NVIDIA GeForce GTX 660 Ti vs NVIDIA GeForce GTX 1080 11Gbps
GPU Specs Compare
Graphics Card
Release Date
Aug 2012
Apr 2017
Generation
GeForce 600
GeForce 10
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
915 MHz
1607 MHz
Boost Clock
980 MHz
1733 MHz
Memory Clock
1502 MHz
1376 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5X
Memory Bus
192bit
256bit
Bandwidth
144.2GB/s
352.3GB/s
Render Config
Shading Units
1344
2560
TMUs
112
160
ROPs
24
64
L1 Cache
16 KB (per SMX)
48 KB (per SM)
L2 Cache
384 KB
2 MB
SM Count
-
20
Theoretical Performance
Pixel Rate
27.44 GPixel/s
110.9 GPixel/s
Texture Rate
109.8 GTexel/s
277.3 GTexel/s
FP32 (float)
2.634 TFLOPS
8.873 TFLOPS
FP64 (double)
109.8 GFLOPS
277.3 GFLOPS
FP16 (half)
-
138.6 GFLOPS
Graphics Processor
GPU Name
GK104
GP104
GPU Variant
GK104-300-KD-A2
GP104-410-A1
Architecture
Kepler
Pascal
Foundry
TSMC
TSMC
Process Size
28 nm
16 nm
Transistors
3.54 billion
7.2 billion
Die Size
294 mm²
314 mm²
Board Design
TDP
150W
180W
Suggested PSU
450 W
450 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI1x HDMI 2.03x DisplayPort 1.4a
Power Connectors
2x 6-pin
1x 8-pin
Graphics Features
DirectX
12 (11_0)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.3
CUDA
3.0
6.1
Shader Model
5.1
6.4