ATI Radeon HD 3870 AGP vs ATI Radeon HD 3650 AGP

VS

ATI Radeon HD 3870 AGP

ATI Radeon HD 3650 AGP

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 AGP and 512MB VRAM Radeon HD 3650 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 AGP 's Advantages

Larger VRAM bandwidth (72.06GB/s vs 16.00GB/s)

200 additional rendering cores

ATI Radeon HD 3650 AGP 's Advantages

Lower TDP (65W vs 106W)

Score

Benchmark

FP32 (float)

Radeon HD 3870 AGP +185%

0.497 TFLOPS

Radeon HD 3650 AGP

0.174 TFLOPS

Radeon HD 3870 AGP

VS

Radeon HD 3650 AGP

Graphics Card

Unknown

Release Date

Jan 2008

Radeon R600

Generation

Radeon R600(HD 3600)

Desktop

Type

Desktop

AGP 8x

Bus Interface

AGP 8x

Clock Speeds

-

1126 MHz

Memory Clock

500 MHz

Memory

512MB

Memory Size

512MB

GDDR4

Memory Type

DDR2

256bit

Memory Bus

128bit

72.06GB/s

Bandwidth

16.00GB/s

Render Config

4

Compute Units

3

-

320

Shading Units

120

16

TMUs

8

16

ROPs

4

-

256 KB

L2 Cache

128 KB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

2.900 GPixel/s

12.43 GTexel/s

Texture Rate

5.800 GTexel/s

-

497.3 GFLOPS

FP32 (float)

174.0 GFLOPS

99.46 GFLOPS

FP64 (double)

-

Board Design

106W

TDP

65W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

2x DVI1x S-Video

1x 8-pin

Power Connectors

Floppy

Graphics Processor

RV670

GPU Name

RV635

RV670 XT (215-0708005)

GPU Variant

RV635 PRO AGP (215-0682020)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.666 billion

Transistors

0.378 billion

192 mm²

Die Size

135 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3 (full) 4.0 (partial)

OpenGL

3.3

N/A

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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