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Upgrading Q6600 -> Sandy Bridge: which one?

Sep 11, 2009
2,680 (0.89/day)
Reaching your left retina.
Congrats man. I did the exact same upgrade just 3 weeks ago. Q6600 to 2500K + 8 GB and I'm very happy too, like night and day in games and rendering. My election was a lot easier though, because in the retailer where I get my parts from, the 2500k costed exactly the same as the non-k 2500 (~180 euro) and 80 euros less than what the 2600k costed. 50% higher price for so little improvement could not be justified, even if the 2600k itself demolished any Westmere i5/i7 CPU in price/performance. The ram was an even easier choice since they had a 2x4GB Patriot 1600 Mhz bundle for sale for only 5 euro more than 2x2 GB bundles and I do have a use for so many ram, so...

It's funny but I've seen dozens of people going from Q6600 to 2500k, I don't know if it's because both are/were such a good deal (which they are) or it's just that seing Q6600 and 2500k together calls my attention.


The Mad Moderator
Feb 19, 2007
11,960 (3.02/day)
Wherever I can find the iron.
Processor Haswell i7 4770K
Motherboard Gigabyte z79 UD5H Black Edition
Cooling Cryorig R1 Ultimate
Memory Gskill Trident DDR3 2400
Video Card(s) Asus 7970 Direct CU II
Storage Kingston Hyper Fury 240 SSD/ WD Black 640GB
Case Fractal Design R5
Power Supply XFX 650w
Software Win 7/Win 10 Tech preview
That's great dude. I've heard that these babies can easily run at 5GHz on the stock cooler, so don't hold back. :cool:
That really is just not true. It's not hard to get about half of these chips to 5.0 on good cooling. Not all of them will make it there stable on reasonable vcore, nor can you run stability tests on the stock cooler on anything but stock vcore. Just don't want people's expectations to go wild. ;)


Overclocked quantum bit
Dec 6, 2007
14,554 (3.97/day)
Quantum Well UK
System Name Quantumville™
Processor Intel Core i7-2700K at stock (hits 5 gees+ easily)
Motherboard Asus P8Z68-V PRO/GEN3
Cooling Noctua NH-D14
Memory 16GB (4 x 4GB Corsair Vengeance DDR3 PC3-12800 C9 1600MHz)
Video Card(s) Zotac GTX 1080 AMP! Extreme Edition
Storage Samsung 850 Pro 256GB | WD Green 4TB
Display(s) BenQ XL2720Z | Asus VG278HE (both 27", 144Hz, 3D Vision 2, 1080p)
Case Cooler Master HAF 922
Audio Device(s) Creative Sound Blaster X-Fi Fatal1ty PCIe
Power Supply Corsair HX 850W v1
Software Windows 10 Pro 64-bit
Thanks for the clarification. :) I don't know from experience, just from what I've seen people post, on TPU and elsewhere. But it certainly doesn't hurt to try!


New Member
Mar 11, 2009
63 (0.02/day)
Sao Paulo, Brazil
Processor Core i5-2500k 4.2GHz (42x100)
Motherboard Gigabyte P67A-UD3-B3
Cooling Akasa AK-967
Memory 2x2Gb G. Skill Ripjaws-X F3-12800CL7D-4GBXM (1600MHz 7-8-7-24-2N)
Video Card(s) XFX 7950 Core Edition
Storage Samsung 2TB + Samsung 250Gb + Seagate 1Tb + Spinpoint 1Tb + 2x Samsung 500Gb + WD MyPassport 320Gb
Display(s) LG 22" 1920x1080 + Panasonic HDTV 37" 1366x768
Case CM HAF 912, 2x120mm + 1x200mm in, 1x120mm + 1x200mm out
Power Supply Corsair 750 TX
Software Win7 Ultimate 64
Benchmark Scores need to re-run them
I'm comfortable with the 4.0GHz mark and performance, don't feel I really need more than that for the moment. Considering I'll probably stick with this CPU for 4 years (my usual time between major upgrades), video card for another 1 (usually replace every 2), and I live in a damn hot country (at the time of this post, 32c ambient temp), I don't want to push it too much now, and leaving a good headroom on both CPU and GPU for a late push closer to their replacement sounds like a plan :)

F1 2010 for instance, managed to run it earlier today on 91fps max, 70fps avg with 8xMSAA. For me that's already great enough :D FSX runs capped to 30fps for better overall performance, GTR² / rFactor are easily over 60fps even under hard conditions, like GTR² rain + night + 35 AI grid at Spa, and last but not least Shift 2 Unleashed is around 60fps avg. Other games, like CoD series, are also over 60fps with all graphics settings I like to have. :rockout:

... and no, did not and will not test Crysis with it lol. :laugh::laugh:
Mar 8, 2009
1,077 (0.34/day)
System Name Primary Rig
Processor e8500 Q822A549 4.5ghz AIR
Motherboard Foxconn Mars P35
Cooling TRUE
Memory 2 x2GB Patriot Viper 1066 5-5-5-12 @ 1.8v
Video Card(s) Sapphire 5870 Unlocked
Storage 300gb Velociraptor
Display(s) Dell 24" Ultrasharp
Case Coolermaster CM690
Power Supply PC Power & Cooling 750w Quad Silencer
Software Windows 7 Ultimate x86
Most ppl are hitting 4.6-4.7ghz under 1.4v with the 2500k's.
4.7-4.9ghz with the 2600k's, and greater than 1.4v for 5ghz stability.
You can also drop that 0.1 to 0.2ghz if you disable PLL Overvoltage so that your system can resume from sleep or standby properly without a hard reboot.
Just my $0.02.