Gigabyte GV-R455HM-512I Datasheet download pdf (Page 4)

- 4 -GV-R455 Series Graphics Accelerator

1. Introduction

1.1. Features

• Powered by ATI Radeon

HD 4550 Graphics Processing Unit (GPU)

• Supports PCI Express 2.1

• GV-R455HM-512I supports ATI HyperMemory

technology which enables graphics card

performance by allowing the graphics processing unit (GPU) to dynamically share the

available system memory. The total effective VGA memory differs depending on system

memory.

(Note1)

• Supports DirectX 11

• Supports CrossFireX

• Supports 1 Dual-Link DVI-I connector

• Supports 1 D-Sub connector

• Supports 1 HDMI connector

1.2. Minimum System Requirements

• Hardware

- Intel

Pentium

4/Core

2 or AMD Athlon

/Phenom

- 1 GB or more of system memory for best performance

- Optical drive for software installation (CD-ROM or DVD-ROM drive)

- A power supply that provides at least 400-watt is required. The power supply should be

with a known brand and certified to conform to safety regulations. (For the list of certified

power supplies, go to http://ati.amd.com/certifiedpsu.)

• Operating System

- Windows

7.0

- Windows

Vista

- Windows

XP with Service Pack 2 (SP2)

- Windows

XP Professional x64 Edition

(Note 1) The amount of HyperMemory

will only be shown in the Information Tab found in the Catalyst

ControlCenter. Microsoft System Information program in Windows 7 and Windows Vista lists only

amount of videomemory on Display Adapter under Adapter RAM item.

The amount of HyperMemory available under Windows 7 and Windows Vista is calculated using the

followingformula:

Total HyperMemory = (System Memory- 512) / 2 + Discrete graphics amount.

1GB system memory 2GB system memory 3GB system memory 4GB* system memory

64MB graphics memory HyperMemory=320MB HyperMemory=832MB HyperMemory=1280MB HyperMemory=1792MB

128MB graphics memory HyperMemory=384MB HyperMemory=896MB HyperMemory=1344MB HyperMemory=1856MB

256MB graphics memory HyperMemory=512MB HyperMemory=1024MB HyperMemory=1536MB HyperMemory=2048MB

512MB graphics memory HyperMemory=768MB HyperMemory=1280MB HyperMemory=1792MB HyperMemory=2304MB

1024MB graphics memory HyperMemory=1280MB HyperMemory=1792MB HyperMemory=2304MB HyperMemory=2816MB

2048MB graphics memory HyperMemory=2304MB HyperMemory=2816MB HyperMemory=3328MB HyperMemory=3840MB

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Gigabyte GV-R455HM-512I Datasheet Page 4

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