The estimates based on 4m official figures...

PS4 ~2m
Xbone ~700k
PC ~1.3m

So looks ok for the first week... same ratio... 4 million is 2 weeks figures with digital.

New week! The Witcher is teh king, but Farming Simulator is teh emperor!!!   Those Swiss yokels devs are unstoppable!!! 

Yeah this makes sense to me.  

No that would mean a second week almost as big as the first week for XB1 version which looks unlikely. I think your split is wrong and VGC seems to have more favourable PS4 ratio than reality.

The split is right (or most close to) and include digital... there is evidence from CD Projekt RED that PS4 version did close to 2m and PC is confirmed 1.3m.

BTW that is the NPD ratio.

PS4: 420k
Xbone: 275k

It is the most strong Xbone territory... UK was 63% for PS4 and 32% for Xbone.

You maybe right then. Its strange as Microsoft had the marketing rights and an XB1 bundle with the game.

Even with MS marketing, TW is a series that's very strong in Europe, where PS4 install base has a huge lead, this made the difference. No surprise about PC  numbers, TW was born on PC in Europe and PC is strong in Europe, so regional preferences both for HW and SW deliver a perfect synergy to that version.

Final week. 24 May.

Pos	Game	Weekly	Total	Week #
1	The Witcher 3: Wild Hunt (PS4) Warner Bros. Interactive Entertainment, Role-Playing	1,138,099	1,138,099	1
2	The Witcher 3: Wild Hunt (XOne) Warner Bros. Interactive Entertainment, Role-Playing	390,037	390,037	1
3	The Witcher 3: Wild Hunt (PC) Warner Bros. Interactive Entertainment, Role-Playing	210,252	210,252	1
4	Grand Theft Auto V (PS4) Take-Two Interactive, Action	55,758	7,000,054	27
5	Farming Simulator 2015 (PS4) Unknown, Simulation	54,051	54,051	1
6	Mortal Kombat X (PS4) Warner Bros. Interactive Entertainment, Fighting	46,947	1,291,175	6
7	Farming Simulator 2015 (PS3) Unknown, Simulation	46,320	46,320	1
8	Project CARS (PS4) Slightly Mad Studios, Racing	43,809	294,223	3
9	Final Fantasy X-X2 HD (PS4) Square Enix, Action	40,960	165,475	2
10	Pokemon Omega Ruby and Alpha Sapphire (3DS) Nintendo, Role-Playing	31,726	8,374,248	27
11	Halo: The Master Chief Collection (XOne) Microsoft Game Studios, Shooter	28,579	2,263,252	28
12	Grand Theft Auto V (XOne) Take-Two Interactive, Action	27,399	2,921,725	27
13	Mortal Kombat X (XOne) Warner Bros. Interactive Entertainment, Fighting	26,877	805,460	6
14	Minecraft: Xbox 360 Edition (X360) Microsoft Game Studios, Adventure	26,518	7,440,044	103
15	Minecraft: PlayStation 3 Edition (PS3) Sony Computer Entertainment, Adventure	25,902	3,773,496	54
16	Bloodborne (PS4) Sony Computer Entertainment, Action	25,399	1,275,667	9
17	Wolfenstein: The Old Blood (PS4) Bethesda Softworks, Action	25,313	63,639	2
18	NASCAR '15 (X360) Deep Silver, Action	24,546	24,546	1
19	FIFA 15 (PS4) Electronic Arts, Sports	21,782	6,097,045	35
20	Battlefield: Hardline (PS4) Electronic Arts, Shooter	21,474	1,495,003	10
21	Assassin's Creed: Unity (XOne) Ubisoft, Action	21,470	2,878,095	28
22	Mario Kart 8 (WiiU) Nintendo, Racing	20,590	4,613,507	52
23	Super Smash Bros. for Nintendo 3DS (3DS) Nintendo, Fighting	19,401	6,136,119	37
24	The Last of Us Remastered (PS4) Sony Computer Entertainment America, Adventure	19,367	3,064,220	43
25	Grand Theft Auto V (PS3) Take-Two Interactive, Action	19,088	19,660,421	88
26	Call of Duty: Advanced Warfare (PS4) Activision, Shooter	18,501	6,675,815	29
27	Destiny (PS4) Activision, Action	18,455	4,822,053	37
28	FIFA 15 (PS3) Electronic Arts, Sports	17,926	4,354,822	35
29	Minecraft: PlayStation Vita Edition (PSV) Sony Computer Entertainment America, Adventure	17,831	780,418	28
30	Mario Party 10 (WiiU) Nintendo, Misc	17,043	753,691	11

Holy shit. FIFA crossed 6 million on PS4... GTA5 passed 7 Million!