At the beginning of April, in order to finally overcome the lack of Zen 3 semiconductor crystals, AMD significantly expanded the range of Ryzen 5000 processors, including two eight-core processors. One of them, upgraded with the additional Ryzen 7 5800X3D 3D cache, has already received a personal test on our website. But there is also a second newly arrived eight-core representative of the same family – a more modest Ryzen 7 5700X in terms of features. We’re going to talk about him today.
When AMD released the Ryzen 5000 processor lineup in late 2020, it contained the smallest possible group of representatives. Below that were just four processors, and the octa-core below was just one — the $450 Ryzen 7 5800X. At the time, this was due to the fact that TSMC’s production capacities were overloaded, which could not produce the desired number of 7 nm semiconductor crystals for AMD, which forced the latter to exit both by artificially narrowing the range and by inflated prices. Because of this, the Ryzen 7 5800X has long been the only eight-core Zen 3 for desktop systems in many ways, and has racked up many complaints throughout its existence. In addition to the high price, the list also included a hot temper. For the octa-core Zen 3, AMD decided to ship the semiconductor chips with the highest leakage current that no other model could get. As a result, Ryzen 7 5800X typically use higher supply voltages than other Zen 3s and heat up more than the rest of the family.
But eventually, all of the Ryzen 7 5800X’s shortcomings became apparent with the advent of the competing Intel Alder Lake family. The eight-core processor offered by AMD was not only able to keep up with the representatives of the Core i7 series, but even with the cheaper Core i5-12600K by a factor and a half. In other words, the appearance of the new eight-core Zen 3 for desktop PCs is in many ways a forced step that AMD took to maintain its market position until Raphael, processors based on the Zen 4 microarchitecture, The Core i7-12700K in gaming has been assigned to the Ryzen 7 5800X3D, while the Ryzen 7 5700X has become a top price offering with an MSRP of $299, which roughly matches the Core i5-12600K.
In addition to revising the positioning, AMD also tried to fix the second major drawback of the Ryzen 7 5800X – the power and thermal characteristics. Therefore, the Ryzen 7 5700X is based on semiconductor crystals of the newer B2 stepping – the same one that also made its way into the Ryzen 7 5800X3D. This silicon is obviously of the best quality, which is directly reflected in the fitting characteristics of the new product – the thermal pack of the Ryzen 7 5700X is set not at 105, but at 65 watts.
But despite all the measures taken, the attractiveness of the Ryzen 7 5700X is anything but certain. Zen 3 processors came out at a time when Intel only had the tenth generation of Cores on the Skylake microarchitecture. Since then, the blues have taken two powerful leaps forward, and the Ryzen 5000 family is in an outdated position. And it’s far from certain that the Ryzen 7 5700X’s twisted characteristics, along with a reduced price point, will allow it to become a relevant option that really makes sense in the current conditions. In addition, AMD itself dealt a serious blow to the market positions of the novelty, which lowered the price of the Ryzen 7 5800X so much that both eight-cores began to cost approximately the same in stores.
For all of these reasons, the Ryzen 7 5700X received a separate review in which we try to find out if AMD has managed to return the appeal of the eight-core consumer Zen 3 and which of the three current-gen Ryzen 7s looks the best now as a sensible choice.
Ryzen 7 5700X in detail
If a certain processor generation stays on the market for too long, it will be supplemented by new models – this is the tactic used by AMD and Intel. Therefore, the update of the Ryzen 5000 series was not a big surprise: AMD has been offering this family of processors for more than a year and a half. However, the line of new models came out somewhat unexpectedly: the new Ryzen did not receive the suffix XT in the name and did not become overclocked modifications of existing options, but, on the contrary, turned out to be slower and more affordable.
The Ryzen 7 5700X is a prime example of this approach. We’re talking about the same eight-core Vermeer core as in the Ryzen 7 5800X, but with clamped thermal package frames. While the old flagship octa-core has a TDP of 105W and is capped at 142W, the new octa-core Ryzen 7 5700X has its TDP set at 65W and the PPT (Package Power Tracking) bar has been increased to a very high modest measure pushed down 76W. In other words, the Ryzen 7 5700X is not only almost twice as economical as its predecessor’s octa-core Zen 3, but also a processor that consumes less than the Ryzen 7 3700X (which had a PPT limit of 88W) .
Such aggressive power limitation is not in vain for the rest of the characteristics – the new B2 silicon stepping and the modified scheme for selecting suitable semiconductor crystals with an emphasis on low leakage currents do not save either. Compared to the Ryzen 7 5800X, the new Ryzen 7 5700X received a 400 MHz lower nominal clock. And in practice, the gap can become even more noticeable with true multi-threaded loads. For example, the actual frequency of the Ryzen 7 5700X with multi-threaded rendering is below 3.7 GHz in Cinebench R23, while the Ryzen 7 5800X freewheels at 4.5 GHz under similar conditions.
However, such a dramatic frequency gap is only observed in multithreaded and resource-intensive workloads. The maximum achievable frequency for the old and new eight-core differs by only 100-200 MHz – with single-thread load, the Ryzen 7 5700X can overclock to 4.6-4.65 GHz. And in general, the Ryzen 7 5700X is similar to the Ryzen 7 5800X3D in terms of pass frequencies, only without the additional 64 MB of L3 cache.
|Ryzen 7 5800X3D||Ryzen 7 5800X||Ryzen 7 5700X|
|microarchitecture||Zen 3||Zen 3||Zen 3|
|Technical process, mm||7/12||7/12||7/12|
|Frequency (nominal/turbo), GHz||3.4-4.5||3.8-4.7||3.4-4.6|
|L3 cache, MB||96||32||32|
|PCI lanes||24× Gen4||24 ×gen4||24 ×gen4|
But the Ryzen 7 5700X has clearly won in terms of temperature. If the Ryzen 7 5800X was characterized by operating temperatures of the order of 70-80 degrees, then even when using powerful liquid cooling systems, to warm the Ryzen 7 5700X to 70 degrees, you will have to make a lot of effort. Because of this, it can easily be used with low-cost motherboards with weak VRM circuits and with mid-range air coolers. Curiously, AMD itself has decided not to bundle the new product with any type of cooler, even though the company’s other 65-watt processors feature Wright Stealth.
The reason for the lack of a complete cooling system in the scope of delivery is apparently that the Ryzen 7 5700X is not intended to be used in the narrow framework of limited consumption and heat dissipation. AMD is confident that most users will opt for extra performance and turn off the stifling 76-watt PPT limit because it’s very easy to do – just enable the Precision Boost Override feature in the motherboard BIOS (or Ryzen Master utility). .
This leads to fundamental changes in the behavior of the processor, for example, with a full multithreaded load, its frequency immediately increases by 500-600 MHz – up to 4.3 GHz. But even in this state, the Ryzen 7 5700X falls short up to Ryzen 7 5800X frequencies– You can compare the frequency formula of both CPUs according to the given frequency chart depending on the number of runnable threads. The Cinebench R23 rendering test served as the reference load in this chart.
It turns out that turning the Ryzen 7 5700X into a complete analogue of the Ryzen 7 5800X with a slight movement of the hand will not work, although the clock speed of the younger eight-core processor will increase very noticeably if the consumption limits are removed. But that doesn’t seem to be enough, because in the real world, the price difference between Ryzen 7 5700X and Ryzen 7 5800X has shrunk to values close to zero. And if both processors cost the same, why buy a weaker one?
The answer to this question could be the more favorable thermal conditions of the Ryzen 7 5700X. There are prerequisites for this – at least a new stepping of a semiconductor crystal.
power consumption and temperatures
And indeed, when measuring consumption, the Ryzen 7 5700X looks significantly better than the Ryzen 7 5800X. Even without the PPT limit, the new processor works more economically, which is mainly due to the lower operating voltages, which are in the range of 1.2-1.35 V (compared to 1.3-1.45 V with the Ryzen 7 5800X). As a result, the Ryzen 7 5700X does not consume more than 121 watts even in rendering, in games the consumption is around 100 watts.
At the same time, the graphics clearly show that if you run the Ryzen 7 5700X without any further settings, with 76 watt limit PPT,enabled by default, its capabilities turn out to be limited precisely by this limit – consumption almost always remains at the set maximum, which forces the processor to slow down both in resource-intensive tasks and in ordinary games. Therefore, this mode can only be good to relieve the cooling system or the power system: In view of the active limitations, the Ryzen 7 5700X is surprisingly undemanding and a cold eight-core.
This can be estimated from the following temperature curves. (In the experiments, the same custom LSS system based on EKWB components was used for cooling.)
In performance-limited conditions, the Ryzen 7 5700X shows temperatures not exceeding 55 degrees, and this is really an excellent result for an eight-core carrier of the Zen 3rd degree microarchitecture in multithreaded rendering and 70 degrees in games. In other words, if the Ryzen 7 5800X put you off with its rampant heating, then the new octa-core hasn’t inherited this unpleasant trait from its predecessor.
As a side note, we recall that another processor released in April, the innovative Ryzen 7 5800X3D with 3D cache, has moderate heating and power consumption. It seems that AMD is purposefully striving to improve the energy efficiency of its solutions, and the new stepping of the Zen 3 die that was included in both new products allowed us to take a big step in that direction.
Unfortunately not the new core stepping and a change in the approach to selecting semiconductor chips from the Ryzen 7 5700X CPU well overclockable . The maximum frequency that we could achieve with a synchronous frequency increase across all cores was 4.5 GHz.
Stable operation in this state was possible by increasing the supply voltage to 1.2 V and activating the fourth stage of load-line calibration. At the same time, the processor temperature reached 90 degrees with these settings in stress tests such as Prime95, which can be considered acceptable heating considering the extreme load.
Thus, according to the results of simple overclocking, the Ryzen 7 5700X is almost no different from its older brother, which means that for half a year,Overclocking potential hasn’t changed much since the release of the first Zen 3. That said, the most effective approach to increasing the performance of Ryzen processors remains overclocking the memory subsystem and using the Precision Boost Override feature (ideally in conjunction with Curve Optimizer). However, the Ryzen 7 5700X is no better than the Ryzen 7 5800X here.