Intel Clovertown: Quad Core for the Masses
by Jason Clark & Ross Whitehead on March 30, 2007 12:15 AM EST- Posted in
- IT Computing
Conclusion
As we stated earlier on, it was difficult to review Clovertown without having K10 (Barcelona) or other competing quad core technology. Intel was first to market with quad core in a single package, and with very solid performance and power consumption figures. The purists were skeptical about Intel taking their approach to quad core, and we believe Intel has proved them wrong. In a recent article over at The Register, an AMD Executive VP apparently said, "If I could do something different, I wish we would have immediately done an MCM - two dual cores and call it a quad core - because, I guess, the market sucks it up."
The next 6-9 months are going to be very interesting with the arrival of Barcelona and Penryn. It looks like K10 will be first to market and we already know it will be delivered with maximum clocks in the 2.1 GHz - 2.3 GHz range. Intel just announced price cuts and availability of 3.0 GHz Clovertown CPUs. As for Penryn, how much of a clock bump, extra cache, and power savings is Intel going to be able to recognize from the shrink to 45nm? If nothing else, it should allow Intel to be able to deliver its higher clock CPUs in lower TDP envelopes with more cache than the existing 120W for the 2.66 GHz Clovertown.
As we said earlier this week in our Penryn coverage, it's too early to say for sure which parts will come out on top. AMD is stating that their native quad core solution will be faster clock for clock than anything Intel has at the same time. That's a great marketing statement, but with clock estimates of 2.30GHz for Barcelona and 3.20GHz for Penryn, such statements don't really tell us much. In order to remain at parity when comparing the top performing parts, AMD will apparently need to be about 40% faster clock for clock, and they haven't put forth that claim yet. Needless to say, we will be eagerly awaiting actual hardware for testing from both companies, and very likely we will end up with a situation where each platform will have certain applications where it excels.
As we stated earlier on, it was difficult to review Clovertown without having K10 (Barcelona) or other competing quad core technology. Intel was first to market with quad core in a single package, and with very solid performance and power consumption figures. The purists were skeptical about Intel taking their approach to quad core, and we believe Intel has proved them wrong. In a recent article over at The Register, an AMD Executive VP apparently said, "If I could do something different, I wish we would have immediately done an MCM - two dual cores and call it a quad core - because, I guess, the market sucks it up."
The next 6-9 months are going to be very interesting with the arrival of Barcelona and Penryn. It looks like K10 will be first to market and we already know it will be delivered with maximum clocks in the 2.1 GHz - 2.3 GHz range. Intel just announced price cuts and availability of 3.0 GHz Clovertown CPUs. As for Penryn, how much of a clock bump, extra cache, and power savings is Intel going to be able to recognize from the shrink to 45nm? If nothing else, it should allow Intel to be able to deliver its higher clock CPUs in lower TDP envelopes with more cache than the existing 120W for the 2.66 GHz Clovertown.
As we said earlier this week in our Penryn coverage, it's too early to say for sure which parts will come out on top. AMD is stating that their native quad core solution will be faster clock for clock than anything Intel has at the same time. That's a great marketing statement, but with clock estimates of 2.30GHz for Barcelona and 3.20GHz for Penryn, such statements don't really tell us much. In order to remain at parity when comparing the top performing parts, AMD will apparently need to be about 40% faster clock for clock, and they haven't put forth that claim yet. Needless to say, we will be eagerly awaiting actual hardware for testing from both companies, and very likely we will end up with a situation where each platform will have certain applications where it excels.
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Visual - Friday, March 30, 2007 - link
the two xeon sockets share a common fsb to memory and io bus, right?perhaps you should have included a 1-socket xeon vs 2-socket opteron, just to see how they compare when the xeons aren't as starved for bandwidth... not necessarily a 775 xeon and mobo, i imagine the 771 systems you used now would run just fine with just one of the cpu-s.
sure, that would turn into a core 2 extreme quadcore vs amd 4x4, or their server equivalents running server benchmarks instead of games but i'm still curious about it :p
JarredWalton - Friday, March 30, 2007 - link
I believe (could be wrong - it might be a future chipset; can't say I'm up-to-date on the server chipsets these days) that the Xeons have a Dual Independent Bus configuration, so they do get double the bandwidth. The only truly fair way of comparing would be a quad core AMD chip against a quad core Intel chip, but we obviously have to wait on AMD there. It's certainly going to be an interesting matchup later this year.Note that in 2008, Intel will use a quad bus topology similar to HyperTransport, at least on paper, so they are certainly aware of the bus bandwidth problems right now. I'm not sure FB-DIMMs are really helping matters either unless you use huge memory footprints. So FB-DIMMs can be good in the real world but bad for benchmarks that don't utilize all the available RAM.
DigitalFreak - Friday, March 30, 2007 - link
FB-DIMMs are also un-godly expensive if you need to have 16+ GB in a 2U box. With the Opteron boxes, you tend to have many more DIMM slots, so you can use lower capacity DIMMs.yyrkoon - Friday, March 30, 2007 - link
I thought my eyes were decieving me, so I had to go back and look at the charts. AMD CPUs are capable or more transactions per second ? Wow. Granted, AMD CPUs also seem to use more power, but they also seem to have a 'better' CPU usage curve.I suppose most companies, and enterprises would probably opt for the intel, based on long term power savings, and probably have an Opteron machine or two, where performance was critical.
It is nice to know, that AMD still does something better than intel. Makes me feel better about buying an Opteron 1210 for my desktop, even if it isnt a socket F Opteron . . .
Phynaz - Friday, March 30, 2007 - link
No.
The tested SYSTEM is capable of more transactions per second.
defter - Friday, March 30, 2007 - link
You mean that four top of the line AMD cpus were outperforming two second fastest Intel's CPUs?Clovertown's performance is very impressive, since according to those results two top of the line 2.66GHz Clowertowns would match performance of four 2.8GHz Opteron.
Viditor - Friday, March 30, 2007 - link
It may be less impressive than you think as 4 dual core 2.4GHz Opterons beat 2 quad core 2.33GHz Clovertowns (by 16%).
JarredWalton - Friday, March 30, 2007 - link
I'm not sure where you get that comparison. Four dual core 2.8 GHz Opterons beat two 2.33 GHz Clovertown by 16% - in certain situations.Viditor - Friday, March 30, 2007 - link
If you scroll up a few posts in this thread, you'll see the quote and link...
"...Two 2.4GHz Opteron 880 processors are as fast as one Xeon 5345, but four Opterons outperform the dual quad core Xeon by 16%..."
JarredWalton - Friday, March 30, 2007 - link
Ah, right. I think that's part of what Ross was talking about when he discusses the difficulties in coming up with appropriates tests for these systems. The Forum and Dell Store benchmarks had some serious issues, likely related to optimizations and I/O activity. There are instances where Intel does better, and of course others where they do worse.