Nopes, have you ever seen those server rack machines. Talking about air cooling, servers have the best and the noisiest (fans fans everywhere, front to back). 2 processors isn't much effort to keep cool, but 4 processors maybe.. ;)
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Of course that chip will be available only round 04/09. 8 cores on 45nm? At what frequency?
But the results he posted only differ in cpu utilisation (93% vs. 99%) and the SAPS 5730 vs. 10520. A cause for that lower scoring system could have been some marketing team asking for an crippled k10 result to make k10.5 look better. :shrug:
Never said istanbul will beat those new xeon's performance wise. Bandwidth wise amd will need maranello to compete here again.
If you look closer at the two benchmark tests, you'll find the slower one has a response time of ~1s, while the other has a response time of ~2s. This is what Micheal S of Realwordtech forums says about these tests:
Quote:
Basically, there are two classes of SAP-SD 2-tier submissions - "fast" with response time around 1 second and "throughput-oriented" with response time around 1.6-2 seconds. It seems, average response time above 2 seconds is illegal.
The first class of submissions is far less popular and recently done almost exclusively on x86. All scores in my original post belong to the second class and have average response time very close to 2 sec.
I have to manage few 2U servers at work I know their powerfull and noisy fan's :shocked:. Of course you get the heat easy out off the case. Still have to cool down the server room.
What do you compare here X5400 or L5400 with 5500? Do you take the gains caused by no longer using fbdimm's into account?
Shanghai's are a differnt story. I did not go barcelona on the server side, neighter 5400. Need a new dual socket server this year so I'm on a lookout. I'd prefere amd because otherwise I'd loose live migration possibility or pefromance i'f id run vm's in an compatible mode.
I got 2 5500 series systems. One 3.2Ghz high performance and one 2.26Ghz low voltage (With turbomode). They both use less. And they are compared directly with the previous counter parts from the same OEM. (LV 5400 was 2.33Ghz tho).
Its both due to FB-DIMMs but also chipset. And in performance they are simply a monster. So more or less twice the computational power and alittle lower power consumption. Its regular 1.5V DDR3. Not lowpower 1.35V. They didnt have them yet.
And remember your servers fanspeed can easily cheat due to temperature in the serverroom. They are always overcooling. And noise is different between OEMs. HP servers tend to make alot mroe noise at the same temperature than Dell etc. But ye, if needed the fans can go between 11500 and 14000rpm.
IMHO, it is not about a Fast Processor but a well balanced architecture that had been hobbled by safe but slower features. Hypertransport is born from Alpha EV6 and of all people, RAMBUS. Intel FAB-ed some of the Alpha's. Intel had L3 long before AMD even dreamed about it. Did we forget the P4 Extreme with L3:rofl:? Give AMD credit for what the really did like X86-64 but please try to stop doing it for stuff they did come up with.
Again, put two Dothan PentiumMs on a QPI and they'd kick mucho-@$$ here. GamePC showed just how much they rocked with a crippled platform. I remember folks partial to the Green Team saying it was fake, just as they said when the first Conroe tests showed up. Many here on this forum Doubted the first i7 reviews when others thought they were s/low. This parallel monster gets meaner as its L3 grows, memory controller/s get larger/faster and yes, QPI speeds up. The biggest problem AMD has is that Intel
Donnie27 I don't agree with your history lesson.
On servers i7 need to get the power down
I have a dual socket system with essentially 2 yonah(dualcore Dothan) laptop chips in it.
4 cores total at 1995/2mb/667.
Computational power equal to a Q6600 at the same mhz and draws 117w at 100% load,85w at idle.
Actually using it to post now as my elec is out and on a generator and this is the lowest drawing system in the house!
Thanks for the details. So those benchmarks with the low thruput where intentionally optimized for fast response times. Not so unrealistic if workload are people whom have to feed the SAP system with data thru dialog input.
2.26GHz low voltage version would be an option here. You mean lower in idle?
Performance is not that much an issue, response time is more important.
I'm more concerned about cooling. I expect it is more efficient to avoid heat in above scenario.
@gosh, the Hypertransport and DDR IMC was derived from Alpha's bus designs which Intel bought over later. In fact AMD got the EV6/EV7 license FREE from (guess who?) Intel. :yepp:
The Gallatin core had an integrated L3 cache (plus Northwoord core), and was considered the fastest processor during its (very short) reign. It can even go head to head against Athlon 3200+ at that time and still win. However it was also the most expensive around (having the "Extreme Edition" tag). This is an extremely rare chip.:p:
The Dothan was an entirely different design from the Netburst. Its more towards higher IPC and low power.:up:
Please read carefully!
I haven't said that AMD has invented L3 cache, hypertransport etc.
What I said was that the article focused on how good i7 while they informed how bad AMD is. AMD had L3 cache on die before i7, AMD had hypertransport before i7 QPI.
Do you understand or is this to complicated?
News at 11 : 2S Nehalem beats 4S Shanghai in SAP-SD
2s/8c Nehalem (2.93 GHz) - 4995 users
2s/8c Shanghai (2.7 GHz) - 2730 users
4s/16c Shanghai (2.7 GHz) - 4386 users
Basically , one Nehalem thread is faster than a Shanghai core in this particular benchmark.
http://www.sap.com/solutions/benchmark/sd2tier.epx
Dunnington fairs pretty poorly at 4400 users per 24 cores.1066MHz FSB and FBDIMM 667 are real show stoppers.