Epilogue
It is nice to see Super Flower keeping up with their good name, releasing one good PSU after another. The Leadex VII XP 1200W is a top-performing unit featuring tight load regulation, low ripple, high efficiency, and terrific transient response at 12V. What matters the most in a PSU’s performance is its transient response because there are no static loads in real-life conditions, and Super Flower’s Leadex platforms are good in this section from the very first versions of these platforms, used in the legendary EVGA G2, P2 and T2 lines.
At the time of the review, this unit is offered at a promo price on Newegg, at $220, which is a good price for a high-end Platinum 1200W ATX v3.x unit. The only catch is that this is a pre-order, so you must wait until you get your PSU. Although SF advertises this as an ATX v3.0 unit, it actually is also compliant with the ATX v3.1 requirements from the moment it uses a pair of 8-pin connectors to power the 12V-2×6 cable. According to the following, the ATX spec states that a PSU can have a 12+4 pin header on its modular panel or use any other socket with enough capacity to power the 12V-2×6 cable instead.
ATX Spec 3.1 [5.2.2.4.3] “The two mating components of the 12V-2×6 are the Cable Plug, which terminates the cable harness, and the PCB Header, which is mounted on the Add-in Card and, optionally, within a modular power supply.”
The word optionally from the above passage is what makes the difference.
At $220, the Leadex VII XP 1200W is a terrific choice, and you should go for it as long as this offer stands. I will advise SF to continue this offer for as long as possible, but they do have to make a profit to continue releasing such good PSUs.
To check all alternative PSU offerings, read my Best ATX v3.x PSUs article before investing in a new power supply. You help me a lot by using my affiliate links, which don’t increase the product’s price. I get a commission from Amazon every time you do it, which can make a difference for me, especially now that I am on my own, working exclusively for my media and not for someone else.
Buy DeepCool PX1200G
Buy FSP Hydro PTM X PRO 1200W
Buy be quiet! Straight Power 12-1200w
Buy be quiet! Pure Performance Power 12 M 1200W
Buy Seasonic Vertex GX-1200
Buy Thermaltake Toughpower PF3 1200W
Buy Thermaltake Toughpower GF A3 1200W
Buy Corsair RM1200x Shift
- At $220 it is a no-brainer!
- Top overall performance
- Delivered full power at 47°C
- Silent operation up to mid-loads
- ATX v3.x and PCIe 5.x ready
- High build quality
- Terrific transient response at 12V
- Tight load regulation
- Good ripple suppression
- Efficient
- Effective protection features
- Long hold-up time
- Long and accurate power ok signal
- Alternative Low Power Mode (ALPM) compatible
- Fully modular
- Plenty of cables, including a high power one (12+4 pin, 600W)
- FDB fan
- Compact dimensions
- Ten-year warranty
- Noisy at high loads
- Above 0.1W standby power at 230V
Hi,
“Buy Super Flower Leadex VII XP 1200W” button leads to Newegg page with a PRO version of this model which is very different (unknown to me at the time of order). I didn’t see 1200W PRO review on this site (is there one?), however, according to 1000W PRO version review the PRO model is way worse than non PRO.
Should I cancel the order of Super Flower Leadex VII XP 1200W PRO?
leadex vii xp1200 platinum or leadex vii xg 1300 gold, price is similar. Which one is better for amd 9950x + 5090 GPU? Thank you.
I would go for the XP unit
Hi,
Thanks so much for reviewing this unit, very helpful as I’m looking to upgrade in a way that also allows sufficient headroom to use next generation GPUs.
Looking at the latest versions that are up for sale it appears as though Super Flower has changed the connector design to what they are calling their “universal Super Connector”. I would imagine this doesn’t have any impact on the performance of the unit but I am by no means an expert.
Also with rumors that next gen GPUs could require 2x 12VHPWR, would the use of universal connectors enable this (with a combination of a 12+4 and 2×6+2 cables)?
Are you sure you reviewed the XP model here and not the XG ? because the photos on your site and the photos on the manufacturer’s site don’t match up ,on the manufacturer’s site XP model has different connector plugs on the psu side.
this was an early sample and because of my results, they changed the model’s number. Actually because of Cybenetics ratings.
Hi Aris,
i am still a little bit confused. On their website Super Flower lists a XG (Super Flower Leadex VII XG) and a XP (Super Flower Leadex VII Platinum Pro) series, both Cybenetics Platinum certified.
Your Cybenetics measurements for both series are almost identical. Except for different cable lengths, is there any difference between those psu’s? Or is this only a relabeling because of your cybenetics rating? In germany the XP and XG 1000w models cost almost the same. Assuming the price stays the same, which series would you recommend?
Thanks 🙂
Hi! We don’t do re-labeling, we have to check everything.
SF followed/thought according to the 80 P scheme. They will start thinking according to Cyben’s schemes from now on. If they cost the same, XP.
At the same prices, which is better and do you recommend buying seasonic Vertex platinum px 1200 or leadex vii 1200 platinum or leadex vii 1300 gold ?
thank you.
Where you found/buyed it in Germany?
I want it too.
SF sent it to me, I didn’t buy it. Sorry no clue where you can find it in Europe.
Hello,
I was wondering if this PSU is really atx 3.1 specification? If the connection is loose, will it short out and do the 0 watt/protection feature? Does it also have “Permitted on the 12V rail up to 13.75A for 0.1ms (165W), allowing for higher power draw from PCIe devices”?
I understand this is a really good PSU, but at the same time the 3.1 spec is confusing.
Thanks
Hi! It is ATX v3.1 since Intel doesn’t require 12V-2×6, but it says it is mandatory only on the GPU.
It can deliver 200% of its power for 0.1ms.
It can be confusing indeed!
Hello, Superflower has released this 1200 model in PRO version, with other types of connectors, I don’t know if it has more internal differences and is superior to the one in the review, are you going to do an article on the new 1200w model?
thank you and greetings.
https://www.super-flower.com.tw/en/products/leadex-vii-xp-1200w-atx-30-bk-20240123160801
As the previous author, I am also wondering if this PSU as part of new ATX 3.1 standard will send open open signal when nothing is connected to the high power plugs? If not, does it mean it’s not 3.1? Recently I have ordered this model in PRO version.
If anyone is interested, bellow is a reply by super flower customer support.
The PSU SF-1200F14XP is both ATX 3.0 & 3.1 certified. You may find out the certification in below charts (from Intel PSU Selector & Cybenetics Labs).
It includes a 12V-2X6 cable with 2sensor pins as Ground-Ground for 600W Output. The open-open revision happens on GPU socket. It detects the provided cable to draw the power consumption.
The included cables can be plugged into any 9 universal plugs as they are universal.
They are able to supply 600W on demand.