
Tesla K20c and Iris Plus Graphics 645 - video card comparison
Tesla K20c
Iris Plus Graphics 645
Architecture
Kepler (2012−2018)
Gen. 9.5 Coffee Lake (2019)
GPU code name
GK110
Kaby Lake GT3e
Market segment
Workstation
Laptop
Release date
November 2012
July 2019
Interface
PCIe 2.0 x16
PCIe 3.0 x1
Supplementary power connectors
1x 6-pin + 1x 8-pin
-
Boost clock speed
-
1150 MHz
Core clock speed
706 MHz
300 MHz
Floating-point performance
3,524 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
7,080 million
-
Pipelines / CUDA cores
2496
48
Power consumption (TDP)
225 Watt
15 Watt
Texture fill rate
146.8
50.40
Memory type
GDDR5
DDR3, DDR4
Maximum RAM amount
5 GB
System Shared
Memory bus width
320 Bit
System Shared
Memory clock speed
5200 MHz
System Shared
Memory bandwidth
208.0 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (12_1)
CUDA
3.5
-
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.1.103
Quick Sync
-
+