Intel Xeon E5-4600 lineup detailed

Xeon E5 group of families was launched earlier this month. The first released microprocessors were from E5-1600 and E5-2600 sub-families, aimed at single- and dual-processor servers, and compatible with socket 2011. In the Q2 Intel will introduce another Xeon E5 series for socket 2011, dubbed as E5-4600, that will support quad-CPU configurations. Unlike 1600 and 2600 series, where we knew full lineup specifications and prices well ahead of launch, we didn't know as much about Xeon E5-4600 series. We do know about their OEM and box part numbers, and last month we discovered partial specifications of E5-4620 and E5-4650 SKUs on ASRock website. We now have more details about Xeon E5-4600 lineup, including processor numbers, cache sizes, frequencies and supported technologies.

Xeon E5-4600 series will consist of 8 models with 4, 6, and 8 CPU cores, and with the size of L3 cache ranging from 10MB to 20 MB. The processors will be built on Sandy Bridge-EP 4S core, and, with minor exceptions, will support all Sandy Bridge technologies, such as Turbo Boost, AES and Trusted Execution technology. Thermal Design Power of E5-4600 processors will range from 95 Watt for slower chips, and up to 130 Watt for high-performance models.

Entry-level E5-4603 is a quad-core CPU with Hyper-Threading support, 2 GHz clock speed and 10 MB L3 cache. This model will not support Turbo Boost.

Second entry-level model, also lacking Turbo Boost technology, is a six-core E5-4607. This Xeon supports Hyper-Threading, runs at 2.2 GHz and packs larger 12 MB last level cache. Both E5-4603 and E5-4607 will fit into 95 Watt thermal envelope, and support DDR3-800 and DDR3-1066 memory.

Xeon E5-4610 and E5-4617 will have 6 CPU cores, and 15 MB level 3 cache. The chips will operate at 2.4 GHz and 2.9 GHz respectively, and have 95W and 130W TDP. We believe that the 4617 will not support Hyper-Threading. Unfortunately, we cannot tell it sure because our source provides conflicting information on this part.

Xeon E5-4620, E5-4640, E5-4650 and E5-4650L are 8-core microprocessors, featuring all available Sandy Bridge technologies. Xeon E5-2620 incorporates 16 MB L3, and remaining chips have 20 MB cache. Frequencies of these 4 models range from 2.2 GHz for the 2620, and up to 2.7 GHz for the E5-4650. For specifications of these and other E5-4600 CPUs please see below:

Model	Cores	Threads	Frequency	L3 cache	Memory	TDP
Xeon E5-4603	4	8	2 GHz	10 MB	DDR3-1066	95 Watt
Xeon E5-4607	6	12	2.2 GHz	12 MB	DDR3-1066	95 Watt
Xeon E5-4610	6	12	2.4 GHz	15 MB	DDR3-1333	95 Watt
Xeon E5-4617	6	6	2.9 GHz	15 MB	DDR3-1600	130 Watt
Xeon E5-4620	8	16	2.2 GHz	16 MB	DDR3-1333	95 Watt
Xeon E5-4640	8	16	2.4 GHz	20 MB	DDR3-1600	95 Watt
Xeon E5-4650	8	16	2.7 GHz	20 MB	DDR3-1600	130 Watt
Xeon E5-4650L	8	16	2.6 GHz	20 MB	DDR3-1600	115 Watt