NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce GTX 970

VS

NVIDIA GeForce GTX 660 Rev. 2 NVIDIA GeForce GTX 970

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 4GB VRAM GeForce GTX 970 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

Lower TDP (140W vs 148W)

NVIDIA GeForce GTX 970 's Advantages

Boost Clock has increased by 14% (1178MHz vs 1032MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (224.4GB/s vs 144.2GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

GeForce GTX 970 +97%

3.92 TFLOPS

GeForce GTX 660 Rev. 2

VS

GeForce GTX 970

Graphics Card

Sep 2014

Release Date

Sep 2014

GeForce 600

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

1050 MHz

1032 MHz

Boost Clock

1178 MHz

1502 MHz

Memory Clock

1753 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

144.2GB/s

Bandwidth

224.4GB/s

Render Config

-

SM Count

-

Compute Units

-

960

Shading Units

1664

80

TMUs

104

24

ROPs

56

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

48 KB (per SMM)

384 KB

L2 Cache

2 MB

Theoretical Performance

20.64 GPixel/s

Pixel Rate

65.97 GPixel/s

82.56 GTexel/s

Texture Rate

122.5 GTexel/s

-

FP16 (half)

-

1.981 TFLOPS

FP32 (float)

3.920 TFLOPS

82.56 GFLOPS

FP64 (double)

122.5 GFLOPS

Graphics Processor

GK104

GPU Name

GM204

-

GPU Variant

GM204-200-A1

Kepler

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

5.2 billion

294 mm²

Die Size

398 mm²

Board Design

140W

TDP

148W

300 W

Suggested PSU

300 W

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

Outputs

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

1x 6-pin

Power Connectors

2x 6-pin

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

5.2

5.1

Shader Model

6.4

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