ATI Radeon HD 5970 vs ATI Radeon HD 3870 AGP

VS

ATI Radeon HD 5970

ATI Radeon HD 3870 AGP

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

Main Differences

ATI Radeon HD 5970 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 72.06GB/s)

1280 additional rendering cores

ATI Radeon HD 3870 AGP 's Advantages

Lower TDP (106W vs 294W)

Score

Benchmark

FP32 (float)

ATI Radeon HD 5970 +366%

2.32 TFLOPS

Radeon HD 3870 AGP

0.497 TFLOPS

ATI Radeon HD 5970

VS

Radeon HD 3870 AGP

Graphics Card

Nov 2009

Release Date

Unknown

Evergreen

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

1000 MHz

Memory Clock

1126 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

256bit

Memory Bus

256bit

128.0GB/s

Bandwidth

72.06GB/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

12.43 GPixel/s

58.00 GTexel/s

Texture Rate

12.43 GTexel/s

-

2.320 TFLOPS

FP32 (float)

497.3 GFLOPS

464.0 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

294W

TDP

106W

600 W

Suggested PSU

300 W

2x DVI 1x mini-DisplayPort 1.1

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Hemlock

GPU Name

RV670

Hemlock XT (215-0735075)

GPU Variant

RV670 XT (215-0708005)

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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