sandybridge vs ivybridge

[chris12112]

hi dont want to sound like a total noob but can someone explain the difference between sandy bridge and ivybridge cpus

thanks

 

[stuntmanSLim]

ivybridge supports pci-express 3.0/bandwidth.

 

[HeX]

SB:

32nm
PCI-E 2.0
Runs Cooler
Slower IGP
Worse Memory Controller
Overclocks better

IB:

22nm
PCI-E 3.0
Runs Hotter
Faster IGP
Better Memory Controller
~10% faster clock for clock over SB

 

[jeff6475]

also IB is 5-10% faster clock for clock

 

[Marine-RX179]

IB is newer, faster and lower power consumption than SB, however it can easily be 10-20C hotter than SB on the same core clock.

PCI-E 3.0 that's not going to make any difference on graphic card performance on gaming any time soon, unless people were on SLI/Crossfire with board on x8/x8.

 

[covenantuk]

IB is newer, faster and lower power consumption than SB, however it can easily be 10-20C hotter than SB on the same core clock.

Misleading. IB is actually cooler or comparable to SB at some clocks because they tend to clock higher than SB on default or very small volt increases.

It's true IB temps get significantly higher at higher volt/overclock settings (generally over 4.4ghz).

 

[Nuclear Fusion]

IB seems to get roughly similar or perhaps slightly cooler temperatures with SB at clocks lower than ~4.7GHz, but after than, it suddenly goes a lot hotter than SB at the same clock. So provided that you stay below the 4.7GHz line, you shouldn't have any compromises compared to SB, but you will get faster IGPU (not really important for gaming, since I'm sure you will get a discrete graphics card, but it makes quick sync faster), slightly better power consumption, PCI-e 3.0 support (this will be useful if running something like 3 way GTX 680's or for future graphics cards that may saturate 2.0 bandwidth) and approximately 10% better clock for clock performance. So provided that there isn't a massive price premium for IB, I would say it is better to go with IB (provided that you aren't considering upgrading from SB, in which case it isn't really worth it)

 

[Marine-RX179]

Misleading. IB is actually cooler or comparable to SB at some clocks because they tend to clock higher than SB on default or very small volt increases.

It's true IB temps get significantly higher at higher volt/overclock settings (generally over 4.4ghz).

Really? So you are telling me that IB at 4.2-4.3GHz (which is the most common OC that people aim for) is as low as 55-58C in prime95 on a £25 cooler?