AMD Adrenalin 26.10.1 Brings FSR 4.1 to the Radeon RX 6000 Series, Months Ahead of Schedule

Radeon RX 6000 owners were told to wait until early 2027 for AMD’s machine-learning upscaler. They got it in October instead.

AMD Software: Adrenalin Edition 26.10.1, released October 20, adds FSR Upscaling 4.1 support for:

• Discrete cards: the Radeon RX 6000 Series.
• APUs: Ryzen AI Max 300 and 400 Series, and Ryzen AI 9 300 and 400 Series processors.

AMD’s Jack Huynh said FSR 4.1 has been tuned and optimized across the RDNA 2 stack, from the 6900 series down to the 6400 class. He also said support is coming to Xbox Series X|S and ROG Xbox Ally handhelds. ASUS says the ROG Xbox Ally X and X20 get it as a preview update on October 23.

The driver also adds Game Ready support for Call of Duty: Modern Warfare 4, Star Wars: Galactic Racer, and Final Fantasy Resonance. It fixes stuttering in Modern Warfare 4 on RX 6000 series cards and above.

Read the known issues before you install:

• Smart Access Memory: May become disabled after installation on Windows 10, so check that setting afterward.
• War Thunder: RX 5000 users seeing driver timeouts are told to stay on 26.9.1.
• Cyberpunk 2077: Some RX 9000 cards can crash when FSR Upscaling, Anti-Lag, and in-game frame generation run while video plays on a second display. AMD suggests disabling in-game frame generation. That’s timely given Cyberpunk’s 2.5 update this week (see Post 8).

The big question is performance cost. RDNA 2 has no dedicated AI hardware, so FSR 4.1’s model runs on shader cores. When FSR 4.1 came to RDNA 3, the reviews we rounded up showed it costing Radeon RX 7000 owners about 7 percent and still being worth it. RX 6000 cards have even less matrix throughput, so expect the overhead to be larger. AMD hasn’t published a performance-cost figure. Our bet is that FSR 4.1 Performance mode beats FSR 3.1 Quality on image quality for most RX 6000 users, but that needs testing, not assumptions.

RX 7000 owners should also keep an eye on AMD’s unexplained firmware flash request. That’s separate from this driver, but worth tracking if you run mixed Radeon systems.

Credit where it’s due: AMD promised RDNA 2 owners something and delivered early. For millions of people still running an RX 6600 or 6700 XT, this is a free image quality upgrade on a card they already own.

Join the discussion in The FPS Review Forums...