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4GHz CPU Battle Ryzen 3900X vs. 3700X vs. Core i99900K TechSpot

Written By Monday, July 22, 2019 Add Comment Edit

Expanding upon all of the checking out we accomplished in our day-one 3rd-gen Ryzen insurance, today we're going to be running a clock-for-clock comparison benchmark. IPC stands for "instructions in line with cycle" and it may be a terrific indicator of a processor's structure efficiency. Traditionally Intel Coffee Lake CPUs have presented high IPC coupled with a excessive working frequency and that’s the first-rate aggregate for optimum overall performance. Although AMD remains trailing in terms of frequency, they seem to have closed in and possibly handed Intel’s IPC performance with this final replace.

To see how tons headway AMD’s made here, we’re going to neutralize as many variables as we can, while also maintaining things as practical as feasible.

The first and most apparent step is to remove center frequency from the equation and to try this we’ve locked all CPU cores at 4 GHz. Any form of improve era has been disabled, which means the cores can't pass beyond 4 GHz and all cores are clocked at 4 GHz. Then for the Ryzen 9 3900X we’ve disabled two cores in each chiplet, taking it from an 12-core part all the way down to an 8-core part. All CPUs tested could have 8 cores energetic, however wherein the 3700X has all of them in a single die, the 3900X spreads the cores across two dies (two 4-center chiplets).

The 3rd-gen Ryzen CPUs have been examined on the Gigabyte X570 Aorus Xtreme the usage of the AGESA 1.0.0.3AB BIOS revision, 1st and 2nd-gen Ryzen had been tested at the Asus ROG Crosshair 7 Hero, and the Coffee Lake CPUs at the Gigabyte Z390 Aorus Ultra. All configurations used the same G.skill FlareX DDR4-3200 reminiscence the usage of the xtreme memory profile and the equal MSI GTX 2080 Ti images card.

A small disclaimer we adore to feature for this type of article: we're trying out basically for the technology of it and this isn't always shopping for advice. The Coffee Lake CPUs without a doubt have a clock pace advantage out of the box, however that doesn’t necessarily cause them to the high-quality preference. For real-international overall performance please talk to our current Ryzen 9 3900X, 3700X and R5 3600 reviews.

Meta Tip: Do you spot some thing familiar? We are reusing the masthead photograph from our 4GHz CPU Battle from April2019 whilst we tested 2d-Gen Ryzen in opposition to Intel's 8th-gen Core CPUs.

Application Benchmarks

We already know Ryzen tends to dominate in workstation responsibilities inspite of a clock speed drawback, but there's greater to study these numbers. In Cinebench R20's multi-middle rating the 3900X and 3700X supplied more or less the equal overall performance, making them round 14% quicker than the 9900K when matched clock-for-clock. Moreover, they had been 18% faster than the previous-gen 2700X. That’s a tremendous development in IPC performance.

Testing unmarried middle overall performance sees a thirteen% overall performance uplift for 3rd-gen Ryzen components over the 2700X. They were also 9% faster than the 9900K, so quite excellent stuff from these new processors.

The twin chiplet design of the 3900X progressed overall performance within the V-Ray benchmark by means of 2% over the 3700X, now not a full-size distinction but it was continuously faster on this take a look at. This meant whilst matched at the identical clock velocity, the 3900X become 6% quicker than Intel’s i9-9900K and 13% quicker than the 2700X.

Using the Corona benchmark, this time the 3900X was 3% quicker than the 3700X. The 3900X become also 5% quicker than the 9900K and 16% faster than the 2700X. Now let’s see how matters appearance in some video games.

Gaming Benchmarks

The first recreation we’re sorting out is Battlefield V. Despite a hefty discount in clock velocity, the Core i9-9900K still manages to take the top spot. The 1% low performance became very extraordinary and here the 9900K was 9% quicker than third-gen Ryzen processors.

When looking on the common body price we see that the 3700X became 8% quicker than the 2700X, at the same time as the 3900X became 13% quicker. This manner that even if matched at the equal clock speed with the same quantity of cores, the 3900X continues to be 5% faster than the 3700X, very exciting.

The 9900K also takes the primary place in Far Cry New Dawn, beating the 3900X with the aid of a 5% margin for the common frame charge, and 10% for the 1% low end result. This is at the same time as jogging at a frequency lower than out of the box.

That's no longer to mention AMD hasn't taken a noteworthy bounce: the 3900X changed into a complete 20% quicker than the 2700X, even as the 3700X supplied a 16% performance development.

Even at 1080p with an RTX 2080 Ti, Total War: Three Kingdoms is mostly GPU certain. We can still see some development to the 1% low consequences and again Intel comes out on pinnacle.

World War Z has acquired an update that dramatically improves overall performance. This update sees Ryzen processors carry out significantly better and now the 3900X is able to kind of in shape the 9900K in our IPC check.

The dual chiplet 3900X became again a chunk quicker than the single chiplet 3700X, supplying a 4% bump for the average frame fee. The 3900X become 14% quicker than the 2700X, while the 3700X become 9% faster.

Another recreation we determined to check out was World of Tanks. This title was these days redesigned to take better gain of multi-middle CPUs. When matched at the same clock speed the 3900X furnished marginally higher 1% low performance than the 9900K, while common body charges were about the identical.

The 3900X turned into faster than the 3700X by using 4% and a complete 13% faster than the 2700X.

The last sport we are searching at is Rainbow Six Siege. Even although this name is normally GPU sure, we see the 9900K appearing an awesome bit faster when searching on the average frame price. 1% low performance become nearer across the board.

Memory and More

Something we determined when first checking out the Ryzen 7 3700X became the lots lower-than-anticipated write reminiscence bandwidth. After discussing this with AMD, they explained they made a compromise right here as client workloads do very little writing. Rather than the usage of this space to enhance some thing that isn’t wished, they invested the silicon actual estate in extra useful ways to obtain performance profits.

The give up end result being that the Core Complex Die to IO Die link for analyzing memory is 32 bytes extensive, however it’s handiest 16 bytes huge for writing, and this is why the height write bandwidth is successfully cut in 1/2. However, due to the fact the 3900X has two CCDs it capabilities two 16 bytes extensive lanes for writing and this brings the height bandwidth again up to round 50 GB/s.

Moving on to cache bandwidth we see the 3700X and 3900X are sincerely same and each provide massive gains for L1, L2 and L3 bandwidth over the second-gen 2700X. L3 cache bandwidth has been multiplied anywhere from round 40 to 50% with third-gen Ryzen.

We additionally see a 30% development in L2 bandwidth and an almost 100% growth in L1 bandwidth. That’s an high-quality performance uplift and it goes a protracted manner in explaining why we noticed one hundred% overall performance gains in applications inclusive of WinRAR.

As for reminiscence latency, not an awful lot has changed. If something we’ve seen an increase in reminiscence latency from second-gen Ryzen and we see this whilst looking at DRAM and L3 cache latency. The DRAM latency is 50% higher than that of the Core i9-9900K and this could be partially answerable for the distinction in gaming overall performance simply visible.

Another cause for the marginally decrease gaming performance is center latency. When in comparison to 2nd-gen Ryzen, the more moderen architecture is a huge development. For the exceptional matched cores we’re seeing a 30% reduction in latency and as a minimum a 26% reduction for the worst matched cores. This approach best case the core to core latency is without a doubt decreased by using 35% for the 3rd-gen Ryzen processor when in comparison to Intel's Coffee Lake architecture. Problem is, worst case latency is 54% higher, and this isn’t excellent, specifically while gambling latency-touchy video games.

Wrap Up: Generational Upgrades

AMD has taken a large step forward with 3rd-gen Ryzen. We knew that from the instant we first tested the 3700X and 3900X and we had been awaiting proper things after AMD claimed a fifteen% uptick in IPC performance at Computex prior to launch.

Our take is that they weren’t exaggerating: with cores and clock speeds at parity the 3900X furnished an 18% improvement over the 2700X in Cinebench's multi-middle check and thirteen% for the single-center check. We additionally saw a 13% improvement in V-Ray and 16% in Corona.

You can’t certainly use video games for measuring IPC gains but they’re still thrilling to study for clock-for-clock comparisons. One apparent problem with games is they’re no longer constantly CPU sure and even when they're, the degree to which they're CPU sure can range. For instance, we saw minor performance profits in Rainbow Six Siege and Total War: Three Kingdoms, however in those two titles we had been heavily GPU sure. The 3900X become ~thirteen-14% faster than the 2700X whilst trying out with World of Tanks, World War Z and Battlefield V and an excellent extra sizeable 20% overall performance development in Far Cry New Dawn.

Eventually we may additionally check out including a Skylake-X processor in this form of testing, although we'd await third-gen Threadripper to arrive earlier than moving into that contrast.

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//www.techspot.com/article/1876-4ghz-ryzen-3rd-gen-vs-core-i9/
2019-07-15 12:01:00Z
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