Sega Hikaru had its own Sega Custom 3D GPU composed of dual PowerVR 2 GPU chips. The Sega NAOMI had a Hitachi SH-4 CPU at 200 MHz with 56MB of RAM (568MB of RAM with GD-ROM) and a NEC-VideoLogic PowerVR2 (PVR2DC/CLX2). The Sega NAOMI Multiboard had 112 to 869MB of RAM. The CPU was 2Г— to 16Г— Hitachi SH-4 CPU at 200 MHz with the GPU being either 2Г— to 16Г— NEC-VideoLogic PowerVR 2 (PVR2DC/CLX2). The Sega Hikaru had a specific Motorola 68000 CPU just for networking. The CPU was a 2Г— Hitachi SH-4 CPU at 200 MHz and the GPU was a 2Г— NEC-VideoLogic PowerVR 2 (PVR2DC/CLX2).

PowerVR 2-based board from Spanish company. Not their early 'Gaelco 3DвЂ™ board from 1996-1998. There is also an inactive emulator for the unrelated earlier Gaelco 3D system, and MAME supports that one. The Sega NAOMI 2 had 2 PowerVR CLX2 GPUs, a PowerVR Elan chip, and 2X the graphics memory. A prototype version of an unreleased game called Jet Squadron was made on the NAOMI 2 board in 2000 but the first officially released games started in 2001.

The Sega Sammy Atomiswave, more commonly referred to as the Atomiswave, has a Hitachi SH-4 CPU at 200 MHz with itвЂ™s GPU being a PowerVR 2. Not really the same as SI ElectronicsвЂ™ вЂњAuroraвЂќ, commonly mislabelled as вЂњSega AuroraвЂќ. The Cave CV1000B had a Hitachi SH-3 at 133 MHz. Note, the вЂarcade_compat.txtвЂ™ file inside DEmulвЂ™s release archives do not have any Cave CV1000 emulation compat list, so its gamesвЂ™ status is unknown. The Cave CV1000D had a new CPU which was an ISSI IS42S32400D at 166 MHz with 128MB of RAM. DEmul is a closed-source emulator for Sega Dreamcast and arcade boards of Sega NAOMI and follow-up variants, including the NAOMI, Atomiswave, Hikaru, Gaelco, NAOMI 2, System SP (Aurora) and couple Cave CV1000 systems. Flycast is a fork from the independent reicast emulator avaliable as a standalone emulator and as a libretro core and seems to be more advanced in overall compatibility and feature levels of Dreamcast and several arcade boards emulation. It is possible that some optional hacks are used to achieve correct graphics on some compatible arcade games. Atomiswave support was initiated around November 2018. nullDC was the first independent, open-source Sega Dreamcast emulator to attempt emulation of the NAOMI arcade board. Its compatibility is unknown, so is not included in the NAOMI compatibility chart below.

Sega naomi emulator mac