Intel's product database has been updated, and it now shows five new Xeon Phi co-processors. These five are followups of the original Xeon 5110P, SE10P, and SE10X models. Two lighter Xeon Phi 3100 parts have shown up: a mid-end part, the 5120D, and two premium 7100 series parts.
For those who don't know what a co-processor is, in the case of these Xeon Phi co-processors, it is simply an x86 based processor slammed onto a PCIe 8x expansion card. The purpose of them is to increase processing power for desktops and servers, specifically for tasks that have to be executed by a processor, not a graphics card.
The Xeon Phi co-processors are quite different from the standard CPUs we know. They feature more than 50 processing cores and have 8 GB of GDDR5 memory aboard the PCB. Just like the Ivy Bridge parts, they are baked on a 22 nm lithography. Due to the onboard memory in combination with an x86 processor, the device can even work as a fully independent computer, with tasks coming in through the PCIe interface, and only sent out and returned once completed.
| Model | Cores | CPU Clock | L2-cache | GDDR5 Speed | Memory | Interface | GFlops | TDP |
|---|---|---|---|---|---|---|---|---|
| SE10P/X | 61 | 1.10 GHz | 30.5 MB | 5.5 GHz | 8 GB | 512 bit | 1073 GFlops | 300W |
| 5110P | 60 | 1.05 GHz | 30 MB | 5.0 GHz | 8 GB | 512 bit | 1011 GFlops | 225W |
| 5120D | 60 | 1.05 GHz | 30 MB | 5.5 GHz | 8 GB | 512 bit | 1011 GFlops | 245W |
| 7120P/X | 61 | 1.25 GHz | 30.5 MB | 5.5 GHz | 8 GB | 512 bit | 1220 GFlops | 300W |
| 3120A/P | 57 | 1.10 GHz | 28.5 MB | 5.0 GHz | 6 GB | 384 bit | 1003 GFlops | 300W |
* Table courtesy of Hardware.info.
The main differences between the current Xeon Phi co-processors and the previous ones are the Xeon CPUs that are aboard, as well as the cooling blocks. Any model with the extension "*P" in the name has the passively cooled cooler, while others have the active drum cooler. The "*D" will not ship with a cooler.
A rumor indicates that the new Xeon Phi co-processors might even still hit the market this month, but it remains unverified.
