ATI Radeon HD 3470 vs NVIDIA GeForce GTX 660 Rev. 2

VS

ATI Radeon HD 3470

NVIDIA GeForce GTX 660 Rev. 2

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 3470 and 2GB VRAM GeForce GTX 660 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3470 's Advantages

Lower TDP (30W vs 140W)

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Released 6 years and 8 months late

Boost Clock1032MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (144.2GB/s vs 15.20GB/s)

920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3470

0.064 TFLOPS

GeForce GTX 660 Rev. 2 +2995%

1.981 TFLOPS

Radeon HD 3470

VS

GeForce GTX 660 Rev. 2

Graphics Card

Jan 2008

Release Date

Sep 2014

Radeon R600

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

950 MHz

Memory Clock

1502 MHz

Memory

256MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

64bit

Memory Bus

192bit

15.20GB/s

Bandwidth

144.2GB/s

Render Config

2

Compute Units

-

40

Shading Units

960

4

TMUs

80

4

ROPs

24

-

L1 Cache

16 KB (per SMX)

64 KB

L2 Cache

384 KB

-

Theoretical Performance

3.200 GPixel/s

Pixel Rate

20.64 GPixel/s

3.200 GTexel/s

Texture Rate

82.56 GTexel/s

-

64.00 GFLOPS

FP32 (float)

1.981 TFLOPS

-

FP64 (double)

82.56 GFLOPS

Board Design

30W

TDP

140W

200 W

Suggested PSU

300 W

1x DVI 1x VGA 1x S-Video

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

RV620

GPU Name

GK104

RV620 PRO (215-0670006)

GPU Variant

-

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.181 billion

Transistors

3.54 billion

67 mm²

Die Size

294 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.1

Shader Model

5.1

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