NVIDIA GeForce GTX 660 vs NVIDIA Tesla K40m
GPU Specs Compare
Graphics Card
Release Date
Sep 2012
Nov 2013
Generation
GeForce 600
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
980 MHz
745 MHz
Boost Clock
1032 MHz
876 MHz
Memory Clock
1502 MHz
1502 MHz
Memory
Memory Size
2GB
12GB
Memory Type
GDDR5
GDDR5
Memory Bus
192bit
384bit
Bandwidth
144.2GB/s
288.4GB/s
Render Config
Shading Units
960
2880
TMUs
80
240
ROPs
24
48
L1 Cache
16 KB (per SMX)
16 KB (per SMX)
L2 Cache
384 KB
1536 KB
Theoretical Performance
Pixel Rate
20.64 GPixel/s
52.56 GPixel/s
Texture Rate
82.56 GTexel/s
210.2 GTexel/s
FP32 (float)
1.981 TFLOPS
5.046 TFLOPS
FP64 (double)
82.56 GFLOPS
1.682 TFLOPS
Graphics Processor
GPU Name
GK106
GK110B
GPU Variant
GK106-400-A1
-
Architecture
Kepler
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.54 billion
7.08 billion
Die Size
221 mm²
561 mm²
Board Design
TDP
140W
245W
Suggested PSU
300 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin
-
Graphics Features
DirectX
12 (11_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.1
CUDA
3.0
3.5
Shader Model
5.1
5.1
📊 Benchmark
3DMark Time Spy
1,194
-
3DMark Time Spy Extreme
260
-
OctaneBench
27
-
Blender
111
-