The Lineup

I don’t include a lot of super markety slides in these launch reviews, but this one is worthy of a mention:

Sandy Bridge is launching with no less than 29 different SKUs today. That’s 15 for mobile and 14 for desktop. Jarred posted his full review of the mobile Core i7-2820QM, so check that out if you want the mobile perspective on all of this.

By comparison, this time last year Intel announced 11 mobile Arrandale CPUs and 7 desktop parts. A year prior we got Lynnfield with 3 SKUs and Clarksfield with 3 as well. That Sandy Bridge is Intel’s biggest launch ever goes without saying. It’s also the most confusing. While Core i7 exclusively refers to processors with 4 or more cores (on the desktop at least), Core i5 can mean either 2 or 4 cores. Core i3 is reserved exclusively for dual-core parts.

Intel promised that the marketing would all make sense one day. Here we are, two and a half years later, and the Core i-branding is no clearer. At the risk of upsetting all of Intel Global Marketing, perhaps we should return to just labeling these things with their clock speeds and core counts? After all, it’s what Apple does—and that’s a company that still refuses to put more than one button on its mice. Maybe it’s worth a try.

Check Jarred’s article out for the mobile lineup, but on desktop here’s how it breaks down:

Processor Core Clock Cores / Threads L3 Cache Max Turbo Max Overclock Multiplier TDP Price
Intel Core i7-2600K 3.4GHz 4 / 8 8MB 3.8GHz 57x 95W $317
Intel Core i7-2600 3.4GHz 4 / 8 8MB 3.8GHz 42x 95W $294
Intel Core i5-2500K 3.3GHz 4 / 4 6MB 3.7GHz 57x 95W $216
Intel Core i5-2500 3.3GHz 4 / 4 6MB 3.7GHz 41x 95W $205
Intel Core i5-2400 3.1GHz 4 / 4 6MB 3.4GHz 38x 95W $184
Intel Core i5-2300 2.8GHz 4 / 4 6MB 3.1GHz 34x 95W $177
Intel Core i3-2120 3.3GHz 2 / 4 3MB N/A N/A 65W $138
Intel Core i3-2100 2.93GHz 2 / 4 3MB N/A N/A 65W $117

Intel is referring to these chips as the 2nd generation Core processor family, despite three generations of processors carrying the Core architecture name before it (Conroe, Nehalem, and Westmere). The second generation is encapsulated in the model numbers for these chips. While all previous generation Core processors have three digit model numbers, Sandy Bridge CPUs have four digit models. The first digit in all cases is a 2, indicating that these are “2nd generation” chips and the remaining three are business as usual. I’d expect that Ivy Bridge will swap out the 2 for a 3 next year.

What you will see more of this time around are letter suffixes following the four digit model number. K means what it did last time: a fully multiplier unlocked part (similar to AMD’s Black Edition). The K-series SKUs are even more important this time around as some Sandy Bridge CPUs will ship fully locked, as in they cannot be overclocked at all (more on this later).

Processor Core Clock Cores / Threads L3 Cache Max Turbo TDP
Intel Core i7-2600S 2.8GHz 4 / 8 8MB 3.8GHz 65W
Intel Core i5-2500S 2.7GHz 4 / 4 6MB 3.7GHz 65W
Intel Core i5-2500T 2.3GHz 4 / 4 6MB 3.3GHz 45W
Intel Core i5-2400S 2.5GHz 4 / 4 6MB 3.3GHz 65W
Intel Core i5-2390T 2.7GHz 2 / 4 3MB 3.5GHz 35W
Intel Core i5-2100T 2.5GHz 2 / 4 3MB N/A 35W

There are also T and S series parts for desktop. These are mostly aimed at OEMs building small form factor or power optimized boxes. The S stands for “performance optimized lifestyle” and the T for “power optimized lifestyle”. In actual terms the Ses are lower clocked 65W parts while the Ts are lower clocked 35W or 45W parts. Intel hasn’t disclosed pricing on either of these lines but expect them to carry noticeable premiums over the standard chips. There’s nothing new about this approach; both AMD and Intel have done it for a little while now, it’s just more prevalent in Sandy Bridge than before.

More Differentiation

In the old days Intel would segment chips based on clock speed and cache size. Then Intel added core count and Hyper Threading to the list. Then hardware accelerated virtualization. With Sandy Bridge the matrix grows even bigger thanks to the on-die GPU.

Processor Intel HD Graphics Graphics Max Turbo Quick Sync VT-x VT-d TXT AES-NI
Intel Core i7-2600K 3000 1350MHz Y Y N N Y
Intel Core i7-2600 2000 1350MHz Y Y Y Y Y
Intel Core i5-2500K 3000 1100MHz Y Y N N Y
Intel Core i5-2500 2000 1100MHz Y Y Y Y Y
Intel Core i5-2400 2000 1100MHz Y Y Y Y Y
Intel Core i5-2300 2000 1100MHz Y Y N N Y
Intel Core i3-2120 2000 1100MHz Y N N N N
Intel Core i3-2100 2000 1100MHz Y N N N Y

While almost all SNB parts support VT-x (the poor i3s are left out), only three support VT-d. Intel also uses AES-NI as a reason to force users away from the i3 and towards the i5. I’ll get into the difference in GPUs in a moment.

Introduction Overclocking: Effortless 4.4GHz+ on Air
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  • RagingDragon - Monday, January 03, 2011 - link

    Or perhaps CPU overclocking on H67 is not *officially* supported by Intel, but the motherboard makers are supporting it anyway? Reply
  • IanWorthington - Monday, January 03, 2011 - link

    Seems to sum it up. If you want both you have to wait until Q2.

    <face palm>
    Reply
  • 8steve8 - Monday, January 03, 2011 - link

    so if im someone who wants the best igp, but doesn't want to pay for overclockability, i still have to buy the K cpu... weird. Reply
  • beginner99 - Monday, January 03, 2011 - link

    yep. This is IMHO extremely stupid. Wanted to build a PC for someone that mainly needs CPU power (video editing). An overclocked 2600k would be ideal with QS but either wait another 3 month or go all compromise...in that case H67 probably but still paying for K part and not being able to use it.
    Intel does know how to get the most money from you...
    Reply
  • Hrel - Monday, January 03, 2011 - link

    haha, yeah that is stupid. You'd think on the CPU's you can overclock "K" they use the lower end GPU or not even use one at all. Makes for an awkward HTPC choice. Reply
  • AkumaX - Monday, January 03, 2011 - link

    omg omg omg wat do i do w/ my i7-875k... (p.s. how is this comment spam?) Reply
  • AssBall - Monday, January 03, 2011 - link

    Maybe because you sound like a 12 year old girl with ADHD. Reply
  • usernamehere - Monday, January 03, 2011 - link

    I'm surprised nobody cares there's no native USB 3.0 support coming from Intel until 2012. It's obvious they are abusing their position as the number 1 chip maker, trying to push Light Peak as a replacement to USB. The truth is, Light Peak needs USB for power, it can never live without it (unless you like to carry around a bunch of AC adapters).
    Intel wants light peak to succeed so badly, they are leaving USB 3.0 (it's competitor) by the wayside. Since Intel sits on the USB board, they have a lot of pull in the industry, and as long as Intel wont support the standard, no manufacturer will ever get behind it 100%. Sounds very anti-competitive to me.
    Considering AMD is coming out with USB 3.0 support in Llano later this year, I've already decided to jump ship and boycott Intel. Not because I'm upset with their lack of support for USB 3.0, but because their anti-competitive practices are inexcusable; holding back the market and innovation so their own proprietary format can get a headstart. I'm done with Intel.
    Reply
  • IanWorthington - Monday, January 03, 2011 - link

    Not really: the board manufacturers seem to be adding usb3 chipsets w/o real problems. Good enough. Reply
  • usernamehere - Monday, January 03, 2011 - link

    Sure, if you're building a desktop you can find plenty with USB 3.0 support (via NEC). But if you're looking for a laptop, most will still not have it. For the fact that manufacturers don't want to have to pay extra for features, when they usually get features via the chipsets already included. Asus is coming out with a handful of notebooks in 2011 with USB 3.0 (that I know of), but wide-spread adoption will not be here this year. Reply

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