Xeon E5-2620 v2 vs Xeon E5-2609 v2

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tazz85

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I'm planning for a VMWare ESXi build in which I'm going to study couple OS-es:
These I will run simultaeonously:
1. up to 3 Domain Controllers
2. 1 machine running SCCM 2012
3. up to 3 VM for testing purposes with Windows 7/8

For now I won't be using Exchange server.

I want to know if E5-2609 v2 will be enough - because it's 70 Euro less and I want to spend more money on RAM and SSD.

E5-2620 v2 has 15MB cache/2.0GHz/80W 6C/12HT Turbo Boost
E5-2609 v2 has 10MB cache/2.5GHz/80W 4C no HT and Turbo Boost

Motherboard will be with 2 CPU's and if I'm in need I will add 2nd CPU. Possibly some Supermicro.
 
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MU_Engineer

MU_Engineer

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Generally it is best to avoid the Intel Xeon CPUs with an "0" as the third number (like the E5-2609) as they are notoriously crippled compared to other Xeon CPUs. The E5-2609 also has a slower memory controller and lower QPI bus speeds compared to the E5-2620. Your workload sounds reasonably multithreaded and I'd certainly want the extra cores and bus/memory throughput of the E5-2620.

If you want to save money, I'd look at going to a 16-core AMD Opteron setup before I'd get of the crippled Xeons. IIRC you can get a 16-core Opteron like the 6274 or 6276 for about what a 6-core E5-2620 costs.
 
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tazz85

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OK, but comparing to E3-1230v3 E5-2609 will be better in my case or no? E5 has quad-channel memory controller. and will I need it in my case? I plan byuing SuperMicro motherboard with 2 CPU sockets and in future to buy 2nd CPU.
 
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MU_Engineer

MU_Engineer

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The E3-1230 v3 will be a reasonably faster chip than the E5-2609 v2 provided that you do not need more than 32 GB of RAM. The E3 has the same number of cores as the E5 but it is clocked about a full GHz faster, the E3 has HyperThreading activated, plus the E3's newer Haswell cores are a little faster clock for clock than the E5's Ivy Bridge cores.

The only advantages of the E5 are that it comes in LGA2011 vs. LGA1150, it can be used in dual-CPU setups, and that it supports registered memory which the E3 line does not. The LGA2011 platform allows for much more memory per CPU than the LGA1150 platform (approximately three times the capacity) and allows for multiple CPU operation. I'd go with the E5 only if you intend to upgrade the E5-2609v2 to a pair of much better E5s in the near future. Otherwise the E3 will be faster and much less expensive, especially once you figure a dual socket LGA2011 board is about 2-3x as much as a single LGA1150 board.
 
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