AMD Radeon HD 6850 X2 vs ATI Radeon HD 4670 AGP

VS

AMD Radeon HD 6850 X2

ATI Radeon HD 4670 AGP

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 1024MB VRAM Radeon HD 4670 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

Released 2 years and 2 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (134.4GB/s vs 25.60GB/s)

640 additional rendering cores

ATI Radeon HD 4670 AGP 's Advantages

Lower TDP (59W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2 +220%

1.536 TFLOPS

Radeon HD 4670 AGP

0.48 TFLOPS

Radeon HD 6850 X2

VS

Radeon HD 4670 AGP

Graphics Card

Sep 2011

Release Date

Jul 2009

Northern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

1050 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

25.60GB/s

Render Config

12

Compute Units

4

-

960

Shading Units

320

48

TMUs

32

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

6.000 GPixel/s

38.40 GTexel/s

Texture Rate

24.00 GTexel/s

-

1.536 TFLOPS

FP32 (float)

480.0 GFLOPS

-

Board Design

254W

TDP

59W

600 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 8-pin

Power Connectors

-

Graphics Processor

Barts

GPU Name

RV730

Barts PRO (215-0798006)

GPU Variant

RV730 XT (215-0719047)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.514 billion

255 mm²

Die Size

146 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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