GeForce GT 640M LE and GeForce RTX 3080 Ti - video card comparison
Passmark - benchmark score GeForce GT 640M LE vs GeForce RTX 3080 Ti
GeForce GT 640M LE
720
GeForce RTX 3080 Ti
27990
GeForce GT 640M LE
GeForce RTX 3080 Ti
Architecture
Fermi / Kepler (2012)
Ampere (2020−2022)
GPU code name
N13P-LP
Ampere GA102
Market segment
Laptop
Desktop
Release date
March 2012
September 2020
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 2.0 x16
PCIe 4.0 x16
Supplementary power connectors
-
1x 12-pin
Boost clock speed
-
1667 MHz
Core clock speed
Up to 500 MHz
1370 MHz
CUDA cores
Up to 384
-
Floating-point performance
384.0 gflops
-
Manufacturing process technology
28 nm
8 nm
Number of transistors
585 million
28,300 million
Pipelines / CUDA cores
384
10240
Power consumption (TDP)
20 Watt
350 Watt
Texture fill rate
Up to 16.0 billion/sec
532.8
Memory type
DDR3\DDR5
GDDR6X
Maximum RAM amount
2 GB
12 GB
Memory bus width
128bit
384 Bit
Memory clock speed
1800 - 4000 MHz
19000 MHz
Memory bandwidth
Up to 28.8 GB/s
912.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI, 3x DisplayPort
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 Ultimate (12_2)
CUDA
+
8.6
OpenCL
1.1
3.0
OpenGL
4.5
4.6
Shader Model
5.1
6.6
Vulkan
N/A
1.2
3D Blu-Ray
+
-
Optimus
+
-