Project Zomboid on ROG Xbox Ally X20

Steam Deck Verified · faster GPUValve's ratingEstimate · low confidence, ±30%

Yes. Valve rates Project Zomboid Steam Deck Verified, and the ROG Xbox Ally X20 has a faster GPU than the Steam Deck OLED. At its native 1920×1080 we estimate ~35 fps on the high preset (range 25–46, low confidence, ±30%). 60 fps is out of reach; 40 fps works on medium. Model estimate, not measured; data updated 2026-09-24.

Estimated FPS at native 1920×1080

Preset	Native 1920×1080	Range	Rendered at 1280×800
low	59	41–77	91
medium	45	31–59	70
high	35	25–46	54
ultra	28	20–36	43

Estimate · low confidence, ±30%

Estimated FPS from our model (v0), based on the game's published requirements and relative GPU/CPU performance. Not measured. Real results vary with drivers, patches, and scenes. Values above 300 fps show as 300+. Data updated 2026-09-24.

Presets for 30 / 40 / 60 fps

30 fps at 1920×1080: high preset
40 fps at 1920×1080: medium preset
60 fps at 1920×1080: not reachable
40 fps rendered at 1280×800: ultra preset
60 fps rendered at 1280×800: medium preset

AMD graphics: use FSR in quality or balanced mode (or the system-level RSR upscaler) before dropping the preset. DLSS is not available on AMD.

Frame cap and power

Screen: 1920×1080, 120 Hz, 80 Wh battery.
Even frame caps for 120 Hz: 30, 40, 60, 120 fps. The low end of our range (25 fps) is under 30 fps, so expect drops below any cap.
TDP: not measured yet. We don't publish wattage advice until we have measured runs.

Steam Deck rating

Valve rates Project Zomboid Steam Deck Verified (tested on Steam Deck, not on the ROG Xbox Ally X20).

Project Zomboid on other handhelds (high preset, native resolution)

Handheld	Screen	FPS at native	FPS at 1280×800	Verdict
MSI Claw 8 EX AI+	1920×1200	44	73	Steam Deck Verified · faster GPU
ROG Xbox Ally X	1920×1080	35	54	Steam Deck Verified · faster GPU
ROG Xbox Ally X20	1920×1080	35	54	Steam Deck Verified · faster GPU
Legion Go 2	1920×1200	31	51	Steam Deck Verified · faster GPU
MSI Claw 8 AI+	1920×1200	31	51	Steam Deck Verified · faster GPU
MSI Claw A8	1920×1200	31	51	Steam Deck Verified · faster GPU
MSI Claw 7 AI+	1920×1080	32	50	Steam Deck Verified · faster GPU
ROG Ally X	1920×1080	30	46	Steam Deck Verified · faster GPU
Legion Go	2560×1600	18	42	Steam Deck Verified · faster GPU
ROG Ally (Ryzen Z1 Extreme)	1920×1080	27	42	Steam Deck Verified · faster GPU
Legion Go S (Ryzen Z1 Extreme)	1920×1200	25	42	Steam Deck Verified · faster GPU
Legion Go 2 (Ryzen Z2)	1920×1200	25	42	Steam Deck Verified · faster GPU
Steam Deck OLED	1280×800	37	37	Steam Deck Verified
Steam Deck LCD	1280×800	34	34	Steam Deck Verified
ROG Xbox Ally	1920×1080	21	33	Below minimum
Legion Go S	1920×1200	20	33	Below minimum
MSI Claw A1M	1920×1080	21	33	Below minimum
ROG Ally (Ryzen Z1)	1920×1080	16	25	Below minimum

Stronger handheld for 60 fps: MSI Claw 8 EX AI+, ~73 fps at 1280×800 high vs 54 on the ROG Xbox Ally X20 (est.).

Native = each device's own screen resolution; 1280×800 compares GPUs at the same render resolution. A faster handheld is the upgrade path here; desktop cards don't apply.