This is very good Vide card with 512MB and 128 bit.

Specifications

Interface:-PCI, PCI Express
Card Chipset:-ATI
Installed Memory:-512MB
Memory Interface:-128 bit
System Requirements:-PCI Express based PC is required with one X16 lane graphics slot available on the motherboard 500 Watt or greater power supply with two 75W 6-pin PCI Express power connectors recommended Certified power supplies are recommended Minimum 1GB of system memory Installation software requires CD-ROM drive DVD playblack requires DVD drive Blu-ray playback requires Blu-ray drive For a complete ATI CrossFireX system, a second ATI Radeon HD 4890 graphics card.
Number of Stream Processors:-640
Memory Technology:-DDR5 SDRAM
Shader Model:-4.1
Memory Speed:-3200 MHz
Processor Speed:-750 MHz
Standard Memory:-512 MB
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