AMD Radeon HD 6870 X2 vs ATI Radeon X1950 GT

VS

AMD Radeon HD 6870 X2

ATI Radeon X1950 GT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 256MB VRAM Radeon X1950 GT 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 38.40GB/s)

1120 additional rendering cores

ATI Radeon X1950 GT 's Advantages

Lower TDP (57W vs 300W)

Score

Radeon HD 6870 X2

VS

Radeon X1950 GT

Graphics Card

Jul 2011

Release Date

Jan 2007

Northern Islands

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

600 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

38.40GB/s

Render Config

14

Compute Units

-

1120

Shading Units

-

56

TMUs

12

32

ROPs

12

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

6.000 GPixel/s

50.40 GTexel/s

Texture Rate

6.000 GTexel/s

-

2.016 TFLOPS

FP32 (float)

-

Board Design

300W

TDP

57W

700 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

-

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

RV570

Barts XT (215-0798000)

GPU Variant

RV570 XL

TeraScale 2

Architecture

R500

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.7 billion

Transistors

0.33 billion

255 mm²

Die Size

230 mm²

Graphics Features

11.2 (11_0)

DirectX

9.0c (9_3)

4.4

OpenGL

2.1 (full) 3.0 (partial)

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

3.0

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