The brand new Intel Core i9-13900KS seems lots just like the 12900KS and 9900KS that got here earlier than it: it is a ‘particular version’ CPU that comes barely overclocked from the manufacturing facility, it is silicon in a can for positive, however for probably the most half that simply implies that it is a bit sooner and much more costly. How a lot sooner and the way way more costly, we’ll arrive in a second…
By now, you are in all probability conversant in the flagship Core i9-13900K, so getting in control with the KS will not take lengthy. The Thermal Velocity Improve frequency score has elevated from 5.8 GHz to six GHz, the P-Core base frequency has additionally elevated from 3 GHz to three.2 GHz, and this has elevated the bottom TDP from 125 watts to 150 watts, whereas peak turbo energy stays the identical at 253w. And now you’re updated.
That is a 7% improve in base clock and a 3.5% improve in most working frequency. Truly, we forgot a couple of minor element, the value. Intel is at present charging $600 for the usual 13900K, whereas the brand new KS model will price $699, that is 17% extra in worth for what may very well be round 5% extra efficiency.
Usually, we would have loads of app and gaming benchmarks for you, however as you are about to see, when it comes to efficiency, there’s little or no distinction between the Okay and KS fashions. So as a substitute of going by means of the identical kind of outcomes again and again, we sped up the method and lowered the variety of app benchmark assessments and omitted most particular person recreation outcomes for the 10-game common.
We examined the Core i9-13900KS utilizing the Arctic Liquid Freezer II 420mm AIO with the Thermal Grizzly CPU contact body and this improved all core clocks in comparison with be quiet. Pure Loop 2 FX 360mm AIO that we usually take a look at with out the Contact Body, and we’ll present you these ends in a bit. Our system was additionally geared up with a GeForce RTX 4090, Dwelling home windows 11 and resizable BAR was enabled for all configurations. Let’s get into it…
Earlier than we get into the blue bar charts, here is a have a look at how all cores behave in Cinebench R23. On common we noticed a pack energy of 280 watts peaking at 300 watts and this allowed for a median clock fee of 5480 MHz. For reference, the 13900K noticed the identical pack energy figures, however solely maintained a frequency of 5330 MHz , which makes the KS mannequin 3% sooner.
Curiously, after we ran the single-core Cinebench R23 take a look at, we noticed a typical working frequency of 5580 MHz with random, very transient spikes to 5985 MHz every now and then.
Now the largest downside with the 13900KS is shock shock…energy and thermals, identical downside with the 13900K and older 12900K. After just a few seconds, when working an all-core workload, the 13900KS reaches not less than 100c, at which level core throttling kicks in, scaling the pack energy again from 300 watts to 260 watts.
Utilizing silence! Pure Loop 2 FX 360mm AIO, the 13900KS ran at 5370 MHz on common, which is just 40 MHz increased than the 13900K as each are thermally throttled in our assessments. However as famous above, the Arctic 420mm AIO with the CPU’s contact body allowed the 13900KS to take care of a 5480MHz clock pace, that is after an hour of Cinebench R23 loop playback.
On condition that it is solely a 3% improve over the 13900K and most of the people within the 13900KS might be seeking to improve their cooling, we predict benchmarking towards the Arctic Liquid Freezer and Contact Physique makes probably the most sense, so let’s try this.
Factors of reference
Listed below are the Cinebench R23 scores, taken after a 10-minute loop. The 13900KS outperformed the genuine by simply 5%, scoring 40789 pts, making it 7% sooner than the 7950X.
We’re additionally seeing a 5% improve in single core efficiency over 13900K or a 6% improve when utilizing sooner DDR5-7200 reminiscence.
The good points in Adobe Photoshop are minimal. The 13900KS supplies a meager 3% efficiency enchancment, reaching a rating of 1665 pts in comparison with the 1612 pts offered by the genuine 13900K.
Blender Open Information outcomes are disappointing with a 1% improve in efficiency. Constructing the 13900KS with DDR5-7200 received that margin as much as 3%, so sooner reminiscence makes the largest distinction on this take a look at.
The one spectacular facet of the 13900KS thus far is energy consumption, and whereas this technology’s energy utilization for Core i9 elements is not nice, relative to the 13900K we’re getting a bit extra efficiency at no present price to the 13900K. vitality use.
Increased high quality clumped silicon can run at barely decrease voltages, ensuing within the figures we see right here. Nevertheless, in comparison with the 7950X, total system utilization is round 40% increased with the i9 half, which is absolutely unhealthy provided that the Ryzen 9 processor was 12% sooner on this take a look at.
So the thirteenth gen Core i9 collection is a productiveness catastrophe with regards to energy utilization and whereas it might cap energy, that caps efficiency, giving the 7950X a much bigger benefit. of efficiency.
It is time for some gaming benchmarks and there is no good option to break the information, so right here it’s: The 13900KS is 1.3% sooner than Hitman 3’s 13900K, at 1080p on an RTX 4090.
That being stated, you’ll be able to obtain a “greater” 4% improve for those who use DDR5-7200 reminiscence, whereas leaving the 13900K with DDR5-6400, utilizing 7200 for each CPUs is prone to get a return within the margin of 1 %.
We’re a 1.5% efficiency enhance on Horizon Zero Dawn for the 13900KS, whereas utilizing DDR5-7200 reminiscence elevated efficiency by an extra 2%, hitting 218 fps.
Uninspiring good points in Cyberpunk 2077 the place the 13900KS provided a 1% efficiency achieve, going from 217 to 219 fps, really feel the distinction. This made the DDR5-7200 good points look fairly spectacular, coming in at 228 fps, which is a 4% improve, so in comparison with 2 fps, that is fairly good.
The Riftbreaker is a benchmark the place Intel does very effectively, the 13900K for instance being 2% sooner than the 7700X, although right here the 13900KS solely presents an extra share, ie 2 fps extra. It will appear the largest benefit right here is the sooner DDR5-7200 reminiscence, because the added bandwidth offered a fairly spectacular 11% efficiency enhance, hitting 229 fps.
FPS loopy CSGO players can take pleasure in a 20fps enhance at 1080p with the RTX 4090, that is a 4% delta, however for the 19300KS it is a terrific outcome and for those who go for DDR5-7200 reminiscence you’ll be able to bump it as much as 544 fps.
Earlier than we check out common gaming efficiency, here is a brand new addition to our CPU benchmarks with A Plague Story: Requiem. Right here the 13900K was good for 120fps on common, making it simply 3% slower than the 7700X. Nevertheless, the 13900KS was in a position to match the 7700X after which, armed with DDR5-7200 reminiscence, we extracted an extra 3% efficiency.
Common of 11 video games
Trying on the 11-game common, and as discovered above, the Ryzen 7700X and Core i9-13900K are neck-and-neck. So the ~2% improve for the 13900KS meant it was 2% sooner than the 7700X. All that stack and energy for a 2% improve on common. Then with DDR5-7200 which the 7700X cannot use, the 13900KS was 5% sooner.
Then for these of you , here is the 1440p information, below these barely extra GPU-limited take a look at situations the 13900KS was 2% sooner than the 13900K, so it would not make sense.
what we realized
We weren’t impressed with the 13900K after we reviewed it just a few months in the past, so unsurprisingly we’re not as impressed with the KS variant. Principally, it takes all of the dummy attributes of the genuine and doubles them, which mainly ends in additional efficiency at a premium worth.
What you are paying for is clustered silicon so after all these particular version processors are meant for excessive overclockers and we’re guessing fanatic overclockers in frequent so for those who see the worth in paying a 17% premium for that I assume which is ok, however for everybody else, it simply would not make sense, and we predict the identical could be stated for the common 13900K.
Typically talking, the Ryzen 9 7950X is barely cheaper, however these financial savings are eaten up by motherboard prices. Nevertheless, the Ryzen chip presents superior productiveness and customarily presents increased efficiency with considerably decrease energy consumption. Reminiscence price is irrelevant as it will not and shouldn’t be paired with DDR4 reminiscence.
The 7950X could prefer to run at 95°C, but it surely would not throttle and is straightforward to maintain at that temperature with a fundamental cooler, whereas the 13900K needs to go above 100°C with a 360mm all-in-one and Subsequently, it tends to hurry up. The Core i9 half additionally dumps considerably extra warmth in your case, and if that appears trivial to you, belief me it isn’t, I play with a 12900KS and it is an actual ache, and as such I am going to take away it. later this yr.
For gaming although, we desire one thing just like the Ryzen 7 7700X or the extra environment friendly 7700 model (you can even go low voltage or use Eco Mode with the 7700X), these are considerably extra energy environment friendly elements that give efficiency associated to the from 13900K for lower than $400. Then once more, in case your principal concern is gaming, you are in all probability higher off ready till the Zen 4 3D V-Cache elements arrive subsequent month and take a look at what they’ve to supply.
The Core i9-13900KS is a crap processor, and at $699 most builders ought to ignore it. On the proper worth this may very well be a terrific product, you’d simply restrict the ability for saner working temperatures, but when you are going to try this, the 13900K makes probably the most sense. Excessive overclockers apart, it is a powerful go.