Tesla C870 and Tesla D870 - video card comparison
Tesla C870
Tesla D870
Architecture
Tesla (2006−2010)
Tesla (2006−2010)
GPU code name
G80
G80
Market segment
Workstation
Workstation
Release date
May 2007
May 2007
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
2x 6-pin
-
Core clock speed
600 MHz
600 MHz
Floating-point performance
345.6 gflops
2x 345.6 gflops
Manufacturing process technology
90 nm
90 nm
Number of transistors
681 million
681 million
Pipelines / CUDA cores
128
128
Power consumption (TDP)
171 Watt
520 Watt
Texture fill rate
38.40
38.40
Memory type
GDDR3
GDDR3
Maximum RAM amount
1536 MB
1536 MB
Memory bus width
384 Bit
384 Bit
Memory clock speed
1600 MHz
1600 MHz
Memory bandwidth
76.8 GB/s
76.8 GB/s
Display Connectors
No outputs
No outputs
DirectX
11.1 (10_0)
11.1 (10_0)
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
3.3
3.3
Shader Model
4.0
4.0
Vulkan
N/A
N/A