Which is better for a multi-GPU server?

The ASRock Rack ROMED8-2T. It gives six full-speed PCIe 4.0 x16 links, which owners single out as its main strength. The Supermicro spends lanes on onboard SAS and 10G LAN instead.

Which has more memory capacity?

The Supermicro H12SSL-CT. It supports up to 2TB of registered ECC DDR4 in 8 slots. The ASRock Rack ROMED8-2T lists a 256 GB maximum.

Do I need a network card with either board?

Only with the ASRock. The Supermicro has dual 10GBase-T LAN on board. The ASRock has no 10G networking listed, so plan on an add-in card.

Which is easier to set up?

The Supermicro has the stronger owner record, at 4.8 out of 5 from 91 ratings. ASRock owners say the BIOS menu is overcomplicated and note strange default graphics behavior.

Is the Supermicro worth stepping up to over the ASRock?

Yes if you want built-in 10G networking, SAS3 storage and room for 2TB of memory. Stay with the ASRock if GPU slot count matters more than onboard I/O.

Do both support the same CPUs?

Both use Socket SP3 for AMD EPYC and support up to 64 cores. The Supermicro specifies EPYC 7003 and 7002 series.

ASRock Rack ROMED8-2T vs Supermicro H12SSL-CT Server Motherboard

Buy the Supermicro H12SSL-CT for a general EPYC server build. It adds dual 10GBase-T networking and an onboard Broadcom 3008 SAS3 controller, and it supports up to 2TB of registered ECC DDR4 across its 8 slots. The ASRock Rack ROMED8-2T is the pick when you need many full-speed PCIe 4.0 x16 slots for GPUs or accelerators. Owners of the ASRock praise the six x16 lanes but call its BIOS menu overcomplicated. The Supermicro carries a 4.8 out of 5 rating from 91 ratings.

Choose the ASRock Rack ROMED8-2T if you are building a GPU or accelerator host that needs several full-speed PCIe 4.0 x16 slots.
Choose the Supermicro H12SSL-CT if you want onboard 10G networking and SAS3 storage without adding expansion cards.

Prices

ASRock Rack ROMED8-2T: $628.00 at DirectDial (checked today)
Supermicro H12SSL-CT Server Motherboard: $1,258.87 at Neobits.com (checked today)
Difference: the ASRock Rack ROMED8-2T is $630.87 cheaper than the Supermicro H12SSL-CT Server Motherboard today

	ASRock Rack ROMED8-2T	Supermicro H12SSL-CT Server Motherboard
PCIe 4.0 x16 slots	Six full-speed x16 links, per owner reports	Fewer full-speed x16 slots; more lanes go to onboard SAS and LAN
Maximum memory	256 GB across 8 DDR4 slots	Up to 2TB registered ECC DDR4 across 8 slots
Onboard networking	No 10G LAN listed; add a card	Dual 10GBase-T via Broadcom BCM57416
Storage controller	No onboard SAS; SATA and NVMe through chipset and slots	Broadcom 3008 SAS3 12 Gbps plus 8 SATA3 ports
CPU support	EPYC on Socket SP3 (LGA-4094), up to 64 cores	EPYC 7003/7002 on Socket SP3, up to 64 cores
BMC graphics	ASPEED AST2500 with 512 MB DDR4	ASPEED AST2500 BMC graphics
BIOS and setup	Owners call the BIOS menu overcomplicated and note odd graphics default behavior	Rated 4.8 out of 5 from 91 ratings
Form factor	ATX	ATX, 12 x 9.6 in

Spec	ASRock Rack ROMED8-2T	Supermicro H12SSL-CT Server Motherboard
GPU Manufacturer	ASPEED	ASPEED
GPU Model	AST2500	AST2500
Motherboard Socket Type	Socket LGA-4094	Socket SP3
Motherboard Chipset	Soc	System on Chip
Motherboard Form Factor	ATX	ATX
Motherboard Model	ROMED8-2T	H12SSL-CT
Form Factor	ATX	ATX
Manufacturer	ASRock	Supermicro Computer, Inc, ASPEED, Broadcom
RAM Type	DDR4 SDRAM	DDR4 SDRAM
RAM Maximum Capacity	256 GB	2 TB
RAM Speed	3200 MHz	3200 MHz
RAM Number Of Slots	8	8

Spec	ASRock Rack ROMED8-2T	Supermicro H12SSL-CT Server Motherboard
Socket Type	Socket LGA-4094	Socket SP3
CPU Compatibility	EPYC, AMD	EPYC, AMD
Motherboard Compatibility	ATX	ATX
Number Of Cores	64-cores	Up to 64 Cores
Integrated Graphics	Yes	Yes
GPU Type	Integrated	Integrated (ASPEED AST2500 BMC graphics)
Memory Slots	8	8 DIMM slots
Memory Type	DDR4	DDR4 3200 MHz Registered ECC, 288-pin gold-plat…
GPU Video Memory Capacity	512 MB	—

ASRock Rack ROMED8-2T vs Supermicro H12SSL-CT Server Motherboard

Prices

ASRock Rack ROMED8-2T vs Supermicro H12SSL-CT Server Motherboard

Prices

Supermicro H12SSL-CT Server Motherboard

What separates them

Price history

Prices at every store