Algumas noticias do core i5 Lynnfield que achei interessantes :
Core i5 details leaked
While there’s no doubt that Intel’s Core i7 CPUs lead the field when it comes to performance, that power comes at a price. Performance enthusiasts on a budget have been patiently waiting for the cheaper Nehalem derivative Core i5 pieces to be officially announced.
The Core i5 (codenamed Lynnfield) is basically a Core i7 part with the third memory channel removed and the QuickPath interconnect dumped and replaced by a cheaper Direct Media Interface. These parts aren’t far off now given that we saw plenty of P55 chipset motherboards (which feature the LGA1156 socket) at CeBit this year but Intel is still tight-lipped. However, tech site
HKEPChas what is claimed to be speeds and pricing for the first batch of Core i5 processors.
There’s three pieces listed:
- 2.66GHz, $196
- 2.80GHz, $284
- 2.93GHz, $562
For comparison, the Core i7 920 which ticks along at 2.66GHz retails for about $290 while the 2.93GHz 940 sells for $560. Given that the prices for the i5 parts quoted here seems rather high.
Like the Core i7 silicon, these pieces pack 8MB of L3 cache, and feature both HyperThreading and TurboBoost technology. The TDP is down from 130W that was standard for the i7 to a cooler 90W.
Core i5 Will Have A Lower QPI Multiplier
A few days ago, sources have revealed to us, Intel’s Core i5 (Lynnfield) will feature a lower QPI multiplier than Core i7. Intel’s 5 Series mobos will be switched to single-chip design, and the PCIE 2.0 controller will be integrated into the CPU. Even this they use QPI bus inside the CPU to connect the PCIE interface, and use the DMI bus to connect with the ICH.
As we know, QPI restricts the CPU’s overclocking performance. Take the Core i7 965 as an example, it comes with 6.4GT/s QPI data rate, 24x multiplier and 133MHz BCLK. Due to the limit of QPI speed (8GT/s), its maximum BCLK can only achieve 166MHz at 24x.
But according to our source, the QPI multiplier of Core i5 will be set lower at 16x, so you’ll get a higher BCLK around 250MHz. When you overclock the BCLK, the QPI interface will overclock as well.
Vamos la ver como vai saír esta nova cartada da Intel.
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Lynnfield, a processor based on Nehalem, has integrated with memory controller and 8MB L3 cache, supporting technologies such as Turbo Boost. However, it doesn’t utilize QPI, which makes it different from Core i7 (Bloomfield). Lynnfield features mature DMI (Direct Media Interface), and only supports dual-channel DDR3 memory. As for the structure, it uses LGA1160 (updated to LGA1156 later) socket, while Core i7 used LGA1366.
