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Seasonic Platinum-1000 1000 W


Staff member
Mar 3, 2011
763 (0.23/day)
Seasonic entered the Platinum party late since they wanted to make a big and well planned entrance. After many rumors, spy photos and lots of unconfirmed data Seasonic's Platinum series is finally released and is ready to fight for the crown. The stronger of the two fresh units, the Platinum-1000W, will be the test subject of today's review.

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Last edited by a moderator:
Oct 19, 2008
3,063 (0.74/day)
System Name ROG
Processor i5 9600K
Motherboard ASUS STRIX Z390-E
Cooling Corsair H100i platinum
Memory G.Skill Trident 3000mhz RGB
Video Card(s) Gigabyte 1080ti 11GB OC
Storage Samsung M.2 256GB + 1TB SSD +Seagate 2TB 7200RPM
Display(s) DELL S2716DG 2560x1440 144hz G-Sync
Case InWin 805C Red
Audio Device(s) Creative Sound Blaster X AE-5
Power Supply EVGA 850W Gold
Software Win 10
To be honest I expected this unit to get a 10/10 :D and I am sure it will to those that don't mind the price. I am very impressed with their gold x-series 750watt and it was by far the best power supply I've used so I don't expect any less from their new 1000W. This will definitely be in the list on my next upgrade :).
Jun 26, 2007
1,880 (0.41/day)
System Name Unreal Machine III
Processor Intel Core i3 2120 3.4Ghz
Motherboard Sabertooth P67
Cooling Zalman CNPS 9500 LED
Memory Gskill 8GB 1866Mhz Ripjaw CL9
Video Card(s) 5600XT Red Devil
Storage Evo 960 500GB + Kingston SSD 240GB + WD RED 4TB + WD 640GB Black eddition + 500GB Barracuda 7200.12
Display(s) DELL U2417H
Case Termalthake xaser III black
Audio Device(s) Xfi Fatal1ty + Creative inpire t7900 7.1 + Sony MDR-1A + AKG 240
Power Supply ZALMAN ZM 850HP
Mouse Logitech G402
Keyboard Logitech
Software 10 pro
Benchmark Scores It still works, and plays shit...
I feel compelled to replace my great zalman unit by a brand new 860w seasonic platinum, since i had an S12 that lasted years until i passed her on to someone else, I loved it (it saved my pc from a meltdown with the worst ever made psu...)...
Apr 4, 2008
4,682 (1.08/day)
System Name Obelisc
Processor i7 3770k @ 4.8 GHz
Motherboard Asus P8Z77-V
Cooling H110
Memory 16GB(4x4) @ 2400 MHz 9-11-11-31
Video Card(s) GTX 780 Ti
Storage 850 EVO 1TB, 2x 5TB Toshiba
Case T81
Audio Device(s) X-Fi Titanium HD
Power Supply EVGA 850 T2 80+ TITANIUM
Software Win10 64bit
Compared to what top gold units have run the price is pretty good. I guess I was right to trust seasonic. I've been recommending this unit before there were reviews. It's fully modular unlike the superflower 1000w platinum and it's def. not a waste of time like the enermax offerings.


New Member
Jan 12, 2011
108 (0.03/day)
Central Europe
Processor HDT90ZFBGRBOX (uv, oc)
Motherboard 90-MXGIP0-A0UAYZ
Cooling VENOMOUS-X + TR-FDB-12-600 + PLPS
Memory F3-12800CL9D-8GBSR2
Video Card(s) 21188-00-40R + DCACO-V3400-BLA01 (uv, unlock)
Storage WD10EALS-00Z8A0 + 4044951000029
Display(s) VM633AT
Case FT02B-W
Audio Device(s) SB0090, ALC892
Power Supply BN162
More Platimun in the region of 350 W - 600 W please... However that would only save a few Watt, but every little counts :)
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Oct 6, 2005
10,242 (1.95/day)
Granite Bay, CA
System Name Big Devil
Processor Intel Core i5-2500K
Motherboard ECS P67H2-A2
Cooling XSPC Rasa | Black Ice GT Stealth 240 | XSPC X2O 750 | 2x ACF12PWM | PrimoChill White 7/16"
Memory 2x4GB Corsair Vengeance LP Arctic White 1600MHz CL9
Video Card(s) EVGA GTX 780 ACX SC
Storage Intel 520 Series 180GB + WD 1TB Blue
Display(s) HP ZR30W 30" 2650x1600 IPS
Case Corsair 600T SE
Audio Device(s) Xonar Essence STX | Sennheisser PC350 "Hero" Modded | Corsair SP2500
Power Supply ABS SL 1050W (Enermax Revolution Rebadge)
Software Windows 8.1 x64 Pro w/ Media Center
Benchmark Scores Ducky Year of the Snake w/ Cherry MX Browns & Year of the Tiger PBT Keycaps | Razer Deathadder Black
crmaris, I just wanted to say thank you :toast: for bringing TPU some top-notch PSU reviews! Keep it up!
Nov 13, 2009
5,614 (1.50/day)
San Diego, CA
System Name White Boy
Processor Core i7 3770k @4.6 Ghz
Motherboard ASUS P8Z77-I Deluxe
Cooling CORSAIR H100
Memory CORSAIR Vengeance 16GB @ 2177
Video Card(s) EVGA GTX 680 CLASSIEFIED @ 1250 Core
Storage 2 Samsung 830 256 GB (Raid 0) 1 Hitachi 4 TB
Display(s) 1 Dell 30U11 30"
Case BIT FENIX Prodigy
Audio Device(s) none
Power Supply SeaSonic X750 Gold 750W Modular
Software Windows Pro 7 64 bit || Ubuntu 64 Bit
Benchmark Scores 2017 Unigine Heaven :: P37239 3D Mark Vantage
Thanks for the review.

John Doe

Meh unit IMO. According to [H], Transient (instant) response is weak;


340mV on +12v at %25 load. Solid modern units don't drop this much. For example, an older TPQ-850 drops 200mV:


With that said, cooling is meh, it lacks multi-rail OCP, and the unit is on the overpriced side. You can get a HCP-1200 for $20 more. Or a Silencer 910 for $130 AR rather than paying $260 for this.

[H] is hyping this up with phrases like "BUY NOW BUTTON", which leads me to think they're marketing the unit with the ad for this PSU on their site. It's not an "excellent 10/10" unit, nor the best price/performance. It regulates amazingly, but people will buy this because it's SeaSonic and Platinum (saves a few dollars over Gold) rated.
Sep 6, 2010
43 (0.01/day)
Great review, and wow!

This is the first thorough PSU review I've ever read. I love the use of the oscilliscope to measure the ripple voltages, as well as the efficiency-under-load stats which I've seen in the past. The explanation of all the parts involved was also very interesting. Great work!

It'd be cool to see a comparison with some of this unit's competitors on all of the tests, and not just some of the more common ones. I really don't have much of a reference point for this information yet.

Keep up the great work.
Aug 3, 2008
1,644 (0.39/day)
System Name Black Killing Machine
Processor Delidded NO IHS mount Intel i7-4770k
Motherboard Gigabyte Z87X-OC
Cooling Swiftech DIR655 pump, Watercool HEATKILLER® GPU-X³ 79X0 Ni-Bl gpu, DT SNIPER CPU block, UT60 420 RAD
Memory Gskill Trident 2400mhz CL9 Samsung IC9
Video Card(s) SAPPHIRE HD7950 OC 950mhz Edition, VaporX HD7950
Storage 2xM4 Crucial 64GB RAID 0, 1 OCZ AGILILITY 3 60GB, WDCB 500GB x2RAID0, WD Green, Hitachi 1TB
Display(s) Samsung SyncMaster 226BW and 24" 120hz BenQ gamer
Case SilverStone Raven rv-02
Audio Device(s) Audio Technica ATH-AD900 headphones, Topping D2 DAC/Headphone AMP
Power Supply Seasonic Platinum 860
Software Windows 7 Pro 64bit
Benchmark Scores http://hwbot.org/user/sonda5/ Delidding is magic. http://valid.canardpc.com/2878462
Over rated PSU for the price?

Just wanted to share some of my observations that I have made on the Platinum 1000 and Platinum 860 parts.

From the date that this review in October of 2011 was done I have noticed that the newer reviews of the Platinum 1000 have improved electronic parts and design on the inside.

Revisions of parts? or is the "XP" mean experiemental?

Oct 2011 Platinum 1000 at TPU review.

March 2012 at OCAholic review.

Also the newer part Platinum 860 is very close to being October 2011's Platinum 1000 in electronic make up.
From Planet3DNow Review.
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Mar 28, 2016
173 (0.12/day)
System Name Bonds silencer
Processor Core i7 5820k
Motherboard Asus sabertooth x99
Cooling Be quiet! Dark rock 3
Memory 4x4gb corsair vengeance(blue)
Video Card(s) Gigabyte Windforce GTX 980 ti
Storage Samsung evo 850 500gb ssd/western digital blue 1tb 7200rpm
Display(s) Asus rog swift pg278q
Case Be quiet! silent base 800 window edition
Audio Device(s) Sound blaster zxr
Power Supply Seasonic platinum 1000w 80+ platinum certified
Mouse Logitech proteus g502
Keyboard Corsair k70 2016 RGB
Does anyone here know the pinout of this unit with cables pinout ?