Home GPU Comparison NVIDIA GeForce GTX 1080 vs NVIDIA GeForce GTX 660 Ti

NVIDIA GeForce GTX 1080 vs NVIDIA GeForce GTX 660 Ti

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1080 and 2GB VRAM GeForce GTX 660 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 's Advantages
Released 3 years and 9 months late
Boost Clock has increased by 77% (1733MHz vs 980MHz)
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (320.3GB/s vs 144.2GB/s)
1216 additional rendering cores
NVIDIA GeForce GTX 660 Ti 's Advantages
Lower TDP (150W vs 180W)

Score

Benchmark

FP32 (float)
GeForce GTX 1080 +236%
8.873 TFLOPS
GeForce GTX 660 Ti
2.634 TFLOPS
3DMark Time Spy
GeForce GTX 1080 +363%
7534
GeForce GTX 660 Ti
1627
VS

Graphics Card

May 2016
Release Date
Aug 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
915 MHz
1733 MHz
Boost Clock
980 MHz
1251 MHz
Memory Clock
1502 MHz

Memory

8GB
Memory Size
2GB
GDDR5X
Memory Type
GDDR5
256bit
Memory Bus
192bit
320.3GB/s
Bandwidth
144.2GB/s

Render Config

20
SM Count
-
-
Compute Units
-
2560
Shading Units
1344
160
TMUs
112
64
ROPs
24
-
Tensor Cores
-
-
RT Cores
-
48 KB (per SM)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
384 KB

Theoretical Performance

110.9 GPixel/s
Pixel Rate
27.44 GPixel/s
277.3 GTexel/s
Texture Rate
109.8 GTexel/s
138.6 GFLOPS
FP16 (half)
-
8.873 TFLOPS
FP32 (float)
2.634 TFLOPS
277.3 GFLOPS
FP64 (double)
109.8 GFLOPS

Graphics Processor

GP104
GPU Name
GK104
GP104-400-A1
GPU Variant
GK104-300-KD-A2
Pascal
Architecture
Kepler
TSMC
Foundry
TSMC
16 nm
Process Size
28 nm
7.2 billion
Transistors
3.54 billion
314 mm²
Die Size
294 mm²

Board Design

180W
TDP
150W
450 W
Suggested PSU
450 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
2x 6-pin

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

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