Details on Intel Xeon E5-1600 series processors
This year Intel already launched two lines of Xeon E-branded microprocessors, E3 for one-way servers, and E7 for multi-processor systems. In the 4th quarter of this year Intel will introduce yet another E-branded series, Xeon E5. The E5 line will be comprised of four families, E5-1600, E5-2400, E5-2600, and E5-4600. One of the families, Xeon E5-1600, is going to support only single processor configuration, but it's not intended as a replacement for Xeon E3 products. The E3-1200 microprocessors target value and mainstream sections of the uniprocessor server market, whereas the E5-1600 CPUs are aimed for extreme performance part of that market. The single-processor E5 family will consist of three models, E5-1620, E5-1650, and E5-1660.
Xeon E5-1620 is a quad-core chip with 3.6 GHz clock speed and 10 MB L3 cache. Two other Xeons, E5-1650 and E5-1660, feature 6 CPU cores, although their clock frequencies are lower than on the E5-1620. The E5-1650 SKU runs at 3.2 GHz, and has 12 MB level 3 cache. The Intel E5-1660 has 3.3 GHz stock frequency and 15 MB last level cache.
Looking at the specifications, you may notice that they resemble very closely the specs of i7-3xxx extreme processors with Sandy Bridge-E core. Like the i7-3xxx CPUs, Xeon E5-1600 products incorporate all standard and advanced Sandy Bridge features, including Hyper-Threading, Turbo Boost, Trusted Execution, VT-c/d/x, as well as AES and AVX instructions. The E5 chips integrate quad-channel memory controller, and support DDR3 memory with data rates up to 1600 MHz. All three models fit 130 Watt thermal envelope, require socket R (socket 2011) motherboards, and will be coupled with C600-series chipset. The E5-1600 series will be launched in the fourth quarter 2011.
Confirmed details of upcoming Xeon microprocessors are summarized in the table below.
| Model | Cores | Threads | Frequency | L3 cache | TDP |
|---|---|---|---|---|---|
| Xeon E5-1620 | 4 | 8 | 3.6 GHz | 10 MB | 130 Watt |
| Xeon E5-1650 | 6 | 12 | 3.2 GHz | 12 MB | 130 Watt |
| Xeon E5-1660 | 6 | 12 | 3.3 GHz | 15 MB | 130 Watt |
Feb 28, 2012: Launch dates of Xeon processors
Feb 13, 2012: New Intel Sandy Bridge-EP CPUs spotted
Jan 07, 2012: Intel Xeon E5 CPUs surfaced on Intel website
Oct 10, 2011: Launch schedule of Intel Xeon E5 microprocessors
Sep 19, 2011: Prices of Intel Xeon E5-1600 series CPUs
Aug 26, 2011: Intel to launch Xeon E5-2600 series in Q4 2011
Feb 08, 2011: Details on Intel Xeon E5 product families
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When you say, "Like the i7-3xxx CPUs, Xeon E5-1600 products incorporate all standard and advanced Sandy Bridge features, including Hyper-Threading, Turbo Boost, Trusted Execution, VT-c/d/x, as well as AES and AVX instructions," I thought so too. Then I read that C2 stepping would correct the VT-d SB-E problems. But this is not the case for the K and X parts. They do not include VT-d or Trusted Execution. So disappointing.
Please see the ARK.
I do not understand why Intel disables it for these high-end, expensive parts.
The article was based on preliminary information, that was partially correct. Please not that it was written long before the i7-3xxx processors were released, i.e. long before the final specifications were added to ARK database.