Synthetic Benchmarks – AIDA64 and Geekbench3
We’ll start with the usual, synthetic suspects – Geekbench 3 and AIDA64. Gear 2 allows higher clock speeds as expected, but other than that we can’t see much difference between Gear 1 and Gear 2 at first.
We also see almost the same picture in the write test, Gear 1 and Gear 2 are on par in terms of data thirst. And those who tick faster can process more data, no surprises.
In the copy test we now see the first noticeable regressions in the Gear 2 compared to the Gear 1 setups that go beyond measurement tolerances and amount to 2-3%. The reason for this, as we will see in the next diagram, is the significantly higher latency of the 1:2 ratio, which is the Gear 2. Also noticeable is that the dual-rank configs are each ahead of their single-ranked pondant by an almost identical margin.
As just spoiled, we see the actual biggest differences between Gear 1 and Gear 2 in the latency test. Interestingly, the percentage loss shrinks as the clock rate increases, although the timings actually get slightly tighter in proportion. But that’s exactly what you want, because at lower clock speeds, where the Gear 2 disadvantage would be greater, you can use Gear 1 anyway. The higher the clock speeds get, the more efficient Gear 2 becomes, so at DDR4-4000 we’re only a slight 5 ns away from DDR4-3200 in Gear 1.
In Geekbench 3, we see everything summarized and weighted into a score once again. Exactly this weighting is the crucial point, because the configurations with the highest clock rate are always found right at the front. Only with the same clock rate do more ranks or lower gear become important. This is another good example of how every application – whether synthetic or real-world – has its own specific CPU and RAM preferences, and while benchmarks like the ones we’re looking at today give a rough and usually reliable indicator, ultimately you’d have to look at each application individually.
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