this is the fastest gaming CPU on the planet
or at least it was when AMD first announced
it Intel beats him to the punch with what they claim is the fastest gaming
CPU the core i9 12900 ks
they put that together so quickly we didn't get a chance to review it before
they shoved it out the door what is it about this unassuming little
square the ryzen 7 5800 x 3d that's got
Intel so scared that they'd drop everything to come out ahead of it
i'll tell you but first i'm going to drop this message from our sponsor
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AMD's new gaming CPU achieves its
fastest ever gaming claims by using their shiny new 3d v cache technology
where ultra fast cache memory is stacked on top of the CPU die in addition to the
cache that's already inside it but why is cache so important for gaming
that AMD would go out of their way to literally make a cash sandwich
because it's so close to the CPU cores it is fast you can think of it roughly
like the relationship between RAM and storage and there are different levels
of cache that get even faster the closer they get to the course
3dv cache is l3 cache which for the
5800x3d is a shared pool of cache memory for all of its 8 cores
for games this cache is used for well everything but especially for
things like ai behavior trees physics information and other things that the
CPU is constantly doing if the cache fills up and this stuff has
to be evicted back to RAM the CPU not only has to wait for new data to arrive
from RAM but it also has to wait for the old data to come back when it's needed
again this is what you'd call a bottleneck and
this one will lower frame rates of CPU-bound games or cause hitching even
when FPS is high with three times the cache of its
namesake the ryzen 7 5800x the 5800x3d
promises to basically never run out of cash under normal circumstances which
should improve gaming performance to test that we've got a range of cpus
from both team red and team blue including the brand new 12900 ks
and we've equipped our Intel bench with the fastest memory we had available to
give it the best chance to rain on AMD's parade we'll have all this linked down
below right away 3d v cache makes itself known
in f1 2021 where it beats out the core i9 12900k and matches the brand new
12900 ks and this continues to a lesser extent with forza horizon 4 where the
5800x3d slips a little bit but nothing too major
far cry 6 brings the first maybe one percent low frame rates and averages
look good but five percent lows are significantly lower as they are with the
standard 5800x AMD is at a disadvantage
here hitman 3 shows more of this pattern albeit with better news for AMD in
general as average frame rates are higher than even the 12900 ks
at the cost of frame stability microsoft flight simulator brings the first
flawless victory over the entire field where it seems the extra cash really
helps with maintaining not only high but stable frame rates in this very
CPU-bound title cs go also famously CPU bound but with
an older and more simplistic engine tips the scales back towards Intel with the
1200 ks taking a commanding to almost 20 percent lead in average FPS
oh and you're not getting better turn times in civilization 6 fyi
but i don't think that's quite what they were talking about when they called it
the world's fastest gaming CPU you're also not getting better turn
times with our recently restocked when hoodies from ltdstore.com
but at least you'll look good while you wait tallying it all up the 5800x3d pulls
about a 7 lead over the 12 900k which would have made it the fastest
gaming CPU if only the 12900 ks didn't
exist a fact certainly not lost on Intel
the 12 900 ks is about three percent faster across our benchmarks but it's
worth remembering that that CPU costs 800
more on that later AMD hasn't really marketed the 5800x3d
for productivity and the slower clock speeds are probably going to hurt it
more here then the extra cash will help sure enough we see about a 5 performance
drop across the board in cinebench r23 over the og 5800 x
and blender doesn't fear much better in bmw
surprisingly 3db cache appears to help with the more complex gooseberry render
likely thanks to being able to keep more asset data close to the cores
creative cloud shows a similar performance uplift with premiere picking
up a good five percent lead over the 5800x
finally spec view perf shows a similar give and take depending on the test with
life sciences and general operations seeing a performance boost
and energy and financial services taking a hit
looking at all our tests it works out to roughly equal performance to the non 3d
5800x at the end of the day so you'd have to pay attention to the
specific benchmarks to know if it's better for a given workload
Intel meanwhile is firmly on top and it's it's not even close
even the core i7 12700k is way out ahead
that means that unless you're in the market for a top end CPU the 12700k
represents a better value for productivity overall than either of those ryzen 7 chips
for thermal testing i decided to give these chips a workout using prime95 to
see just how hot they'll get and the 5800x3d pleasantly surprises in this
torture test with a consistent 90 degrees using our Noctua nhd15s
that's just a few degrees more than the standard 5800x puts out and
significantly lower than either core i9 what's more it maintained 4.1 gigahertz
all core throughout most of the run with power consumption below the og 5800 x
even though both cpus are rated for 105 watt TDP
precision boost doesn't seem to be pushing the x3d quite as hard why the
hotter cores then well you've got the 3d v cache sitting between the cores and
the ihs so it's less thermally efficient which brings up the other reason the
ryzen 7 5800 x 3d is special
overclocking or rather lack thereof for the first
time on the ryzen platform AMD says that this is a limitation for
this one specific CPU because the 3d
stacked cache memory needs a hard capped maximum voltage for reliability not only
does that mean that overclocking one of these things would potentially be
dangerous it also means that thanks to the extra power draw required to run the
3db cache core clocks are lower than the vanilla 5800x as we saw
obviously that hasn't hurt it much in practice but you can imagine how much
faster things could be if only that limitation worked in place and they can
drive the clocks just that little bit faster
overall it's a weird chip but it's not a bad one
is it the most powerful gaming CPU in the world no it's beaten out by the core i9
12900ks but again that CPU is a power hungry
beast that costs 800. the ryzen 7 5800 x3d is 450
which makes it the fastest gaming CPU at a price that makes any sense
and that's why the core i7 12 700 k at 400 is in our test lineup
that chip still represents an extremely good value it's not far off for gaming
and dominates for the price if you need productivity plus it's running on a
brand new platform speaking of platforms get subscribed because we've got a brand
new storage platform with a petabyte of flash and we're totally gonna benchmark
it but the 5800x3d is a fitting send off to
a platform that's been around since i started writing for Linus tech tips by
all accounts this is probably the last CPU that am4 is going to see so
i wouldn't recommend it for new builds the platform's a dead end
but if you're primarily a gamer who got into AMD's ecosystem early and you've
been waiting for a chip to upgrade to then this is a solid choice for top tier
performance that won't require you to take a second job it doesn't need fancy cooling or a big
power supply or even new RAM could you get similar performance by
overclocking a plane ryzen 75800x or even the new 300 5700x probably yeah
but if you don't want to deal with that or if you're a small form factor
enthusiast then for you 5800x3d has few downsides
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video description thanks for watching guys go check out our most recent
sleeper where we had to go to some extreme lengths to make a
core i9 12900k work the 5800x3d here would have been a much
better fit literally