NVIDIA GeForce GTX 660 vs AMD Radeon HD 7670 OEM

VS

NVIDIA GeForce GTX 660 AMD Radeon HD 7670 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 512MB VRAM Radeon HD 7670 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages

Released 8 months late

Boost Clock1032MHz

Larger VRAM bandwidth (144.2GB/s vs 64.00GB/s)

480 additional rendering cores

AMD Radeon HD 7670 OEM 's Advantages

Lower TDP (66W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 +157%

1.981 TFLOPS

Radeon HD 7670 OEM

0.768 TFLOPS

GeForce GTX 660

VS

Radeon HD 7670 OEM

Graphics Card

Sep 2012

Release Date

Jan 2012

GeForce 600

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

Compute Units

6

960

Shading Units

480

80

TMUs

24

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

256 KB

Theoretical Performance

20.64 GPixel/s

Pixel Rate

6.400 GPixel/s

82.56 GTexel/s

Texture Rate

19.20 GTexel/s

-

FP16 (half)

-

1.981 TFLOPS

FP32 (float)

768.0 GFLOPS

82.56 GFLOPS

FP64 (double)

-

Graphics Processor

GK106

GPU Name

Turks

GK106-400-A1

GPU Variant

Turks XT (215-0803000)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.54 billion

Transistors

0.716 billion

221 mm²

Die Size

118 mm²

Board Design

140W

TDP

66W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x DisplayPort 1.1 1x VGA

1x 6-pin

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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