AMD Ryzen 7 2700 Overclocking Review

With the AMD Ryzen 7 2700 down to as little as $255, now is the time for us to discuss exactly what the benefits, if any, there are to purchasing the 2700 rather than its more expensive 2700X. If you consider yourself a computer hardware enthusiast, and are building a new system any time soon, you will want to give this a read.

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System Setup

All our testing here was done on a different motherboard than previously, with newer driver updates than our previous articles, so you will see some differences if you compare. This Gigabyte motherboard has shown to give us a bit more memory bandwidth than we saw on the previous two motherboard we have tested on. We reran all our 2700X data so we have true apples to apples comparison. The only changes between the hardware are the CPUs only. The motherboard used is the GIGABYTE X470 Aorus Gaming 7 WiFi ($180 / review soon). We are using 16GB (2x8GB) of GSkill Sniper X 3400MHz rated RAM. The GPU is a GTX 1080 Founders Edition and the PSU is a Seanic Prime Ultra 1000W Titanium.

Our water cooling loop is from XSPC and consists of a RayStorm Pro AM4 waterblock, RX480 V3 Radiator, and D5 Photon Reservoir/Pump Combo V2.


Synthetic Arithmetic Benchmarks & RAM Bandwidth

As always, synthetic benchmarks are a good marker for performance, but are far from the end-all be-all of the CPU measuring stick. That said, there is value to be found in these metrics. We generally use these for finding out if anything is "wrong" rather than when something is "right."

SiSoft Sandra 2017

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When looking at the Precision Boost 2 (PB2) numbers we immediately see a healthy lead taken by the 2700X with PB2 over the 2700 with PB2 which represents a ~17% increase. When we manually overclock our 2700 to 4.2GHz, we see it take a small lead over the 2700X, but that also represents a ~20% increase over its stock PB2 numbers, which is sizable. Worth mentioning is that this benchmark uses all cores and threads on the CPU.

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As you might have guessed, since we are not touching the RAM clocks in these tests, our memory bandwidth is "identical" across all configurations. That said, this GIGABYTE X470 Aorus Gaming 7 WiFi has returned the highest memory bandwidth, by about 5GB/s, than any other board we have tested so far.

Hyper Pi

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We run Hyper Pi on a single core. Comparing PB2 scores, the 2700X gives us a 14% decrease in time to complete over the 2700. The overclocked 2700 at 4.2GHz is also beat out by the 2700X, but by a lesser ~8% decrease in time. As we have seen, the 2700X PB2 will boost a bit beyond our 4.2GHz overclock in lightly threaded loads.

wPrime

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As noted, this benchmark reaches into half the cores on our Ryzen processors. Again we see the 2700 PB2 lagging behind our 2700X PB2, and the 2700X gives us an ~8% decrease in time to completion. With a bit more core workload, we see the overclocked 2700 and 2700X PB2 reach parity.