Monday, December 12th 2011
Intel Core i7-3960X and i7-3930K CPUs Transitioning to C2 stepping in January
As previously reported, Intel's first wave of Sandy Bridge-E processors have VT-d (Intel Virtualization Technology for Directed I/O) disabled due to an errata in the C1 stepping. That issue couldn't be resolved in time for the launch but it's getting fixed with the C2 stepping which is set to start rolling out to customers on January 20th, 2012 (samples have already been delivered).
The CPUs moving to the C2 stepping are the hexa-core Core i7-3960X (3.3 GHz) and Core i7-3930K (3.2 GHz). Beside the fixed VT-d, the C2 chips will feature new S-spec and MM numbers so a BIOS update for current motherboards will likely be required.
The CPUs moving to the C2 stepping are the hexa-core Core i7-3960X (3.3 GHz) and Core i7-3930K (3.2 GHz). Beside the fixed VT-d, the C2 chips will feature new S-spec and MM numbers so a BIOS update for current motherboards will likely be required.
59 Comments on Intel Core i7-3960X and i7-3930K CPUs Transitioning to C2 stepping in January
Feel free to delete this.
SKT2011 is high-end computing, for sure, but gaming with multiple VGAs and monitors needs that grunt and bandwdith too.
I'm sorry, but calling people idiots isn't exactly within forum rules. Technically, you'd be missing a big part of why 2011 is good for gaming too, so you might want to reconsider your statement.
And yes, I can back my claim up with benchmarks. I dropped 2600K and the G1.Sniper2 for gaming, although i do miss how quiet that rig was.
On a lighter note, I'm eager to try a new stepping, know of several peopel keeping an eye out for them, yet here we are at the end of January, and none to be found. I wanna pick up a 3930K. C'mon, Intel, lets get stock on shelves.!
I have a degree in Computer Science and I'm a Systems Administrator. I like to think that I know what I'm talking about since I work with hardware on a daily basis, but any person who knows what they're talking about will tell you that SB-E is overkill for games as they are today.
I apologize for calling the author an idiot, but seriously, do some research before you start calling people out.
www.guru3d.com/article/radeon-hd-7970-cpu-scaling-performance-review/
...and to quote the review: Edit: Also unless you're running crossfire 7970s, this is a very realistic perspective on CPU scaling as it is just as fast as many current multi-gpu solutions. Also, benchmarks are designed to push everything in your system hard, that is their purpose, I'm talking about games and real world applications.
I wouldn't be surprised if this difference will be more marked when Intel releases a full 20MB L3 Ivy-E, also I don't think that if you pay more money for a handful of FPS you are an "idiot" the term is enthusiast and there is nothing to be afraid of, why must people judge what others do with their money/free time? As long as you are having fun then who cares :)
It's also why, when I have a GTX 580, I've just bought a GT 520 2GB (are you mad?! they say. Well, possibly). The reason being that I'm curious to see how my 580 with it's memory maxed out compares to the weedy 520 at the same settings with its memory not maxed out. Also, I've got the top and the bottom of the 5xx range, which I like having, but don't tell anyone. ;)
Yeah, I don't need any of this, real world be damned. :p
If you've tested a similar setup and didn't see such gains, then you would have a much more productive conversation if instead of telling him that he doesn't know what he's talking about, you 'compared notes' ie discussed the finer points of your two systems, such as things like specific BIOS settings, driver settings, overclocks and all that good stuff. Doing that would be likely to close the gap and lead to agreement quite quickly.
TPU is a fantastic forum and you'll get a lot out of it if you put the effort to treat people right and stay within the forum rules. :)
Welcome to TPU. :toast:
I don't really want to drag this out, but I'm just saying that it doesn't add up and that I can't imagine the gains are really that noticeable and I see nothing to support the contrary.
The main difference in my perspective, which has been my perspective for years now, and posted on these forums over the years, is that when running multiple VGAs with high resolutions, it's not raw CPU core speed that matters...it's memory bandwidth.
So, with that in mind, any perspective that explores performance differences, mainly focusing on raw core performance, or the multi-threaded nature of applications, isn't going to portray the same perspective that I have.
You are right..core perforamnce makes little difference. IN fact, although many sites do not explore this, I feel that the real differences between CPUs in gaming isn't based on mathematical poweress, but is actually more focused on CACHE performance. Of course, because the heirachy of cache design within an OEMs product lines only differs slightly, the actual appearance of core perforamnce in gaming only differs slightly.
I agree 2 FPS is minimal, and unimportant.
But take a look here:
What's going on here? we have a much "slower" CPU, AMD's APU line, giving nearly 50% more performance than the high-end 1100T. Of course, these are not INtel results, but the same plays true. In system configurations that are memory bottle-necked, the 3960X excels.
Perhaps Core performance in gaming, and explorations of such, is a wasted task? If you want to present a certain perspective, yes, it works. But rather than focus on a single aspect, I like to look at hte whole picture, and the whole picture, including my daily use of a 3960X, quite accurately gives me more performance than any other platform does...
And you are right. The extra cores are NOT what gives that performance.
:rockout:
Also Dave do you know why many bench suites do not see the additional bandwidth quad channel should yield?
I mean really, 1155 is Intel's entry-level platform, IGP included. It is a killer entry level paltform though, without a doubt, and will provide 99% of users will more power than they need. I am not one of those users.
The extra power consumption is a tough pill to swallow, but like I care. For the games I play, it's better. :laugh:
SiSoft Sandra is the only bench right now that shows the extra Bandwidth. It's just about the algorithms used for the tests that are at fault. Many need updates, but I do use Sandra in my memory reviews, so you can see the difference there, at least.
The only thing that makes me puzzled is that SB-EP Xeons won't OC because they don't have the BCLK untied.
What do you think? I mostly use V-Ray and it's a thread swallower (literally :D)
If it must be X79, 3930K with and OC warranty, with 4.8 GHz is damn snappy. Xeons, with no OC, and no OC warranty, are not something I'd personally consider.
For mutli-GPU gamers on X79, the 4-core with HT, if priced right, would be the CPU to get, because as mentioned the extra cores don't offer much, overall.