ATI Radeon HD 4580 vs ATI Radeon X1550 PCI

VS

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4580 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 4580 's Advantages

Released 4 years and 10 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (22.18GB/s vs 4.256GB/s)

120 additional rendering cores

ATI Radeon X1550 PCI 's Advantages

Lower TDP (27W vs 65W)

Score

Radeon HD 4580

VS

Radeon X1550 PCI

Graphics Card

Nov 2011

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

-

Base Clock

-

Boost Clock

-

693 MHz

Memory Clock

266 MHz

Memory

512MB

Memory Size

256MB

GDDR3

Memory Type

DDR2

128bit

Memory Bus

64bit

22.18GB/s

Bandwidth

4.256GB/s

Render Config

-

SM Count

-

3

Compute Units

-

120

Shading Units

-

8

TMUs

4

ROPs

4

-

Tensor Cores

-

RT Cores

-

L1 Cache

-

128 KB

L2 Cache

-

Theoretical Performance

3.184 GPixel/s

Pixel Rate

1.808 GPixel/s

6.368 GTexel/s

Texture Rate

1.808 GTexel/s

-

FP16 (half)

-

191.0 GFLOPS

FP32 (float)

-

FP64 (double)

-

Graphics Processor

RV635

GPU Name

RV516

RV635 PRO (215-0682008)

GPU Variant

-

TeraScale

Architecture

R500

TSMC

Foundry

UMC

55 nm

Process Size

80 nm

0.378 billion

Transistors

0.107 billion

135 mm²

Die Size

100 mm²

Board Design

65W

TDP

27W

250 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Features

10.1 (10_1)

DirectX

9.0c (9_3)

3.3

OpenGL

2.1

N/A

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

3.0

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