Ivy Bridge VS Sandy Bridge?
- Thread starter Cyalume
- Start date
jonnyp11
New Member
Ivy bridge and sandy bridge are essintially the same thing with very minor tweaks making ivy like 2% faster. The difference is really in the die size, Sandy is 32nm and ivy is 22nm. The reason ivy has a problem is since 22nm is obviously smaller, that means there is less space in the processor for the heat to dissipate making it run hotter when overvolted which is needed for overclocking, but at stock speeds there is just enough room for it to run cooler.
jonnyp11
New Member
yes it tends to go further from what i've heard and seen.
Virssagòn
VIP Member
the ivy is in everything at least 5% faster. But with the lower temps from the sandy you can easy oc higher then an ivy.
The difference between the i5 2500k and i5 3570k is more then the i7 ones.
it seems to me that an ivy bridge cpu clocked at say 3Ghz is equivalant to a sandybridge at 3.2Ghz. i have an i7 3770k, and its at 4.6Ghz. my friend has a i7 2700k, and is clocked at 4.8Ghz, and we get the same GFlops in intel burn test...BUT, then temps on the ivy, are about 6-10c difference. under full load, my ivy running at 1.3v @ 4.6Ghz w/HT on, it runs in the mid 80's using the antec 920 water cooler. the 2700k runs in the high 70's using the same cooler. the other difference is that the ivybridge supports pci-e 3.0 which will be good if you have a new generation card, OR if you have a motherboard that requires a ivybridge to unlock extra pci-e s;ots on the baord, such as the gigabyte ud5......
salvage-this
Active Member
Best answer so far. I was hearing that the difference was somewhere around the 200MHz range.
Even though both are solid performers, I would go Ivy Bridge if you are looking for a new build.
jonnyp11
New Member
well amd cpus normally (phenom II's) say the max is around 62 or so, so for intel 70 may be ok but i wouldn't go that high an this. Really i wouldn't want any processor to hit 60 even an intel safe to 80, i'd rather keep it ell below the max to keep it safe, rather than going for that extra .3ghz which won't do all that much when you're already at 4.2 or whatever.
Virssagòn
VIP Member
Man, getting 60C with an intel is not bad at all...
I was getting in the 70 while gaming with the stock cooler (cpu @ stock).
Now getting 51 max while gaming at 4.2ghz.
jonnyp11
New Member
idk about more intensive things but just cause 2 only hits 40C on the cpu, blacklight retriburtion which is great graphically hits around 40 iirc, never have seen games push it higher really that i remember. Although gpu is a different story, play retribution for an hour straight and it's hitting 90C.
Virssagòn
VIP Member
Intels get higher temps then amd's, that's normal and they are better against high temps.
Did you enable vsync? I know BR is a fairly heavy graphical game, but that high if you got it enabled? :S
jonnyp11
New Member
the fans on the twin frozr are dead and removed, got 2 case fans strapped on, but on furmak it was still only hitting about what benches got so it should be normal. The 470/480 both use a crap load of power and run hot as hell no matter what.
but on just cause 2, played it for a good long while and the max was 61C
Virssagòn
VIP Member
Because just cause enables the vsync automatically, go in blacklight to display options and enable vsync. With it on you can reduce your temps by 10 degrees. (Like my hd6870)
It's better to go with Ivy for a new build because you can also get a board that supports PCIe 3.0 and utilize it with AMD 7k series and Nvidia 600 series.
Heat is not a factor at all. I have my 3570k at 4.5ghz daily at 1.30v, and cool it with a small 2 heatpipe 92mm cooler. Idles mid 30's and loads in the mid 60's. May bump into the 70's with a full stress test but it will never see that gaming ever.
Even if you only run 4ghz, the CPU will not be any kind of bottleneck whatsoever for any situation and will be lightning fast.
Heat is not a factor at all. I have my 3570k at 4.5ghz daily at 1.30v, and cool it with a small 2 heatpipe 92mm cooler. Idles mid 30's and loads in the mid 60's. May bump into the 70's with a full stress test but it will never see that gaming ever.
Even if you only run 4ghz, the CPU will not be any kind of bottleneck whatsoever for any situation and will be lightning fast.
The thing is, I'm deathly worried about that heat. I've read somewhere that under full stress test, Ivy can hit temps of up to 90 and above. I do plan to OC to around 4.5 eventually, and keep it there on a daily basis with a watercooling solution. But I don't want the temps every going over 70 for any reason, and thats an issue;
Some specifics: I do plan to use a kepler GPU. I'm purchasing a GTX 670 from MSI. So, if I've heard correctly, I am going to need PCIe 3.0. This computer should last around 5-6 years, with the CPU running at 4.5 Ghz daily (Unless that is not possible). I don't want any meltdowns or anything. I don't want it to die on me in a stress test. I do have an application that I'm going to be running that will require at least 4.2 Ghz.
salvage-this
Active Member
What are you running that you need 4.2GHz? Even still the 3570k generally will OC to 4.0/4.1 on stock volts. If you actually need 4.2 and are worried about the heat just make the small voltage bump to hit 4.2 and call it good.