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One possible explanation for this (which is mostly speculation), is to do with the HD 7770 having 10 Compute Units and the HD 7790 having 14. The latter only has 40 percent more stream processors, for example, but essentially doubles the performance of the HD 7770.
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AMD's strong relationship with DICE presently along with the fact that its hardware is in both new consoles, has likely given it a head-start when it comes to optimising its drivers for the game.Īnother interesting pattern is the huge jump between the HD 7770 and HD 7790. Nvidia cards once again appear to struggle in terms of their minimum framerates, although this isn't something that's unique to our benchmark, as during our initial testing we observed it elsewhere too. At this setting, which as we saw is very close to ultra in terms of visuals, even cards like the GTX 660 Ti and R9 270 manage to average 60fps, although the cards below these drop off a little sharper than usual. Switching from the ultra to the high preset typically results in performance boosts of between 35 and 45 percent, which is a significant increase and likely to be mostly a result of the loss of MSAA at high.
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Still, even going by average rates alone, the GTX 780 Ti and GTX Titan look rather poor compared to the R9 290X and R9 290 given the price margins between them all. It's also the sort of game that appears to have the ability to scale very well across multiple GPUs, as the HD 7990 and GTX 690 scale by 91 and 85 percent compared to the R9 280X and GTX 680 respectively (these two cards being their closest single GPU counterparts).ĪMD cards also perform particularly well, as they show less signs of slowdown than Nvidia's (as indicated by the minimum framerates), although the green team cards are more competitive on average framerates. Therefore, most people who have upgraded in the last year or so should be safe with these settings, although you'll still probably still want to tone it down a little at the low end – BF4 is certainly the sort of game that benefits from slicker framerates than 30fps, indeed we'd be aiming for 60fps. It's a fairly strong showing across the board in this test, as even the GTX 650 Ti BOOST performs with playable framerates, albeit barely, while the R9 270 and upwards maintain smoother rates of 30fps or more.
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