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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arno - Friday, March 9, 2012 - link
No, it is just out of question for me to overclock. I wanna buy a profesional laptop (w520 lenovo). SO no way to teak it.Fact is memory will be 1600 Mhz and the processor a bit stronger with maybe a better memory controler.
At one month of the release, it worth to wait it.
Just wanna make sure that in my particular case it really worth it cause i'm tired of my heavy old laptop. I buy this damn machine just for working after all. At home, my E8400 is still upto date for what I do with it.
DDR4 - Friday, March 9, 2012 - link
I want to see some increase in performance and actual processing power. For now, i can leave the graphics to the GPU.Nexing - Friday, March 9, 2012 - link
@ArnoI'd consider a few aspects:
-Do you need to use precision external gear, -like we audio people do with soundcards- and hence need ExpressCard or Thunderbolt connectors? Then I'd expect May-Jun launches will bring those professional Laptops and Ultrabooks.
-If portability is important, factual Sandy bridge battery capacity is near 4 hours whether Ivy Bridge battery will extend real usage around eight hours for similar performance.
-Furthermore USB 3.0 will be native, something important since most renesas boards have been far from perfect and just their recent (Feb/March 2012) releases seem to finally have nailed efficiency.. Problems with USB 3.0 equiped Sandy Bridge laptops abound in forums, and that is in professional brands.
-If you were questioning about SandyB vs IvyB desktops, you could still buy now the former and later upgrade for the later CPU, but with the mobile platform, Intel has stated that H67M -their actual chipsett platform, also named Cougar Point- Upgradeability is not going to be feasible, despíte it could be technically possible easily..
Therefore, there a many reasons pointing to wait. Since sales are very low, any are choosing this route.
arno - Saturday, March 10, 2012 - link
Thanks Nexing for u answer. Actually, i totally agree with you on:portability => IB is a shrink and must be more power efficient for an equivalent task load. Seems that the test proves it. moreover, I will work a lot in trains or outdoors (visiting customers), so it is definitely a +.
USB 3 => u feedback is very interesting. I myself think that "native" versus "add on" USB3 feature must be better. And that was also a reason for me to wait when last december, i was already thinking of buying something new. Now i'm quite sure that it was the good thing to do.
For the rest, more than external gears, I need a processor good in floating points calculation. I do intensive electrical simulations so i definitely need it.
I took my decision and I will wait. This laptop will replace and desktop and laptop for work (and work only cause for internet or usual offices task, i definitely think a core 2 duo can make it); so better to catch the best. I will manage the present emergency I have, praying for Lenovo (or Samsung?) to offer new Ivy Bridge laptop as soon as possible. Let's make a bet: Lenovo got it ready to release and is just waiting for the official launch date....
thanks for sharing ;)
Nexing - Friday, March 9, 2012 - link
Should say:"many are taking this waiting route"
arno - Saturday, March 10, 2012 - link
"FP/integer divider delivers 2x throughput compared to Sandy Bridge"I should read more carefully. That is an answer to my question. Maybe not a spectacular improvement, but still one.
DrWattsOn - Tuesday, March 13, 2012 - link
@arno I'm GLAD you didn't read more carefully, because you posted the question, and Nexing's answer focused me on something I still wasn't considering as a major factor in my decision: USB3. Between your question and the response, I also got a better picture of how specific use is affected by the tech. So, I'm a waiter (tho I don't serve food 8^D ).stephenbrooks - Saturday, March 10, 2012 - link
Intel released on 2006, 2007, 2008, 2010, 2011, 2012.In base 9 they're on schedule.
bhima - Saturday, March 10, 2012 - link
Basically every 2D-based graphic designer/web designer doesn't need a discrete GPU for their work. The IGPs handle that workload fine (mainly because most of the processing needed for photoshop, indesign, illustrator or dreamweaver is CPU based). A discrete GPU gives you better performance with the very limited 3D stuff that photoshop offers which is situational at best for the vast majority of graphic designers.3D artists and those that pump a ton of effects in video editing, they would benefit from discrete.
shadow king - Monday, March 12, 2012 - link
^ =)