So, Cinebench R20 has been released through the Microsoft and Apple stores Cinebench R20 Released - ONLY through Microsoft & Apple stores so let's get to posting a good set of scores. They (Maxon) said it takes 8x the power of Cinebench R15, so you can't compare scores backwards. Be warned, the single core test takes a -long- time. Also include your RAM speed as well.
Intel folks don't be afraid to chime in.
Results so far:
| Windows 10 Build | CPU | Speed | Cores/Threads | RAM Speed | CPU Score | Single Core Score | MP Ratio |
| PCWorld | Xeon W3175X | 3.1ghz | 28/56 | - | 13035 | 418 | 31.18 |
| PCWorld | Threadripper 2990WX | 3.0ghz | 32/64 | - | 11812 | 425 | 27.79 |
| 17763 | Threadripper 2950X | 3.5ghz | 16/32 | DDR4-3200 | 7776 | 446 | 17.45 |
| 17763 | Threadripper 1950X | 4.1ghz | 16/32 | - | 7775 | 416 | 18.7 |
| 17763 | Ryzen 2700X | 4.3ghz | 8/16 | - | 4422 | - | - |
| 17763 | Ryzen 7 2700X | 4.1ghz | 8/16 | DDR4-3200 | 4209 | 426 | 9.89 |
| 17763 | Ryzen 7 2700X | 3.7ghz | 8/16 | - | 4055 | 437 | 9.29 |
| 16299 | Ryzen 7 1800X | 3.98ghz | 8/16 | DDR4-3200 | 3792 | 401 | 9.46 |
| 17763 | Ryzen 7 1700X | 3.4ghz | 8/16 | - | 3469 | 361 | 9.61 |
| 17763 | Ryzen 7 2700 | 3.2ghz | 8/16 | - | 3448 | 411 | 8.39 |
| 17763 | Ryzen 5 2600X | 3.6ghz | 6/12 | DDR4-3200 | 3013 | 409 | 7.37 |
| 17763 | Ryzen 5 2600X | 3.6ghz | 6/12 | - | 2985 | - | - |
| 17763 | Ryzen 5 1600 | 3.2ghz | 6/12 | DDR4-2666 | 2570 | 354 | 7.26 |
| Unknown | FX-8350 | 4ghz | 4/8 | - | 1221 | - | - |
| 17763 | FX-8350 | 4.02ghz | 4/8 | - | 1174 | - | - |
| 17763 | Ryzen 5 2500U (Mobile) | 2ghz | 4/8 | - | 1084 | 285 | 3.81 |
Build 16299 - Windows 10 1709
Build 17763 - Windows 10 1809
My 1700X
My 2700
Multithread results only ATM with my 2600X
upgraded my 1700X to 3700X at stock auto settings
Bit bullet for the 3900X
Single core tested, alongside a slightly slower multithread score.
My HP-15DB0125AU Ryzen mobile 2500U
My 3200MHz RAM had decided to run at 2133 
Fixed and new tests run.... Not too shabby 
Here my score all stock speed Win10 build 17763.348
Using Hyper 212 EVO (dual fans) temp reached just over 50c, ambient ~20c
2600X with Wraith Max cooler. Everything is literally undervolted with ram at cl16 3066mhz and I think on the lower score the ram was at 2933 with the same ram timings and sub-timings. PBO is set to the stock 2700X values. Chassis fans are not maxed out but I do have an extra fan ziptied in the case blowing tward the ram and CPU socket and hopefully blowing some air to the backside of the MOBO.
Finally, find time to put all the stuff my wife offer me this Saturday Afternoon :
Ambient Temp° : 23°c // 73.4°F Hand Oc^^ [ Because it's only a 2700 not X ]
Stuff Offered :
Mobo : Asus X470 Prime // CPU : AMD R7 2700 // AIO : Cooler Master ML 360RGB // Case : Cooler Master H500M
My X58 Rig died just before my Birthday [ Mobo or Cpu ].... damn I loved this Rig so much...
So my little Lilith bought me parts lonely in secret... 
This is my 3241 score with a ryzen 2600x overclocked to 4.25ghz @ 1.47V
G.skills aegis 16gb 3000mhz to 2933mhz No voltage add-on
Ryzen 5 2600U - Acer Nitro 5 (+ 16GB DDR4-2400CL16 + RX560X 4G)
R15: M: 719cb(max - normal is ~650cb) S: 142cb
R20: 1590cb (max - normal is 1444cb) S: not tested took me to long
Ryzen 5 2600X (@1.34V @4.15GHz DDR4-3466CL14)
R15: M: 1490cb (4.2GHz) S: 180cb
R20: M: 3183cb (4.15GHz) S: 425cb
Ryzen 1800X 4025 Mhz
Windows 10, 64 Bit, Professional Edition (build 17763)
5 2600
Ryzen 5 2600
Ryzen 2700X stock settings. 32Gb RAM 3200MHz (CL14)
Acer Predator Helios 500 (PH517-61) upgraded with Ryzen 2700X (Arctic Silver 5 paste on CPU and GPU), 64GB RAM (Kingston HyperX DDR4 2666 C15 4x16GB).
Win 10 1809.
2700X set at 4GHz, 1.225V.
RAM set at VDDCR SOC 0.825V; Timing:12-16-14-14-12.
This system is rock steady, driving built-in native 144Hz display and three additional Samsung SyncMaster 971p monitors.
[Unigine Benchmark, "Extreme" settings score = 3592 with RX Vega 56 set at 718mV, GPU core at 1229 MHz, GPU mem at 890 MHz, max temp 49° C]
ETA:
Testing another Acer PH517-61 system I have, also with a 2700X ("Gold Edition"), stock settings, gave ~3750 Multicore on Cinebench R20.
This seems to indicate an almost direct correlation on the Acer PH517-61 with Ryzen 2700X of 1 Cinebench Multicore point per megahertz.
Im not the most savy at overclocking ...
My current rig
Ryzen 2600 3.85 GHz @ 1.275 V
Corsair RGB Pro 3000Hz @ 3200Hz 1.35 V Command rate T1
X470 Strix mobo
Been tinkering in bios ,going off youtube guides ;-P
R5 2600 @3.4 1.1875v - override, LLC5 on an MSI X470 Gaming Plus w 2x4GB 3000mhz at 1T 16-18-18-38
All core boost at full load is 3.8 with zero fluctuation, due to tuning voltage and LLC.
Note: My LLC5 is not the same as yours, unless it's the same motherboard.
Threadripper 1950x result:
3.85Ghz @ 1.25V
Memory 3200CL14 @ 3333CL14
Extreme settings used, i.e. very unstable.
Cinebench R20: 1558 (MC) | 399 (SC)
BCLK: 101MHz [≈100.94MHz]
CPU: Ryzen 3 PRO 1200 [OC 40.75x ≈4113.43MHz 1.36V]
RAM: G.Skill Ripjaws V 1x16GB 3200CL16 (F4-3200C16S-16GVK) [OC 34x ≈3433MHz CL16 Tightened]
R5 3600 @4.325GHz with 32GB 3133MHz trident Z (odd mem speed due to ram being oc'd from 2400mhz)
Shintel 9900k @5.1GHz
32 GB GSkill Trident Z @ 4000MHz
Razer Blade i7 9750H 16GB RAM @ 2666 c19
Looks like Zen 2 4.6 beats intel 5.1?!
Cant do multi at this speed so here is a seperate safe multi-speed
Unfortunately STOCK boosting doesnt work properly so I have to do it this way 
When it does, I should start getting that 532 in single without needing to manual OC.
