New Intel Sandy Bridge-EP CPUs spotted
This quarter Intel plans to introduce Xeon E5-1600 products for uni-processor systems, based on Romley (socket 2011) platform. We originally reported on three E5-16xx quad-, 6- and 8-core models. Our reader Rob Dunkley spotted two new entry level Xeon E5 microprocessors, and complete list of Xeon E5-2600 SKUs, on Fujitsu CELSIUS M720 configuration page. Specifications on the configuration page are incomplete, but we were able to find more details elsewhere. Xeon E5-1603 and E5-1607 were briefly added to CPU support lists for ASRock socket 2011 motherboards. Information is already removed from ASRock website, however it is still available in Google cache:
Click on the image to zoom
The CPU support list contains specifications of Xeon E5-1603 and E5-1607, along with details on two members of E5-4600 series, E5-4620 and E5-4650. Characteristics of remaining E5 processors from the page match our older reports.
Based on data that we discovered, Xeon E5-1603 and E5-1607 operate at 2.8 GHz and 3 GHz respectively. The processors have 4 CPU cores, which can be found on other Fujitsu-shop.pl pages (like this one). Both Xeons have 10 MB L3 cache, and 130 Watt Thermal Design Power. We suspect that similar to Xeon E5-240x and E5-260x products, E5-1603 and E5-1607 will not support Hyper-Threading and Turbo Boost technologies.
Xeon E5 4600-series is aimed at 4-way servers, and it is supposed to launch in Q2 2012. Last month Intel made public s-spec and box part numbers of E5-4600-series CPUs, although specifications of any of those chips were not known up until now. ASRock CPU support list provides partial details for E5-4620 and E5-4650 SKUs. Xeon E5-4620 comes with 2.2 GHz clock speed and 16 MB L3 cache, and it fits into 95 Watt thermal envelope. Xeon E5-4650 is clocked at 2.7 GHz, and has 20 MB last level cache and 130 Watt TDP. Both CPUs are based on Sandy Bridge-EP-8, and we suspect that the 4620 model will have either 6 or 8 CPU cores, and the 4650 will have 8 cores. We also believe that these Xeon E5s will support Hyper-Threading and Turbo Boost technologies.
Details of new E5-1600 and E5-4600 parts are summarized in the table below. Highlighted information is not confirmed:
| Model | Cores | Threads | Frequency | L3 cache | TDP |
|---|---|---|---|---|---|
| Xeon E5-1603 | 4 | 4 | 2.8 GHz | 10 MB | 130 Watt |
| Xeon E5-1607 | 4 | 4 | 3 GHz | 10 MB | 130 Watt |
| Xeon E5-4620 | 6 or 8 | 12 or 16 | 2.2 GHz | 16 MB | 95 Watt |
| Xeon E5-4650 | 8 | 16 | 2.7 GHz | 20 MB | 130 Watt |
Mar 30, 2012: Intel Xeon E5-4600 lineup detailed
Mar 14, 2012: OEM and embedded Intel Xeon E5 CPUs are launched
Oct 10, 2011: Launch schedule of Intel Xeon E5 microprocessors
Jul 28, 2011: Details on Intel Xeon E5-1600 series processors
May 04, 2011: Intel Xeon E5-1600 and E5-2600 processor details
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M0 M1 C0 C1 C2 steppings differences
What do the different steppings mean? What is the difference between M1 and C2? 3820 is just new, but not C2?
It looks like Intel has different core revisions M0 / M1 for quad-core processors, and C1 / C2 for six and 8-core processors. I have no idea what's the difference between M0 and M1, and C1 and C2.
vt-d
Speculation arised when intel updated ark that shows C1 without vt-d support (virtual machine i/o stuff).
After that it was seen that without it Xeons would be pretty bad and that Intel delayed official release for them after fix for it. Needless to say Xeons are for servers and having the best possible virtualization support is needed todays IT world. So short C2 = C1 + vt-d (and possible other fixes we shall see once papers are released)