Two devices. One clear decision.

CPU1 field

Specification	Steam Deck OLED	Series X
Processor	AMD 'Sephiroth' 6 nm APU, 4-core / 8-thread Zen 2 up to 3.5 GHz (4–15 W).	Custom AMD Zen 2 architecture, Configuration: 8 cores / 16 threads for modern game engines and multitasking. Clock Speed: Up to 3.8 GHz (3.6 GHz with SMT enabled).

GPU (Graphics)4 fields

Specification	Steam Deck OLED	Series X
AI Upscaling	AMD FSR built into SteamOS, plus in-game FSR/XeSS.	No (uses traditional dynamic resolution and software-based upscaling instead).
Advanced Ray Tracing	Supported by the RDNA 2 GPU, but rarely practical at 15 W.	Hardware-based ray tracing improves lighting, shadows, and reflections.
Compute Power	1.6 TFLOPs.	12 TFLOPs, delivering native 4K performance in many titles.
Graphics Engine	AMD Radeon RDNA 2 GPU, 8 compute units at up to 1.6 GHz.	Custom AMD RDNA 2 GPU optimized for console gaming.

GAMING OUTPUT3 fields

Specification	Steam Deck OLED	Series X
Max Resolution	7.4-inch HDR OLED at 1280 × 800 (1,000 nits peak HDR); external displays up to 4K at 120 Hz.	Up to 8K output for media and supported content.
Refresh Rate	Up to 90 Hz.	Up to 4K at 120 Hz for smooth, high-frame-rate gaming.
VRR & HDR	HDR supported on the built-in OLED; no Variable Refresh Rate.	Variable Refresh Rate, HDR10, Auto HDR, and Dolby Vision Gaming support in compatible titles.

LAUNCH DATE3 fields

Specification	Steam Deck OLED	Series X
Announced	Announcement date not recorded	Announcement date not recorded
Released	16 November 2023	10 November 2020
Status	Available	Available

MEMORY1 field

Specification	Steam Deck OLED	Series X
System Memory	16 GB LPDDR5 at 6,400 MT/s.	16 GB GDDR6 (high-speed memory shared between system and graphics). 10 GB @ 560 GB/s: Dedicated for GPU-intensive gaming tasks. 6 GB @ 336 GB/s: Reserved for system operations and background processes.

COMMUNICATION5 fields

Specification	Steam Deck OLED	Series X
Bluetooth	5.3.	No (controller supports Bluetooth LE).
Ethernet	Via the Steam Deck Dock (Gigabit) or a USB-C adapter.	Gigabit Ethernet for low-latency wired connections.
HDMI	None on the device; HDMI 2.0 via the Steam Deck Dock or a USB-C adapter.	HDMI 2.1 enables 4K 120 Hz, VRR, and advanced display features.
USB Ports	1 × USB-C 3.2 Gen 2 with DisplayPort 1.4 Alt Mode and 45 W Power Delivery.	3 × USB-A (USB 3.1 Gen 1) for controllers, external storage, and accessories. Expansion Slot: Dedicated Storage Expansion Card slot for official NVMe cards.
WLAN	Wi-Fi 6E tri-band.	Wi-Fi 5 (802.11ac) for stable wireless online gaming.

ADDITIONAL INFORMATION2 fields

Specification	Steam Deck OLED	Series X
Launch Price (USD)	$549.00 (reference only — see Price in Nigeria above for the actual retail price)	$499.99 (reference only — see Price in Nigeria above for the actual retail price)
Price in Nigeria	₦769,000 (Stored estimate)	₦700,000 (Stored estimate)

STORAGE2 fields

Specification	Steam Deck OLED	Series X
Expandable	microSD card slot (UHS-I); M.2 2230 SSD can be replaced.	Proprietary Xbox Storage Expansion Cards (1 TB or 2 TB).
Internal Storage	512 GB or 1 TB NVMe SSD.	1 TB NVMe SSD for ultra-fast load times and quick game launches.

CONTROLLER1 field

Specification	Steam Deck OLED	Series X
Controller	Built-in controls with dual trackpads, improved gyro, four back grip buttons and analog triggers.	Xbox Wireless Controller: Textured grips for better handling during long sessions. Hybrid D-pad for improved precision. Dedicated Share button for captures. Powered by AA batteries or rechargeable battery pack. USB-C port for wired play.

PERFORMANCE ENHANCEMENT2 fields

Specification	Steam Deck OLED	Series X
Backward Compatibility	Runs the Steam library on SteamOS via Proton, with the 'Deck Verified' program; Windows can be installed.	Plays thousands of Xbox One, Xbox 360, and original Xbox titles.
Game Boost	Adjustable TDP, frame-rate limiter and FSR scaling; 50 Wh battery for 3–12 hours of play.	Automatically increases frame rates in select backward-compatible titles.