The AMD B550 Motherboard Overview: ASUS, GIGABYTE, MSI, ASRock, and Others
by Dr. Ian Cutress & Gavin Bonshor on June 16, 2020 11:00 AM ESTGIGABYTE B550M Aorus Elite
Opting for a simplistic design and functional set of features is the GIGABYTE B550M Aorus Elite which is reminiscent of its larger ATX sized counterpart, the B550 Aorus Elite. Slotting in behind the Pro models in its product stack, GIGABYTE has equipped it with two M.2 slots, four SATA ports, support for DDR4-4733 and a Realtek Gigabit Ethernet controller.
Set upon a black and grey patterned PCB, the GIGABYTE B550M Aorus Elite includes two full-length slots which operate at PCIe 4.0 x16 and PCIe 3.0 x4, with an additional PCIe 3.0 x1 slot. For storage, GIGABYTE has included two M.2 slots with one with support for PCIe 4.0 x4 drives, while the other slot runs at PCIe 3.0 x4. For SATA devices, there are four SATA ports with support for RAID 0, 1, and 10 arrays. Users can install up to 128 GB of DDR4-4733 memory across four memory slots. Compared to GIGABYTE's premium models, the B550M Aorus Elite has a more modest 5+3 phase power delivery, which draws power from a sing
The rear panel includes four USB 3.2 G1 and four USB 2.0 ports, and a PS/2 keyboard and mouse combination port. Featured is a pair of video outputs including a DVI-D and HDMI port, with three 3.5 mm audio jacks powered by a budget Realtek ALC887 audio codec, and a single RJ45 port driven by a Realtek based Gigabit Ethernet controller.
The GIGABYTE B550M Aorus Elite has no USB 3.2 G2 connectivity, nor does it feature any Type-C ports, but it is one of the cheaper B550 models with an MSRP of $109. With a Realtek Gigabit and ALC887 HD audio codec pairing, it represents an entry-level model of current times with budget the main focus, while still benefiting from PCIe 4.0 through the top full-length slot and CPU driven PCIe 4.0 x4 M.2 slot.
Facebook
Twitter
RSS
101 Comments
View All Comments
kpb321 - Tuesday, June 16, 2020 - link
I'm kinda disappointed they ended up missing the opportunity to go PCI-E 4 for the CPU to GPU link. With 2 10gbs USB ports, 2 5gbs USB ports, 10 flexible PCI-E lanes that can be NVME/ Sata ports or add on controllers on the chipset there's plenty of bandwidth there to be bottlenecked by a 4x PCI-E 3 link to the CPU. Going PCI-E 4 would make this somewhat less of a bottleneck and could support for example 2 NVME PCI-E 3.0 4X drives at full speed. The B350 more balanced in this way but sadly it was because the PCI-E off the chipset was only PCI-E 2. Hanging 16x lanes worth of things off a 4x link isn't great when they could have doubled that link bandwidth pretty easily.kpb321 - Tuesday, June 16, 2020 - link
Edit 'm kinda disappointed they ended up missing the opportunity to go PCI-E 4 for the CPU to chipset linkIrata - Tuesday, June 16, 2020 - link
That‘s X570. If you need the additional storage bandwidth, this is what you should go for.Alternatively there is the Aorus board that offers the 8x CPU plus 2x 4x PCIe 4 lanes for nVMe drives plus the PCIe 3 lanes from the chipset. That could be an alternative and eight PCIe 4 lanes for the GPU should be fine with the next gen GPU, except perhaps for the top of the line models.
On the plus side, with Ryzen you have four dedicated PCIe lanes from the CPU for nVMe (16+4+4 vs. 16+4 on Intel).
kpb321 - Tuesday, June 16, 2020 - link
The X570 goes whole hog on PCI-E 4 with PCI-4 hanging off the chipset too and it supports more PCI-E and SATA and USB devices hanging off the chipset so while the CPU to Chipset bandwidth is higher it's actually even more imbalanced between the combine possible bandwidth of devices possible off the chipset and the CPU to Chipset bandwidth.Going PCI-E 4 for just the CPU to Chipset on the B550 would have given the option to decrease that imbalance and one PCI-E 4x link shouldn't have driven the power up too high.
romrunning - Tuesday, June 16, 2020 - link
Then most people wouldn't buy X570 and get B550 instead as there wouldn't be much of a difference. That, and having less PCIe 4.0 stuff lowers the power requirements a bit.I personally held off on X570 because I knew I basically only needed the GPU and NVMe drive to be PCIe 4.0 for the most future-proof setup. I figure I'll buy new again when the new AM5 socket is released with Zen 4. Plus, some of the B550 boards have a Type-C front connector, which will go with the new ITX case I'm getting that has one on the front.
PixyMisa - Wednesday, June 17, 2020 - link
Yes, but then you need to add a separate PCIe controller on the chipset to handle just those 4 lanes. The market probably isn't big enough to make it worthwhile.Irata - Tuesday, June 16, 2020 - link
The CPU to GPU link is 16x PCIe 4.0 - that has nothing to do with the chipset.Or did you mean something else?
a5cent - Friday, June 19, 2020 - link
True, but would that not have brought back the requirement for an actively cooled chipset? That definitely contributes to cost, so it makes sense to cut that from the package.Personally, I'm happy that we've finally left PCIe 2.0 behind. Such chipsets still being sold in 2020 is horrific.
Lucky Stripes 99 - Tuesday, June 16, 2020 - link
I was hoping to build several B550 APU mITX systems this week, but the lack of a compatible APU has stopped those plans. AMD's decision regarding to use a prior generation micro-architecture for its APUs in addition to their decision regarding AM4 firmware size limits are really colliding to create a missed opportunity here. If the iGPU in the Comet Lake processors was better, I'd be picking up H460 or Q470 boards right now instead.DigitalFreak - Tuesday, June 16, 2020 - link
My understanding is that the firmware size limit wasn't created by AMD. The motherboard makers could always use firmware chips with a larger capacity. Intel doesn't have this problem since they only support one or two CPU generations per motherboard :-)