Possibly, depending on the voltage required. The MSI Z87-GD65's "Enhanced Turbo" feature automatically ratcheted up the clocks to 3.9GHz at around 1.25V. Things quickly got toasty running IBT with MX4 and a Hyper 212+ (90C).
Possibly, depending on the voltage required. The MSI Z87-GD65's "Enhanced Turbo" feature automatically ratcheted up the clocks to 3.9GHz at around 1.25V. Things quickly got toasty running IBT with MX4 and a Hyper 212+ (90C).Could I hit my planned 4.2 Ghz OC with a stock cooler? Or even 4 Ghz?
Luck of the Draw?
From all the feedback that I am getting through motherboard makers about Haswell overclocking, the basic thread at this time in terms of getting "high overclocks" seems to be, "You need to have a good CPU." ASUS has tested a couple hundred Haswell processors at this time and this is ASUS specific feedback from that overclock testing.
70% of CPUs can clock to 4.5GHzOverall you will find most CPUs capable of reaching 44x to 45x with varying levels of voltage.
30% of CPUs can clock to 4.6GHz
20% of CPUs can clock to 4.7GHz
10% of CPUs can to 4.8GHz
From this article http://www.hardocp.com/article/2013...74770k_ipc_overclocking_review/1#.UbPIcr7n99A
Maybe Haswell needs a new stability testing scenario. Stable at ones intended uses is most likely gonna require less voltage and produce a lot less heat.
Possibly, depending on the voltage required. The MSI Z87-GD65's "Enhanced Turbo" feature automatically ratcheted up the clocks to 3.9GHz at around 1.25V. Things quickly got toasty running IBT with MX4 and a Hyper 212+ (90C).
This is only true if you're running Vcore in adaptive mode. Since I fold, I see no point in offset and/or adaptive mode and just run a fixed Vcore.Aside from this, there is the fact that Prime95 increases Haswell's offset voltage by .1V. The temps you see in Prime95/IBT will *not* be replicated anywhere else, you can be certain of that. I think a lot of folks are approaching 4770k stress testing wrong, because prime95 and IBT have not been updated for Haswell yet. Haswell, unlike IVB, increases the offset voltage by a whopping .1V with certain AVX type instructions which only occurs in prime95 and IBT. Even if you get ridiculously high temps in prime95, you will definitely NOT get those same temps anywhere else.
If you really expect an overclock, just buy 20 chips, test them and keep the best, return the rest. That's what I would do if I really wanted an over-clockable product. Next time I'm gonna do just that, I'm sick and tired of getting garbage-bin products, for example my Titan doesn't OC past +50/300MHz, it's fine at 130/300 in some games but total stability is only at +50MHz.
ps. I wouldn't expect a new stepping that improves OC. When was the last time they did that? Almost 4 years ago? (920 G0) The new stepping of SB-E only repaired what was broken, I don't expect anything more from a company that puts a gap between a CPUs die and its IHS. WHY? Higher temps should lead to more silicon degradation thus increase RMAs. Maybe that effect is too miniscule for them to worry.
Consider that 70% of 4770k samples can hit 4.5ghz, and a 4.5ghz Haswell easily matches an IVB hundreds of mhz higher. I've seen benchmarks of a 4.4ghz Haswell exceeding 10 in cinebench 11.5, which oddly enough is higher than what my 3770k gets at 4.7ghz.
I just don't get some folk's mindset on this. Haswell is not different than IVB, they are both temperature limited - I really feel that some have rose tinted glasses or skewed memories of what overclocking on IVB is *really* like. People are so focused on trash talking Haswell that they forget that IVB really was not THAT much different. It's not all rosy like some are suggesting here, it's not like every 3770k on the planet is going to hit 5ghz with ease. Or even 4.6-4.7ghz. Give me a break. IVB gets hot as well, let's not kid ourselves.
Aside from this, there is the fact that Prime95 increases Haswell's offset voltage by .1V. The temps you see in Prime95/IBT will *not* be replicated anywhere else, you can be certain of that. I think a lot of folks are approaching 4770k stress testing wrong, because prime95 and IBT have not been updated for Haswell yet. Haswell, unlike IVB, increases the offset voltage by a whopping .1V with certain AVX type instructions which only occurs in prime95 and IBT. Even if you get ridiculously high temps in prime95, you will definitely NOT get those same temps anywhere else.
Intel doesn't guarantee over clocking. Anything you get above stock is a bonus. Buying and returning does nothing but up price and make it harder to return for legit customers.
But how does it compare in GAMES, specifically Starcraft 2 and Skyrim? The holy grail of benching for a good portion of the "get a dual core i3 over a FX 6300" folk.
Which is?I never trust overclocking results from average Joes on internet forums. Especially from Overclock.net and HardOCP. Their results are generally only stable enough for them to boot Windows and run a few benchmarks. It would never pass the kind of stability tests I put processors through.
I agree with this, but the problem in this case is that stock temperatures are also affected, to the tune of 15C. That's alarming as review samples @ stock already had high temperatures.If you are basing your purchase off of a review and an expected overclock, that's your biggest mistake.
With my current system I used 8 to 12 hours of LinX AVX - 11 threads 28GB memory. Then 8 to 12 hours of Prime95 AVX with 12 threads and 10GB memory. Then around 8 hours of 3DMark11 demo loops using the extreme preset. Afterwards I use a combination of Prime95 or LinX with 10 threads and loop Unigine demos for several hours. While doing the LinX and Prime95 tests I'm also using the system for browsing the web and doing other stuff.
Can someone do a test with what clocks are needed to match sandy ivy and Haswell in performance.
Ie. What clock is required to get better performance versus last 2 chips
Can someone do a test with what clocks are needed to match sandy ivy and Haswell in performance.
Ie. What clock is required to get better performance versus last 2 chips
But how does it compare in GAMES, specifically Starcraft 2 and Skyrim? The holy grail of benching for a good portion of the "get a dual core i3 over a FX 6300" folk.