Sun's Zippy New Chips
Mark the Revelator writes: "Reuters has a story about Sun unveiling it's latest and greatest UltraSparcIII chips. The new chips are being made by TI and are the first UltraSparcs to use copper instead of aluminum for transistor connections. Although they're supposed to compete with Intel's Itanium chips, they only run at 900MHz ... for now."
Hmm, Not really.
I mean, yeah, they're totally different. And they're faster clock-per-clock (with added benefit to FP stuff).
But a 1.4GHz Athlon blows away a 7-800MHz UltraII for most kinds of computation. A 1 GHz Athlon seems to be about (42, 29) on the (retired) SPECint95/SPECfp95. A 450Mhz Ultra-II (not Ultra-IIi, I'm looking at results for an SPARCstation Ultra-60) gets about (20, 27). That's a bit faster int clock-per-clock, and a lot faster FP. Note that for practical stuff (databases, web, whatever) int is more important. Of course benchmarks are hard to interpret, but this gives you an idea. All the SPEC benchmarks are available at www.specbench.org. Of course there are no Ultra-III results, but I'm guessing it's not going to be 2x as fast as the best x86s (at least I'll wait to see the results before I believe it).
You use a Sun because you want an architecture that will scale smoothly up to 64-way (I *guarantee* that will be faster than any single x86 machine).
Actually if you want to both go fast at the low end and scale well, you can buy an RS/6000 -- IBMs Power3 and Power4 chips are absurdly fast and scale very well (and actually focus on memory bandwidth for database performance). But a bottom-of-the-line Sun is a lot cheaper than the cheapest RS/6000.
Full disclosure: I work for IBM (in software) and I've seen a good bit of internal stuff about IBM chips, esp. the upcoming Power4. Most of that information has now been published in MicroProcessor Review and is now publicly available, I think you'll find it if you poke around...
(even more amusing full disclosure: I'm a huge fan of old Sun stuff, their machines are beautifully engineered. i use a couple old 32bit sparcs for all kinds of things)
Just because the MHz on the Sun equipment (900MHz) is lower than the current Pentium (1.5MHz), don't be fooled into thinking the Intel hardware is better. What matters after all, is throughput and pumping that data. Check your specs!
Check this 4 CPU Intel vs the 1 CPU Sun considering plain speed...
CINT2000: Intel Corporation Intel D850GB motherboard(1.5 GHz, Pentium 4 processor) - 536 524
CFP2000: Intel Corporation Intel D850GB motherboard(1.5 GHz, Pentium 4 processor) - 558 549
CINT2000: Sun Microsystems Sun Blade 1000 Model 1900 - 467 438
CFP2000: Sun Microsystems Sun Blade 1000 Model 1900 - 482 427
CINT2000: Advanced Micro Devices Tyan Thunder K7 Motherboard, 1.2GHz Athlon MP Processor - 522 495
CFP2000: Advanced Micro Devices Tyan Thunder K7 Motherboard, 1.2GHz Athlon MP Processor - 481 433
Throughput on the Sun with 2 CPU, but strangely enough, none for any Intel hardware. Throw a 2 CPU AMD in there, though...
CINT2000 rate: Sun Microsystems Sun Blade 1000 Model 2900 - 10.7 9.97
CFP2000 rate: Sun Microsystems Sun Blade 1000 Model 2900 - 10.2 9.09
CINT2000 rate: Advanced Micro Devic Tyan Thunder K7 Motherboard, 1.2GHz 2CPU - 10.8 11.1
CFP2000 rate: Advanced Micro Devic Tyan Thunder K7 Motherboard, 1.2GHz 2CPU - 8.30 9.14
"Beware of he who would deny you access to information, for in his heart, he dreams himself your master."
Where the real advantages come in is with things like memory architectures (eg, memory interleaving) and bus speeds (where the system bandwidth is more than an x86 solution) which is relevant in databases. Added to that, you can scale these up much more (the E6800 can have 24 900MHz CPU's, for instance; Fujitsu have recently released a 128 CPU system based on their USII clone at 500+MHz).
If you want a measure of raw CPU performance, check www.spec.org; currently, the fastest single CPU systems are Intel P4's (although some alphas come damn close). The Sun 280R doesn't come close to that, although it is faster than its clock speed would suggest...