GIGABYTE Z590 Aorus Master Review: Soaring High With Rocket Lake
by Gavin Bonshor on April 28, 2021 1:00 PM ESTSystem Performance
Not all motherboards are created equal. On the face of it, they should all perform the same and differ only in the functionality they provide - however, this is not the case. The obvious pointers are power consumption, POST time and latency. This can come down to the manufacturing process and prowess, so these are tested.
For Z590 we are running using Windows 10 64-bit with the 20H2 update.
Power Consumption
Power consumption was tested on the system while in a single MSI GTX 1080 Gaming configuration with a wall meter connected to the power supply. Our power supply has ~75% efficiency > 50W, and 90%+ efficiency at 250W, suitable for both idle and multi-GPU loading. This method of power reading allows us to compare the power management of the UEFI and the board to supply components with power under load, and includes typical PSU losses due to efficiency. These are the real-world values that consumers may expect from a typical system (minus the monitor) using this motherboard.
While this method for power measurement may not be ideal, and you feel these numbers are not representative due to the high wattage power supply being used (we use the same PSU to remain consistent over a series of reviews, and the fact that some boards on our testbed get tested with three or four high powered GPUs), the important point to take away is the relationship between the numbers. These boards are all under the same conditions, and thus the differences between them should be easy to spot.
Non-UEFI POST Time
Different motherboards have different POST sequences before an operating system is initialized. A lot of this is dependent on the board itself, and POST boot time is determined by the controllers on board (and the sequence of how those extras are organized). As part of our testing, we look at the POST Boot Time using a stopwatch. This is the time from pressing the ON button on the computer to when Windows starts loading. (We discount Windows loading as it is highly variable given Windows-specific features.)
DPC Latency
Deferred Procedure Call latency is a way in which Windows handles interrupt servicing. In order to wait for a processor to acknowledge the request, the system will queue all interrupt requests by priority. Critical interrupts will be handled as soon as possible, whereas lesser priority requests such as audio will be further down the line. If the audio device requires data, it will have to wait until the request is processed before the buffer is filled.
If the device drivers of higher priority components in a system are poorly implemented, this can cause delays in request scheduling and process time. This can lead to an empty audio buffer and characteristic audible pauses, pops and clicks. The DPC latency checker measures how much time is taken processing DPCs from driver invocation. The lower the value will result in better audio transfer at smaller buffer sizes. Results are measured in microseconds.
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JVC8bal - Friday, April 30, 2021 - link
I don't understand your point you responding to what I wrote. This has nothing to do with AMD vs. Intel. I guess there is a MAGA-like AMD crown on here looking for conspiracies and confrontations.As written above, the PCIE 4.0 specification implementation first found on x570 showed up on Intel's first go-around. If anything can be said, those working on the Intel platform motherboards learned nothing from prior work on the AMD platform. But whatever, read things through whatever lense you do.
TheinsanegamerN - Friday, April 30, 2021 - link
I thought it was more of a BLM- like intel crowd that looks for any pro AMD comment and tries to railroad it into the ground while dismissing whatever merit the original comment may have hadTheinsanegamerN - Wednesday, April 28, 2021 - link
I'm dissapointed that these newer boards keep cutting down on I/O. This board only offers 3 PCIe X16 slots, the third is only x4 and the second cuts half the bandwidth from the first slot despite multi GPU being long dead. So if you had, say, a sound card and a capture card, you'd have to cut your GPU slot bandwidth in half AND have one of the cards right up against the GPU cooler.IMO the best setup would have all the x1/x4 slots ont he bottom of the motherboard so you can use a tiriple slot GPU and still have 3 other cards with room between for breathing, with all the bottom slots fed fromt he chipset not the CPU.
And for those whoa re going to ask: "why do you want more expansion everything is embedded now blah blah". If you only have a GPU and dont use the other slots that's why you have mini ITX, or micro ATX if you want a bigger VRM. Buying a big ATX board for a single expansion card is a waste.
abufrejoval - Thursday, April 29, 2021 - link
While I am sure they'd love to sell you everything you're asking for, I'm less convinced you'd be ready to pay the price.You can't get anything but static CPU PCIe lane allocations out of a hard wired motherboard, with bi/tri/quad-furication already being a bonus. You need a switch on both ends for flexibility.
That's what a PCH basically is, which allows you to oversubscribe the ports and lanes.
In the old 2.0 days PCIe switch chips were affordable enough ($50?) to put next to the CPU and gain full multiple x16 slots (still switched), but certainly not without a bit of latency overhead and some Watts of power.
All those PCIe switch chip vendors seem to have been bought up by Avago/Broadcom who have racked up prices, probably less because they wanted to anger gamers, but because these were key components in NVMe based storage appliances where they knew how much they could charge (mostly guessing here).
And then PCIe 3.0 and 4.0 are likely to increase motherboard layout/trace challenges, switch chip thermals or just generally price to the point, where going for a higher lane-count workstation or server CPU may be more economical and deliver the full bandwidth of all lanes.
You can get PCIe x16 cards designed to hold four or eight M.2 SSDs that contain such a PCIe switch. Their price gives you some idea of the silcon cost while I am sure they easily suck 20 Watts of power, too.
If you manage to get a current generation GPU with PCIe 4.0, that gives you PCIe 3.0 x16 equivalent performance even at x8 lanes. That's either enough, because you have enough VRAM, or PCI 4.0 x16 won't be good enough either. At both 16 or 32GByte/s PCIe is little better than a hard disk, when your internal VRAM delivers north of 500GB/s...because that's what it takes to drive your GPU compute or the game.
The premium for the ATX form factor vs a mini ITX is pretty minor and I couldn't care less how much of the tower under my desk is filled by the motherboard. I tend to go with the larger form factors quite simply because I value the flexibility and the ability to experiment or recycle older stuff. And it's much easier to manage noise with volume.
TheinsanegamerN - Friday, April 30, 2021 - link
Boards like the gigabyte X570 elite exist, which have a plethora of USB ports and multiple additional expansion ports none of which sap bandwidth from the main port.This master is a master class is taking money for looking "cool" and offering nothing of value.
Spunjji - Thursday, April 29, 2021 - link
Agreed, that layout is a big mess and rather defeats the point of having an ATX board - but then a huge number of these are just going to go into systems that have one GPU and nothing else, but the buyer wants ATX just because that's what they're used to 🤷♂️Linustechtips12#6900xt - Thursday, April 29, 2021 - link
AGREED, my b450m pro 4 has like 4 USB 3, 1 USB-a 10gbps, 1 USB-c 10gbps and 2 USB 2.0. frankly amazing io and i couldn't appreciate it moreMolor1880 - Thursday, April 29, 2021 - link
Not completely the motherboards fault though. There are only 20 PCIe 4.0 lanes from the CPU. 4 for IO and 16 for graphics. There are no general purpose PCIe 4.0 lines off the Z590 chipset, and the DMI link is wider, but still just PCIe 3.0. When Intel starts putting general purpose PCIe 4.0 lanes on the chipset (690?), a lot of those issues would be resolved. Otherwise, it's a bit of a wonky workaround to shift things for one generation.Silver5urfer - Wednesday, April 28, 2021 - link
Unfortunately GB BIOS is not that stellar ? And why does this mobo have a fan to cool the 10G LAN chip ? I do not see that with some other boards like X570 Xtreme, X570 Prestige Creation and Maximus XIII Extreme.TheinsanegamerN - Thursday, April 29, 2021 - link
Gigabyte BIOS is fine, the UI is a tad clunky, but hey it's a huge leap from BIOSes from the core 2 era. Just takes a little getting used to.