GeForce GT 640 and Iris Xe Graphics G4 - video card comparison
GeForce GT 640
Iris Xe Graphics G4
Architecture
Kepler (2012−2018)
Generation 12.0 (2020)
GPU code name
GK107
Tiger Lake GT1
Market segment
Desktop
Laptop
Release date
June 2012
September 2020
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Supplementary power connectors
None
-
Boost clock speed
-
1100 MHz
Core clock speed
902 MHz
-
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
10 nm
Number of transistors
1,270 million
-
Pipelines / CUDA cores
384
384
Power consumption (TDP)
65 Watt
15 Watt
Texture fill rate
28.86
52.80
Memory type
DDR3
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
128 Bit
System Shared
Memory clock speed
1782 MHz
System Shared
Memory bandwidth
28.51 GB/s
-
Shared memory
-
+
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
12 (12_1)
CUDA
3.0
-
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.1
Quick Sync
-
+