Budget System Builder’s Guide February 2011
by Zach Throckmorton on February 14, 2011 12:00 AM ESTBase System Performance Summary
For performance comparisons, we'll turn to AnandTech’s Bench; while the individual components aren't identical to our budget system builds, in most cases the difference is small enough to not matter. Bench doesn't have the AMD Athlon II X2 250, so we've used the 255 for this comparison (the 3.3% clock speed difference is negligible). Here's how the two CPUs compare, again using standardized components—in most cases faster components than what we're using in our budget builds, but we'll discuss some upgrades in a moment.
The two chip makers’ products perform similarly, with the Pentium edging out the Athlon II in more benchmarks than the Athlon II edges the Pentium. However, in terms of real-world general usage, the two systems are similar. The AMD system is about $50 less expensive, and is therefore the recommended build. That said, we can always use the $50 for an upgraded CPU, like the Athlon II X4 640; that results in a system that handily bests the G6950. (Note that Bench doesn’t have the 640, so the 645 is used instead—another marginal 3.3% clock speed difference.) Thus, at just under $500, the quad-core AMD system is strongly recommended. Intel still edges out AMD in power consumption, but $10 or so per year for 24/7 use is hardly worth mentioning—the Intel setup might "pay for itself" in power savings eventually, but you'll probably want to upgrade again before you reach that point.
CPU Upgrades
AMD offers five compelling CPU upgrades to the Athlon II X2 250. The Athlon II X3 435 is only $11 more expensive; for that $11 you gain an extra core, though each core is very slightly slower at 2.9GHz instead of 3GHz. 
Unless your budget is seriously constrained, or you’re concerned about the slightly greater amount of heat produced (it’s a 95W TDP chip while the X2 250 is a 65W chip), the X3 is an excellent upgrade. As mentioned above, the Athlon II X4 640 is a quad-core processor and $39 more expensive than the X2 250.
Moving into the higher cost/performance realm, the Phenom II X4 955 Black Edition appeals to overclockers and performs better than the Athlon II X4 640, and is about $80 more than the base system’s X2 250. The least expensive, lowest clocked Black Edition CPU will typically overclock as well as the more expensive options, so there’s no real reason to go above the 955 BE. Finally, AMD offers hex-core CPUs starting at $180 ($120 more than the X2 250). The Phenom II X6 1055T is not unlocked like the Black Edition 1090T, but if you’re not overclocking there’s no reason to spend the extra $20; at stock speeds, they’ll perform very similarly. Thuban CPUs definitely aren't budget parts, so unless you're interested in some serious number crunching (or video encoding, 3D rendering, etc.) we'd draw the line at the 955 BE. Anyway, you can check Bench to see whether any of the above upgrades are worth the extra cost given your needs.
Intel offers only a few CPU upgrades that even remotely qualify for the budget range. At the very bottom is the i3-550 for $130, or there's the slightly faster i3-560 for $150; that's $30 and $50 more than the G6950, respectively. While we don't have either of those i3 models in Bench, you can see that the older i3-540 offers substantially better performance than the G6950. 
The i3-550 is clocked 4.5% faster than the 540 and the i3-560 is clocked 9% higher, so the gap would be slightly larger than what the Bench link shows. For a 30-50% higher cost the performance gain is nowhere near as large; on the other hand, the 10-20% increase goes well with a 5-10% increase in total system cost.
The other Intel CPU alternative is the i5-760, priced at around $210. That's $110 more expensive than the G6950, but it offers incredible computational power while sipping power relative to the higher-performing AMD CPUs. Of course, you'll also need to add in the cost of a discrete GPU, so you're looking at around $250 minimum for this upgrade. While some of these CPU upgrades are interesting, if you're looking at anything more than a budget Intel setup you're probably better off waiting for the Sandy Bridge chipset bug to get sorted out (which would also remove the need for a discrete GPU).
If you go with the most expensive AMD processor (Phenom II X6 1090T) and the same for Intel (i5-760), you're looking at a total cost of $570 for AMD compared to $581 for Intel. The two processors are pretty evenly matched, with the Intel chip pulling ahead in single core tasks and the 1090T defeating the i5-760 in tasks that can use multiple cores. Note that the i5-760 uses much less juice, so unless you are an incredibly intensive multi-tasker or use mostly multi-threaded applications, the i5-760 would be the better buy (or as mentioned, wait for Sandy Bridge to come back).
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DLimmer - Wednesday, February 16, 2011 - link
Very good guide. I feel that my thoughts aligned closely with Zach's.I agree, Core unlocking isn't a sure thing, but the opportunity to unlock to 3 or 4 cores is very attractive and probably should be mentioned.
Recently created my own system for storage and video transcoding using the following:
AMD Phenom II X2 555 Black Edition (unlocked to 4 cores) = 955
ASUS M4A87TD EVO AM3 AMD 870 SATA 6Gb/s USB 3.0 Motherboard
Antec TruePower New TP-650 650W 80+ Bronze
Antec Two Hundred(v2) Black ATX Mid Tower Computer Case
I spent a little extra on Memory and Hard drives:
Kingston 4GB (2 x 2GB) DDR3 1333 ECC Unbuffered Memory
WD Caviar Black 640GB 7200 RPM SATA 6.0Gb/s
4x SAMSUNG Spinpoint F4 2TB 5400 RPM SATA 3.0Gb/s
I considered the ASUS 380 Earthwatts and the 500 Earthwatts, but chose the TruePower due to its modular design. The 500W would be a little low if I upgraded to a more powerful video card than an old one I had from a retired system.
trogthefirst - Tuesday, February 15, 2011 - link
As a long time Intel user (E2140) and after the whole SB mess i decided to go with my wallet and hit this awesome $190 965BE + MSI 870A-G54http://www.microcenter.com/specials/promotions/AMD...
paired with my just arrived HD 6950 i cannot believe how a nicely priced machine from 'the other' chip maker makes way much sense! Good article but i have to go with the other dude about Toms SBM - particularly their Dec 2010 $500 SBM : now thats a killer price/performance little monster if i ever saw one!
http://www.tomshardware.com/reviews/build-a-pc-ove...
HangFire - Tuesday, February 15, 2011 - link
Good article. Like the Delta-built P/S recommendation. I made something very similar a few months ago, but I went for a Seasonic-built Corsair 400CX (no longer available) and a closeout 550BE, that both unlocks and overclocks like a dream. I got all components on sale or at MicroCenter. This month I just added a TD/EVGA/Smith 9800GT for $49.99 delivered, a little dated for gaming but overkill for my Linux needs. The final result makes the Intel tax, well, very taxing indeed.However you forgot the cost of the power supply cable. It's not included with the EarthWatts. Since this is a new build, it might be too much to assume that one is lying around- just like other sites forget in their builder's guides that Windows 7 actually costs money.
OK, that's a small niggle. Welcome aboard, Zach.
HangFire - Tuesday, February 15, 2011 - link
Web update issues?shamans33 - Tuesday, February 15, 2011 - link
You can save $15 by going with a 760G chipset motherboard. The integrated graphics won't be as powerful but maybe it's just for everyday task use.Also, the PSU can even be more budget as well...I doubt that most people would break the 200W barrier.
Additionally, a budget build often benefits from going with a SFF case/mobo/psu. Less demanding users tend to place a larger premium on the footprint occupied by the system (and/or noise from it).
I think there needs to be recommendations for a budget build aimed at the Mini-ITX size. A bonus is that many Mini-itx motherboards come with wifi features.
JarredWalton - Friday, February 18, 2011 - link
We're hoping to have a guide for the mATX and mini ITX crowd in the near future. We'll look at other options for cutting down costs and power, but you'll probably lose performance on some of the builds (i.e. Brazos E-350).infoilrator - Sunday, March 13, 2011 - link
The problem with smaller form factors is you lose performance per dollar and easy upgrades. Quality parts made smaller often cost more. And more to replace.The Sandy Bridge I3 may change that but it seems unlikely. If you know of an $500 build as good as those listed please list it here. Including wifi is an easy option.
SOmetimes small is better and all you need is all you need. For me I like the advantages of a mid tower build. Including wifi makes sense since mostly there are only two expansion slots. Put a video card in one, and you have ONE choice.
L. - Wednesday, March 16, 2011 - link
Just sayin', but if you're going for a cheap system and you're ready to shell out 100 bucks for an SSD, you need to forget the SSD and get a real Graphics board instead, which in turn will make you buy a Corsair PSU, then to justify it all you trash the CPU, get a real phenom II, some decent RAM and hey .. you're still below 800 and you've got 50% more 3dmarks.Also, geez cut the crap with this ugly screen, there are 22" full Hd pannels for around 200, get a real screen, watch x264 1080p and be happy (yes this is a much more important upgrade than SSD or even the better Graphics board).
Really, considering the usual value of information on Anandtech this builder's guide is surprisingly bad.
Also, you may contact me if you want me to write the next one, I'm kind of interested in that stuff anyway.
So, without optimizing and not including a windows license (we all have one already anyways, don't we ?), here's a little joke to show how much more you can get for 800 bucks.
All on the egg:
Antec 300 (i hate it but hey .. I don't have time to find a better alternative - and there are many) (55)
WD Caviar Green 1 TB (yes that's much better than a samsung hdd and you don't get an ssd if you go cheap computer) (59.99)
AOC E2243FW (they make monitors really ? anyway that's a led backlit full had 21.5" monitor) (154.99)
Gigabyte GA-880GMA-UD2H (yay USB3, SATA6 and some decent pcie action) (89.99)
Gigabyte GV-R6870OC (yes, I like Gigabyte and there's a reason for that, it works) (229.99)
Corsair Builder (cheap) series CX430 (more than enough for this build although It's really cheap) (44.99)
G.Skill 4GB ddr3-1600 (cheap choice but hey.) (47.99) - i'd definitely look further to choose a nice overclockable model rather than the first cheapest on newegg .. but hey this is just to demonstrate
AMD Phenom II X4 955 BE (3.2ghz, 125W I don't like it that much but it's cheap and OC-able) (139.99)
Total : 822.88
After Mail-in rebates (as counted in your example cuz Antec300 comes @ 45) : 782.88
And I'd bet my shirt this setup fares so much better in every situation, including movie viewing and gaming.
Of course if you're going to overclock (which is the main interest in a cheap system) I would suggest getting a decent Corsair PSU like mine (something along the lines of HX750 - can't remember precisely).