The Ivy Bridge Preview: Core i7 3770K Tested
by Anand Lal Shimpi on March 6, 2012 8:16 PM EST- Posted in
- CPUs
- Intel
- Core i7
- Ivy Bridge
The Lineup
Intel will initially launch quad-core SKUs on the desktop. Ivy Bridge will be branded as Intel's 3rd generation Core microarchitecture and use model numbers below 3800. The 3800 - 3900 series are reserved for Sandy Bridge E for the time being, while the 2000 series refers to last year's Sandy Bridge parts. Just like we saw with Sandy Bridge, Ivy will be available in fully unlocked (K-series), partially unlocked (any part with Turbo support) and fully locked (anything without Turbo support) SKUs.
What we know about the lineup today is summarized in the table below:
| Processor | Core Clock | Cores / Threads | L3 Cache | Max Turbo | Intel HD Graphics | TDP | Price |
| Intel Core i7 3960X | 3.3GHz | 6 / 12 | 15MB | 3.9GHz | N/A | 130W | $990 |
| Intel Core i7 3930K | 3.2GHz | 6 / 12 | 12MB | 3.8GHz | N/A | 130W | $555 |
| Intel Core i7 3820 | 3.6GHz | 4 / 8 | 10MB | 3.9GHz | N/A | 130W | $285 |
| Intel Core i7 3770K | 3.5GHz | 4 / 8 | 8MB | 3.9GHz | 4000 | 77W | $332 est |
| Intel Core i7 3770 | 3.4GHz | 4 / 8 | 8MB | 3.9GHz | 4000 | 77W | $294 est |
| Intel Core i5 3570K | 3.4GHz | 4 / 4 | 6MB | 3.8GHz | 4000 | 77W | TBD |
| Intel Core i5 3570 | 3.4GHz | 4 / 4 | 6MB | 3.8GHz | 2500 | 77W | TBD |
| Intel Core i5 3550 | 3.3GHz | 4 / 4 | 6MB | 3.7GHz | 2500 | 77W | TBD |
| Intel Core i5 3470 | 3.2GHz | 4 / 4 | 6MB | 3.6GHz | 2500 | 77W | TBD |
| Intel Core i5 3450 | 3.1GHz | 4 / 4 | 6MB | 3.5GHz | 2500 | 77W | TBD |
| Intel Core i5 3330 | 3.0GHz | 4 / 4 | 6MB | 3.2GHz | 2500 | 77W | TBD |
| Intel Core i7 2700K | 3.5GHz | 4 / 8 | 8MB | 3.9GHz | 3000 | 95W | $332 |
| Intel Core i7 2600K | 3.4GHz | 4 / 8 | 8MB | 3.8GHz | 3000 | 95W | $317 |
| Intel Core i7 2600 | 3.4GHz | 4 / 8 | 8MB | 3.8GHz | 2000 | 95W | $294 |
| Intel Core i5 2500K | 3.3GHz | 4 / 4 | 6MB | 3.7GHz | 3000 | 95W | $216 |
| Intel Core i5 2500 | 3.3GHz | 4 / 4 | 6MB | 3.7GHz | 2000 | 95W | $205 |
Unlike the initial Sandy Bridge launch, both fully and partially unlocked Ivy Bridge parts will ship with Intel HD 4000 graphics - although that's still reserved for the high-end on the desktop. I am also seeing movement towards removing core-count restrictions on turbo frequencies. Today max turbo is defined in most cases by the highest frequency you can reach with only one core active. I would not be surprised to see Intel eventually move to a setup where max turbo can be reached regardless of number of active cores and just base it on current power consumption and thermal conditions.
Chipset Support
Ivy Bridge uses the same LGA-1155 socket as Sandy Bridge. Provided there's BIOS/UEFI support from your board maker, you can use Ivy Bridge CPUs in older 6-series motherboards. Doing so won't give you access to some of the newer 7-series chipset features like PCIe Gen 3 (some 6-series boards are claiming 3.0 support), native USB 3.0 (many 6-series boards have 3rd party USB 3.0 controllers) and Intel's Rapid Start Technology.
| Chipset Comparison | ||||||||
| Z77 | Z75 | H77 | Z68 | P67 | H67 | |||
| CPU Support |
IVB LGA-1155 |
IVB LGA-1155 |
IVB LGA-1155 |
SNB/IVB LGA-1155 |
SNB/IVB LGA-1155 |
SNB/IVB LGA-1155 |
||
| CPU Overclocking | Yes | Yes | No | Yes | Yes | No | ||
| CPU PCIe Config |
1 x16 or 2 x8 or 1 x8 + 2 x4 PCIe 3.0 |
1 x16 or 2 x8 PCIe 3.0 |
1 x16 PCIe 3.0 |
1 x16 or 2 x8 or 1 x8 + 2 x4 PCIe 3.0 |
1 x16 or 2 x8 PCIe 3.0 |
1 x16 PCIe 3.0 | ||
| Processor Graphics Support | Yes | Yes | Yes | Yes | No | Yes | ||
| Intel SRT (SSD caching) | Yes | No | Yes | Yes | No | No | ||
| RAID Support | Yes | Yes | Yes | Yes | Yes | Yes | ||
| USB 2.0 Ports (3.0) | 14 (4) | 14 (4) | 14 (4) | 14 | 14 | 14 | ||
| SATA Total (Max Number of 6Gbps Ports) | 6 (2) | 6 (2) | 6 (2) | 6 (2) | 6 (2) | 6 (2) | ||
| PCIe Lanes | 8 (5GT/s) | 8 (5GT/s) | 8 (5GT/s) | 8 (5GT/s) | 8 (5GT/s) | 8 (5GT/s) | ||
The big change this year is that all 7-series chipsets support processor graphics, while last year Intel had the silly P vs. H split until Z68 arrived and simplified everything.
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silverblue - Wednesday, March 7, 2012 - link
At the very least, AMD need a less power hungry successor to Bulldozer. From the Xeon review, it's mentioned that they should be in a position to do this, and could at least clock the thing a lot higher and still use less power than Bulldozer. Regardless, that IPC deficit is a killer - the following page is so telling of the architecture's current limitations:http://www.anandtech.com/show/4955/the-bulldozer-r...
abianand2 - Wednesday, March 7, 2012 - link
1. General curiosity: You stated you did not get a sanction or support from Intel for this preview. I believed that sort of a thing isn't allowed before the release date. How do exceptions like this work?2. Specific: I observed most of the discrete GPU tests were at 1680x1050, where there . Any reason for this? I guess it is since this is just a preview. Am I right? Any other reason?
Thanks
Kjella - Wednesday, March 7, 2012 - link
1. If you want to officially review the chip, you sign an NDA and Intel provides you with it. Here he got access to it from a partner, who probably broke their agreements but Anand never signed any agreement so he can publish whatever he wants.2. I would think so ,and in GPU bound scenarios I wouldn't expect much change at all.
InsaneScientist - Wednesday, March 7, 2012 - link
1) Generally what happens with previews and first looks is that the company producing a product (Intel) will send out press samples to reviewers if the reviewers will sign a Non Disclosure Agreement (NDA). When the NDA expires (generally the same time for everyone), the reviewers can post their findings to the public.This is done (I assume) to give reviewers enough time to thoroughly review a product without having (theoretically) to worry about having information leak until the company wants it to get out.
If, on the other hand, a reviewer acquires a product via other means so there is no NDA that they have to sign in order to get the product... well, they're not under NDA, so they're free to disclose whatever they want.
sld - Wednesday, March 7, 2012 - link
What a troll.Start crying when Intel is able to jack up prices by 2x - 3x when AMD is gone.
You don't even realise that his fears of a tock- means that since Ivy Bridge has more features, presumably pushed forward from Haswell, Haswell itself will bring less features to the table.
Hrel - Wednesday, March 7, 2012 - link
WHY!!!!? Does Intel HAVE to disable Hyper Threading on the sub 300 dollar CPU's? It's not like having in ENABLED costs them anything more at all. It would just be providing their customers with a better product. This shit is infuriating. It's there on the chip no matter what, HT should just be on every single Intel chip no matter what. That shit pisses me off SOOOO much.Exodite - Wednesday, March 7, 2012 - link
I would imagine there's going to be a fair few sub-300 USD dual-cores with HT down the line, though I suppose you meant specifically for the quads?The reason seem obvious enough for me, if you need the extra performance in applications that stand to gain from HT you'll have to pay for it.
Frankly I don't see the added cost as anything major, considering the gains.
It's just differentiation really.
Sure, we'd all want more stuff cheaper (or for free!) but lacking HT doesn't in any way cripple a chip.
sicofante - Wednesday, March 7, 2012 - link
It's called market segmentation.Hector2 - Wednesday, March 7, 2012 - link
Chill out. You'll pop a blodd vessel. With all that's happening in the world, THAT's what's pissing you off ? LMAOsld - Wednesday, March 7, 2012 - link
Intel's products get cheaper with smaller dies and with competition. Without competition, their dies cost the same to make, but they rob and loot your pockets and make obscene profits off you because your hated AMD no longer exists as an alternative supplier of good chips.