- Sep 5, 2013
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6600K OC vs 6500 OC
- Thread starter knowledge2121
- Start date
Solution
- May 18, 2007
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With non-K chips, all you can do is base clock overclocking and base clock overclocking usually has much more limited usable overclocks due a lot of extra "un-core" stuff depending on the base clock. Base clock overclocking is effectively limited by the weakest un-core thing while multiplier overclocking (K/X-chips) is only limited by the cores themselves.
photonboy
Titan
- Jun 20, 2006
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Agreed, mostly.
Basically, assume the i5-6500 can't be overclocked. Then compare to an overclocked i5-6600K.
We'll use the value of (Max Turbo - 200MHz) for a system under load. Thus 4.4GHz-3.4GHz = 29.4%
*So the i5-6600K can theoretically process almost 30% faster. In reality, the real-world experience may be lower than this. Some games will see no observable difference.
For a tight budget, this may mean money can be put towards the GPU. You'd want to buy a more expensive cooler for the i5-6600K so you could easily see over a $100 difference for price of CPU and cooler.
(and maybe a cheaper motherboard as well).
So...
It's actually hard to answer the question without considering the big picture. Again, given a weaker budget if this is meant for GAMING I would consider the i5-6500, stock cooler, good-enough motherboard and put the savings towards a better graphics card.
Basically, assume the i5-6500 can't be overclocked. Then compare to an overclocked i5-6600K.
We'll use the value of (Max Turbo - 200MHz) for a system under load. Thus 4.4GHz-3.4GHz = 29.4%
*So the i5-6600K can theoretically process almost 30% faster. In reality, the real-world experience may be lower than this. Some games will see no observable difference.
For a tight budget, this may mean money can be put towards the GPU. You'd want to buy a more expensive cooler for the i5-6600K so you could easily see over a $100 difference for price of CPU and cooler.
(and maybe a cheaper motherboard as well).
So...
It's actually hard to answer the question without considering the big picture. Again, given a weaker budget if this is meant for GAMING I would consider the i5-6500, stock cooler, good-enough motherboard and put the savings towards a better graphics card.
Tradesman1
Legenda in Aeternum
- Jun 5, 2013
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The 6500 is a 3.2 CPU, might get the OC to 3.6 (maybe), the 6600K is 3.5 stock and can generally OC to 4.5 and better (silicon lotttery, capabilities vary from chip to chip)
- Sep 5, 2013
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Yeah, I have seen posts all over the internet with people overclocking their 6500s to 4-4.4 ... That's what I was wondering about and it turns out it is possible by fine tuning the BIOS....
- May 18, 2007
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People are BCLK-overclocking the i5-6500 to ~4.2GHz.
Unlike Broadwell and earlier chips where the same BCLK is used for IO and CPU/memory, Skylake has separate BCLK inputs. All you need to "unlock" BCLK overclocking is a motherboard with a separate clock generator for CPU and IO.
geofelt
Titan
- Oct 9, 2006
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Not exactly.
Asrock produced some motherboards with a modified bios that allowed non K overclocking via BCLK.
Intel did not support that and did not like it much.
As a result Asrock pulled the bios but the bios is still available on the internet.
Even if you were able to get to 4.4, that is less than what you can typically reach with a i5-6600 overclock.
As of 5/2016
What percent can get an overclock at a somewhat sane 1.40v Vcore.
I5-6600K
5.0 2%
4.9 11%
4.8 36%
4.7 64%
4.6 88%
And, you do need a Z170 motherboard.
For cpu limited gaming, this is as good as it gets, and is comparable to the $100 more expensive I7-6700K since few games can use more than 2-3 cores and the I7 hyperthreads.
OTOH if you are budget constrained, the $125 I3-6100 is a great mid range gamer, generally exceeding the performance of the I5-6600 in this review:
http://www.anandtech.com/show/10543/the-skylake-core-i3-51w-cpu-review-i3-6320-6300-6100-tested
photonboy
Titan
- Jun 20, 2006
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OC can also be disabled by a microcode update via Windows Update that you have no control over.
So even if your motherboard BIOS supported it, you could install W10 (older version probably) have the OC work then have Microsoft Update run and it no longer works.
So even if your motherboard BIOS supported it, you could install W10 (older version probably) have the OC work then have Microsoft Update run and it no longer works.
- Sep 5, 2013
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All you have to do is renaming mcupdate_GenuineIntel.dll just after installing win10 ... after that WIN10 cannot update the microcode and you are set.
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