The Guts of the Next
X-Box
CPU - Xenon's CPU has three 3.0 GHz PowerPC cores. Each core is
capable of two instructions per cycle and has an
L1 cache with 32 KB for data and 32 KB for
instructions. The three cores share 1 MB of L2
cache. Alpha 2 developer kits currently have two
cores instead of three.
GPU - Xenon's GPU is a generation
beyond the ATI X800. Its clock speed is 500 MHz
and it supports Shader 3.0. Developers are
currently working with an alpha 2 GPU. Beta GPU
units are expected by May and the final GPU is
slated for a summer release. The final GPU will
be more powerful than anything on the market
today; in game terms, it would handle a game
like Half-Life 2 with ease.
System Memory - Xenon will have 256
MB of system RAM. Keep in mind that this number
should not be equated to typical PC RAM. The
Xbox has 64 MB of system RAM and is a very
capable machine.
Optical Drive - As many have
speculated, Xenon will not use Blu-Ray or
HD-DVD. Games will come on dual-layer DVD-9
discs. While the media is the same as that of
the current Xbox, the usable space on each disc
is up to 7 GB. The drive is slated to run at
12X.
Memory Units - Xenon will use 64 MB
to 1,024 MB memory cards. 8 MB is reserved for
system use, leaving a 56 MB to 1,016 MB for user
data.
Hard Drive - As many have speculated,
Xenon's hard drive is optional. 2 GB of the
drive will be used as game cache. The final
drive size is still being determined.
Camera - Xenon will have a USB 2.0
camera. It's capable of 1.2 megapixel still
shots and VGA video. Photos can be used in-game
and for gamer profiles. The camera can also be
used for video chat. It's unknown if the Xenon
camera will allow for EyeToy-like gameplay.
Developers are currently using a simulated
camera driver.
Sound Chip - Xenon does not have an
audio chip in the traditional sense.
Decompression is handled by hardware, while the
rest of the chores are handled by software.
DirectSound3D has been dropped in favor of
X3DAudio. The former was deemed too inflexible.