ATI Radeon HD 3850 AGP vs ATI Radeon HD 4650 AGP

VS

ATI Radeon HD 3850 AGP

ATI Radeon HD 4650 AGP

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3850 AGP and 512MB VRAM Radeon HD 4650 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3850 AGP 's Advantages

Larger VRAM bandwidth (52.99GB/s vs 12.80GB/s)

ATI Radeon HD 4650 AGP 's Advantages

Released 8 months late

Lower TDP (48W vs 75W)

Score

Benchmark

FP32 (float)

Radeon HD 3850 AGP +11%

0.428 TFLOPS

Radeon HD 4650 AGP

0.384 TFLOPS

Radeon HD 3850 AGP

VS

Radeon HD 4650 AGP

Graphics Card

Jan 2008

Release Date

Sep 2008

Radeon R600

Generation

Radeon R700

Desktop

Type

Desktop

AGP 8x

Bus Interface

AGP 8x

Clock Speeds

-

828 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

DDR2

256bit

Memory Bus

128bit

52.99GB/s

Bandwidth

12.80GB/s

Render Config

4

Compute Units

4

-

320

Shading Units

320

16

TMUs

32

16

ROPs

8

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

10.69 GPixel/s

Pixel Rate

4.800 GPixel/s

10.69 GTexel/s

Texture Rate

19.20 GTexel/s

-

427.5 GFLOPS

FP32 (float)

384.0 GFLOPS

85.50 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

48W

250 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 8-pin

Power Connectors

-

Graphics Processor

RV670

GPU Name

RV730

RV670 PRO (215-0708003)

GPU Variant

RV730 PRO (215-0719056)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.666 billion

Transistors

0.514 billion

192 mm²

Die Size

146 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3 (full) 4.0 (partial)

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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