Just a few quick questions (ZapWizard...you there?) Anyone have any idea what speeds (Ghz) will be available at launch of this new chip? When running the CPU in 32-bit mode (to allow backwards compatibility), what kind of speed are we gonna get? A little faster than the current XP2800's, or a LOT? Just wondered as I plan on getting one as soon as they're released...just not sure about it - depends on the 32-bit performance as it's gonna take a while before 64-bit applications are being released by the bucket load... Oh, just another quick question about resisters (don't want to start a new thread in 'Electronics' - I ain't no sp4mm0r I'm trying to run 2 60mm fans at half speed (or, 7v), to cool a PSU - what kind of resistor would I need to take the speed down? Woud it work running off the fan header on the PSU? Cheers guys
I'm no AMD expert but here goes... I believe they're launching at somewhere around 3 Ghz but I don't know this for certain. A lot (depending on clock speed). Obviously a higher clock makes for a faster chip, 32-bit or not. The Athlon 64 dosen't perform physically any faster in 64-bit mode, it can just move more data at one time. So the higher clock speed will apply - like an existing AMD32 chip at a higher speed. AMD wouldn't make a chip that only performs well in 64-bit mode (although the Athlon64 IS intended for server applications in part). It will perform well while running Legacy-32 applications, although obviously better in 64-bit mode. The normal procedure is to connect between 12v and 5v lines to get 7v. Try here if you can't find a 5v line... </bull> Sorry if that didn't make sense
cheers for that info I knew the 32bit speed would be faster, just wasn't sure how much, and if it was worth getting, or just get a fast XP... I'm not really with it when it comes to electronics, so I just need a resistor value so I can pop down to Maplins... ...also, there is no 5v line on the PSU fan header...it would mean routing the fan cable through the case of the PSU to a header on the mobo....thanks anyway.
Actually it will be released about 2GHz, core improvements and on die memory controller bringing in the biggest improvements in terms of speed. It will be given a Quantispeed rating (cough!) or 3400+ (hmm), not sure if a 2GHz Athlon 64 can match or equal a 3400MHz Pentium 4 Northwood on an 800MHz bus, but I guess the benchmarks will tell, Mind you the 64 bit mode will also bring some performance improvements, UT2K3 runs 15% faster when compiled for 64bit. Athlon 64 != Barton, which will launch at 3GHz or more.
I'm not sure that a 3400+ should be directy compared to the 3.4GHz P4. The PR rating was "defined" for the athlon XP as the speed required on a thunderbird core to achieve the same performance. eg XP 1800+ should have the same performance as a thunderbird core at 1.8GHz. Hope this helps
It didn't entirely hold though, Its not to hard to see that AMD can't keep up in the clock speed race so it had to do something to match Intel in the numbers stake. I mean they could call their 2800+ a 3200+, but it would be rollocks, at least 2800 is believable,
Actually, from early results a 2GHz Clawhammer should easily best a 3.4GHz P4. Earliest indicators with 800MHz samples had them quicker than 1.6GHz P4s. The answer is wait and see though. Theoretically, there's also no reason that you can't use a 64-bit register or execution unit to hold or execute 2 32bit instructions at once. Hyperthreading? How about two REAL CPUs in one? Possibilities are endless....
