Choosing among CPUs, Motherboards & Memory parts is less about picking a board with the longest feature list and more about avoiding a platform mismatch. These four choices split across Intel 8th/9th generation, AMD AM4, AMD AM5, and a Dell XPS 8940-specific route. Start with the processor or desktop you already have in mind; the socket and memory direction should make the first cut.
Quick take
The listed prices span $38.41 from lowest to highest, so platform fit should carry more weight than a small movement in cost. The MSI Z390-A PRO is the Intel 8th/9th-generation route, while the MSI MAG B550 Tomahawk MAX WiFi is built around AMD AM4. The AORUS X870E PRO ICE moves to AMD AM5 and DDR5, and the Dell board is identified specifically for the XPS 8940. The AORUS also carries an open-box condition, which is a separate consideration from socket choice.
Listed-price comparison
| Motherboard | Listed price | Relative listed price |
|---|---|---|
| Dell XPS 8940 motherboard | USD 161.58 | |
| MSI MAG B550 Tomahawk MAX WiFi | USD 167.99 | |
| MSI Z390-A PRO | USD 172.21 | |
| AORUS X870E PRO ICE | USD 199.99 |
Decision matrix
- Keeping an Intel 8th- or 9th-generation processor: The MSI Z390-A PRO names that processor focus and DDR4 support.
- Planning an AMD AM5 and DDR5 build: The AORUS X870E PRO ICE is the board in this group with that platform pairing.
- Working from an AMD AM4 setup: The MSI MAG B550 Tomahawk MAX WiFi is the corresponding AM4 and DDR4 choice, with listed Ryzen-series support.
- Replacing a motherboard in a Dell XPS 8940: The Dell XPS 8940 board is the directly identified match, including 10th- and 11th-generation Intel Core compatibility.
Product notes
MSI Z390-A PRO Motherboard LGA 1151
The MSI Z390-A PRO centers on an LGA 1151 Intel route, with ATX, M.2, and USB 3.1 called out in its name. It makes sense when the processor plan already aligns with the stated Intel generation focus and you want those named connectivity elements in the same board. Its limitation is equally clear: the LGA 1151 and 8th/9th-generation Intel focus narrows the intended direction compared with the AMD-oriented alternatives here. This is the sensible pick for preserving that specific Intel path, not for shifting to the newer AMD platform represented by the AORUS.
AORUS X870E PRO ICE AM5 DDR5 Gaming Motherboard
AORUS X870E PRO ICE combines an AMD AM5 ATX layout with DDR5, M.2 expansion, on-board audio, HDMI, Ethernet, Wi-Fi 7, and AMD EXPO. That collection gives it a distinct role for an AMD build where the white-themed design is part of the plan rather than an afterthought. The limitation is its open-box condition, plus the fact that it is the highest-listed-price choice in this comparison. Choose this one for its particular AM5 feature set and appearance; it is not the natural match for an existing AM4, LGA 1151, or Dell XPS 8940 route.
MSI MAG B550 Tomahawk MAX WiFi Gaming Motherboard
The MSI MAG B550 Tomahawk MAX WiFi is framed around AMD AM4 and DDR4 in an ATX format. It also names PCIe 4.0, an M.2 solution, 2.5G LAN, and Wi-Fi 6E, giving shoppers several specific connectivity and expansion details to weigh. Its listed processor support covers AMD Ryzen 5000 Series, 5000 G-Series, 4000G-Series, and 3000 Series processors. The limiting factor is the same platform direction that makes it useful: it is an AM4 and DDR4 board, so it belongs with that established Ryzen path rather than the AM5 and DDR5 direction of the AORUS.
Dell XPS 8940 Desktop Motherboard K3CM7 427JK
The Dell XPS 8940 motherboard is the focused replacement-oriented choice. Its stated compatibility identifies the Dell XPS 8940 alongside 10th- and 11th-generation Intel Core processors and the LGA1200 socket, while DDR4 is named in the title. It also lists RJ-45, USB 3.1, USB 2.0, USB Type-C, M.2, SATA, PCIe, and headset ports. Choose it when the goal is a motherboard for that named Dell desktop. Its key limitation is that same specificity: the XPS 8940 identification makes it a more targeted option than the broadly platform-framed Intel and AMD boards.
Final recommendation by use case
Choose the MSI Z390-A PRO when an LGA 1151 Intel path is already established. Pick the Dell XPS 8940 motherboard for the named Dell replacement use case. The MSI MAG B550 Tomahawk MAX WiFi fits shoppers following the listed Ryzen-series support, while the AORUS X870E PRO ICE is the clear fit for a white-themed AMD build with its stated AM5-focused feature mix. The price gap is only $38.41 across the group, so the named platform should decide the purchase before price does.
