CPU Reviews System

AMD Ryzen Threadripper 1950X and 1920X – AMD's core competency put to the test

Yes, so for a good read- time: The Ryzen Threadripper 1950X has a whopping 16 cores, or 32 threads, 2 TB of addressable memory (which you couldn't even theoretically use in the absence of suitable 256 GB modules), ... Since it is difficult to get a pronounced server CPU for gaming optimally fit, AMD has provided in the Ryzen Master Tool a so-called game mode, which should help the Ryzen Threadripper to offer more performance in the current games. En... The AI test of Civilization VI is not a prime example of the Ryzen threadripper. Only the combination of overclocking and game mode (but only then) surpasses at least the Core i7-7820X. In the VRMark you can find the hierachia between the ... Frames per second Clock goes before core count, whereby the subtleties in detail again matter. Average and minimum FPS values are not everything. Nevertheless, all Ryzen Threadripper perform quite acceptable. The FPS history as a cure... Frames per second Clock again precedes core count, a typical symptom especially for older DX11 titles or Games whose engines don't really scale well with the number of possible threads. The FPS history as curves over the entire ru... Frames per second Why aren't we surprised? Clock is again (almost) everything, so that even the performance of the overclocked CPUs does not really surprise us. However, we refer to our detailed lists below, because also ... Frames per second Hitman (2106) is an Intel domain, which hasn't changed with Ryzen Threadripper. The differences in this benchmark are really serious. Despite or just because of DirectX12?  The fact is, however, that from approx. 140 FPS about... Frames per second The stronger CPUs are not so far apart in the end, which may also be due to the fact that the graphics card already starts to limit easily. However, despite the higher clock speed, the Ryzen Threadripper 1920X can not... Frames per second All CPUs are at a similarly high level, but there are differences. The FPS history as curves over the entire run looks like this when comparing all CPUs: Total Listing: Frame Times, Variance... Frames per second All CPUs are almost the same, which of course is also due to the graphics card. However, it also shows very nicely that you don't always have to have the thickest CPU to swim with older titles at the top. ... Frames per second Clock goes over core count and Intel dominates AMD. The differences are sometimes really serious. The FPS history as curves over the entire run looks like this when comparing all CPUs: Total listing: Frame Times, Va... Frames per second Clock goes over core count and Intel dominates AMD again - it's a similar image to Project Cars. The differences are mainly found in the Frame Times and their variances, but also the more detailed consideration of the... Frames per second We'll again forgo the game's slightly crashed DX12 mode and prefer to measure with the IX11 implementation. No matter which rendering path, AMD must beat the Intel CPUs in all variants. That doesn't mean it... Frames per second At first glance, the differences are rather marginal, because even with Ultra-HD, graphics-side limitations already occur. Nevertheless, it has above all the frame time and its variances in itself. Clock goes before Kerna... Important preliminary remark on CPU selection and overclocking Contrary to our usual handling, not benchmarking the productive areas with overclocked CPUs, as it is also rather unlikely in reality, this time we have both Ryze... 2D Performance In order to better understand some of the later results, we are putting forward a good old acquaintance. With our GDI/GDI+ benchmark, we are first testing two different output methods for 2D objects, how to... CPU Performance: Workstation Of course, in the production area, not only the 3D graphics performance is important in the production area for the just-set applications, because many things are calculated by the CPU in parallel within these applications (Simu... For these test series, we use benchmarks from the rather versatile SPECwpc suite for workstations, which rely on very different mathematical calculations, which on the one hand can be perfectly parallelized and where it is at the same time a... The right cooling is important! One thing in advance: AMD dispenses with thermal paste between Die and IHS at the Ryzen Threadripper, but relies on the good old lot. This will open up completely new perspectives for us later on in the case of overclocking. En... Introduction We determine the performance values of the package in a special sensor loop, i.e. exactly the value for what is absorbed by the CPU in terms of power and then almost completely returned to the cooling system as heat. Surely it would be unfair and hateful if AMD were simply to be assumed, as with the Vega Frontier Edition, that everything that does not make it to the top positions in gaming is simply as productive hardware for the so-called prosumer (o...


We determine the performance values of the package in a special sensor loop, i.e. exactly the value for what is absorbed by the CPU in terms of power and then almost completely returned to the cooling system as heat (power dissipation). To check the plausibility of the read-out sensor values, we made random shunt measurements and measured the total power consumption at the EPS supply connection (current pliers and voltage measurement).

What is read out by the voltage converter of the motherboard as a CPU value (HWinfo64) is to be regarded as sufficiently accurate, even if the measuring intervals are greater than in our measurement on the oscillograph. To stay fair, we also measured the Intel Core i9-7900X once again in overclocking at 4.5 GHz and recorded it in the graphics.

We must point out that the Ryzen thread rippers also use different partial voltages for the SOC/SMU rails for different clock rates. If you evaluate the performance of the entire package, these partial voltages, which depend on memory clocks, also have a big influence on the values determined! AMD had advised us to operate the 32 GB as DDR4 3200 within the scope of the stored profile. However, if this memory were operated with the standard SPD values of DDR4 2133, the power consumption for the package would be at least 15 watts lower!

Furthermore, both CPUs are designed for a power consumption of up to 180 watts at the default settings. However, if the memory is overclocked, the CPU will be missing exactly this approx. 15 watts in the power window, which of course can also affect the performance on a case-by-case basis if you use all cores to the full and thus get too close to the upper limit!


The power consumption in the idle is slightly more than twice as high as with Ryzen 7, but it should be remembered that both thread rippers have two these times in comparison to Ryzen 7 also higher clocking as soon as isolated loads occur. In the overclocked variants, the higher voltage also comes into play. We just wrote something about the store. For example, with DDR4 2133, the Ryzen Threadripper 1950X would only be at approx. 32 watts.

CAD workload

AutoCAD 2016 rarely uses more than two to three processor cores, usually only one, but quite intensively, in the usual work and output in the model and paper space. Therefore, it is not surprising that the power consumption only increases by a maximum of 15 watts compared to the idle, which is not a real idle. Nevertheless, the values of the two overclocked variants are another 14 watts higher, so that a difference of almost 30 watts can be recorded again for the idle. And then there's the memory…

Gaming Loop

The problem with gaming is that the many cores are mostly in each other's way and the overall performance is not so outstanding. The power consumption in the non-overclocked state is comparable to that of the Intel Core i9-7900X, even if its gaming performance is significantly higher. There are also parallels to the 3D real-time performance of the CAD applications we test.

Maximum power consumption

The stress test opens all the locks, especially for the overclocked variants. However, in order to save the honor of the Core i7-7900X, it must be noted that the high power consumption in the non-overclocked state is causally at the expense of the motherboard, which does not lower the clock rates in accordance with the rules, but leaves a lot high . see also our article about the problem of the Core i9-7900X on the X299 motherboard).

Both Ryzen Threadripperhavehavehave have nothing to fear here, because the Asus X399 ROG Zenith Extreme covers the power consumption in the default settings to 180 watts. This only becomes much more extreme if you manually overclock to get the maximum clock frequencies out. At 1.425 volts for the 4.1 GHz of the Ryzen Threadripper and the 1.35 volts for the larger 1950X for the 3.9 GHz, the final result looks as expected as we know it from the overclocked core i9-7900X, which at 4.5 GHz on all cores at about the same level. beyond the 300-watt mark.

Intermediate conclusion

The fact that two almost identical dies in the end even absorb more than twice as much power in places as a single one is due to the nature of the adjacent load. This is to be expected when all cores are fully utilised. In addition, at least with the Ryzen Threadripper 1920X we were able to exceed the limit of 4 GHz stable and to be able to use all 24 threads in a targeted manner at 4.1 GHz. As long as well-parallelizable tasks are completed and the compiled applications fit, the high power consumption is again relativized by the delivered application performance.

Gaming efficiency, on the other hand, is significantly lower than skylake-X's. This is where the Intel CPUs get the much higher IPC to their aid. A large part of the recorded extra power of the Ryzen Threadripper is also at the expense of the so-called "basic noise" of the CPU, because already in the idle it is already about the 15 watts, which one absorbs more power. If this were to be calculated in the gaming loop, for example, the Ryzen Threadrippers are suddenly not so bad, because the then lower increase in power consumption compared to the idle is also in proportion to the lower Gaming performance.

Danke für die Spende

Du fandest, der Beitrag war interessant und möchtest uns unterstützen? Klasse!

Hier erfährst Du, wie: Hier spenden.

Hier kannst Du per PayPal spenden.

About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

Follow Igor:
YouTube Facebook Instagram Twitter