CUDA
3.0
-
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.3