AMD FX Vs. Intel Core i3: Exploring Game Performance With Cheap GPUs

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Following our sub-$200 gaming CPU comparison, we put Intel's Core i3-2100 and AMD's FX-4100 under the microscope. This time, we test a number of different graphics cards from AMD to see how GPUs affect perceived processor bottlenecks.

Benchmark Results: Battlefield 3

Performance Target: 30 FPS Minimum

Battlefield 3 was obviously limited by the performance of our Radeon HD 7970 the last time we tested it. As such, we don’t expect our choice in processors to have much effect on the frame rates of our configurations. In the first round, our target is a 30 FPS minimum frame rate:

Only AMD's Radeon HD 5570 has to be forced under 1080p to hit our minimum target; we set it to run at 1280x720. Every other graphics card achieves our goal at 1920x1080.

And, as expected, there is little to no difference between CPUs as we step up from entry-level to mid-range graphics setups. The Core i3-2100 does manage a marginal lead with AMD's Radeon HD 6770, but nothing you'd notice during game play.

Unfortunately, while we see minimum frame rates that look good, the averages are very close to 30 FPS, too. So, let’s aim for a 40 FPS minimum and closer to 60 FPS average and see what happens.

Performance Target: 40 FPS Minimum, 60 FPS Average

This time we had to drop the Radeon HD 5570 to 800x600 to achieve our target. The Radeon HD 6770 dips to 1680x1050. Both the Radeon HD 6850 and 6950 are able to handle 1080p.

Even at our lower settings, the choice of CPU doesn't affect the outcome in an appreciable way. In fact, the FX-4100 scores marginally better using the Radeon HD 6850, although the advantage is not significant. Overall, we're not surprised by the outcome of our Battlefield 3 charts. After all, even AMD's powerful Radeon HD 7970 couldn't shift enough of the game's workload to our CPUs to expose a weak link.

Don Woligroski
167 Comments Comment from the forums
  • ilysaml
    Great...AMD is still capable.
    Reply
  • reyshan
    Whats with the line graph Don, it's hard to read especially with the choice of color on the lines. Bring back the bar graphs.:)
    Reply
  • jjb8675309
    This is a great article, Toms needs more budget rundowns like this and perhaps more games in the test sweet that exploit the cpu difference more...
    Reply
  • compton
    I think if you're really budget limited, but need to build a system today, buying 1155 makes a little more sense. Get a decent motherboard, then get an 1155 Celeron G530/540 or Pentium. Then save up some money, and upgrade to an Ivy Bridge CPU later. The i3 is great, but the i5s are a much better deal $/performance.

    So if you need a new system and can't afford an i5, just buy a cheap 1155 SB as a placeholder until you can . Like the conclusion states, the upgrade path is there -- I just think that if it's a temporary step, you might as well save $60 to $80 if you're upgrading in the next 4 months anyway. You'd be surprised how fast the SB budget parts are, and they're fast enough to get you through till IB.

    Reply
  • esrever
    would be nice if more benchmarks were done, there are a lot of popular games that would be nice to test like civ 5, l4d2 or similar source game, mw3, SWTOR ect. Even if some of them aren't the most demanding games it would be nice to see them as they would be more relevant than dirt 3 or battlefield 3 single player.
    Reply
  • jp182
    esreverwould be nice if more benchmarks were done, there are a lot of popular games that would be nice to test like civ 5, l4d2 or similar source game, mw3, SWTOR ect. Even if some of them aren't the most demanding games it would be nice to see them as they would be more relevant than dirt 3 or battlefield 3 single player.
    It would be nice if they through Civ 5 or MW3 in but at least on the FPS front, I think BF3 has a bigger following on the PC and the same thing goes for Skyrim. Not sure how many people are still playing Just Cause 2 though. In either case, I think this has more to do with being able to compare these results to the results from past benchmarks they've run.
    Reply
  • manu 11
    Thanks for appreciating our feedback, thank you very much. Great Article As always.
    Reply
  • lemlo
    9527590 said:
    Whats with the line graph Don, it's hard to read especially with the choice of color on the lines. Bring back the bar graphs.:)


    The line graph is better way to show it's behaviour over a period of time rather than a flat average, which doesn't explain frequent dips or long stretches of smooth gameplay in fps and such.

    A very informative and realistic article, nice work Tom's. Lets hope AMD has something with piledriver.
    Reply
  • amdfangirl
    Sucks that the Core i3 can't be overclocked like the legendary e4xxx series or the e2160 which you could get a 100% OC with.

    If DC Sandy Bridges could be unlocked, they would be so good for gaming.
    Reply
  • erunion
    Love the FPS graphed over time. Keep using them!
    Reply