NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce GTX 670

VS

NVIDIA GeForce GTX 660 Rev. 2

NVIDIA GeForce GTX 670

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 2GB VRAM GeForce GTX 670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Released 2 years and 4 months late

Boost Clock has increased by 5% (1032MHz vs 980MHz)

Lower TDP (140W vs 170W)

NVIDIA GeForce GTX 670 's Advantages

Larger VRAM bandwidth (192.3GB/s vs 144.2GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

GeForce GTX 670 +32%

2.634 TFLOPS

GeForce GTX 660 Rev. 2

VS

GeForce GTX 670

Graphics Card

Sep 2014

Release Date

May 2012

GeForce 600

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

915 MHz

1032 MHz

Boost Clock

980 MHz

1502 MHz

Memory Clock

1502 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

144.2GB/s

Bandwidth

192.3GB/s

Render Config

-

960

Shading Units

1344

80

TMUs

112

24

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

27.44 GPixel/s

82.56 GTexel/s

Texture Rate

109.8 GTexel/s

-

1.981 TFLOPS

FP32 (float)

2.634 TFLOPS

82.56 GFLOPS

FP64 (double)

109.8 GFLOPS

Board Design

140W

TDP

170W

300 W

Suggested PSU

450 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

GK104

GPU Name

GK104

-

GPU Variant

GK104-325-A2

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

3.54 billion

294 mm²

Die Size

294 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.0

CUDA

3.0

5.1

Shader Model

5.1

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