Power Delivery Specifications & Comparison

One of the most discussed aspects on motherboards is the power delivery, with users generally favouring those with good specifications and efficient designs. The AMD X570 chipset heralded some appreciated improvements to its desktop range, but with AMD's 7 nm architecture stretching to the HEDT side of things , these improvements are expected of the higher-specification TRX40 models. The TRX40 chipset is similar in design to that of X570 with 'spare' PCIe 4.0 lanes designed to allow manufacturers to implement its own unique mixture of specifications through extra USB 3.1 G2 connectivity, and more PCIe 4.0 M.2. 

Please note that this information is self-reported, so until we can review any given TRX40 board, we're operating on the honor system, trusting vendors to supply honest and upfront information. As we review the hardware we will be checking, and we will be keeping this page up-to-date as more information becomes available.

Note: We reached out to ASUS about its PWM controller, and they stated that it doesn't have a part number and is made exclusively for them. As we find out more information on this, we will update the table below.

TRX40 CPU Power Delivery Comparison
Motherboard Controller H-Side L-Side Chokes Doubler
ASRock TRX40 Creator ISL69247
(8+0)
ISL99390
(8)
8 -
ASRock TRX40 Taichi ISL69247
(8+0)
ISL99390
(16)
8 ???
(8)
ASUS ROG Zenith II Extreme Undisclosed
(16+0)
TDA21472
(16)
? -
ASUS ROG Strix TRX40-E Undisclosed
(?+?)
TDA21472
(16)
? -
ASUS Prime TRX40-Pro Undisclosed
(?+?)
TDA21462
(16)
? -
GIGABYTE TRX40 Aorus Xtreme XDPE132G5C
​(16+0)
TDA21472
(16)
? -
GIGABYTE TRX40 Aorus Master XDPE132G5C
​(16+0)
TDA21472
(16)
? -
GIGABYTE TRX40 Aorus Pro WIFI XDPE132G5C
​(12+2)
TDA21472
(12)
? -
GIGABYTE TRX Designare XDPE132G5C
​(16+0)
TDA21472
(16)
? -
MSI Creator TRX40 XDPE132G5C
​(16+0)
TDA21472
(16)
? -
MSI TRX40 Pro 10G ISL69247
(6+0)
ISL9939
(12)
? ISL6617A
(6)
MSI TRX40 Pro WIFI ISL69247
(6+0)
ISL9939
(12)
? ISL6617A
(6)
The AMD TRX40 Chipset, What's New? ASRock TRX40 Creator
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  • amb9800 - Saturday, November 30, 2019 - link

    TB3 has not been open sourced. It's been royalty-free from the start, but any TB3 device still needs to be certified by Intel. Thus far the only TB3 devices that exist integrate Intel TB3 controllers, and very few non-Intel platforms have integrated TB3 (basically just a couple of X570 ASRock boards). Reply
  • Chaitanya - Friday, November 29, 2019 - link

    In order to integrate Thuberbolt, Intel needs access to microcode which is why very few boards even on AM4 come with it and even those solutions are iffy at best. Reply
  • eek2121 - Friday, November 29, 2019 - link

    Untrue, TB has been open sourced and will be a part of the USB 4.0 standard. The real answer is likely one I provided earlier: Intel CPUs have dedicated bandwidth for TB3, AMD CPUs hang it off the PCIE bus. Reply
  • amb9800 - Saturday, November 30, 2019 - link

    TB3 being incorporated into USB 4.0 definitely does not mean it has been "open sourced." Every TB3 device must still be certified by Intel. Reply
  • ender8282 - Saturday, November 30, 2019 - link

    I love the TB3 port on my laptop and docking station. It's way convenient. Honestly though I've never understood the use case on a desktop. If you've got an ATX motherboard and a decent sized case what need does it really solve? Reply
  • TechKnowbabble - Friday, December 20, 2019 - link

    According to this video the GIGABYTE TRX40 AORUS XTREME has a Thunderbolt 3 header called THB_C, but on the site the only mention to this i can find is a "GIGABYTE add-in card connector" which the AORUS Master and Wifi Pro have mention of also. I dont know why it is listed differently from the Designare or not mentioned in this article but it appears that all the Gigabyte TRX40 boards support thunderbolt 3 with add in card.
    https://www.youtube.com/watch?v=o21xINJF1tE&fe...
    Reply
  • NelsonK - Saturday, January 18, 2020 - link

    It might as well be -BetaMax-. Thunderbolt is Intel's baby, and you gotta dance to their tune to get the engineering specs -- Intel doesn't publish 'em. Only well-resourced (i.e., volume) manufacturers can feasibly spend to design and incorporate it, then produce to a scale that justifies the investment. Sure, that's not precisely a licensing fee, but it's one heckuva barrier to entry.

    These firms can all afford it, but, since VHS (USB) is good enough, why bother? USB "3.2" is pretty darn close and even uses the same Type-C port. In fact, you can even play your VHS tapes on this BetaMax -- USB devices will run at their native speeds when connected to Thunderbolt.

    And with USB 4, there will be no difference in speed. Is there even a practical difference in speed now? Do ya really need more than 10 Gbps? A few of you might, but not enough to pay the piper.

    This is a no-brainer for the board makers: USB 3.1 Gen 2 ("3.2") Type-C offers a lot more speed than most devices can hope to keep up with internally. In the instances where somebody wants to daisy-chain video, they're either mining (which just needs the chain, not so much the speed), or they're using a laptop and don't have space for a video card. Well, these are mainboards, folks. You've got a bunch of fat-pipe PCIe 4.0 16-lane slots that your graphics cards won't even make full use of 99.99% of the time they're running, as they throttle down to 2.0 or 1.0.

    BetaMax was better, but it died even before S-VHS was a real thing. ThunderBolt just got similarly voted down (massively) by pretty much all of big name manufacturers users trust enough and -might- have paid extra to get a board that has it.

    Looks like we're goin' with VHS once again, boys and girls... ;-)
    Reply
  • wilsonkf - Thursday, November 28, 2019 - link

    Check your last page. Do you really mean "ASUS X570" Product Stack? Also other brands... Reply
  • gavbon - Thursday, November 28, 2019 - link

    Good spot Wilson, I really appreciate it. I've been neck-deep in X570, I must have been in AM4 mode! Reply
  • tamalero - Thursday, November 28, 2019 - link

    hey Anana, any chance you could build a full comparison table between number of ports, pci-e slots, wifi, ethernet..etc..? Reply

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