Recommend a solid motherboard for my RX 7900 XT.

Story time: I went through this last year when I switched to an ASRock B650 Steel Legend WiFi for my editing rig. I spent weeks comparing market trends and tbh, the X670 tax is rarely worth it unless you need like 10 SATA ports. Just *make sure* you look for a board with a shifted primary PCIe slot; some brands cram the GPU too high, which is a nightmare for clearance with a massive card like the 7900 XT. Quick tip: double-check that the board has at least 8-layer PCB for better signal stability during long renders. gl!

yo, congrats on the new card!! honestly, i totally get being cautious about the price tags on those x670 boards... some are like actually insane lol. for your 7900 xt and that 7800x3d, i would suggest looking at the Gigabyte B650 AORUS ELITE AX. it's usually around $200-$220 which saves u a ton of cash compared to the high-end stuff, but it still has those beefy VRMs u want for video editing and stability. plus, it has a PCIe 5.0 M.2 slot for future-proofing your storage!

i kinda had a similar issue with clearance on an older build where my gpu blocked everything, but this board has the first M.2 slot positioned high up so it wont get smothered by that triple-slot beast. just watch out cuz the bios can be a bit finicky at first—make sure to update it right away for the best ram stability. basically, its a solid mid-range pick that doesnt feel cheap. good luck!

Seconding the recommendation above! Honestly, i've tried many boards over the years and for a 7800X3D, the ASUS TUF Gaming B650-PLUS WiFi is basically the sweet spot for stability. In my experience, its VRMs are overkill and wont throttle even during long video renders. Just double-check your clearance... some of those triple-slot 7900 XTs are massive and might block the lower SATA ports if youre not careful. Plus, it has that PCIe 5.0 M.2 slot you wanted for future-proofing. gl!!

Sooo first off, congrats on the RX 7900 XT!! Honestly, that card is an absolute beast for 1440p or even 4K gaming, and pairing it with a 7800X3D is basically the ultimate 'Team Red' dream build right now. I've been building PCs for over 15 years, and I totally get the anxiety about motherboard layouts—I've literally been through the nightmare of having a massive GPU block every single SATA port and even a CMOS battery before. It's the worst!!

For your budget, I'd highkey recommend sticking to the B650E or X670E chipset. Since you mentioned wanting PCIe 5.0 for the M.2 to future-proof, that 'E' (Extreme) designation is actually what you need to look for. In my current setup, I went with a mid-range X670E board from one of the big brands like ASUS or ASRock, and it’s been amazing. The VRMs stay super cool even during long video editing sessions, which is basically what you're looking for.

I really think you dont need to spend $600 lol. The $250-$350 range is the sweet spot where you get those chunky heatsinks and better PCB layers without the 'enthusiast tax.' Most of these boards now have the primary M.2 slot way above the GPU slot specifically so you don't have to take the whole card out just to swap a drive. Plus, most modern high-end B650/X670 boards have right-angled SATA ports now, so clearance shouldn't be an issue even with a triple-slot monster! Just make sure the BIOS is updated for the X3D chip and you'll be golden. gl with the build!! 👍

Seconding the recommendation above regarding B650 being the sweet spot! Honestly, i've seen so many people overspend on X670 for features they never use... but since you care about safety and long-term stability for video work, I gotta suggest the MSI MAG B650 Tomahawk WiFi.

I've used this board in a few builds and the VRM layout is seriously beefy, so it wont overheat during long renders. Plus, the slot placement is great—it keeps that massive 7900 XT away from the SATA ports so you wont snap anything! Just make sure to update the BIOS immediately for the best 7800X3D stability. gl!!

I totally agree with the others that B650 is the play here, but since you mentioned stability for video editing and wanting that PCIe 5.0 M.2 slot, I really think you should look at the ASRock B650E Taichi Lite. I've been running one for months and it's basically a flagship board in disguise. The reason I suggest this over the standard B650s is that it's a B650E (Extreme) board, so you get PCIe 5.0 for both your primary GPU slot and the M.2, which is great for future-proofing. For your editing work, the VRMs on this thing are absolute monsters. It uses a 24-phase power design that stays incredibly cool even when the 7800X3D is pinned during a long export. Basically, you get the guts of a $500 board without all the expensive plastic covers. Layout-wise, it's an E-ATX board, so it's a bit wider than usual. Just make sure your case can handle the extra width. The primary PCIe slot is positioned well so it shouldn't crowd your CPU cooler, and the SATA ports are angled 90 degrees so your massive 7900 XT won't block them. It's easily the best bang for your buck if you want high-end stability and every feature you actually need.

Nice choice on the card! Honestly, i went through the same struggle last year when i realized my new GPU was basically a brick that covered every useful header on my old board. It really makes you rethink the whole layout before you buy... i actually had to return a board once because the shroud was so thick it wouldnt let the card click into the slot properly. To get a better idea of what might fit, which specific model of the 7900 XT did you end up picking? Some of those AIB cards are absolute units compared to the reference design, which changes the clearance math quite a bit. Also, are you planning on running multiple SATA SSDs, or are you strictly sticking to M.2 for your editing workflow? Knowing how much physical cabling you will have tucked behind the card might help figure out which layouts are a no-go for your build.

^ This. Also, B650E is 100% the way to go if you want that 5.0 M.2 slot and general longevity. Honestly, if you want something that handles that 7900 XT without blocking half your board, check out the ASUS ROG Strix B650E-F Gaming WiFi. The primary PCIe slot is spaced out enough so even a thick triple-slot card wont suffocate your headers or SATA ports. Its got 12+2+1 power stages which are rock solid for the 7800X3D, especially when youre rendering video and pushing the CPU... everything just stays cool. Most people overspend on X670 but this specific board gives you that high-end feel and stability for around $260. Its basically a set it and forget it kind of board for anyone doing heavy mixed-use tasks.

Regarding what #3 said about "Story time: I went through this last year..." - those clearance issues are no joke. In my experience over the years, I've found that layout is just as vital as VRM quality when you're working with massive GPUs. If you're looking to save some money but still want that PCIe 5.0 future-proofing, I'd suggest looking at the ASRock B650E PG Riptide WiFi. It's a very methodical board design that gives you the extreme chipset features without the unnecessary price hike. Another solid option for stability during video work is the MSI MPG B650 Edge WiFi. I've used this in several professional-leaning builds and the power delivery is rock solid. It also features side-mounted SATA ports which are a lifesaver when a triple-slot card is hogging all the space. Honestly, you dont need to spend $350 to get a board that handles a 7800X3D and a 7900 XT perfectly. Just stick to the B650E or X670 boards with side-angled headers and you'll be fine.