... Intel's ONLY 6core offering. It is prohibitively expensive (1000 bucks). Even if you can afford it (I could), it doesnt make ANY sense from a value (price v. performance) standpoint.
Intel's (Core i7, Gulftown) hex-cores:
i7-960,
i7-965X, i7-970,
i7-980X; samples of
i7-990X are already distributed and will market Q1/2011.
AMD's (Phenom II X6, Thuban) hex-cores:
X6-1055T (2 versions), X6-1075T,
X6-1090T; possibly also X6-1035T, X6-1045T, X6-1065T, and
X6-1080T (but I can't confirm). AMD has not announced any future X6's (their focus is on the next gen "Fusion" APUs expected to market Q3/2011; these will require a new socket, sometimes called "AM3+").
(
Bold indicates
Extreme Edition or
Black Edition parts with unlocked multipliers.)
Due to Intel's regulated price structures, I'll pay ~CDN$1275-$1350 for an Extreme i7 (whichever version).
AMD's prices seem to be looser and vary largely among vendors. I'll pay ~CDN$400-$550 for a Black X6 (when available, which they currently aren't).
The price gap widens when mobos are also considered; 1st-tier X58 boards would cost me ~CDN$400-$600 while 1st-tier 890FX boards cost ~CDN$200-$350.
"Prohibitively expensive" is a personal decision. :wof:
i7's are disgustingly expensive, and the Extreme i7's are blatant ass-raping robbery. But if you
*absolutely must have* the ultimate computer then you'll pay the premium.
then you would be looking at a lot of AMD offerings ...
... there are so many other variables (disk, mem, graphics) that will make a system with a "lesser" CPU perform on par or better than a system with just the best CPU.
This thread has brought my (unthinkingly dismissive i7-onwards) fanboy dedication into question. My next major processor upgrade (Q3-4/2010, lol) might just be an AMD. Even having to suddenly also buy a new mobo and cooling block might still cost less overall. AMD might even turn out to be the
best possible upgrade, not just the most cost-effective one. I might still choose pure Intel, but at least it'd be an informed choice instead of a religious one.
My comparison of performance-critical specs:
i7-X and X58
QPI (@6.4GT/s), 16GB triple-channel DDR3-1066 (@25.6GB/s) with Turbo Cache, PCIe 2.0 (16/16/4 lanes as dual-16 or quad-8 @32GB/s), NB-SB bus shares QPI, SATA2 (3Gb/s).
X58 supports eSATA and FireWire (lacking on some 890FX boards).
Most i7 overclocks exceed 4GHz and a few achieve 5Ghz.
X6 and 890FX
HT3.0 (@2x2.0GT/s), 16GB/24GB dual-channel DDR3-1333 (@21GB/s), PCIe 2.0 (16/16/4/1 lanes as dual-16 or quad-8 @32GB/s, plus 5 more single lanes @4GB/s), NB-SB bus across AL3X (@4GB/s), SATA3 (6Gb/s), hardware virtualization IOMMU.
890FX supports IDE, USB1 ports, and legacy peripherals (X58 doesn't); great for compatibility with old devices. Also supports more USB2 ports, extra GbLAN, added PCI slots, and better audio.
Almost every 890FX board adds USB3 controllers. I don't know why the hell people need 14 or more USB2 ports, but having even a few that can operate as USB3 is essential.
The i7/X6 processors support basically equivalent special instruction capabilities: 64-bit, NX bit, Virtualization, power saving, and multimedia SIMDs (SSE4.2 vs SSE4a+3DNow! ... six of one, half-dozen of the other).
Momentary off-topic retrogression to OP - a performance SSD or two would certainly be required equipment to get the most out of SATA3 6Gb/s, with or without RAID stripes. :nod:
There's a huge number of AM3/890FX mobos which collectively offer a ****load more features and variety than X58 boards. It appears that AMD isn't very heavy-handed about controlling their standards so the mobo makers have generous leeway in their designs and all try to stuff in all the extra features they can to compete in the "PC enthusiast" market. Sophisticated overclock-friendly options are the norm instead of the exception.
I just can't quite make sense of the (to me) confusing PCIe configuration. I doubt it'd be an issue for me since I rarely plug in more than a PCIe-16+16 SLI or CFX combo. Sometimes a PCIe-4 drive controller or sound or Gb card (already integrated and therefore not necessary on these boards).
Of course direct comparisons are sort of impossible because of some major differences in architecture and design philosophy. I know X58 well, I can hardly make sense of the way AMD does things (it's just a lot of information all at once for a guy who's a decade outdated). Still reading benchmarks and reviews. I've got a lot of catching up to do (and system build pricing to figure out) before I can decide whether Intel is worth the extra $$$. Thanks for the reminder of how rapidly the value of PC tech gets obsoleted (the accountants at work say computers depreciate -25% annually, ie after 4 years they're essentially worthless).