The Lynnfield Preview: Rumblings of Revenge
by Anand Lal Shimpi on May 29, 2009 1:00 PM EST- Posted in
- CPUs
The First Lynnfield Sample
Let me preface this with the usual disclaimer. Intel did *not* supply me with this chip and it is most definitely pre-production silicon, not necessarily indicative of final, shipping performance.
With that out of the way, here is Lynnfield:
Lynnfield (front) vs. Bloomfield (back)
Core i7-Bloomfield (left) vs. Lynnfield (right)
It’s a lot smaller than the LGA-1366 Core i7, but compared to current Core 2 Quads it’s actually similar in size:
LGA-775 Core 2 Duo (left) vs. LGA-1156 Lynnfield (right)
Flipping the chips over you see that Lynnfield has a much higher pad density, enabling Intel to fit 1156 pads in about the same space as it fit 775 pads just a few years prior.
Core 2 (left) vs. Lynnfield (right)
Once more, I’ve blanked out all of the caps and other markings on the chip to protect the innocent.
The initial Lynnfield samples were all clocked at 2.13GHz with HT enabled. Turbo mode was also enabled but it too was a meager 2.26GHz regardless of how many cores were active. All of this was to enable motherboard manufacturers to test compatibility and performance of their P55 without giving away Lynnfield’s true performance.
Unfortunately this is the sample I tested with. Thankfully it was healthy enough for me to overclock the BLCK to 166MHz, resulting in a 2.66GHz frequency. Turbo mode was still stuck at a 1x increase over the stock frequency, so final Lynnfield performance should be much better in single and dual threaded apps than what you’ll see here today.
The results on the coming pages show three configurations. Lynnfield running at 2.13GHz with HT enabled, 2.66GHz with HT enabled and 2.66GHz with HT disabled. The latter is going to be the closest to actual Lynnfield performance (albeit still far away thanks the sample’s crippled turbo mode), the 2.66GHz with HT enabled just shows how much we gain from HT and the 2.13GHz chip is an experiment in seeing how low Intel could drop these things and still have a competitive part.
If you thought Nehalem needed Hyper Threading to be a strong performer, you were dead wrong.
Comments About Lynnfield's Readiness
The current rumors in the press are that Lynnfield is being held back in order to clear out excess Core 2 Quad inventory before it ships, because once this thing ships no one is going to want a Penryn anymore. Based on what I've seen, Lynnfield isn't ready just yet - it's not an artificial delay.
The motherboards are in rough shape, CF/SLI isn't working and we're still at very early revs of the CPU's silicon. While I think that the chip will be ready far in advance of its rumored September shipdate, the CPU and motherboards aren't yet.
The Test
Once more: the CPU we've tested here is pre-production silicon without all of its turbo modes enabled. I expect final, shipping performance to be higher in some cases.
| Motherboard: | Pre-release P55 Motherboard (Intel P55) Intel DX58SO (Intel X58) Gigabyte GA-MA790FX-UD5P (AMD 790FX) |
| Chipset: | Intel P55 |
| Chipset Drivers: | Intel 9.1.1.1012 (Intel) AMD Catalyst 8.12 |
| Hard Disk: | Intel X25-M SSD (80GB) |
| Memory: | Qimonda DDR3-1066 4 x 1GB (7-7-7-20) Corsair DDR3-1333 2 x 2GB (7-7-7-20) |
| Video Card: | eVGA GeForce GTX 280 |
| Video Drivers: | NVIDIA ForceWare 180.43 (Vista64) NVIDIA ForceWare 178.24 (Vista32) |
| Desktop Resolution: | 1920 x 1200 |
| OS: | Windows Vista Ultimate 32-bit (for SYSMark) Windows Vista Ultimate 64-bit |
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ssj4Gogeta - Friday, May 29, 2009 - link
There's always the dual-core Nehalem Clarkdale for the mainstream market. And I think they'll launch lower clock Lynnfields too, like Anand said.I think Intel did a good job by separating its high-end processors from the mainstream ones and launching them as a different series. So now instead of having one $1200 extreme part, we have 3 high-end parts, with the lowest priced one a very affordable option for geeks who are on a budget.
ssj4Gogeta - Friday, May 29, 2009 - link
Congratulations Intel, you've created a beast.What is AMD going to do now? I don't think they have any new cores ready for launch this year. If Lynnfield offers the same performance as i7 920 for Phenom II prices, AMD will either have to bump up their clock speeds ridiculously, or lower their prices yet again. Things aren't looking good for AMD. Lynnfield turns out to be better than I expected.
And I HATE Intel and their tick-tock. Actually I can't decided whether to hate or like it. It's good that they're advancing our planet's technology at a really fast pace so we'll be prepared when aliens attack. But which damn processor do I buy??? They launch a new series every year, and a new stepping every few months. Which one to buy? WHEN to buy??? My parents won't buy me processors every 6 months!
MadMan007 - Friday, May 29, 2009 - link
You could always do what people did back in the day - upgrade when your current hardware no longer does what you need it to do. I know, crazy right!?Griswold - Friday, May 29, 2009 - link
Its only a crazy concept if daddy is paying for those upgrades all the time - you and the rest of us know its the right thing to do. :]Jaramin - Friday, May 29, 2009 - link
Looking at AMD's roadmap, I fear this is going to hurt a lot :( If the pricing is good, it could confine AMD into the lower mainstream segment.Hyperion1400 - Friday, May 29, 2009 - link
That remains to be seen. Don't Istanbul heading for market at around the same time as Core-i5. There has been little information leaked about Istanbul and no performance numbers have come to light. So, as of now, it is impossible to predict how competitive AMD's offerings will be. Not to mention we have Magny Cours to look forward too in 1H 2010.ssj4Gogeta - Friday, May 29, 2009 - link
But Istanbul is just a 6-core Opteron. In other words, a server chip.Hyperion1400 - Saturday, May 30, 2009 - link
As was Barcelona and Shanghai. But, that didn't seem to stop them from releasing them on the main stream market.Spoelie - Saturday, May 30, 2009 - link
but costs would be too prohibitivePhII is already similar in die size as bloomfield, and is forced to be priced lower for competitive reasons.
You think AMD won't be hurting if it sells an even larger die to compete with a smaller-than-bloomfield die, in a market where having more than 6 cores is questionable value at best?
No, only thing amd can do is crank up clock speeds, try to get 3.4 and 3.6ghz models out the door
Spoelie - Saturday, May 30, 2009 - link
Oh and up the uncore clock on them as well, preferably 2.4ghz, but might make them look worse in power consumption comparisons