AMD Radeon HD 6870 X2 vs ATI Radeon X1550 AGP

VS

AMD Radeon HD 6870 X2

ATI Radeon X1550 AGP

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 256MB VRAM Radeon X1550 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 X2 's Advantages

Released 4 years and 6 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (134.4GB/s vs 5.280GB/s)

1120 additional rendering cores

ATI Radeon X1550 AGP 's Advantages

Lower TDP (27W vs 300W)

Score

Radeon HD 6870 X2

VS

Radeon X1550 AGP

Graphics Card

Jul 2011

Release Date

Jan 2007

Northern Islands

Generation

Radeon R500 AGP

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

1050 MHz

Memory Clock

330 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

5.280GB/s

Render Config

14

Compute Units

-

1120

Shading Units

-

56

TMUs

4

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

2.400 GPixel/s

50.40 GTexel/s

Texture Rate

2.400 GTexel/s

-

2.016 TFLOPS

FP32 (float)

-

Board Design

300W

TDP

27W

700 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

-

Power Connectors

None

Graphics Processor

Barts

GPU Name

RV505

Barts XT (215-0798000)

GPU Variant

-

TeraScale 2

Architecture

R500

TSMC

Foundry

TSMC

40 nm

Process Size

90 nm

1.7 billion

Transistors

0.107 billion

255 mm²

Die Size

100 mm²

Graphics Features

11.2 (11_0)

DirectX

9.0c (9_3)

4.4

OpenGL

2.1

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

3.0

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