Falcor might be worth trying too as it's used in recent research by nvidia. In their presentations they talk about the importance of the caches so I expect 4090 would benefit a lot.
Nvidia GeForce RTX 4090 Reviews
- Thread starter DavidGraham
- Start date
Meteor Lake supposedly is the next true leap for Intel. Raptor Lake still is 10nm.
Hmm. Tried test Falcor, opened .pyscene file but it doesn't display anything but the default green background..
Those are some utterly insane speed ups for a CPU.
Tombraider going from 285 fps to 351 fps in gameplay performance and the internal CPU renderer going from 327 fps to 625 fps!!! How is this even possible??
+8 E-cores? Tomb raider renderer is well parallelized afair. Someone should do a comparison with E-cores disabled.
Techpowerup review shows the same speedups, 20 to 30fps improvements across games at the minimum using a 3080Ti.
Timestamped to benchmarks, this 13900k is just ridiculously capable, 40% faster in Blender. A mini-TR if you will indeed, the fastest consumer cpu in the world.
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Depends on a game and how well the OS is using the cores.
You can’t go wrong with either.
Foremost, unlike 12900K the 13900K got virtually unlimited TDP using a high-end board. Those 300+W surely make a difference in some cases.
Some games might like those additional threads provided by the E-cores spam.
Some might profit from the bigger L2.
Some games don't like the slow intercluster communication of Zen and 12k.
4090 power limit testing from Resetera:
"did a play a bit with the power limit in that scene
(4k, dlss quality, preset rt ultra)
100% 72fps 400w
90% 71fps 390w
85% 71fps 375w
80% 70fps 355w
75% 68fps 333w
70% 67fps 310w
60% 63fps 270w
50% 54fps 220w
80% seems like the best deal imo"
"did a play a bit with the power limit in that scene
(4k, dlss quality, preset rt ultra)
100% 72fps 400w
90% 71fps 390w
85% 71fps 375w
80% 70fps 355w
75% 68fps 333w
70% 67fps 310w
60% 63fps 270w
50% 54fps 220w
80% seems like the best deal imo"
Absolutely, trading 2fps for 50watts tdp seems very reasonable. Its akin to CPU's these days, pushed beyond the sweet spot for that couple of % increase. All that for that extra performance against the competition.
hurleybird
Newcomer
I'd say 70% here. That said, it is only one title.
Undervolting is definitely interesting with this architecture. Testing various setups with Speed Way
Stock - 94 fps - 413W
OC (+230 core +1400 mem) - 101 fps - 428W
OC (same as above, undervolt to 1000mv) - 99 fps - 398W
OC (undervolt to 950mv) - 97 fps - 353W
OC (undervolt to 950mv but memory at +0) - 92 fps - 338W
So by undervolting and overclocking core/memory you can end up with better perf than stock with 60W less. But running at the same clock but lower voltage gives slightly lower results, like other people have already seen.
Stock - 94 fps - 413W
OC (+230 core +1400 mem) - 101 fps - 428W
OC (same as above, undervolt to 1000mv) - 99 fps - 398W
OC (undervolt to 950mv) - 97 fps - 353W
OC (undervolt to 950mv but memory at +0) - 92 fps - 338W
So by undervolting and overclocking core/memory you can end up with better perf than stock with 60W less. But running at the same clock but lower voltage gives slightly lower results, like other people have already seen.
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70% is ideal, you just lose 5fps but you get a more palatable power consumption, specially on some PSUs. This could give a good idea about what to expect from a future 4080, or 4070.
Frenetic Pony
Veteran
Hmm, bandwidth concerns in some scenarios already then if memory needs an overclock. Starting to doubt those rumors of a "4090ti", or at least doubt they'd end up with any super appreciable performance increase. Of course AMD successfully delivered overclocked memory in the severely limited edition 6900LC. I suppose if Nvidia wanted it enough they could do their own 600 watt tdp liquid cooled FE only version.
Clearly the one thing that hasn't changed this gen is bandwidth... At least in Speed Way most of the gains in perf come from overclocking the memory. The cache probably helps mitigate the hit quite a bit.
I could see a 4090 Ti in 9-12 months with the full fat AD102 with higher binned/clocked memory, with 10-15% uplift from stock 4090.
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