ATI Radeon HD 3750 vs ATI Radeon HD 4650

VS

ATI Radeon HD 3750

ATI Radeon HD 4650

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3750 and 256MB VRAM Radeon HD 4650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3750 's Advantages

More VRAM (512GB vs 256GB)

ATI Radeon HD 4650 's Advantages

Larger VRAM bandwidth (22.40GB/s vs 22.18GB/s)

200 additional rendering cores

Lower TDP (48W vs 65W)

Score

Benchmark

FP32 (float)

Radeon HD 3750

0.191 TFLOPS

Radeon HD 4650 +101%

0.384 TFLOPS

Radeon HD 3750

VS

Radeon HD 4650

Graphics Card

Sep 2008

Release Date

Sep 2008

Radeon R600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

693 MHz

Memory Clock

700 MHz

Memory

512MB

Memory Size

256MB

GDDR3

Memory Type

GDDR3

128bit

Memory Bus

128bit

22.18GB/s

Bandwidth

22.40GB/s

Render Config

3

Compute Units

4

-

120

Shading Units

320

8

TMUs

32

4

ROPs

8

-

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

3.184 GPixel/s

Pixel Rate

4.800 GPixel/s

6.368 GTexel/s

Texture Rate

19.20 GTexel/s

-

191.0 GFLOPS

FP32 (float)

384.0 GFLOPS

-

Board Design

65W

TDP

48W

250 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

None

Power Connectors

-

Graphics Processor

RV635

GPU Name

RV730

RV635 PRO (215-0682008)

GPU Variant

RV730 PRO (215-0719056)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.378 billion

Transistors

0.514 billion

135 mm²

Die Size

146 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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