NVIDIA GeForce GTX 980 Ti vs NVIDIA GeForce GTX 660

VS

NVIDIA GeForce GTX 980 Ti

NVIDIA GeForce GTX 660

We compared two Desktop platform GPUs: 6GB VRAM GeForce GTX 980 Ti 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 980 Ti 's Advantages

Released 2 years and 9 months late

Boost Clock has increased by 4% (1076MHz vs 1032MHz)

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (336.6GB/s vs 144.2GB/s)

1856 additional rendering cores

NVIDIA GeForce GTX 660 's Advantages

Lower TDP (140W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 980 Ti +205%

6.06 TFLOPS

GeForce GTX 660

1.981 TFLOPS

3DMark Time Spy

GeForce GTX 980 Ti +339%

5754

GeForce GTX 660

1308

Blender

GeForce GTX 980 Ti +390%

544

GeForce GTX 660

111

OctaneBench

GeForce GTX 980 Ti +392%

133

GeForce GTX 660

27

GeForce GTX 980 Ti

VS

GeForce GTX 660

Graphics Card

Jun 2015

Release Date

Sep 2012

GeForce 900

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1000 MHz

Base Clock

980 MHz

1076 MHz

Boost Clock

1032 MHz

1753 MHz

Memory Clock

1502 MHz

Memory

6GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

192bit

336.6GB/s

Bandwidth

144.2GB/s

Render Config

-

2816

Shading Units

960

176

TMUs

80

96

ROPs

24

-

48 KB (per SMM)

L1 Cache

16 KB (per SMX)

3 MB

L2 Cache

384 KB

-

Theoretical Performance

103.3 GPixel/s

Pixel Rate

20.64 GPixel/s

189.4 GTexel/s

Texture Rate

82.56 GTexel/s

-

6.060 TFLOPS

FP32 (float)

1.981 TFLOPS

189.4 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

250W

TDP

140W

600 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 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

GM200

GPU Name

GK106

GM200-310-A1

GPU Variant

GK106-400-A1

Maxwell 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

8 billion

Transistors

2.54 billion

601 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

5.2

CUDA

3.0

6.4

Shader Model

5.1

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