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3800x vs 9900k

Robert896r1 said:
5.3ghz benchmarks. A lot of the KS units should be able to do this or close.

CPU-Z and V RAY:

R20:
Click to expand...

5.3GHz all cores, most won't reach that or won't be able to cool it. 9900k/kf/ks its all about cooling, people can bench for awhile but the temps are too high. If you have 5.3GHz on a 9900k rejoice, as very very few people will also have that type of overclock. It's very rare. Most people will get 5.1GHz all cores on the 9900ks and a few will hit 5.2GHz but 5.3GHz will be very rare. People run AVX offsets to keep things cool.

Take the 9900k time spy cpu score, the average is 11k. https://www.3dmark.com/newsearch#advanced?test=spy P&cpuId=2402&gpuId=&gpuCount=0&deviceType=ALL&memoryChannels=0&country=&scoreType=physicsScore&hofMode=false&showInvalidResults=false

The 9900ks average is 11713 https://www.3dmark.com/newsearch#advanced?test=spy P&cpuId=2544&gpuId=&gpuCount=0&deviceType=ALL&memoryChannels=0&country=&scoreType=physicsScore&hofMode=false&showInvalidResults=false
The highest speed is 5,404 MHz. https://www.3dmark.com/spy/9118396 Most are topping out a 5,204 MHz in the top scores.

A 5.3GHz all core 9900k is so very rare and this is bench runs on 3d mark time spy not 24/7 overclocks.

In Cinebench R20 I get MT 5200 approx. on a good day. This is 3800x pbo and ram OC. That is enough to bet the 9900ks stock with a decent RAM kit.

There are lots of crazy 3800x scores, https://www.3dmark.com/spy/8538557
A true 12730 time spy score would produce a 3800x that would destroy all before it. Given the RAM is 16,384 MB Corsair DDR4 @ 2,998 MHz and the core is 4,349 MHz, there is lots of room for improvement. It's pointless stating that these outliers are indictive of the whole distribution. They are not.
 
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Timespy scales well with memory also not just cores. Example; I'm timespy bottlenecked because my mobo is really bad at frequency scaling on 2 dimms. It hits at wall at 3600mhz. So going from 5.2 to 5.3ghz is only worth a ~ hundred points.

Most of the people running 9900k's stock and with xmp ram will perform to the average. If I could get CL16/4133mhz which is standard for a high end z390 board, I'd be in the mid 13k range instead of low 13k. https://www.3dmark.com/3dm/40886806
 
Robert896r1 said:
Timespy scales well with memory also not just cores. Example; I'm timespy bottlenecked because my mobo is really bad at frequency scaling on 2 dimms. It hits at wall at 3600mhz. So going from 5.2 to 5.3ghz is only worth a ~ hundred points.

Most of the people running 9900k's stock and with xmp ram will perform to the average. If I could get CL16/4133mhz which is standard for a high end z390 board, I'd be in the mid 13k range instead of low 13k. https://www.3dmark.com/3dm/40886806
Click to expand...

Thats what I have found as well. The RAM speed and timings are worth more than the core clock speed. So I have focused on the RAM. You could find that if you lower the clock speed, then you "may" get better RAM overclocking. Could be that the RAM is Dual rank or in the wrong slots. Could be you are T-topology (Gigabyte?) and not daisy chained. Just sheer bad luck etc.

The clock speed increase is just a few points, even for the 3800x. Most people won't even tune the RAM, just install it and leave it at the kits settings. A stock 9900ks is 10700 cpu points in time spy. Add a 3600 RAM kit and you hit approx 11400. 5.3GHz and you hit 12k time spy cpu. You can tighten the timing after that.

Note the stock RAM for the 9900k is DDR4-2666 anything above that is overclocking. You are not bottlenecked by not getting above 3600 (1800MHz). You have simply reached the limit of the IMC/RAM overclock.

There is something wrong with many of the time spy scores. There is a 3800x that gets 12700 cpu points with crap RAM and underclocked cores, 3000 RAM not the stock 3200. AgentNardz then calls it "Stock". https://www.3dmark.com/spy/8538557

This is the top 9900ks https://www.3dmark.com/spy/9118396
CPU Score 13950 5,404 MHz Patriot Memory DDR4 @ 4,400 MHz

9900ks 13213 https://www.3dmark.com/spy/9132256
The 13200 you gave above. What would it take?
CPU Score 13213 5,303 MHz Kingston DDR4 @ 3,998 MHz

These are both in the top 100 9900ks cpu's. Almost everyone is not getting this level of performance in time spy cpu. Average is 11700.
 
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zx128k said:
9900ks 13213 https://www.3dmark.com/spy/9132256
The 13200 you gave above. What would it take?
CPU Score 13213 5,303 MHz Kingston DDR4 @ 3,998 MHz
Click to expand...

That's my score from this morning. 52core/47uncore and 15-15-15/3600mhz ram. My aorus pro is a 4 layer pcb with t-top so with 2 dimm's it hit a wall at 3600mhz. I have it tuned as tight as it'll get (b-die) with 255 trfc and manual tuning of all tertiary timings.
 
Robert896r1 said:
That's my score from this morning. 52core/47uncore and 15-15-15/3600mhz ram. My aorus pro is a 4 layer pcb with t-top so with 2 dimm's it hit a wall at 3600mhz. I have it tuned as tight as it'll get (b-die) with 255 trfc and manual tuning of all tertiary timings.
Click to expand...

Sounds like that is as far as you will go. The RAM timings are already tightened and you are likely already 1.45Volts+ on the RAM. With a motherboard that uses T-topology will normally overclock the best with 4 sticks. With two sticks I would have got a daisy chain motherboard. b-die as far as I know is single ranked.

Even if you cant overclock more, its still a sweet ride. 99th percentile and all.
 
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Robert896r1 said:
nm wrong info
Click to expand...

https://www.reddit.com/r/intel/comments/cfb12g/gigabyte_z390_aorus_pro_wifi_daisy_chain_or/eu8qnco/

yep its completely stable using patriot 4400 19 19 19 39. is there max frequency difference between 2,4 and 1,3 slots for ram?

https://www.amazon.co.uk/Viper-Steel-4400MHz-Performance-Memory/dp/B07KXLFDL6

On the motherboards memory QVL you should reach 3800-3866 at least. Just using the benchmark info you provided.

https://download.gigabyte.com/FileList/Memory/mb_memory_z390-aorus-pro-wifi_190415.pdf

Try changing the RAM slots, should not work but worth a try.
Seems to work well with patriot 4400 19 19 19 39. The QVL loves Samsung b-die.

"Besides the first two models, the range looks very promising and overclocking-friendly because, according to the manufacturer’s info, it’s supposed to be based on Samsung’s B-Die memory chips."
https://www.guru3d.com/articles-pages/patriot-viper-steel-4000-mhz-cl19-ddr4-review,1.html

Looks like Samsung B-die. What settings are you using when you increase the frequency? Auto and increased DRAM voltage should be the answer.
 
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Core i9 9900KS @ 5.1GHz HEVC Power Consumption 365W.
Core i9 9900KS @ 5.0GHz HEVC Power Consumption 355W
Core i9 9900KS @ 5.0GHz (MCE off) HEVC Power Consumption 254W
Core i9 9900K @ 4.7GHz HEVC Power Consumption 289W
Ryzen 9 3900X HEVC Power Consumption 228W
 
zx128k said:
9900ks 13213 https://www.3dmark.com/spy/9132256
The 13200 you gave above. What would it take?
CPU Score 13213 5,303 MHz Kingston DDR4 @ 3,998 MHz

These are both in the top 100 9900ks cpu's. Almost everyone is not getting this level of performance in time spy cpu. Average is 11700.
Click to expand...

Thought you'd be interested in ram tuning on intel. So I got an Apex board to replace my Pro board and tuned my bdie on it.

The lead to a 700 point jump: https://www.3dmark.com/3dm/42641336
CPU Score 13 920

Ram on Intel scales well. It just takes a lot more effort to get dialed in due to the complexity of it but it's quite fun. If I get a better bdie kit, 14000 - 14050 should be doable. Most people give up stick to xmp which is quite limiting esp on bdie.
 
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