Xbox Family Tree: Every Console from 2001 to 2024

Far more than just Xbox and Xbox 360.

Generation 1 (2001–2005)

• Xbox (2001) — 733 MHz Pentium III, NV2A, 8 GB HDD, broadband only.

Generation 2 (2005–2013)

• Xbox 360 (2005) — PowerPC tri-core, Xenos GPU, 512 MB unified.
• Xbox 360 S (2010) — Slim, 250/320 GB internal, built-in Wi-Fi, quieter.
• Xbox 360 E (2013) — Final redesign, X1-style shell, same S internals.

Generation 3 (2013–2020)

• Xbox One (2013) — Jaguar 8-core, DDR3 + ESRAM, Kinect 2 bundled (early).
• Xbox One S (2016) — 40% smaller, 4K Blu-ray, HDR, IR blaster.
• Xbox One X (2017) — 6 TFLOPS, 12 GB GDDR5, native 4K gaming.

Generation 4 (2020–Present)

• Xbox Series X (2020) — Zen 2 8C/16T, 12 TFLOPS RDNA 2, 1 TB NVMe, 4K/120, VRR.
• Xbox Series S (2020) — Same CPU, 4 TFLOPS, 512 GB SSD, 1440p target, digital-only.

Handheld / Cloud

• Xbox Cloud Gaming (Beta 2020 → Live 2021) — Stream Game Pass to phone, tablet, PC, TV, Meta Quest.
• Project "Keenan" / "Ella" (Rumored Handheld) — Not announced.

Total distinct hardware SKUs: 9 major consoles + Cloud.