Tesla K40s and Radeon X850 CrossFire Edition - video card comparison
Tesla K40s
Radeon X850 CrossFire Edition
Architecture
Kepler (2012−2018)
R400 (2004−2008)
GPU code name
GK110B
R480
Market segment
Workstation
Desktop
Release date
November 2013
September 2006
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
-
1x 6-pin
Boost clock speed
876 MHz
-
Core clock speed
745 MHz
520 MHz
Floating-point performance
4,291 gflops
-
Manufacturing process technology
28 nm
130 nm
Number of transistors
7,080 million
160 million
Pipelines / CUDA cores
2880
-
Power consumption (TDP)
245 Watt
-
Texture fill rate
210.2
8.320
Memory type
GDDR5
GDDR3
Maximum RAM amount
12 GB
256 MB
Memory bus width
384 Bit
256 Bit
Memory clock speed
6008 MHz
1080 MHz
Memory bandwidth
288.4 GB/s
34.56 GB/s
Display Connectors
No outputs
2x DVI
DirectX
12 (11_1)
9.0b (9_2)
CUDA
3.5
-
OpenCL
1.2
N/A
OpenGL
4.6
2.0
Shader Model
5.1
-
Vulkan
1.1.126
N/A