NVIDIA GeForce GTX 1080 11Gbps vs NVIDIA GeForce GTX 660
We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1080 11Gbps and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 1080 11Gbps 's Advantages
Released 4 years and 7 months late
Boost Clock has increased by 68% (1733MHz vs 1032MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (352.3GB/s vs 144.2GB/s)
1600 additional rendering cores
NVIDIA GeForce GTX 660 's Advantages
Lower TDP (140W vs 180W)
Score
Benchmark
FP32 (float)
GeForce GTX 1080 11Gbps
+347%
8.873 TFLOPS
GeForce GTX 660
1.981 TFLOPS
Graphics Card
Apr 2017
Release Date
Sep 2012
GeForce 10
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1607 MHz
Base Clock
980 MHz
1733 MHz
Boost Clock
1032 MHz
1376 MHz
Memory Clock
1502 MHz
Memory
8GB
Memory Size
2GB
GDDR5X
Memory Type
GDDR5
256bit
Memory Bus
192bit
352.3GB/s
Bandwidth
144.2GB/s
Render Config
-
-
-
20
SM Count
-
2560
Shading Units
960
160
TMUs
80
64
ROPs
24
-
-
-
-
-
-
48 KB (per SM)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
384 KB
-
-
-
Theoretical Performance
110.9 GPixel/s
Pixel Rate
20.64 GPixel/s
277.3 GTexel/s
Texture Rate
82.56 GTexel/s
138.6 GFLOPS
FP16 (half)
-
8.873 TFLOPS
FP32 (float)
1.981 TFLOPS
277.3 GFLOPS
FP64 (double)
82.56 GFLOPS
Board Design
180W
TDP
140W
450 W
Suggested PSU
300 W
1x DVI
1x HDMI 2.0
3x DisplayPort 1.4a
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 8-pin
Power Connectors
1x 6-pin
Graphics Processor
GP104
GPU Name
GK106
GP104-410-A1
GPU Variant
GK106-400-A1
Pascal
Architecture
Kepler
TSMC
Foundry
TSMC
16 nm
Process Size
28 nm
7.2 billion
Transistors
2.54 billion
314 mm²
Die Size
221 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
6.1
CUDA
3.0
6.4
Shader Model
5.1
