Xbox specs revealed | CNET News.com: “Xbox specs revealed
By CNET News.com Staff
http://news.com.com/Xbox+specs+revealed/2100-1043_3-5705372.html
Story last modified Thu May 12 18:30:00 PDT 2005
A 20GB hard drive, high-def game support and a 500MHz ATI graphics processor: Glimpse the Xbox 360’s system performance specifications as provided by Microsoft.
Custom IBM PowerPC-based CPU
• Three symmetrical cores running at 3.2 GHz each
• Two hardware threads per core; six hardware threads total
• VMX-128 vector unit per core; three total
• 128 VMX-128 registers per hardware thread
• 1 MB L2 cache
CPU Game Math Performance
• 9 billion dot product operations per second
Custom ATI Graphics Processor
• 500MHz processor
• 10 MB of embedded DRAM
• 48-way parallel floating-point dynamically scheduled shader pipelines
• Unified shader architecture
Polygon Performance
• 500 million triangles per second
Pixel Fill Rate
• 16 gigasamples per second fill rate using 4x MSAA
Shader Performance
• 48 billion shader operations per second
Memory
• 512 MB of GDDR3 RAM
• 700 MHz of DDR
• Unified memory architecture
Memory Bandwidth • 22.4 GB/s memory interface bus bandwidth
• 256 GB/s memory bandwidth to EDRAM
• 21.6 GB/s front-side bus
Overall System Floating-Point Performance
• 1 teraflop
Storage
• Detachable and upgradeable 20GB hard drive
• 12x dual-layer DVD-ROM
• Memory Unit support starting at 64 MB
I/O
• Support for up to four wireless game controllers
• Three USB 2.0 ports
• Two memory unit slots
Optimized for Online
• Instant, out-of-the-box access to Xbox Live features with broadband service, including Xbox Live Marketplace for downloadable content, gamer profile for digital identity, and voice chat to talk to friends while playing games, watching movies or listening to music
• Built-in Ethernet port
• Wi-Fi ready: 802.11a, 802.11b and 802.11g
• Video camera ready
Digital Media Support
• Support for DVD-Video, DVD-ROM, DVD-R/RW, DVD+R/R”
