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i7 8700K, 8600K, 7700K Overclock results

Finally DDR4-3000 @ 4133 passing 1000% HCI Memtest. Need a lot of tuning (timings and sub-timings , the right BIOS , active cooling on RAM and sometimes On-Die Termination).

The best I can do with P1.40 one error at 800%+.

HCI 800%.jpg


Here with the lastest L1.71E.
HCI 1000 auto ODT ram fan.jpg
 
Anyone running 7800X here?, I did a search nothing came up.
Curious about this over R5 2600X for future build.
The prospect of running quad channel memory makes logical sense the more cores & threads we go up in. Pity software development is still lagging at least with games I like.
TR4 platform attractive but 180w TDP by default a little too high for my liking.
 
7800X died before it had a chance to sell. The faster and more platform-affordable 8700K murdered it.
The only way a 7800X would be worth it is you are next to microcenter in the USA, where it sells for criminally cheap (280$)
 
7800X died before it had a chance to sell. The faster and more platform-affordable 8700K murdered it.
The only way a 7800X would be worth it is you are next to microcenter in the USA, where it sells for criminally cheap (280$)
7800X is 2066 platform - takes advantage of quad channel memory architecture, 8700K stuck with dual channel memory.
Imo, more cores & threads compared to quads need more channels of memory than dual channel systems.
We have had dual channel memory architecture since early 2000s.
 
7800X is 2066 platform - takes advantage of quad channel memory architecture, 8700K stuck with dual channel memory.
Imo, more cores & threads compared to quads need more channels of memory than dual channel systems.
We have had dual channel memory architecture since early 2000s.

With all this said - meh. The 8700K still stomps the 7800X in just about every application even with more channels that increase e-peen. 7800X has been exiled into the island of obscure CPUs next to its 4-core LGA2066 brothers. It can have 16 memory channels for all we care.
 
7800X is 2066 platform - takes advantage of quad channel memory architecture, 8700K stuck with dual channel memory.
Imo, more cores & threads compared to quads need more channels of memory than dual channel systems.
We have had dual channel memory architecture since early 2000s.
With all this said - meh. The 8700K still stomps the 7800X in just about every application even with more channels that increase e-peen. 7800X has been exiled into the island of obscure CPUs next to its 4-core LGA2066 brothers. It can have 16 memory channels for all we care.
No, he's right. More memory channels do equal better performance in workloads that require high memory bandwidth. This has been proven with benchmarking, both synthetic and real-world.
 
No, he's right. More memory channels do equal better performance in workloads that require high memory bandwidth. This has been proven with benchmarking, both synthetic and real-world.

Gaming benchmarks indicate more memory bandwidth benefits frames per second, although in saying that, depends on how game is coded. Trend is for devs to code for advanced hardware like multichannel memory systems & of course multicore/thread cpus imo.
 
If all I care about is gaming, do I even need avx or can I just raise the multiplier to 50x but leave avx at stock 43 ? I'd like to see that tested. Can't do it myself since I don't have a CL cpu, but it'd be interesting to see this:

run a CPU demanding game (I suggest watchdogs 2 or ac origins, they stress cpu like crazy), make sure you're using 1080p low/medium to rule out gpu bottleneck. Run what you normally run, like 50x with -1/2 avx offset, and then run 50x with -7 avx offset. See how they compare.
 
Gaming benchmarks indicate more memory bandwidth benefits frames per second, although in saying that, depends on how game is coded. Trend is for devs to code for advanced hardware like multichannel memory systems & of course multicore/thread cpus imo.

Yet again, with all that said, a dual-channel equipped 8700K will surpass a 7800X in most gaming tests effortlessly due to its ability to achieve higher frequencies. Even the thin and light 7700K did it. My behemoth 10 core part pales in many gaming benchmarks to the devilish 8700K, sometimes with the same operating frequency, btw.
 
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Yet again, with all that said, a dual-channel equipped 8700K will surpass a 7800X in most gaming tests effortlessly due to its ability to achieve higher frequencies. Even my behemoth 10 core part pales in many gaming benchmarks to the devilish 8700K, sometimes with the same operating frequency, btw.
In games, yes. In nearly everything else, not so much.
 
In games, yes. In nearly everything else, not so much.

Equal to better at media encoding
https://www.techpowerup.com/reviews/Intel/Core_i7_8700K/6.html
Equal to better at MySQL server work
https://www.techpowerup.com/reviews/Intel/Core_i7_8700K/8.html
Better at browser benchmarks
https://www.techpowerup.com/reviews/Intel/Core_i7_8700K/10.html

It has an iGPU that is basically free processing power for many many tasks as well. Its a nice-to-have bonus.

This thing traded blows and didn't lose horribly to the 8-core 7820X, dude. I'm sorry, but i'd take a 8700K over 7800X every day of the month, and use the extra money i save on motherboard budget to increase raw memory frequency.
 
Good reads for those interested in memory impact on gaming

https://www.purepc.pl/pamieci_ram/test_pamieci_ddr4_2133_3600_mhz_na_intel_core_i5_8600k?page=0,3
https://www.purepc.pl/pamieci_ram/h...cl15_test_pamieci_ddr4_quad_channel?page=0,13

3600 CL15 will often achieve as much as 10% improvement over 3000 CL15, which in many cases will bump the min. fps by ~10. Pretty good for high refresh gaming, especially if you don't have g-sync and aim at constant,fluid 120 fps.
Quad channel works like a charm in cpu intensive games, 2666 quad can match 3600 dual.
 
It definitely helps compensate over the generally lower CPU gaming performance, no doubt.
 
In games, yes. In nearly everything else, not so much.

Well... define "everything" else that goes well with a 10 core HEDT part and fails miserably on the 6 core mainstream part... There is a reason Intel is revamping its HEDT and frantically rebrands high core count parts. Its because HEDT is rapidly losing its USPs. The only real one it has is quad channel and if you managed to pick the right board and CPU, some storage and PCIE, at a tremendous premium.

The reality is, HEDT is a niche and with the increased core counts across the board and from competition, it has become largely obsolete even for much of the old niche. As much as quad channel can improve min fps for example, the advantage is lost or heavily diminished due to lower allcore clocks, a principle that goes for many other workloads as well. There really aren't that many workloads that saturate RAM to that degree, most of those are found in the server space, well beyond our reach and pockets.

If all I care about is gaming, do I even need avx or can I just raise the multiplier to 50x but leave avx at stock 43 ? I'd like to see that tested. Can't do it myself since I don't have a CL cpu, but it'd be interesting to see this:

run a CPU demanding game (I suggest watchdogs 2 or ac origins, they stress cpu like crazy), make sure you're using 1080p low/medium to rule out gpu bottleneck. Run what you normally run, like 50x with -1/2 avx offset, and then run 50x with -7 avx offset. See how they compare.

Your CPU will be running at 43x most of the time, end of story. The AVX offsets are broken really and anyone overclocking 'with' that, is just deluding themselves.

Yes, tried and tested in a wide variety of games such as Guild Wars 2 (DX9 and definitely no AVX), TW:Warhammer, Overwatch, etc etc etc

Comparisons aren't that interesting either, clocks tend to translate directly to higher FPS as long as there are no other (RAM, GPU, engine, net) bottlenecks in play. And with the games you suggest there are MANY such bottlenecks that aren't related to CPU clocks; as you showed very well with your AC:Origins purePC benches that scale heavily off RAM speeds ;)

Anyone running 7800X here?, I did a search nothing came up.
Curious about this over R5 2600X for future build.
The prospect of running quad channel memory makes logical sense the more cores & threads we go up in. Pity software development is still lagging at least with games I like.
TR4 platform attractive but 180w TDP by default a little too high for my liking.

Don't fool yourself with the idea that games are made for top end hardware. Games are made for the common denominator in hardware, which means right now the console level of hardware: 6-8 cores supported by relatively fast RAM is the optimal choice even in terms of 'future' proofing. Going higher in core counts provides zero benefit and I can tell you right now that going beyond 8 cores won't be feasible for gaming for a loooong time. The investment should go towards faster RAM and optimal core counts at the highest possible clocks.

And then there is optimization. If you choose to buy into a niche for a specific use case, which a TR/HEDT part for gaming very much is, you choose subpar optimization by default. Again: common denominators rule the game, because they represent the largest volume of sales.
 
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The AVX offsets are broken really and anyone overclocking 'with' that, is just deluding themselves.

I have been saying that the whole time and in different threads.
 
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