The Best Server CPUs Compared, Part 1
by Johan De Gelas on December 22, 2008 10:00 PM EST- Posted in
- IT Computing
If you skipped to this page immediately, you can find our
"market analysis" on the previous page.
Looking at the Server CPUs from the point of view of the market was surprising and refreshing. The whole problem with running every benchmark you can get your hands on is that it just gets confusing. Sure we can have 10 more benchmarks that can be categorized under "other", but if either the Xeon or Opteron wins them, would that give you a better view of the market? That is why we decided to focus on finally getting that Oracle and MCS benchmark right. That is also why we rely on the more reliable industry standard benchmarks to make our analysis complete.
Right now, it is clear that the latest AMD Opteron is in the lead. We are really at the pivotal moment in time. No matter how good the current Xeon "Harpertown" and "Dunnington" architectures are, they lose too many battles due to the platform they are running on. The FSB architecture is singing its swan song. Only a small part of the market, namely:
- The ERP people who don't care about power, but who need the highest performance at any cost
- The HPC people who have extremely intensive code which does not work on sparse matrices
- The people who render
…can ignore the shortcomings of the FSB-based platform.
For most other applications, the AMD platform is simply better in price/performance and performance/watt (see our previous Shanghai review). It won't last long though, as the performance that the new Nehalem architecture has shown in OLTP, ERP, and OLAP is simply amazing. Moreover, there is little doubt that the dual Xeon 5570 with 34GB/s of bandwidth (dual Opteron is 20-21GB/s) will shine in HPC too. AMD servers can use the HyperTransport 3.0 and higher clock speeds to counter this, but that is for a later article….
A big thanks to Tijl Deneut for assisting me with the hundreds of benchmarks we ran in the past month.
References
[1] Choosing the Right Hardware for Server Virtualization (IDC Paper sponsored by: Intel), Ken Cayton, April 2008
[2] IDC's European Server virtualization forecast, July 2008
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Bruce Herndon - Tuesday, December 23, 2008 - link
I'm surprised by your comments. You claim that VMmark is a CPU/memory-centric benchmark. If I look at the raw data in the VMmark disclosure for Dell's R905 score of 20.35 @ 14 tiles, I see that the benchmark is driving 250-300 MB/s of disk IO across several HBAs and storage LUNs. This characteristic scales with the various systems mentioned in the article.As a designer of VMmark, I happen to know that both storage bandwidth (for the fileserver) and latency (for mail and database)are critical to acheiving good VMmark scores. Furthermore, the webserver drives substantial network IO. The only purely CPU-centric component to VMmark is the javaserver. Overall, the benchmark does exercise the entire virtualization solution - hypervisor, CPU, memory, disk, and network.
cdillon - Tuesday, December 23, 2008 - link
While SAS and Infiniband share some connectors and obtain similar data rates, they are incompatible technologies with two different purposes. Infiniband can be used for disk shelf connections, but it is less common and definitely not the case here. You should not call the connection between the Adaptec 5805 controller and the disk shelf an "Infiniband connection", even if it is using Infiniband connectors and cables, it is simply an SAS connection.JohanAnandtech - Tuesday, December 23, 2008 - link
Well, the physical layer is Infiniband, the used protocol is SCSI. I can understand calling it an "infiniband connection" maybe confusing, but the cable is an infiniband cable.shank15217 - Friday, December 26, 2008 - link
Anand, I think the above poster is right. The Adaptec RAID 5805 uses SFF-8087 connectors but the protocol is SSP (Serial SCSI Protocol). Infiniband is a physical layer protocol that shares the same connector as SAS but they are not the same. Nothing in the Adaptec RAID 5805 spec mentions Infiniband as a supported protocol.http://www.adaptec.com/en-US/products/Controllers/...">http://www.adaptec.com/en-US/products/C...ers/Hard...
niva - Tuesday, December 23, 2008 - link
I'm not sure you can run your same ol benchmark for rendering, and I'd really like more insight into what you guys are rendering and if it's indeed using all 16/24(six core 4 point system)/32(hyperthreading) cores on the system.What renderer, what scene, details details...
These chips get gobbled up by render farms and this is indeed where they can really flex their muscles to the fullest.
JohanAnandtech - Tuesday, December 23, 2008 - link
Just click on the link under "we have performed so many times before" :-)akinneyww - Tuesday, December 23, 2008 - link
I read DailyTech and anandtech.com to keep up with the latest in IT. I appreciate the thought that has gone into putting together this article. I would like to see more articles like this one.Jammrock - Tuesday, December 23, 2008 - link
The VMware results shocked me the most. I know AMD has been working hard on the virtualization sector and it looks like their work has paid off.classy - Tuesday, December 23, 2008 - link
With the rapid increase of virtualization, AMD is looking really strong. We have begun using 3.5 Vmware and are expanding the use of it. Virtualization is truly becoming a big thing in server choice.