GeForce GT 640M Mac Edition and GeForce RTX 4090 Ti - video card comparison
GeForce GT 640M Mac Edition
GeForce RTX 4090 Ti
Architecture
Kepler (2012−2018)
Ada Lovelace
GPU code name
GK107
AD102
Market segment
Desktop
Desktop
Release date
February 2013
2023
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
-
2x 16-pin
Boost clock speed
-
2565 MHz
Core clock speed
745 MHz
-
Floating-point performance
572.2 gflops
-
Manufacturing process technology
28 nm
5 nm
Number of transistors
1,270 million
76,300 million
Pipelines / CUDA cores
384
18176
Power consumption (TDP)
32 Watt
600 Watt
Texture fill rate
23.84
1,457
Memory type
GDDR5
GDDR6X
Maximum RAM amount
512 MB
24 GB
Memory bus width
64 Bit
384 Bit
Memory clock speed
5000 MHz
24 GB/s
Memory bandwidth
40 GB/s
1,152 GB/s
Display Connectors
No outputs
1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI
-
+
DirectX
12 (11_0)
12 Ultimate (12_2)
CUDA
3.0
8.9
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.7
Vulkan
1.1.126
1.3