What are usual maximum output frequencies on computer sound cards?

Best graphics card for my single core, AMD athlon computer, for under $100? help!?

• I need some help with my computer, it's running slow when I try to open videos and multiple web pages with heavy graphics. Since it's older I also have some compatibility issues. I'm wondering if I should get a 512mb or a 1gb card, and which would be best for me. I'm currently looking at some XFX cards, specifically XFX ATI RADEON HD 4650 1GB DDR2 PCI Express Graphics Card. Does anyone know if it would work on my computer? Any advice is appreciated, thanks. Here are my current specs: HP Pavilion a1330n Key Features Processor AMD Athlon 64 2.4 GHz Installed Memory 2 GB (DDR SDRAM) Operating System Microsoft Windows XP Media Center Edition Recommended Use Home Use, Home theater Use Processor Processor Type AMD Athlon 64 Processor Speed 2.4 GHz Processor Manufacturer AMD Socket Type Socket 939 Motherboard Bus Speed 2000 MHz Memory RAM Technology DDR SDRAM Installed RAM 2 GB Max Supported RAM 4 GB Number of Memory Slots 4 x 184 Pin DIMMs Supported RAM Speeds 400 MHz Installed Cache Memory 512 KB Technical Features Integrated Input/Output Ports USB 2.0 x 7 • FireWire (IEEE1394a) x 2 • RJ45 Lan Port x 1 • PS/2 Mouse x 1 • PS/2 Keyboard x 1 • Parallel Port (ECP/EPP/SPP) x 1 • RJ11 Phone Jack x 1 (Input) Expansion Bays 2 x 5.25" (External Access) • 1 x 3.5" (Internal Access) • 1 x 3.5" (External Access) Expansion Slots PCI Express x16 x 1 • PCI x 3 Memory Card Slots Memory Stick • SmartMedia • Memory Stick PRO • xD Picture Card • Micro Drive Memory Stick • MultiMediaCard • SD Memory Card • CompactFlash Card type I • CompactFlash Card type II Other Features 9-in-1 Memory Card Reader Hard Drive Hard Drive Capacity 250 GB Hard Drive Interface Serial ATA Hard Drive Rotation Speed 7,200 RPM CD / DVD Optical Drive Type DVD±RW Dual Layer Optical Drive Read Speed 16x (DVD) • 40x (CD) Optical Drive Write Speed 40x (CD-R) • 8x (DVD-R) • 16x (DVD+R) • 2.4x (DVD+R Dual Layer) Optical Drive ReWrite Speed 24x (CD-RW) • 4x (DVD+RW) • 4x (DVD-RW) 2nd Optical Drive DVD-ROM 2nd Optical Drive Read Speed 16x (DVD) Audio / Video Graphic Processor ATI RADEON Xpress 200 Audio Input Microphone Jack • 1 x Line In Audio Output Type Sound Card • Headphones • Line out Integrated Audio AC97 Audio Codec

• Answer:

  The ATI radeon 4650 is a pretty good card. The only down side to the 4650 is that is recommends a 400 watt PSU which will bump the price up another $60-80ish. I put in a BFG 550 watt modular PSU into my HP computer and it barely fit into it. But basically with most good quality cards you are going to have to up the Power source. Make sure you get above 400 since that is the minimum. If you go higher then you will have room for expanding later on down the road.