Core i7 System Buyers Guide

by Wesley Fink on February 5, 2009 3:00 AM EST

Final Words

The Intel Core i7 processor currently owns the high end of the market, which is the reason the CPU prices remain high relative to Intel Core 2 Quad and the AMD Phenom II. The cheapest Core i7 920 CPU is around $300, with two more models going for $600 and $1000. In addition, the Core i7 uses a new socket 1366 and supports the first triple-channel DDR3 memory configuration. That means new Core i7 buyers will be shopping for a number of new and unique components as they move to Core i7.

Despite the high cost of the CPU and the uniqueness of some components, we have shown that it is possible to build a complete high performance Core i7 system for as little as $1450. That price is for a system with 1TB hard drive, Blu-ray player/DVD burner, a Radeon HD 4870 1GB video card, 1920x1080 monitor, keyboard/mouse, and even Windows Vista Home Premium. If you have some components that are compatible with a Core i7 build, you can reduce the cost even further. Just be sure you will not be leaving performance behind with the components you are considering moving over to a new Core i7 build.

We also showed an extremely flexible Core i7 overclocking system build with components selected to support overclocks to 4.0GHz with the Core i7 920 processor. While the cost was just a bit over $2000 for the complete system, the overclocking i7 system should carry you considerably higher than the current top-line Core i7 965 which runs at 3.2GHz. The OC system was pushed toward value overclocking but the $1010 965 CPU is unlocked and it could be the basis of a "highest performance at any cost" Core i7 overclocking system.

Finally, our Core i7 Dream system used all the best performing parts we could assemble in a $5000 "performance king" system built around a 30" S-IPS panel LCD driven by an NVIDIA GTX 295 dual GPU video card. The Dream Core i7 includes the superb Silverstone "positive pressure" aluminum case and the similarly excellent Corsair 1000HX modular power supply driving a $1010 Core i7 965 and 6GB of fast Mushkin DDR3-1600 triple channel memory. We could have carried the "dream" even further with items like RAID 5 storage, a boot SSD RAID, quad SLI with two GTX 295, or a GTX 285 triple SLI setup - supported by the ASUS motherboard used in the dream system. We went as far as $5000 would take us and paused, but there could definitely be more.

The point of all this is that while the Core i7 CPU is the most expensive processor family in today's CPU market, there are still many options. You can build a complete i7 system for less than $1500, use the Core i7 as the heart of an overclocking computer for around $2000 that has incredible performance potential, or use the top $1000 Core i7 965 as the basis for a luxury system with extreme performance for gaming, photo editing, or graphics. The Core i7 is that flexible and is at home in a wide variety of computer configurations. Of course, if all you do is surf the Internet, write email, and work in Microsoft Office, you should save your money and get a more reasonable system - there are plenty of people that simply have no need for eight logical processing cores.

We hope these three systems with widely different goals and prices have given some ideas of where you might like to take a Core i7 build. Wherever you take it, you will be extremely pleased with the Core i7 performance. Core i7 owns the top of the current CPU market because it delivers the best performance in the market today. There is definitely a price premium but you get the best performance you can buy in today's desktop market with an Intel Core i7 system.

Core i7 Dream System
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  • Burrich - Friday, February 6, 2009 - link

    If I was to configure a system for overclocking or a "dream system", performance would be my highest priority. Why does this review stop short of offering items like RAID0 or RAID5?

    Considering that you're using the X58 chipset, including the ICH10R southbridge, why aren't you exploring the Intel Matrix RAID solution? With two disks you can set up a RAID0 and RAID1 array. Sure, it might not currently be extremely flexible (and may not be for everyone), but it can be a very good solution for someone with 2 1TB drives that are interested in both performance and redundancy.
  • JarredWalton - Friday, February 6, 2009 - link

    Since I'm in the midst of dealing with a RAID disaster, let me just say that I'm not fully convinced that I will never bother with onboard RAID solutions ever again. My motherboard crapped out on me, and thus until I can get a new board with the appropriate controller, I can't get at my data. Since the board is two years old, I need to find something with ICH7R - easier said than done. Obviously, that's not an issue if you have a RAID card, but I'm totally done with RAID0 going forward! It may be slightly higher performance, but it's also high risk. I'd much rather have two separate drives these days.
  • JarredWalton - Friday, February 6, 2009 - link

    Erm... "I'm fully convinced that I will never bother..."
  • 7Enigma - Friday, February 6, 2009 - link

    Does the Asus Revolution not support the Thermalright Ultra120 Extreme? I don't know why this wouldn't have been selected instead, other than the Dream System is not meant to be OC'd or an incompatibility due to the size of the Ultra120?

    The Vigor Monsoon to my best ablility doesn't even show up in your cpu cooling reviews. Is it another cooler (like the Xigmatek Rifle 120) that you tested but never released results for?
  • Wesley Fink - Monday, February 9, 2009 - link

    Anand, Gary Key, and I have all three used the Vigor Monsoon III to cool an i7 system with good results. The Thermalright Ultra 120 eXtreme-1366 only recently was available as a Socket 1366 kit. Both have done well in cooling a Core i7 system, and both will fit the Asus board used in the dream system. The Monsoon II and Thermalright have both been very good performers in early testing.

    We have not added to our cooler testing in a while, but we are working on new cooler tests for Socket 1366. This is mostly because the stock 1366 cooler barely goes beyond rated speed and does not provide the reserve of past stock cooling from Intel.
  • bijeshn - Friday, February 6, 2009 - link

    another howler:

    Intel Core i7 965 Socket 1366
    (3.2GHz Quad-core, 4x256MB L2, 8MB L3 Cache)

    4x256 MB?!!
  • Wesley Fink - Friday, February 6, 2009 - link

    Sorry for the typo - now corrected. The first two table listings were correct at 256kbx4 L2, but the third table entry, as you pointed out, stated 256MB instead of 256kb.

    Lots of things must make you laugh if this typo has you howling with laughter :)
  • Doormat - Thursday, February 5, 2009 - link

    Two questions...

    1) Are the big 700W+ PSUs required? I'm not going to do SLI/CF or a multi-gpu card. Just a 920 overclocked with 6GB of RAM and a couple HDs.

    2) Is there a problem overclocking the cheap GB board from the value config? I was looking at that and was curious why it isn't in the OC rig...
  • Wesley Fink - Thursday, February 5, 2009 - link

    The Power Supply Question does not have an easy answer. One of the Editors sent me an email with PS recommendations for the Core i7 guide and the smallest PS he recommended was the Corsair 1000HX. Almost all the Editors at AT are overclockers to one extent or another and we have all destroyed power supplies - some used to do it almost daily. All of us also build systems and the first component to go is usually the crappy PS if we go too small or the quality is not up to par.

    With that kind of experience we have all learned it is very bad to chintz on a power supply - particularly if you overclock. You did say you planned to overclock so I would say get the OCZ 700W or perhaps even the Corsair 850W. You won't be sorry and it will serve you for a long time.

    Is 700W required - NO. Is it a good idea - YES.

    As for question #2 the Gigabyte is not the best OC board we have tested, but it is decent and should do what you want if the $300 price tags of the best X58 OC boards turn you off. For $185 it is very capable and should carry you to reasonable overclocks.


  • jky - Thursday, February 5, 2009 - link

    Why do you have different video card recommendations then the $1000-$2000 guide. There you recommended EVGA 01G-P3-1282-AR GeForce GTX 280 SuperClocked Edition 1GB and that card does not appear in these systems? Just curious since I just ordered most of what you recommended - except I bought the ASIS P6t mb.

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