GeForce RTX 3060 and GeForce GT 640M Mac Edition - video card comparison
GeForce RTX 3060
GeForce GT 640M Mac Edition
Architecture
Ampere (2020−2022)
Kepler (2012−2018)
GPU code name
Ampere GA106
GK107
Market segment
Desktop
Desktop
Release date
January 2021
February 2013
Interface
PCIe 4.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 12-pin
-
Boost clock speed
1777 MHz
-
Core clock speed
1320 MHz
745 MHz
Floating-point performance
-
572.2 gflops
Manufacturing process technology
8 nm
28 nm
Number of transistors
13,250 million
1,270 million
Pipelines / CUDA cores
3584
384
Power consumption (TDP)
170 Watt
32 Watt
Texture fill rate
199.0
23.84
Memory type
GDDR6
GDDR5
Maximum RAM amount
12 GB
512 MB
Memory bus width
192 Bit
64 Bit
Memory clock speed
15000 MHz
5000 MHz
Memory bandwidth
360.0 GB/s
40 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
No outputs
HDMI
+
-
DirectX
12 Ultimate (12_2)
12 (11_0)
CUDA
8.6
3.0
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.5
5.1
Vulkan
1.2
1.1.126