Mahatma Gandhi

@Groove_C Yes, It seems like it. And this was with every background programm closed. For sure I haven't seen any stutter since I have this system but while benching with 4 cores, I have seen noticeable stutter which are in the results above. Not sure Ryzen 3k can be any smoother to be honest. But yeah, I am also looking forward to a YAAB Bench with one of those. My next thing is the GPU, as I don't play yaab all day and in real world, I am entirely GPU bound now. Or I just stay with what I have and enjoy ArmA

Alright, I did use the Altis Benchmark and benched 3 times each 6C/12T, 6C/6T, 4C/8T and 4C/4T. The result by Fraps for the first 60 seconds is basically identical. Even between Full 6C/12T or 4C/4T However, if you look at the frame run, 2/3 runs with 4C/4T or 4C/8T have huge spikes. Here a representative one: Heres another one: 6C/12T are all smooth So it seems that you need more than 8 Threads to avoid stutter entirely, but this might be a wrong conclusion as threads from ArmA3 might jump CCX more frequently and this might be the cause. But you can also see the 1% low Frametimes go up from 4C/8T to 6C/12T

@Valken I am very happy with the system and I can absolutely recommend this platform for ArmA3/in general. The price/performance tag is pretty outstanding. But yes, RAM is a very contributing factor at least on the AMD Plattform. So if one is thinking about upgrading to the Ryzen platform, don't be cheap on the RAM. One saves a lot on the CPU already. Although expensive, 3200MHz CL14 modules make the cut over 3000-3200MHz CL16 which you cannot clock or further optimize timings. But I am also surprised, because your RAM is pretty competitive, too. With 2400MHz CL10 you have identical latencies to my 3600MHz CL15. I can do some core count scaling over the next week if thats of interest. My feeling is, it matters most for the frame times, in particular if other software runs in the background (e.g. Skype and Relive or my Dropbox sync). The average FPS result is likely stable down to 8 threads, as long as nothing else runs in the background.

Regarding the particularly smooth frame delivery on Ryzen. I can try doing this, but my concern is that YAAB is not reproducible enough for frame time measurements. Any suggestions for a handy tool to measure frame times? The L3 is fully available to all cores, however it is split in two blocks (2x8mb). Each block of 4 Cores (AMD calls that a CCX) have local fast access to 8mbL3 and somewhat slower access to the 8mb of the other CCX. If I disable cores, I can do that in pairs only (8, 6, 4, 2) because they get disabled symmetrically (at least this is true for my Board). That however means that distant access might become more frequent and bias the result. Not sure that is a trivial question to solve this way. But sure, if there is a handy tool to measure frame times, I can give it a shot.

@Groove_C @oldbear I have just switched the system to a 2600x which allowed me to clock my RAMs to 3600MHz. The upgrade made a huge difference. I got another + 20% The YAAB result with the CPU at stock and the RAM @ 3600MHz in 1080p and Standard preset is: Rest of the System is still identical: Now Ryzen 5 2600x (stock) (before Ryzen 7 1700 @3.8GHz) Radeon RX 470 4gb Asrock X370 mITX G.Skill FlareX 3200MHz CL14 (now overclocked to 3600MHz CL15) Samsung SSD Enermax Triathlor 300W

@Valken I have no data for threadripper but e.g. the x299 Plattform (also QuadChannel) does not scale well. The ArmA3 performance is more latency dependent than throughput. That beeing said, ArmA3 of course runs well on X299 or TR4 Plattforms as well. @oldbear We recently tested that on a 2700x from a friend: Ryzen 2700x ASUS Prime X470-Pro 2x8gb DDR4 @3466MHz Standard Preset - Standard View Distance 57.4 FPS https://ibb.co/eXnLkU This is absolutely as is, no startup parameters like e xtra threads etc.

You can easily get another 10%-15% if you tune your RAM Timings. See --> https://www.overclock.net/forum/13-amd-general/1640919-ryzen-dram-calculator-1-1-0-beta-2-overclocking-dram-am4.html 50 FPS, I get with an old Ryzen 1700 @ 3.8GHz with these timings (Same RAM as you have @ 1.4V vRAM; Radeon RX470 4 GB): Let me know if you have questions regarding this...

Ryzen 2700x @4.2GHz ASUS Prime X470-Pro 2x8gb DDR4 @3466MHz Aorus 1080ti Standard Preset - Standard View Distance 57.4 FPS https://ibb.co/eXnLkU

Let me know, I can probably help tuning. I have quite some experience with RAM tuning on my Ryzen build. Here's some helpful list of settings and results: https://docs.google.com/spreadsheets/d/1HKPVfDcFO-aieAOXHFQZp15rwWadbPTVDNgO8vtyDCM/edit#gid=0

@djotacon Nice! Did you work on the subtimings of the RAM also?

I fully agree! Would buy that processor any time again. Manamana!

This has been reported several times, but I haven't seen a video documenting it so far. Also shows how pointless average framerates are as an indicator of how smooth the game runs.

Here is a neat comparison of a 8600k @5.2GHz vs a 2700x @4.3GHz where you can see the often mentioned smooth framerate you get from those Ryzen boxes in ArmA3. Almost no stuttering at all.

Noteably, that was with the following startup parameters: P.S.: This is main branch (not dev branch). I really do not feel any need for performance improvements with this rig. Its perfectly smooth and fast with long view distances and Ultra Details.

For very good reasons! I have to say, I am more than happy with what my 1700 Ryzen build in a Node 304 ITX Box comes up with in ArmA3. At least, I cannot blame it on the low FPS anymore that I remain the bullet magnet. It seems more of an age problem meanwhile.

@verstand3nThis video most and undeniably shows how bad of an indicator average Framerate is over Frametimes. While we do not know anything about the components used to make that video but the used CPU, we can see, without any room for interpretation, how horribly stuttering it runs on the 3570 on the left over the 1700 Ryzen despite having a higher framerate. Just check the szene flying from the water over the island @ 3:27 following a minute. Its simply unplayable on the 3570 but perfectly smooth on the 1700. Its remarkble!

Thanks for clarifying @oldbear. Well, if it helps somebody. Here are the results and settings after autodetect + 'S' key (two runs). Note that I have disabled FSAA for the second run, as this surely only impacts GPU performance. Everything else is as normal. Radeon RX470 @ stock and Ryzen 1700 @ 3800MHz; RAM@ 3200MHz with tuned timings as before.

This is on a Radeon RX470. Here are the results for Low and Standard Preset 1920x1080 at different RAM Settings... Its very RAM sensitive.

Briefly, ... to better understand... you want me to use 'autodetect' which leads to custom, basically all settings ultra, incl. 8x FSAA and then post average FPS so we can conclude from that on CPU performance? What's the rationale? Could you briefly elaborate on that? I used two reproducible settings that are most likely not GPU bottlenecked and tested them in three different conditions. What is missing here? Anyway, a brief run says 47.7 with autodetect + s but I consider that pretty meaningless as we are now substantially benchmarking the GPU. I am off for a conference now for a week...

Sorry for the misunderstanding... I did not intend to suggest that a 1700 Ryzen is the best option for the single purpose of playing ArmA3. I am apparently the only person here that does use the System for other things as well. Accept my appologies! And we'll continue that part there....

@oldbear I intended not to compare our Graphics backend so I set the Video Presets to "Low". I do not see why that should be making CPU-CPU comparisons difficult as long as you and me do the same. However, I can report that a YAAB run under "Standard" preset plus pressing "S" for standard settings results in 51.5 FPS in YAAB on my 1700 @ 3.8GHz + 470 4gb. Here are all results including RAM scaling on my sys. Low means 'Low Preset' Standard means 'Standard Preset + Standard Settings' Hope this is comprehensive enough.

Size of the RAM does not matter... Memory latencies matter more than anything else. See below: Even with a 5 GHz i7 7700k you only reach ~47 FPS in YAAB when your RAM is slow while you can reach more than 60 FPS with a 3.8GHz Ryzen when the RAM is fast (3200MHZ CL14-14-14-26-42 in this case). If you have good RAM settings, you have good ArmA3 performance. Your drop in Performance while recording is probably for the same reason, you're spending Memory performance on this, you have memory accesses giving latencies a hit and you only have 4 cores anyway.

I guess that might be true if you're doing nothing but ArmA3 with that System. Yet, I think that >60 FPS in YAAB is very good or can someone here deliver more with an 8 Core 16 Threads system? And yes, I am not only playing ArmA3 with that System.

Sorry, I do not. I think the 1700 is a very good offer. Whats your build, what did you pay, whats your yaab score and do you only play ARMA3 or also others.

Compared to?