AMD Radeon HD 6670 vs ATI Radeon HD 3690

VS

AMD Radeon HD 6670

ATI Radeon HD 3690

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6670 and 256MB VRAM Radeon HD 3690 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6670 's Advantages

Released 3 years and 1 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (64.00GB/s vs 26.56GB/s)

160 additional rendering cores

Lower TDP (66W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 6670 +79%

0.768 TFLOPS

Radeon HD 3690

0.429 TFLOPS

Radeon HD 6670

VS

Radeon HD 3690

Graphics Card

Apr 2011

Release Date

Mar 2008

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

830 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

26.56GB/s

Render Config

6

Compute Units

4

-

480

Shading Units

320

24

TMUs

16

8

ROPs

16

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

128 KB

-

Theoretical Performance

6.400 GPixel/s

Pixel Rate

10.72 GPixel/s

19.20 GTexel/s

Texture Rate

10.72 GTexel/s

-

768.0 GFLOPS

FP32 (float)

428.8 GFLOPS

-

FP64 (double)

85.76 GFLOPS

Board Design

66W

TDP

75W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

Turks

GPU Name

RV670

Turks XT (215-0803000)

GPU Variant

RV670 PRO (215-0708003)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.716 billion

Transistors

0.666 billion

118 mm²

Die Size

192 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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