AMD iGPU in trouble: now slower than B390 in both Windows and Linux tests
Following tests on Windows, clearly showing Intel B-Series performance advantage over AMD iGPU, Phoronix tests also show the same trend in Linux gaming.
While it is not clear if we are going to see a spawn of new Intel-based gaming handhelds powered by SteamOS, those who prefer Linux experience and low-power graphics, should also know that Arc B-Series from Panther Lake is already showing pretty good results.
A new review from Phoronix reports that Intel’s Panther Lake integrated graphics branded as Arc B390 can outperform AMD’s Ryzen AI 9 HX 370 iGPU in Linux gaming and graphics benchmarks, once the laptop is configured to use a higher performance profile.
The test system used an Intel Core Ultra X7 358H laptop with the Arc B390 iGPU. On a geometric mean basis across the tested set, the Core Ultra X7 358H configuration labeled “MSI Prestige 14 – Perf” landed at 1.23x the overall performance of the Ryzen AI 9 HX 370 laptop in the same comparison group. Phoronix also reports 1.53x performance versus a Core Ultra 7 258V Lunar Lake laptop, and 1.72x versus a Core Ultra 7 155H Meteor Lake laptop.
Source: Phoronix
Phoronix says Intel recommended using a “performance” profile and notes that the laptop’s default balanced configuration was set lower than Intel’s expectations, with MSI balanced defaults described as 15W minimum and 30W maximum for that model. Reveiwer reports average CPU power use of 16.9W in the default balanced mode versus 28W with the recommended workarounds and performance profile, and it describes peak power as around 1.25x that of the Ryzen AI 9 HX 370.
That said, for Arc B390 results may vary depending on the laptop’s power limits and which performance profile is active, so early Panther Lake systems may need the right profile and updated software to hit the bigger numbers.
Source: Phoronix
