Sony also confirmed the PlayStation 3 will use Blu-ray discs as its media format. The discs can hold up to six times as much data as current-generation DVDs. It will also support CR-ROM, CD-RW, DVD, DVD-ROM, DVD-R, DVD+R formats. Sony also confirmed the machine would be backward compatible all the way to the original PlayStation. It will also have slots for Memory Stick Duo, an SD slot, and a compact flash memory slot. It will also sport a slot for a detachable 2.5-inch HDD, somewhat similar the Xbox 360's. Sony did not mention if the drive would be standard.
Sony also laid out the technical specs of the device. The PlayStation 3 will feature the much-vaunted Cell processor, which will run at 3.2GHz, giving the whole system 2 teraflops of overall performance. It will sport 256MB XDR main RAM at 3.2GHz, and it will have 256MB of GDDR VRAM at 700MHz.
Sony also unveiled the PS3's graphics chip, the RSX "Reality Synthesizer," which is based on Nvidia technology. The GPU will be capable of 128bit pixel precision, 1080p resolution, some of the highest HD resolution around. The RSX also has 512MB of graphics render memory and is capable of 100 billion shader operations and 51 billion dot products per second. It also has more than 300 million transistors, larger than any processor commercially available today. It will be manufactured using the 90nm process, with eight layers of metal. The RSX is more powerful than two GeForce 6800 Ultra video cards, which would cost roughly $1,000 total if purchased today.
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The Controllers use Bluetooth wireless and the console suports lots of internet features like video chat.
http://www.gamespot.com/news/2005/05/16/news_6124681.html?q=1Gamespot as a side by side compareison of the PS3 and Xbox 360 and so far they seam fairly close in specs though the PS3's video card is better and overall slightly faster.
forgot to post the link
http://hardware.gamespot.com/Microsoft-Xbox-360-C-15016-x-4-5
