NVIDIA Tesla K40st vs NVIDIA GeForce GTX 660 Ti
GPU Specs Compare
Graphics Card
Release Date
Nov 2013
Aug 2012
Generation
Tesla
GeForce 600
Type
Professional
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1502 MHz
1502 MHz
Base Clock
-
915 MHz
Boost Clock
-
980 MHz
Memory
Memory Size
12GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
192bit
Bandwidth
288.4GB/s
144.2GB/s
Render Config
Shading Units
2880
1344
TMUs
240
112
ROPs
48
24
L1 Cache
16 KB (per SMX)
16 KB (per SMX)
L2 Cache
1536 KB
384 KB
Theoretical Performance
Pixel Rate
34.50 GPixel/s
27.44 GPixel/s
Texture Rate
138.0 GTexel/s
109.8 GTexel/s
FP32 (float)
3.312 TFLOPS
2.634 TFLOPS
FP64 (double)
1104 GFLOPS
109.8 GFLOPS
Graphics Processor
GPU Name
GK110B
GK104
Architecture
Kepler
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
3.54 billion
Die Size
561 mm²
294 mm²
GPU Variant
-
GK104-300-KD-A2
Board Design
TDP
245W
150W
Suggested PSU
550 W
450 W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
-
2x 6-pin
Graphics Features
DirectX
12 (11_1)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.1
CUDA
3.5
3.0
Shader Model
5.1
5.1