Quadro K620 and Tesla C870 - video card comparison
Quadro K620
Tesla C870
Architecture
Maxwell (2014−2018)
Tesla (2006−2010)
GPU code name
GM107
G80
Market segment
Workstation
Workstation
Release date
July 2014
May 2007
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
2x 6-pin
Boost clock speed
1124 MHz
-
Core clock speed
1058 MHz
600 MHz
Floating-point performance
863.2 gflops
345.6 gflops
Manufacturing process technology
28 nm
90 nm
Number of transistors
1,870 million
681 million
Pipelines / CUDA cores
384
128
Power consumption (TDP)
41 Watt
171 Watt
Texture fill rate
26.98
38.40
Memory type
128 Bit
GDDR3
Maximum RAM amount
2 GB
1536 MB
Memory bus width
128 Bit
384 Bit
Memory clock speed
1800 MHz
1600 MHz
Memory bandwidth
Up to 29 GB/s
76.8 GB/s
Display Connectors
DVI-I DP
No outputs
Number of simultaneous displays
4
-
DirectX
12
11.1 (10_0)
CUDA
5.0
+
OpenCL
1.2
1.1
OpenGL
4.5
3.3
Shader Model
5
4.0
Vulkan
+
N/A
3D Vision Pro
+
-
Mosaic
+
-
nView Desktop Management
+
-