ATI Radeon HD 5970 vs ATI Radeon HD 3870 X2

VS

ATI Radeon HD 5970

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 1024MB VRAM ATI Radeon HD 5970 and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5970 's Advantages

Released 1 years and 10 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 57.66GB/s)

1280 additional rendering cores

ATI Radeon HD 3870 X2 's Advantages

Lower TDP (165W vs 294W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5970 +339%

2.32 TFLOPS

Radeon HD 3870 X2

0.528 TFLOPS

ATI Radeon HD 5970

VS

Radeon HD 3870 X2

Graphics Card

Nov 2009

Release Date

Jan 2008

Evergreen

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

901 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

57.66GB/s

Render Config

20

Compute Units

4

-

1600

Shading Units

320

80

TMUs

16

32

ROPs

16

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

13.20 GPixel/s

58.00 GTexel/s

Texture Rate

13.20 GTexel/s

-

2.320 TFLOPS

FP32 (float)

528.0 GFLOPS

464.0 GFLOPS

FP64 (double)

105.6 GFLOPS

Board Design

294W

TDP

165W

600 W

Suggested PSU

450 W

2x DVI 1x mini-DisplayPort 1.1

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Hemlock

GPU Name

R680

Hemlock XT (215-0735075)

GPU Variant

R680 XT (215-0708017)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.154 billion

Transistors

0.666 billion

334 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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