ATI Radeon HD 3830 vs AMD Radeon HD 6670

VS

ATI Radeon HD 3830

AMD Radeon HD 6670

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 3830 and 1024MB VRAM Radeon HD 6670 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 late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (64.00GB/s vs 26.50GB/s)

160 additional rendering cores

Lower TDP (66W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 3830

0.428 TFLOPS

Radeon HD 6670 +79%

0.768 TFLOPS

Radeon HD 3830

VS

Radeon HD 6670

Graphics Card

Apr 2008

Release Date

Apr 2011

Radeon R600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

828 MHz

Memory Clock

1000 MHz

Memory

256MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

26.50GB/s

Bandwidth

64.00GB/s

Render Config

4

Compute Units

6

-

320

Shading Units

480

16

TMUs

24

16

ROPs

8

-

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

10.69 GPixel/s

Pixel Rate

6.400 GPixel/s

10.69 GTexel/s

Texture Rate

19.20 GTexel/s

-

427.5 GFLOPS

FP32 (float)

768.0 GFLOPS

85.50 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

66W

250 W

Suggested PSU

250 W

No outputs

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

RV670

GPU Name

Turks

RV670 PRO (215-0708003)

GPU Variant

Turks XT (215-0803000)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

0.716 billion

192 mm²

Die Size

118 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3 (full) 4.0 (partial)

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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