The MSI MPG Z690 Carbon WIFI (DDR5) Motherboard Review: A Decent Mid-Ranged Z690
by Gavin Bonshor on September 8, 2022 8:00 AM 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 Z690 we are running using Windows 10 64-bit with the 21H2 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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worldsenvy - Sunday, September 11, 2022 - link
It would be more apt to compare it to if they made the price of eggs $24 for a dozen. 390 for a Mid range board is ridiculous.PeachNCream - Thursday, September 8, 2022 - link
Agreed that PC component prices are utterly absurd at the moment. Some of the cost is tied up in inflation but there is also cost passed onto consumers through the addition of non-functional additions like plastic coverings and lighting. The establishment of various chipset categories (remember when there was basically one chipset to support a CPU generation and it had all the features instead of a set of progressively more stripped down alternatives that now supposedly justify the higher component cost of less feature-limited motherboards?) has done a lot to build a market segment that snags the extra dollars once lost to tinkerers and overclockers that were actually getting extra performance for free instead of pay a price premium for unlocked parts that basically roll the price of overclocking performance gains into said parts.Probably the best thing you can do to shut this sort of garbage from OEMs down is to buy a good enough for work/communication laptop - something lower cost - and either work within its capabilities to play games it can run well. There are lots and lots of games that do not need anything beyond a bottom feeder budget laptop with a garbo iGPU that can keep you amused for the rest of your life. Alternatively, you can always use the cost of a motherboard like this plus a few extra dollars to buy a console. The money you save in additional components can go into the somewhat higher cost of the games on a closed console platform and still buy you a LOT of amusement for the same total price as a desktop gaming PC without any software.
Basically, at this point, gaming PCs are not very cost-effective purchases on just hardware alone. Nevermind the power demands and, if you live in a warm climate, the secondary power costs incurred moving their waste heat out of your home. It's a no-brainer to just change how you entertain yourself a little bit to move the needle to more practical alternatives and you ultimately don't really have to compromise on the end goal of killing time in a fun way either.
meacupla - Thursday, September 8, 2022 - link
List of things making mobos more expensive these days:PCIe 5.0 capable traces
DDR5 capable traces
VRM design that can handle overclocked 12900K
Copper prices have gone up
Supply chain issues
Tariffs
Inflation
That and this mobo is not mid-range. It is high end. It's not a halo product, but it is packed with above average features. IDK why anandtech insists on calling it "mid-ranged", when it's price point is 5th from the top in MSI's intel 12th gen lineup.
MSI Z690 Tomahawk Wifi, and Z690-A Wifi are significantly cheaper.
timecop1818 - Saturday, September 10, 2022 - link
> DDR5 capable tracesThe price difference between PRO-A Z690 and PRO-A Z690 DDR5 is like $15.
meacupla - Thursday, September 8, 2022 - link
Those memory overclock speeds from the corsair kit are abysmal.Is the corsair kit using Micron dies? because I am getting a lot of info that those are trash and can barely hit 5400.
You really need to get your hands on some SK Hynix or Samsung die DDR5, preferably SK Hynix, to see what the mobo is really capable of.
sonny73n - Saturday, September 10, 2022 - link
18 true phase for CPU VRM is way overkilled. Back in Sandy Bridge day, 6-8 true phase considered premium and we could overclock the hell out of the chip. Nowadays processors get heat up too fast, I'd rather leave them on stock clock or underclock in case of GPU.They should instead implement a better audio design with a high end DAC (ESS or AKM comes to mind) and a good headphones amp to drive 600 Ohms headphones.
RestChem - Sunday, September 18, 2022 - link
What kinda baffles me is how quickly all the manufacturers spat out not just a couple but five or more Z690 boards, then for good measure additional some SKUs with tacit DDR5 support (though in all cases I've bothered to check so far the claimed support for dual-rank configs is limited to about five kits total from reference up to 6000) but all their top-end stuff is loused up with WiFi and blinky dragons and various, often questionable airguide/heatsink/EMF-shielding combos as though that's what's going to sell a board to hardcore OCers. Who the hell buys a $500-1000 mobo and connects through WiFi, or would want that on-board? Why not lots of room, great cooling, great unadorned boards and, I don't know, some free GPU braces? How do you sell this thing against the Pro Z690-A at a bit over half the price?