ATI Radeon HD 4750 vs ATI Radeon X1550 PCI

VS

ATI Radeon HD 4750

ATI Radeon X1550 PCI

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4750 and 256MB VRAM Radeon X1550 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4750 's Advantages

Released 2 years and 8 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (51.20GB/s vs 4.256GB/s)

640 additional rendering cores

ATI Radeon X1550 PCI 's Advantages

Lower TDP (27W vs 100W)

Score

Radeon HD 4750

VS

Radeon X1550 PCI

Graphics Card

Sep 2009

Release Date

Jan 2007

Radeon R700

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

800 MHz

Memory Clock

266 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

51.20GB/s

Bandwidth

4.256GB/s

Render Config

8

Compute Units

-

640

Shading Units

-

32

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

-

Theoretical Performance

11.68 GPixel/s

Pixel Rate

1.808 GPixel/s

23.36 GTexel/s

Texture Rate

1.808 GTexel/s

-

934.4 GFLOPS

FP32 (float)

-

186.9 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

27W

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

RV740

GPU Name

RV516

RV740 PRO

GPU Variant

-

TeraScale

Architecture

R500

TSMC

Foundry

UMC

40 nm

Process Size

80 nm

0.826 billion

Transistors

0.107 billion

137 mm²

Die Size

100 mm²

Graphics Features

10.1 (10_1)

DirectX

9.0c (9_3)

3.3

OpenGL

2.1

1.1

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

3.0

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