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Gigabyte - B850 AORUS Pro vs Gigabyte - X870 AORUS Master

Last updated · How Mars Score works
B850 AORUS ProGIGABYTERENDER
Probe A
Gigabyte
B850 AORUS Pro
59.2/ 100C
Expansion59· 45%
I/O—· 30%
Platform—· 25%
X870 AORUS MasterGIGABYTERENDER
Probe B
Gigabyte
X870 AORUS Master
69.1/ 100B
Expansion69· 45%
I/O—· 30%
Platform—· 25%
Quick verdict

Between the B850 AORUS Pro and X870 AORUS Master, the B850 AORUS Pro comes out ahead in several specs, while the X870 AORUS Master wins on max memory and m.2 slots. Overall, the B850 AORUS Pro scores 59.2 and the X870 AORUS Master scores 69.1 on our Mars Score.

Buying advice

Which should you buy?

The X870 AORUS Master is the clear pick on raw spec strength, leading by 9.9 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.

The B850 AORUS Pro doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.

Pick the X870 AORUS Master if you care most about max memory and m.2 slots. Its strongest claims are max memory, m.2 slots.

Both ship with comparable ram slots, pcie slots, wi-fi 7, so those specs don't separate the two — focus on the differences below.

Bottom line: the X870 AORUS Master is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.

Why Gigabyte - B850 AORUS Pro wins

  • No decisive advantages.

Why Gigabyte - X870 AORUS Master wins

  • ▲Max memory — 33.33% more. 256 GB vs 192 GB.
  • ▲M.2 slots — 1.00 more. 4 vs 3.
Full readout

Spec comparison

Platform

SpecGigabyte - B850 AORUS ProGigabyte - X870 AORUS Master
SocketⓘAM5AM5
ChipsetB850X870
Form factorATXATX

Expansion

SpecGigabyte - B850 AORUS ProGigabyte - X870 AORUS Master
RAM slots44
Max memory192 GB256 GBlead
PCIe slots33
M.2 slotsⓘ34lead

I/O

SpecGigabyte - B850 AORUS ProGigabyte - X870 AORUS Master
USB ports1014lead
2.5GbE LANtruetrue
Wi-Fi 7ⓘtruetrue
Drill down

Spec-level deep dives

Socket→Chipset→Form factor→RAM slots→Max memory→PCIe slots→M.2 slots→USB ports→2.5GbE LAN→Wi-Fi 7→
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