ATI Radeon HD 5870 vs ATI Radeon HD 3870 AGP

VS

ATI Radeon HD 5870

ATI Radeon HD 3870 AGP

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5870 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 5870 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (153.6GB/s vs 72.06GB/s)

1280 additional rendering cores

ATI Radeon HD 3870 AGP 's Advantages

Lower TDP (106W vs 188W)

Score

Benchmark

FP32 (float)

Radeon HD 5870 +447%

2.72 TFLOPS

Radeon HD 3870 AGP

0.497 TFLOPS

Radeon HD 5870

VS

Radeon HD 3870 AGP

Graphics Card

Sep 2009

Release Date

Unknown

Evergreen

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

1200 MHz

Memory Clock

1126 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

256bit

Memory Bus

256bit

153.6GB/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

27.20 GPixel/s

Pixel Rate

12.43 GPixel/s

68.00 GTexel/s

Texture Rate

12.43 GTexel/s

-

2.720 TFLOPS

FP32 (float)

497.3 GFLOPS

544.0 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

188W

TDP

106W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

Cypress

GPU Name

RV670

Cypress XT (215-0735033)

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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