If I am doing video encoding would the One 3.33GHz 6-Core Intel Xeon Westmere or the Two 2.4GHz Quad-Core Intel Xeon Westmere (8 cores) be better. I am guessing the 6-core just becuase of the higher base processing speed and because video encoding using something like x264 wouldn't use all the cores anyway correct?
In my experience with Final Cut and an 8 core 27" iMac, all the cores do get used when transcoding, even with H.264...in fact doesn't seem to matter which codec, all the cores get used.
http://www.apple.com/macpro/performance.html
The disk layout really is just as important. I went with the HW RAID and 4 x 1 TB internal drives, which I will use in a RAID 5 config -- almost as fast as a 4 drive stripe, therefore, nearly twice as fast as a single SSD disk. Of course with all 4 drives flailing away at all times, having a spare drive on hand is a must, since with RAID 5 if you lose a drive you need to replace it immediately or risk losing all data if a second drive fails before the resync.
In other "news" read the fine-print on the ATI HD 5870 -- they will support Open CL with a driver update circa end of 2010. If only Final Cut would use Open CL, then this beast would REALLY scream!
http://www.amd.com/us/products/desk.../Pages/ati-radeon-hd-5870-specifications.aspx
Imagine 12-cores of traditional CPU + the 5870 GPU all cranking on your transcoding at the same time!!! These GPU specs are insane!
# Engine clock speed: 850 MHz
# Processing power (single precision): 2.72 TeraFLOPS
# Processing power (double precision): 544 GigaFLOPS
# Polygon throughput: 850M polygons/sec
# Data fetch rate (32-bit): 272 billion fetches/sec
# Texel fill rate (bilinear filtered): 68 Gigatexels/sec
# Pixel fill rate: 27.2 Gigapixels/sec
# Anti-aliased pixel fill rate: 108.8 Gigasamples/sec
# Memory clock speed: 1.2 GHz
# Memory data rate: 4.8 Gbps
# Memory bandwidth: 153.6 GB/sec
I'll be VERY VERY surprised if Final Cut gets an Open CL upgrade before the new 5870 driver comes out. Apple is SOOOOO slow about adopting their own technology...and Open CL was a big deliverable for Leopard. How many years later and we STILL don't have a version of FCP+Compressor that uses it? Pshaaaww!