Best CPU / Rig build for G2

[Charlo-VRde]

Thank you, @Chiliwili69, and I agree it is a bit strange, as I had read that Intel RAM overclocking guide, too, and I am only interested in simply using built-in XMP profiles. 

When I add to my i7 10700 build any RAM that runs at 1.5v, pcpartpicker displays this note: “Note:The G.Skill Trident Z RGB 32 GB (4 x 8 GB) DDR4-4000 CL15 Memory operating voltage of 1.5 V exceeds the Intel Comet Lake CPU recommended maximum of 1.35 V+5% (1.417 V). This memory module may run at a reduced clock rate to meet the 1.35 V voltage recommendation, or may require running at a voltage greater than the Intel recommended maximum.”

[dburne]

2 hours ago, Charlo-VR said:

Thank you, @Chiliwili69, and I agree it is a bit strange, as I had read that Intel RAM overclocking guide, too, and I am only interested in simply using built-in XMP profiles. 

When I add to my i7 10700 build any RAM that runs at 1.5v, pcpartpicker displays this note: “Note:The G.Skill Trident Z RGB 32 GB (4 x 8 GB) DDR4-4000 CL15 Memory operating voltage of 1.5 V exceeds the Intel Comet Lake CPU recommended maximum of 1.35 V+5% (1.417 V). This memory module may run at a reduced clock rate to meet the 1.35 V voltage recommendation, or may require running at a voltage greater than the Intel recommended maximum.”

 

With ram like that around 4000 MHz you are basically just overclocking the heck out of it.

As with any overclocking, ymmv.

 

[Charlo-VRde]

Earlier in this topic @chiliwili69states, "Initially I thought that the important number to correlate was going to be the first word latency (it is 2000*CL/Freq). The lower the better. But Greif saw that frequency was correlating better than first word latency."

 

Since speedier RAM at 4000MHz but also at 1.35v requires a higher CL and first word latency, I'll probably get the G.Skill Trident Z Royal 32 GB (4 x 8 GB) DDR4-4000 CL17 at https://pcpartpicker.com/product/gXKcCJ/gskill-trident-z-royal-32-gb-4-x-8-gb-ddr4-4000-memory-f4-4000c17q-32gtrs

 

Thank you @dburneand @chiliwili69 , two of the folk who I most trust when it comes to recommendations, for noticing my posts

[Alonzo]

On 9/6/2020 at 10:51 AM, Charlo-VR said:

When I look at 32GB RAM at 4000MHz I see most run at 1.5v, but according to pcpartpicker Intel warns against running RAM higher than at 1.35v.

 

11 hours ago, chiliwili69 said:

There are standard Intel XMP profiles which uses voltages higher than 1.35volts, look this table.

 

If the manufacturer has an XMP specification for a particular memory kit and it says 1.5v, then that's fine for that particular kit (as long as your motherboard can do it). The 1.35v thing is simply a caution for people playing with voltages themselves and potentially damaging their chips.

 

To get to 4000 and above you're quite likely to need more than 1.35v, and if it's in the XMP, it's ok.

 

Edit: And technically, XMP itself is an "overclocking" setting - it's more than JEDEC standards which cap out at like 2400 or something. But it's manufacturer approved overclocking. It's still always worth looking at your motherboard's RAM compatibility list, they test stuff and can give a thumbs up that it'll work (they don't test everything though, so if a RAM kit is not on the approved list, it might still work).

Edited September 7, 2020 by Alonzo

[Charlo-VRde]

Ah, thanks, @Alonzo, another person in these forums whose posts I look for on these types of things!

 

I rather suspected it is the case that Intel's 1.35v RAM limitation falls more in the realm of overcautious.  That puts back in play the G.Skill Trident Z RGB 32 GB (4 x 8 GB) DDR4-4000 CL15 at https://pcpartpicker.com/product/VFxbt6/gskill-trident-z-rgb-32-gb-4-x-8-gb-ddr4-4000-memory-f4-4000c15q-32gtzr that I prefer (and which is also listed on the MSI QVL for the MEG Z490 Unify board I have in mind).

[Remontti]

On 8/27/2020 at 2:29 PM, chiliwili69 said:

 

This could be also a weak point in your PC. You have the current top GPU but in memory you are not at that level.

See what frequencies support your MoBo. If they support 3200 or more it could be worth to upgrade to gain some performance. The higher the better.

I installed fpsVR for steam. Mostly the frametimes for GPU were slightly higher than the CPU ones. And there were a lot of short red spikes for both frametimes.

 

Today I received my new DDR4 3200 (Highest that my MoBo support, it's bit old I know). I installed them and flashed Bios also to newest version.

 

I did some quick testing with 8 Mustangs vs 8 109s in Bodenplatte summer map (Ultra preset, High shadows, 2xFXAA).

Now the frametimes for GPU were constantly lower than the CPU ones and the red spikes were gone. I think there is major improvement here.

Thanks for the advice?  

[I.JG3_CDRSEABEE]

2 hours ago, Remontti said:

I installed fpsVR for steam. Mostly the frametimes for GPU were slightly higher than the CPU ones. And there were a lot of short red spikes for both frametimes.

 

Today I received my new DDR4 3200 (Highest that my MoBo support, it's bit old I know). I installed them and flashed Bios also to newest version.

 

I did some quick testing with 8 Mustangs vs 8 109s in Bodenplatte summer map (Ultra preset, High shadows, 2xFXAA).

Now the frametimes for GPU were constantly lower than the CPU ones and the red spikes were gone. I think there is major improvement here.

Thanks for the advice?  

What FPS are you getting running the G1?

[Remontti]

10 hours ago, CDRSEABEE said:

What FPS are you getting running the G1?

60 as I use 60Hz mode. 

 

In the 90Hz mode I get 90fps when there is nothing or little happening around me. In a dogfight with multiple planes the fps drops to 80-85. 

It can drop to 70 or lower when there is also lot going on on the ground like in scripted missions.

 

Bit hard to give you good answer as it depends so much on the situation. I can play a track with my setup if you want. 

[chiliwili69]

13 hours ago, Remontti said:

Now the frametimes for GPU were constantly lower than the CPU ones and the red spikes were gone. I think there is major improvement here.

Thanks for the advice?

 

Very interesting. Thanks for sharing your upgrade results.

So a slower RAM speed (or bottleneck in RAM) is seen as a higher GPU frametimes with spikes. Who could image that!

[I.JG3_CDRSEABEE]

5 hours ago, Remontti said:

60 as I use 60Hz mode. 

 

In the 90Hz mode I get 90fps when there is nothing or little happening around me. In a dogfight with multiple planes the fps drops to 80-85. 

It can drop to 70 or lower when there is also lot going on on the ground like in scripted missions.

 

Bit hard to give you good answer as it depends so much on the situation. I can play a track with my setup if you want. 

No need. Im thinking the 3080 will be fine. If I can snag one.

 

Thanks

[Gomoto]

Best CPU?

5900X!