- AMD Rolls Out Low-power Quad-core Opteron CPUs
- 65 Nm GPUs For Xbox 360 In Production, Xbox '540' Coming In 2009
- Apple May Have Been An Investor In P.A. Semi Before Acquisition
- Intel, SGI To Build 10 PFlops Supercomputer For NASA
- AMD Announces 6 And 12-core Opterons
- Intel To Launch 4-series Chipsets At Computex 2008
- Intel And Nvidia Co-sponsors In Parallel Programming Initiative
- Intel Denies iMac CPU Rumors
- AMD Promises New CPU Architecture Soon
- FSB Limits Exposed: Intel CPUs Don't Scale Very Well In UC Berkeley...
- Anand does Nehalem!!!
- E8400 vs. Q9450 vs. Q6600
- So... Do I stay with AMD or make the move to INTEL???
- Kuma cancelled.
- Wait for Nehalem?
- Intel to drop overclocking for mainstream Nehalems
- Optical Motherboards
- Is it worth spending the extra on a P35 board?
- A 4.1 GHz Dual Core at $130 - Can it be True?
- Looking for advice
Source: Tom's Hardware US – Keywords: Intel, Nehalem, cpu
Categories: INTEL
Syndication:
Chicago (IL) - Intel’s switch to an integrated memory controller with the upcoming Nehalem core will offer enthusiasts to finally take advantage of fast memory devices - which are constrained by the front side bus (FSB) today. The memory controller bandwidth is catching up with performance memory, which means that we should see dramatically improved memory performance one the new CPU arrives.
The performance memory industry is alive and kicking these days, despite the fact that the advantages of higher clock speeds, which currently reach to 2000 MHz, are fading and are virtually non-existent, at least on Intel platforms. The simple reason is that the memory bandwidth is constrained by the FSB, which limits the bandwidth to 8.53 GB/s in a 1066 MHz FSB (266 MHz QDR), to 10.66 GB/s in a 1333 MHz (333 MHz QDR) version and 12.8 GB/s in those rare 1600 GHz (400 MHz QDR) models.
However, dual-channel memory can offer a bandwidth that exceeds what FSB can take: 12.8 GB/s (DDR2-800) to 32 GB/s (DDR3-2000). Even if you buy those ultra-expensive DDR3-2000 devices you won’t see a dramatic increase in performance, at least if you don’t overclock the FSB at the same time. To support that 32 GB/s bandwidth, you would need a CPU capable of running a 4 GHz FSB (1000 QDR).
Intel Nehalem architecture uses 64-bit memory controllers that are directly connected within the CPU silicon, eliminating those "FSB brakes". Expect you bandwidth utilization jumps from current 50-60% to 90%.
Industry sources now indicated that the mainstream Nehalem processor code-named Lynnfield will be able to almost double the memory bandwidth - to about 18.5-20.1 GB/s when DDR3-1333 modules are used.
If you own or plan to buy DDR3 memory, prepare yourself mentally and financially for Nehalem. Intel is currently preparing two different desktop parts: Bloomfield will become the new Core Extreme and feature a triple-DDR3 controller. Using three or six DDR3-1333 modules you should be able to achieve 30 GB/s, while Lynnfield will arrive in Q1 2009 and offer a regular dual-channel DDR3-1333 controller.
So, keep the modules, and wait for their time. It will come.
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From what I have read Bloomfeild will be high to extreme which would be like the Intel E8xxx and Q6/Q9xxx series to the EE models not just the EE models.
So to respond to the first post yes to get triple channel you would need at least 3 sticks of RAM which I am sure Corsair and such will make packs for those as well as packs of 6 for the max amount you can fit on those mobos, maybe bigger than 8GB say 12GB?
And of course the Lynnfield will support just dual-channel so it will require only 2 sticks for the added performance. Not sure how this has confused you.
o.O
I would rather say "Don't waste your money buying the modules now, just wait until there's some use for them and they get cheaper."