System Builder Marathon, March 2012: $650 Gaming PC

Is It Unbalanced, Or Right For Gaming?

It’s no surprise that our new value-oriented PC got smoked by the System Build Marathon’s overall performance weighting, considering we built it purely to game at native resolutions. If you're buying an affordable gaming display today, it'd probably be a 1920x1080 display. If you're using something a few years old, it might be a 1680x1050 screen instead.

In that context, we're comfortable dropping the influence of our CPU-limited low-resolution tests in order to focus on the best playable settings at those more interesting settings. In the chart below, we average performance in our six comparable games, considering only the highest-quality results in all but one of them. Metro 2033 was unplayable on both systems using 4x MSAA and the DoF filter enabled. So, we instead count the lower-detail benchmark numbers in this title.

On average, today's stock platform outperforms last quarter's by 9% at 1680x1050 and 10% at 1920x1080. It comes out on top in five of the six titles, leading between 5-16% at 1680x1050 and 9-17% at 1920x1080. A lone defeat is suffered in StarCraft 2, where the lower-end CPU inhibits performance to the tune of 3% and 2%, respectively, at both of our important resolutions. That’s a fairly insignificant loss, though, when minimum frame rates didn't drop below a very-smooth 72 FPS. If you're not looking to tamper with overclocking, today's build certainly offers more raw potential for a better native-resolution gaming experience.

Combining a 10% graphics core clock increase, a 12.4% graphics memory overclock, and lower system RAM timings leads to 10% higher frame rates, on average, from last quarter's build. That’s amazing overclocking efficiency, which must have successfully targeted the platform's main bottlenecks. This month we only achieved one-half of the core overclock, and less than a third of the memory boost. Staying within the bounds of AMD's Overdrive applet certainly handicapped our overall potential. Yet, even this small boost was enough for this quarter's overclocked PC to secure quantifiable victories in Battlefield 3, Crysis, and Metro 2033.

In reality, both builds offer solid gaming at 1680x1050 and 1920x1080. While we hope game developers continue pushing the limits of PC hardware, a majority of popular games aren't as demanding as the titles we test. Often, the difference between a Radeon HD 6870 and 6950 come down to the amount of anti-aliasing you can apply and still see playable performance.

It takes an entire platform firing on all cylinders to deliver a smooth gaming experience. Beyond hardware, even the efficiency of game code or the maturity of graphics drivers need to be considered. Although we know how important a graphics card is for pushing high detail settings at native resolutions, we don't want to undermine the role a capable processor plays in games. The wrong CPU can artificially limit performance at low resolutions, and hold us back from seeing a GPU's maximum potential.

Today’s system accomplished its goal of providing a higher degree of raw muscle for 1920x1080-based gaming. How much you’d benefit from the decisions we made depends on the games you like to play, the resolutions you use, and the details settings you select. I'm a graphics fanatic, and always find a way to appreciate bigger and badder graphics subsystems. 

Our test suite makes it clear that last quarter's $600 PC, with its Core i5-2400 processor, better serves the demands of a broader audience. Today's Core i3-2120 falls flat in demanding productivity applications. We're just glad that it doesn’t throw our system out of balance for our intended purpose.

  • yukijin
    so now that all the 6950's are deactivated or $289+, is this build invalid? because a 7850 is looking really good right now...
    Reply
  • tristan_b
    What yukijin said.
    Reply
  • whysobluepandabear
    I appreciate what they're doing, but at some points, I can't help but feel like a cheap bitch.

    Making decisions overly measly amounts of money ($10) is just dumb. Work an extra day and just get the hardware you want. Or, don't go to the movies or out to eat for a few weeks.

    To me, there's a certain area, at which being cheap, just rips you off - you'd be better off spending a little more, and getting a much better item.
    Reply
  • How do I win this????
    Reply
  • mortsmi7
    Let me get this straight... you raised the budget $150 "as a result of steep price hikes on mechanical storage", then only spent $85 on a HDD. You really just wanted a more expensive graphics card. You could have taken the $70 processor savings and the $65 under-budget HDD savings and nearly have had a $500 build.
    Reply
  • de5_Roy
    very good read.
    nice to see where core i3's limits lie.
    i wonder if you guys will consider amd's new fx 6200 or fx 8120 for the $1200 build, with 78xx series in cfx.
    Reply
  • serhat359
    if I had $600 for a PC, I would go with i3-21xx, 6870, a better mobo and a better case.
    it is probably the best thing to do
    Reply
  • SpadeM
    whysobluepandabearI appreciate what they're doing, but at some points, I can't help but feel like a cheap bitch. Making decisions overly measly amounts of money ($10) is just dumb. Work an extra day and just get the hardware you want. Or, don't go to the movies or out to eat for a few weeks. To me, there's a certain area, at which being cheap, just rips you off - you'd be better off spending a little more, and getting a much better item.It's not an issues of whether they had the money or not, it's a matter of principle, you set your budget and goals at a certain point and then you make choices. Sure, not everyone will be happy with what they chose but that's what forums are for.

    Anyways, anything a bit over 60fps (on a 60hz monitor) really isn't that bad, i mean you might lack the bragging rights but at the end of the day, it's about gaming and feeling satisfied that you shot enough monsters. To further empathize that having 70 fps constant is not total shit because another GPU can serve you 130 (as if you're going to notice without watching the fps counter) my one suggestion for this SBM would be to introduce a different style of graphs. Below 30fps all the colors of the bars to be grey and over 60 the same thing. This to focus the attention on most relevant (to my opinion) segment. I've seen a lot of ppl chase those fps numbers, buying expensive GPUs only to have them sit in a bad enclosure, sub par motherboard or weak CPU.
    Even in gaming, i believe balance is key.
    Reply
  • confish21
    Great Job! These builds keep me at Tomshardware!

    Only thing 1 thing, you said an I3 was used instead of an I5 on this page...
    http://www.tomshardware.com/reviews/build-gaming-pc-overclock,3159-8.html
    You can check the 600 dec build here...
    http://www.tomshardware.com/reviews/core-i5-overclock-performance-gaming,3097.html
    Pretty sure an I5-2400 was used.
    Reply
  • jerreddredd
    I'm glad they used a i3 2120 for the CPU, but I wish they would have used some of the newer cards like the HD 7950 or the GTX 560 Ti 448. these are roughly the same price. Spending and extra $20 on a PSU was a waste. the EA430D and 380W are the core of the budget build. I would like to see some testing of a few of the less expensive PSU ($50 or less) to see which are junk and which aren't bad.
    Reply