Our power consumption data is preliminary. We really have to doublecheck all the power data. Very roughly, we find that the Opteron 2435 machine consumes about 35-45W less than the Xeon X5570. On a total of slightly more than 300W, that is about 10 to 15%. Idle power seems to be slightly in favor of the Xeon “Nehalem”. We’ll update this data in our next article.
As always we do an analysis based on what the servers are bought for. There are quite a few fields that we have not covered in this article, but with the exception of the ERP benchmarks, those markets are hardly relevant. HT assist might improve bandwidth in a quad-socket configuration, but must be disabled in a 2P configuration. As a result the six-core has less bandwidth per core, which means that most of the HPC application will not perform better. The infrastructure market is looking for as much memory as possible, not for more processing power with the same amount of memory.
So there is only piece really missing in the puzzle: the ERP results. The SAP benchmarks are not that hard to predict: The six-core Opteron will probably improve the SAP score by 25 to 35% over a 2.7 Ghz quad-core Opteron 2389. This will not threaten the dominant position of the Nehalem Xeons which are up to 81% faster than the latter.
|Server Software Market||Importance||Benchmarks Used||Effect of 2 extra cores (Istanbul vs Shanghai)||Intel Xeon X5570 2.93 vs Opteron 2435 2.6|
|ERP, OLTP||10-14%|| |
SAP SD 2-tier (Industry Standard benchmark)
Oracle Charbench (Free available benchmark)
Not known yet
Not known yet
|Reporting, OLAP||10-17%||MS SQL Server (Realworld vApus benchmark)||+46%||16%|
|Collaborative email, DC, file/print||14-18% |
|MS Exchange Loadgen (MS own load generator for MS Exchange)|| |
|Web||10-14%||MCS eFMS (Realworld vApus benchmark)||-3%||14%|
|LS-DYNA (Industry Standard) |
3DSMax (Our own bench)
|Virtualization||50%||VMmark on ESX 4.0 (Industry Standard) |
vApus Mark I on ESX 3.5
vApus Mark I on ESX 4
|+/- 51% |
The OLTP-market is also firmly in Intel's grasp. Things look better in our website benchmark, until you remember that a single Xeon X5570 performs just as well as dual six-core Opteron. That leaves two markets: Decision Support Databases and servers bought for virtualization. But that last one is incredibly important…