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To: shadowman who wrote (517)2/25/2017 6:48:34 AM
From: FJB3 Recommendations

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AMD Ryzen 1700X Benchmarked, Beats Kaby Lake In IPC / Single-threaded Performance

wccftech.com

Now, it’s important to mention that these performance figures do come with at least one caveat. Each core in the Ryzen 7 1700X has access to approximately 33% more cache. This is because each 4-core Zen complex has access to 8MB of L3 cache, while the 4-core Kaby Lake complex in the i5 7500 has access to 6MB of L3 cache. To try and even out this disadvantage we’ve taken the single-threaded score of the i7 7700K, which turbos to 4.5GHz, and compared it to a Ryzen 7 1700X score that’s been scaled up to 4.5GHz. Since the amount of L3 cache per 4-core complex in both chips is an identical 8MB.



We can see that Kaby Lake does make up some ground when we eliminate the cache disadvantage of the i5. The i7 7700K manages to narrow the IPC gap from about 12% down to 5%. This indicates that the Userbench single-threaded test does enjoy an abundance of L3 cache.

It’s still very important to note that one benchmark isn’t the be all and end all of performance and IPC. It’s safe to assume that some workloads will favor Intel’s Skylake/Kaby Lake microarchitecture while others will favor AMD’s Zen. But what these figures do tell us is that this is going to be a really close match-up with both microarchitectures trading blows. Although we can’t deny that what AMD has managed to achieve in a single generation with Zen is truly phenomenal.
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