Logo

GeForce GTX 1080 and GeForce GTX 660 - video card comparison


Passmark - benchmark score GeForce GTX 1080 vs GeForce GTX 660

GeForce GTX 1080
16002
GeForce GTX 660
4119

GeForce GTX 1080

GeForce GTX 660


Architecture
Pascal (2016−2021)
Kepler (2012−2018)

GPU code name
Pascal GP104
GK106

Market segment
Desktop
Desktop

Release date
May 2016
September 2012

Bus support
PCIe 3.0
PCI Express 3.0

Interface
PCIe 3.0 x16
PCIe 3.0 x16

Recommended system power (PSU)
500 Watt
-

Supplementary power connectors
8-pin
One 6-pin

SLI options
+
+

Boost clock speed
1733 MHz
1033 MHz

Core clock speed
1607 MHz
980 MHz

CUDA cores
2560
960

Floating-point performance
8,873 gflops
1,981 gflops

Manufacturing process technology
16 nm
28 nm

Number of transistors
7,200 million
2,540 million

Pipelines / CUDA cores
2560
960

Power consumption (TDP)
180 Watt
140 Watt

Maximum GPU temperature
94 °C
-

Texture fill rate
277.3
78.4 billion/sec

Memory type
GDDR5X
GDDR5

Maximum RAM amount
8 GB
2 GB

Memory bus width
256 Bit
192-bit GDDR5

Memory clock speed
10 GB/s
6.0 GB/s

Memory bandwidth
320 GB/s
144.2 GB/s

Shared memory
-
-

Display Connectors
DP 1.42, HDMI 2.0b, DL-DVI
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort

Multi monitor support
+
4 displays

HDMI
+
+

HDCP
-
+

Maximum VGA resolution
-
2048x1536

G-SYNC support
+
-

Audio input for HDMI
-
Internal

DirectX
12 (12_1)
12 (11_0)

CUDA
+
+

OpenCL
1.2
1.2

OpenGL
4.5
4.3

Shader Model
6.4
5.1

Vulkan
1.2.131
1.1.126

3D Blu-Ray
-
+

3D Gaming
-
+

3D Vision
-
+

Ansel
+
-

GPU Boost
3.0
-

VR Ready
+
-