UHD Graphics 620 and GeForce GT 640M - video card comparison
Passmark - benchmark score UHD Graphics 620 vs GeForce GT 640M
UHD Graphics 620
1061
GeForce GT 640M
943
UHD Graphics 620
GeForce GT 640M
Architecture
Gen. 9.5 (2017)
Kepler (2012−2018)
GPU code name
Kaby-Lake-Refresh GT2
N13P-GS
Market segment
Laptop
Laptop
Release date
September 2017
March 2012
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x1
PCIe 3.0 x16
Boost clock speed
1150 MHz
645 MHz
Core clock speed
300 MHz
Up to 625 MHz
CUDA cores
-
384
Floating-point performance
-
480.0 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
189 million
1,270 million
Pipelines / CUDA cores
24
384
Power consumption (TDP)
15 Watt
32 Watt
Texture fill rate
27.60
Up to 20.0 billion/sec
Memory type
LPDDR3/DDR4
DDR3\GDDR5
Maximum RAM amount
32 GB
2 GB
Memory bus width
System Shared
128bit
Memory clock speed
System Shared
1800 - 4000 MHz
Memory bandwidth
-
Up to 64.0 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
12 (12_1)
12 API
CUDA
-
+
OpenCL
2.1
1.1
OpenGL
4.6
4.5
Shader Model
6.4
5.1
Vulkan
1.1.103
1.1.126
3D Blu-Ray
-
+
Optimus
-
+
Quick Sync
+
-