sparing

[zvswgogna]

300 shipped on HardForum
at any rate, like the title says, there are 4 Opteron 6128 8core CPUs for sale on [H]ardForum for only $300 shipped right now. the thread was just posted today, and i don't suspect they'll last long at this price. keep in mind that these bad boys still sell for $260 new (each)! the only downside would be the extra expenditures on 4 CPU coolers (CoolerMaster Hyper 212+'s or EVO's would be perfect for something like this, and inexpensive to boot) and a G34 4socket mobo (which won't be inexpensive, and that may be a tremendous understatement). i'd snag these myself, but i don't see myself being motivated enough in the near future to spend the additional $700$800 on a mobo and coolers.
As for the motherboard, most are proprietary or SWTX (which is still proprietary from SuperMicro). You might be able to fit a SWTX board into a case with 45 inches clearance above the rear I/O panel. Otherwise, you'll need a barebone system to match the board size. You're looking at over $1500 for the parts probably (including power supply, since you now need a power supply that can handle 3+ EPS12 connections.
However, you could just buy 2x dual G34 boards and run two crunchers on EATX form factor boards. Much cheaper and can use commodity parts using industrywide standards.
If anyone seriously is looking into this, I can look into parts around and maybe get you a decent price if you seriously want to run this hardware. Local San Diego only.
As for the motherboard,[url=http://www.holisteroutlet.cc]hollister femmes[/url], most are proprietary or SWTX (which is still proprietary from SuperMicro). You might be able to fit a SWTX board into a case with 45 inches clearance above the rear I/O panel. Otherwise, you'll need a barebone system to match the board size. You're looking at over $1500 for the parts probably (including power supply, since you now need a power supply that can handle 3+ EPS12 connections.
However, you could just buy 2x dual G34 boards and run two crunchers on EATX form factor boards. Much cheaper and can use commodity parts using industrywide standards.
If anyone seriously is looking into this, I can look into parts around and maybe get you a decent price if you seriously want to run this hardware. Local San Diego only.
AMD Phenom II (Deneb) vs AMD FX series (Zambezi Vishera) vs A6/A8 series (Llano Trinity) quad cores vs Intel Core i5 23xx/24xx/25xx/33xx/34xx/35xx series quadcores (Sandy Bridge/Ivy Bridge) vs Intel Core i7 26xx/27xx/37xx/38xx series quadcores series quadcores (Sandy Bridge/Sandy BridgeE/Ivy Bridge)
obviously the 8core Opteron 6128 is now discontinued, but according to camelegg, newegg's highest and lowest prices were $310 and $250 respectively. assuming you can get a used one in good condition for $200, you would also need a socketG34 mobo. so that puts us at $425 for the 8core Opteron 6128 CPU and a singlesocket G34 mobo.
1) AMD Phenom II X4: a used 965 BE will be in the neighborhood of $100.
2) AMD FX series quadcore: there doesn't seem to be much of a price delta between the older Zambezi (Bulldozer) quads and the newer Vishera (Piledriver) quads right now ($110$130), so with an AM3+ mobo ($100), you're in there right around $230 tops. the most expensive socketFM1 mobo on newegg right now is $115 (before rebate), so on this platform you'd come in around $220.
5) Intel Core i7 quadcore: these CPUs seem to be in the $300$330 range brand new. with the same lot of mobos to choose from, this platform could run you anywhere from $350 to $780.
so from a "CPU only perspective, only the slightly aged Phenom II platform can be purchased twice for significantly less than a single Opteron 6128 platform. if you are building from scratch and don't already have the other necessary hardware on hand, then even the Phenom II platform starts to look a bit long in the tooth b/c you'll have to buy 2 of everything else (case, PSU, memory, CPU cooler, possibly GPU, etc.).
now from a performance point of view, i would imagine that 2 of any of the above platforms (save for the Core i7 CPUs) would be pretty comparable in performance to a single Opteron 6128 platform, but would consume a good deal more power in the process. i would imagine that only the Core i CPUs would compare favorably w/ respect to both performance and power consumption due to HyperThreading these quadcores have 8 threads (4 real cores and 4 virtual cores). the i7's are typically clocked much faster than the 6128, and probably have more efficient instruction pipelines, but the 6128 has the advantage of 8 real cores. at the end of the day, its probably a wash between a single Opteron 6128 platform and a single Core i7 platform. obviously 2 i7 platforms equals 16 threads, and will outperform a single Opteron 6128, but it will also consume a good deal more power.

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and involution &gt


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