Expreview found the first benchmarks of Intel's upcoming Core i5 (Lynnfield) processor at Chinese hardware site ChipHell. Lynnfield is a cheaper LGA1160 version of the Nehalem processor. The quad-core chip has 8 threads (with HT), 8MB L3 cache, integrated memory controller and Turbo Boost just like the Core i7 (Bloomfield), but it doesn't have QPI and lacks support for triple channel DDR3 memory. Lynnfield systems will use dual channel DDR3, and another difference is that Lynnfield has an on-die PCI Express controller. The launch date of Lynnfield is sometime in the second half of 2009 and these chips should be available for less than $200.
The tests were done on a development system with a Intel Lynnfield clocked at 2.13GHz, DDR3-1066 (4GB + 2GB) notebook memory, a NVIDIA Quadro NVS290 PCIe x1 workstation graphics card, 7200RPM 160GB notebook HDD, Windows Vista 64-bit and a 135W 19.5V 6.9A AC adapter.
You can check out the benchmarks over here
, but keep in mind that the mature hardware is still more than a half year away from us. The retail parts will likely be faster than what you see in these preliminary benchmarks.