Iris Graphics 540 and GeForce GT 640 - video card comparison
Passmark - benchmark score Iris Graphics 540 vs GeForce GT 640
Iris Graphics 540
1296
GeForce GT 640
1210
Iris Graphics 540
GeForce GT 640
Architecture
Gen. 9 Skylake (2015−2016)
Kepler (2012−2018)
GPU code name
Skylake GT3e
GK107
Market segment
Laptop
Desktop
Release date
September 2015
June 2012
Interface
PCIe 3.0 x1
PCIe 3.0 x16
Supplementary power connectors
-
None
Boost clock speed
1050 MHz
-
Core clock speed
300 MHz
902 MHz
Floating-point performance
-
692.7 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
189 million
1,270 million
Pipelines / CUDA cores
48
384
Power consumption (TDP)
15 Watt
65 Watt
Texture fill rate
50.40
28.86
Memory type
eDRAM
DDR3
Maximum RAM amount
64 MB
2 GB
Memory bus width
eDRAM + 64/128 Bit
128 Bit
Memory clock speed
System Shared
1782 MHz
Memory bandwidth
-
28.51 GB/s
Shared memory
+
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x DisplayPort
HDMI
-
+
DirectX
12 (12_1)
12 (11_0)
CUDA
-
3.0
OpenCL
2.1
1.2
OpenGL
4.6
4.6
Shader Model
6.4
5.1
Vulkan
1.1.97
1.1.126
Quick Sync
+
-