ATI Radeon HD 4580: GPU Specs & Benchmarks

The Radeon HD 4580 is a graphics card by ATI, built on the 55 nm process and based on the RV635 graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

RV635

Model number

RV635 PRO
(215-0682008)

Architecture

TeraScale

Foundry

TSMC

Process Size

55 nm

Transistors

378 million

Die Size

135 mm²

Graphics Card

Release Date

Nov 20th, 2011

Family

Radeon R700
(HD 4500)

Production

End-of-life

Predecessor

Radeon R600

Bus Interface

PCIe 2.0 x16

Memory

Memory Size

512 MB

Memory Type

GDDR3

Memory Bus

128 bit

Bandwidth

22.18 GB/s

Performance

Pixel fillrate

3.184 GPixel/s

Texture fillrate

6.368 GTexel/s

FP32 (float) performance

191.0 GFLOPS

Clock Speeds

Memory Clock

693 MHz
1386 Mbps effective

GPU Clock

796 MHz

Render Config

Shading Units

120

TMUs

8

ROPs

4

Compute Units

3

L2 Cache

128 KB

Board Design

Slot Width

Single-slot

Length

190 mm
7.5 inches

Thermal design power (TDP)

65 W

Suggested PSU

250 W

Display Connectors

2x DVI
1x S-Video

Power Connectors

None

API support

DirectX

10.1 (10_1)

OpenGL

3.3

OpenCL

N/A

Vulkan

N/A

Shader Model

4.1