The 6 Best Motherboards With 8 RAM Slots in 2021
Mar 23, 2021
If you told us there would be motherboards with 256GB RAM support 20 years ago, we would have laughed at your funny joke.
And yet, here we are!
AMD and Intel’s motherboard innovations have come so far that there are now premium offerings that boast 8 DIMM slots capable of up to 32GB each.
While the average user does not need this amount of RAM, if you’re building a serious setup for production, hosting, or the most powerful PC you possibly can, then this capability could really take you to the next level.
Today’s feature is here to guide you through the best motherboards with 8 RAM slots. These are premium offerings with lots more going for them than just the RAM, too.
- Best AMD Motherboard With 8 RAM Slots: MSI Creator TRX40
- Best Intel Motherboard With 8 RAM Slots: ASUS ROG Strix X299-E
- Best Budget AMD Motherboard With 8 RAM Slots: Asus Prime TRX40-PRO
- Best Budget Intel Motherboard With 8 RAM Slots: GIGABYTE X299X AORUS Master
- Best High-End AMD Motherboard With 8 RAM Slots: ASUS ROG Zenith II Extreme Alpha
- Best High-End Intel Motherboard With 8 RAM Slots: ASUS ROG Rampage VI Extreme Encore
Best AMD Motherboard With 8 RAM Slots: MSI Creator TRX40
We’re starting with AMD in no particular order (both leading manufacturers are kings in the high-end desktop space, though AMD is a great choice for those after a CPU with the most cores).
The MSI Creator TRX40 is a fantastic offering. While no mobo with 8 ram slots is cheap, this option achieves a great sweet spot; balancing most of the features you expect in a premium motherboard, while not carrying the 4-figure price tag some HEDT hardware can creep up to.
This Threadripper motherboard doesn’t just boast 8 RAM slots but also supports up to 256GB DDR4 RAM.
Don’t assume this is the case for all 8-sotted offerings, many only go up to 128GB/even 64GB in some budget cases.
What’s more, its JEDEC RAM capacity allows you to achieve 256GB RAM @ 3200MHz, this is an insane speed for this quantity of JEDEC which we would often expect to be bottlenecked further at these amounts.
This is an E-ATX motherboard, with an incredible level of power draw across the board. With a Threadripper CPU and powerful GPU/s, we can’t imagine any builder, be it for rendering, gaming, or other high-end needs, would be left wanting more power than a build on this motherboard could offer.
Speaking of GPUs; with 4x PCIe 4.0 x16 slots and compatibility for 3-way Nvidia SLI or 3-way AMD Crossfire GPU setups, the amount of graphical capability here is insane, and we’re really impressed by MSI’s ability to balance the power draw between the RAM, CPU, GPU, and other onboard features.
The motherboard excels storage-wise too, with 6 SATA 6Gb/s ports & up to 3 M.2 storage slots, it’s just another example of the board’s ability to tick all the boxes and we expect this to be a decent capability (alongside a premium PC case) for those after a server motherboard or one for virtual hosting.
On the notion of overclocking your key specs, the Creator TRX40 also lives up to its HEDT name, with plenty of heatsinks operating through the board to maintain appropriate thermal control.
You might not have the bells and whistles of our premium picks below, but relative to many other options on the market, you can get expect to achieve some impressive speed increases.
It’s also worth touching on the I/O panel port and Wi-Fi/audio availability here too; with a whopping 9 x USB 3.2 type-A outputs (some equipped for Flash BIOS use also), a 20G USB type-C port, in-built Intel Wi-Fi 6/bluetooth, Realtek ALC1220 Codec/outputs for high-quality 7.1 audio & 10G Super LAN.
The inner connectivity is equally impressive, with tonnes of 4-pin fan connectors, ARGB/RGB headers, and all the other ports you’d expect.
What else is there to say? Not only is this the best motherboard with 8 DIMM slots for AMD builders, but it’s an offering that excels in all the categories HEDT users demand.
If you’re looking for the most power possible without getting into nearly 4 figures for your motherboard alone, this is an incredible choice.
Best Intel Motherboard With 8 RAM Slots: ASUS ROG Strix X299-E Gaming II
If you are instead, after an Intel LGA 2066 motherboard with 8 DIMM slot capability, our top pick comfortably goes to this ASUS offering.
Coming in at a very impressive price-point for the features, it’s a worthy rival to our top AMD choice.
With its 8 RAM slots also supporting up to 256GB RAM at impressive speeds (or lower quantities at up to 4266MHz). Whether it’s quantity, speed, or a mix of both, you won’t find better RAM capability at this price-point.
With a very impressive set of PCI-e 3.0 x16 slots, you will have the option to install up to 3-way GPU builds with SLI or Crossfire.
ASUS is also a great reliable brand as far as decent BIOs and onboard overclocking software go; often ranking very favorably in benchmarks if you’re after a fantastic OC motherboard.
Another offering with 3 x M.2 slots, the E Gaming II isn’t just great for storage, but also slightly trumps our top AMD pick with an extra 2 SATA ports totaling 8 (6 was already impressive!).
Port-wise, there’s a lot on offer here. With 9 x USB 3.2 Type-A & 1 x Type-C ports, as well as a SupremeFX CODEC S1220A leading its audio ports perfect for high-quality speakers or headphones, there is little left to desire network connectivity-wise (the LAN port is 2.5G vs our top AMD pick’s 10G, but we don’t expect many users will mind).
Also for those aesthetic focussed users, ASUS is a great brand for offering onboard ARGB lighting with the fantastic ASUS ARGB software/onboard headers to create a beautifully illuminated build alongside an RGB PC case (or simply one focussed on looking great).
Alongside one of the Core-i9 10000X series CPUs in its X299 socket, it’s hard to imagine any type of user wanting more from a high-end build.
At an incredible price for the offering, this is comfortably our top pick for the best Intel mobo with 8 RAM slots.
Best Budget AMD Motherboard With 8 RAM Slots: Asus Prime TRX40-PRO
Looking for a cheap motherboard with 8 RAM slots feels like a bit of an oxymoron; you’re not going to find the budget options of the mainstream market here.
But with that said, there’s still a huge difference in the price range between the top 8 DIMM options and the cheapest, and we’re pleased to recommend this AMD offering as a very decent choice for those after the best budget way to run such a high RAM build.
One of the cheapest Threadripper motherboards available today, we’re impressed that the TRX40-PRO still boats 256GB memory support across its 8 DIMM outputs; we expect with the onboard specs, you may not get quite the same speeds as that of our top AMD pick @ 256GB, but the board will still be capable of a very impressive speed/GB balance when compared to a huge majority of other market offerings.
One of the biggest changes to our more expensive offerings is slightly reduced power draw to PCIe, with 3 4.0 slots, it’s still a fantastic capability for a budget, but supports a max of 2-way SLI/CLX instead of our main choice’s triple-GPU capability (it’s really up to your if this matters, dual GPUs will still offer incredible utility for most HEDT builds).
The unit still boasts plenty of onboard M.2, VRM, and active chipset thermal protection with its heatsink arrays (alongside the great ASUS UEFI BIOs, you’ll have plenty of customization available).
For storage, we’re pleased to see the TRX40-PRO boasts 3 x M.2 slots and 8 x SATA ports at 6Gb/s; if your prime needs are storage, this may even be a better choice for you than our overall best AMD pick!
Port-wise, you still have a great array of connectivity, with 9 x USB-Type A, 1 x USB Type-C, and decent onboard audio. Compared to our more expensive picks, it’s worth noting the outputs are slightly less capable, with only 3 of the Type-A USB ports being 3.2 Gen 2 (we expect most users will be fine balancing their needs here though).
There is no included Wi-Fi or Bluetooth onboard. We expect this has been done to achieve both the fantastic price and also minimize the power draw. If you do need these, a good Wi-Fi card and Bluetooth adapter will do the job just fine.
The budget hasn’t compromised on headers either, with this ASUS motherboard still full of decent fan, RGB & ARGB connectivity.
If the reduced ports, no Bluetooth/Wi-FI, missing third GPU capability and slightly lower expected RAM speeds don’t bother you much, know we very nearly made this our top overall AMD pick.
It is, without doubt, the best cheap Threadripper motherboard with 8 RAM slots and an incredibly capable HEDT base for its price.
Best Budget Intel Motherboard With 8 RAM Slots: GIGABYTE X299X AORUS Master
Although our top pick is already a very cheap 8 DIMM motherboard offering, there’s another compelling option in the AORUS Master.
Previously highlighted on our E-ATX motherboard feature, this pick is known for being one of the best value HEDT choices on the market, and is deceptively powerful in many ways.
Let’s start with one of the most impressive capabilities of the X299X, its PCIe bandwidth is capable of 4-way GPU builds (with a 48-lane CPU).
You’d be forgiven for thinking this means it’s better than many of our pricier offerings, and for those focussed on graphical capability, it’s a very compelling choice!
RAM-wise, the system still boasts the ability to support 256GB RAM (we expect slightly lower speeds than the top overall/high-end Intel choices, but not significant in the grand scheme of things). Bear in mind that if your CPU is <48 lanes, the maximum support will be 128GB RAM (still a fantastic amount even for a production machine).
Port-wise, the motherboard is still plenty equipped with 9 x USB 3.2 Type-A and 1 x Type-C. The audio codec is a little more basic than our higher ends choices but still capable of great sound output to the average listener (especially with a good pair of headphones). We’re happy to see the board still includes Wi-Fi and Bluetooth too.
The inner connectivity is still good, with plentiful fan headers and outputs for the front I/O panel.
The only thing to reiterate is that to access its 4-way GPU capability, and many other features (including 256GB RAM instead of 128GB max) the motherboard requires a 48-lane CPU to draw from.
That’s the secret to the X299X, part of its lower price tag is achieved by utilizing more capability from the onboard CPU.
While more expensive offerings definitely still require high-lane CPUs for their capability, they can get more done with less. With this dependence, you can also expect to be a little more limited speed-wise if you choose to use all of the Master’s functionality (e.g. quad GPU, 256GB RAM, max storage).
So if you’re a top-end user, you may desire one of the other picks, but as far as the best cheap Intel motherboard with 8 RAM slots goes, there is no contender more worthy than the Aorus Master.
Best High-End AMD Motherboard With 8 RAM Slots: ASUS ROG Zenith II Extreme Alpha
Now, we will say that we think the mid-range or budget AMD board picks will satisfy many users, even those after a HEDT setup with 256GB RAM.
That said, if you want the best sTRX4 motherboard possible in the premium price range, this is our choice for you.
With its 8 DIMM slots, this ASUS offering doesn’t just support 256GB RAM, but according to user reports, can handle that quantity at 3600MHz.
This is an incredible achievement on modern hardware, if your needs are of a serious production/rendering persuasian, this RAM capability could be a game-changer for high-end productivity.
The PCI-express 4.0 x16 capability is what you would hope for in a top-end choice, with excellent bandwidths capable of 3-way SLI/Crossfire and unrivaled overclocking capability.
Now, onto storage…
The Extreme Alpha boasts, wait for it…5 PCIe 4.0 bandwidth M.2 drive & 8 x SATA ports!
We are floored by how ASUS has managed to utilize the power draw to incorporate this on top of all of the other specs throughout the motherboard and we can’t imagine anybody needing more storage capability.
There is no compromise on ports either, with 2 x USB Type-C, 6 x USB 3.2 Gen 2 & 4 x USB3.2 Gen 1 outputs, we haven’t come across a motherboard with more USB connectivity. These are accompanied by a 10Gbps ethernet port, AX200/Wi-fi 6, and a fantastic codec for high-quality audio output.
Internal headers are what you would expect in a premium ASUS mobo too, with plenty of connectivity for ARGB/RGB lighting and 4-pin fans.
As you’d expect at this high-end price, it’s also one of the most beautiful motherboards we’ve come across.
Not only does it have some gorgeous ARGB lighting surrounding the top and bottom, but its various heatsinks are designed in a way that has clearly put aesthetics in the equation (without compromise on thermal control capability, something the Extreme Alpha is unrivaled for).
Speaking of thermal control, with all of its onboard heatsinks, intelligent layout, various buttons to test/switch during failed OCs, and fantastic BIOs, the Extreme Alpha is one of the best overclocking motherboards available for Threadripper (or any socket, for that matter).
There is even a customizable OLED screen to display either key thermals or other overclocking stats you’re focussed on at a given time.
Do you need everything the Extreme Alpha offers to enjoy the benefits of 8 RAM slots? No, our above choices are very respectable offerings.
But if you want to build on the most powerful AMD motherboard possible in nearly every sense of the word, then this is the choice for you.
Best High-End Intel Motherboard With 8 RAM Slots: ASUS ROG Rampage VI Extreme Encore
Last but most certainly not least is our premium 8 DIMM Intel motherboard option.
The Extreme Encore is made for the top echelon of HEDT and overclocking with its 16 70 amp power stages giving an incredible capability across the board.
Its 8 RAM slots are capable of 256GB with decent speeds, its PCIe capable can support up to 3-way Crossfire/SLI & with 3 x m.2 outputs and 8 x SATA ports, it’s got fantastic storage allotment.
Similar to our top AMD pick, the overclocking capability is top class. Working alongside the fantastic AI overclocking/UEFI BIOs is an active VRM heatsink & onboard M.2 heatsinks (not to mention an incredible array of fan headers).
It’s one of the best-looking motherboards, with its metal heatsinks sharply covering many of the more traditional “ugly” board components, with ASUS design lighting on the front and further illumination on the bottom; this would look gorgeous in a clear PC case.
One thing we will say; if you are trying to support the best of the best as we expect for this price range, we think that AMD may be the better choice for you.
That’s not to say the Extreme Encore isn’t capable of an immensely powerful build for rendering, production, server-building, or more.
We just recognize that our AMD premium pick above offers unparalleled connectivity with PCIe 4.0 and its 5 M.2 slots amongst all the other incredible features.
That said, if your heart is set on an Intel HEDT, this is comfortably our choice for the best 8 RAM slot motherboard for LGA 2066 and still packs an incredible punch.
LGA 1200 or AM4 Motherboards with 8 RAM Slots
We appreciate some users may be looking for significant RAM on mainstream, non-HEDT motherboards.
However, for 8 RAM slots, you need to be looking at LGA 2011 and sTRX4 motherboards.
Not only are these the only type with support for 8 slots, but also the only sockets that can accommodate up to 256GB of RAM.
On top of this, if you are building a production/hosting machine that requires 8 RAM slots, we expect you’ll probably want a HEDT motherboard to match anyway. These machines give you CPUs with insane amounts of cores, the power to draw lots of PCIe slots (for multi-GPU builds), and much more.
If however, you want to build a setup with mainstream GPUs, then check our best E-ATX motherboard picks, which include premium AM4/LGA1200 mobos (some of which can accommodate a hefty 128GB RAM).
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