ATI Radeon HD 4750 vs ATI Radeon HD 3750

VS

ATI Radeon HD 4750

ATI Radeon HD 3750

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4750 and 512MB VRAM Radeon HD 3750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4750 's Advantages

Released 1 years late

Larger VRAM bandwidth (51.20GB/s vs 22.18GB/s)

520 additional rendering cores

ATI Radeon HD 3750 's Advantages

Lower TDP (65W vs 100W)

Score

Benchmark

FP32 (float)

Radeon HD 4750 +389%

0.934 TFLOPS

Radeon HD 3750

0.191 TFLOPS

Radeon HD 4750

VS

Radeon HD 3750

Graphics Card

Sep 2009

Release Date

Sep 2008

Radeon R700

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

693 MHz

Memory

512MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

51.20GB/s

Bandwidth

22.18GB/s

Render Config

8

Compute Units

3

-

640

Shading Units

120

32

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

128 KB

-

Theoretical Performance

11.68 GPixel/s

Pixel Rate

3.184 GPixel/s

23.36 GTexel/s

Texture Rate

6.368 GTexel/s

-

934.4 GFLOPS

FP32 (float)

191.0 GFLOPS

186.9 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

65W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

RV740

GPU Name

RV635

RV740 PRO

GPU Variant

RV635 PRO (215-0682008)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.826 billion

Transistors

0.378 billion

137 mm²

Die Size

135 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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