Discussion Performance per litre - Round 4


Cable-Tie Ninja
Original poster
Dec 5, 2018
That PC is long gone so no unfortunately. I can submit a different entry
Ok, I have inserted your result into round 3 shown below.



Cable-Tie Ninja
Dec 23, 2016
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Efficiency Noob
Aug 17, 2021
I was gonna enter the Zotac Magnus One but.. there's no way lol

Case: Velka 5 Rev 2.0 177 x 99 x 285 mm = 4.99L ... vs ... 265.5 x 249 x 126 mm = 8.3L

And any Zen 3 is gonna clobber Intel on top of that!


Chief Procrastination Officer
SFFn Staff
Jun 29, 2015
I may need to bring up the bounding box issue in regards to the AC adapter, which has a cable strain relief notch on one side. Has a decision been made on whether or not this should be included in the dimensions, or should I post a photo so you can see what it looks like?

hmmm ... if you do, then you'll have to add wifi antennas to the bounding box or any "stiff" cable. AC cables have a quite big connector on the PSU side too ... it looks more like external brick hate to mee than real "scientific" issue.


Cable-Tie Ninja
Apr 21, 2019
Great competition! I'll join with my Ryzen 5 3500X (brand spanking used from ebay) and Zotac RTX 2070 Mini, MadMax-Frankenstein build 😀 Time to take you on, @guryhwa 🤣

Really glad with above - my build is a few points higher than someone else's with same CPU - means my open Frankenstein doesn't impact performance or temps

Case maker: myself, name: Lapdesk 😉

Bounding box volume (rounded to 2 decimal places):
  • 400.00 * 280.00 * 76.00mm 🤣 (including the sticking-out M4 screw on top): 8.512 litres
I could have replaced the legs with M4 posix screws and pretend it's a vertical build... but let's not take ourselves too seriously.
I'm not counting the hinges and the screen, though - a PC wouldn't have an integrated screen anyway... give me a chance here.

1st calculation: ((6797 * 8679) / (8.512^1.5)) / 100 = 23,754.152
2nd calculation: ((6797 * 206.12) / (8.512^1.5)) / 100 = 564.144

If I re-arranged hardware more efficiently I could get volume down by almost 2 litres, but wouldn't be useable as a laptop. Still huge looking at other examples here, made me realise how small your SSF builds really are!
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Cable-Tie Ninja
Apr 21, 2019
Do I get extra points for "personal heater" function? 😀 Temperature of the top plate, just above the GPU after Octane benchmark (GPU's backplate is touching the aluminium sheet) - 40 degrees Celsius:
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King of Cable Management
Jun 22, 2018
Never done this before, so please scrutinise and make sure I have this right:
  • Picture of actual PC build = 1.989 L

  • Picture of Cinebench R23 (30 mins) CPU benchmark result with CPU - Z

  • Picture of Octane benchmark with GPU - Z

  • Picture of Timespy benchmark result with GPU - Z
    • Time Spy on default preset and score is Graphics score, not total score.

  • Case maker, name and exterior dimensions (including feet) to be shown to corroborate volume

REVOCCASES RCC-TIPIO1 - (256 x 185 x 42mm) = 1.989 L​

  • Volumes calculated as bounding box
    • 1.989 + 0.188 = 2.177 (2.18 with rounding)
Brick - 101 x 69 x 27mm = 0.188L

  • Round 4 PPL calculations
    • ((CineBench R23 score * Time Spy graphics score)/(Build Volume^1.5))/100
  • ((6068 * 6063) / (3.2120) ) / 100 = 114,540
    • ((CineBench R23 score * Octanebench 4.0 graphics score)/(Build Volume^1.5))/100
  • (6068 * 257.18) / (3.2120) / 100 = 4858


SFF Guru
Nov 11, 2015

I know Round Four has stagnated a bit, just a handful or so of entries...?

Thinking towards cross-platform benchmarks, looking at Blender Benchmark...

Thinking a full run of all scenes, once for CPU & once for GPU; or maybe run all scenes on CPU twice (back-to-back, no cool down) calculate results of second run (after everything is "warmed up" from the first run), same for GPU; using the most recent version of Blender from the drop down menu...

Now I need to see if there is a way to load the CPU & GPU at the same time, maybe there is a way to run two instances of Blender Benchmark concurrently...?

As for a formula to calculate a "score"...?

Maybe Round Four can "reset" & switch over to some sort of cross-platform (Windows, Linux, macOS) benchmark, and if the CPU & GPU can be stressed at the same time, all the better; get some heat soak on a tightly packed SFF chassis...

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Steely-Eyed NVFlash Man
Dec 23, 2016
I look forward to seeing the final build pictures, and the actual timespy score. so you can submit it to the scoreboard. :)

I've been away from the forums and i didn't know there was a round 4, i thought Round 3 was it...?
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Steely-Eyed NVFlash Man
Dec 23, 2016
Note this is my Brickless S4M-C from 2017, updated it in 2020 to brickless for PPL3, and now resubmitting for PPL4 as a curiosity. Time to see it age and be destroyed by newer performance-per-liter submissions, they'll maybe even inspire me for my NEXT upcoming gaming build...!?

PC itself:




  • ((6098 * 7438)/(4.2^1.5))/100 = 52695
  • ((6098 * 158)/(4.2^1.5))/100 = 1119