GeForce GTX 1080 Ti and GeForce GTX 660 Rev. 2 - video card comparison
GeForce GTX 1080 Ti
GeForce GTX 660 Rev. 2
Architecture
Pascal (2016−2021)
Kepler (2012−2018)
GPU code name
GP102
GK104
Market segment
Desktop
Desktop
Release date
February 2017
September 2014
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Recommended system power (PSU)
600 Watt
-
Supplementary power connectors
1x 6-pin + 1x 8-pin
1x 6-pin
SLI options
+
-
Boost clock speed
1600 MHz
1032 MHz
Core clock speed
1481 MHz
980 MHz
Floating-point performance
11,340 gflops
1,981 gflops
Manufacturing process technology
16 nm
28 nm
Number of transistors
11,800 million
3,540 million
Pipelines / CUDA cores
3584
960
Power consumption (TDP)
250 Watt
140 Watt
Maximum GPU temperature
91 °C
-
Texture fill rate
354.4
82.56
Memory type
GDDR5X
GDDR5
Maximum RAM amount
11 GB
2 GB
Memory bus width
352 Bit
192 Bit
Memory clock speed
11000 MHz
6008 MHz
Memory bandwidth
484.4 GB/s
144.2 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort
Multi monitor support
+
-
HDMI
+
+
G-SYNC support
+
-
DirectX
12 (12_1)
12 (11_0)
CUDA
+
3.0
OpenCL
1.2
1.2
OpenGL
4.5
4.6
Shader Model
6.4
5.1
Vulkan
+
1.1.126
Ansel
+
-
GPU Boost
3.0
-