Category
Processors
Every processors record in the RetroFlops catalog, by name.
Processors in the catalog
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Acorn Computers · 1986
Acorn ARM2
The three-micrometer ARM2 at the start of the ARM lineage.
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AMD · 2013
AMD Jaguar
The Microsoft Xbox One main processor.
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AMD · 2020
AMD Zen 2
The Microsoft Xbox Series X main processor.
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AMD · 2022
AMD Zen 2
The Valve Steam Deck main processor.
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MIT Instrumentation Laboratory / Raytheon · 1966
Apollo Guidance Computer Block II processor
A one's-complement fixed-point processor built entirely from a single type of integrated-circuit NOR gate. Its 15 bit word carries a sixteenth parity bit, and every instruction lasts a whole number of 11.7 µs memory cycles.
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Apple · 2020
Apple iPhone 12 CPU
The processor section of the Apple iPhone 12 system-on-chip.
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Apple · 2023
Apple iPhone 15 Pro CPU
The processor section of the Apple iPhone 15 Pro system-on-chip.
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Apple · 2025
Apple iPhone 17 CPU
The processor section of the Apple A19 system-on-chip in iPhone 17.
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Apple · 2025
Apple iPhone 17 Pro CPU
The processor section of the Apple iPhone 17 Pro system-on-chip.
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Apple · 2009
Apple iPhone 3GS CPU
The processor section of the Apple iPhone 3GS system-on-chip.
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Apple · 2010
Apple iPhone 4 CPU
The processor section of the Apple iPhone 4 system-on-chip.
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Apple · 2013
Apple iPhone 5s CPU
The processor section of the Apple iPhone 5s system-on-chip.
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Apple · 2015
Apple iPhone 6s CPU
The processor section of the Apple iPhone 6s system-on-chip.
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Samsung / Apple (system) · 2007
Apple iPhone system-on-chip (CPU section)
One ARM1176JZF-S core running at 412 MHz; the core could reach 667 MHz, and Apple set it lower because the machine it sits in runs on a battery.
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Apple · 2017
Apple iPhone X CPU
The processor section of the Apple iPhone X system-on-chip.
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Apple · November 2020
Apple M1
16 000 000 000 transistors on a 5 nm die carrying processor cores, graphics cores, a neural engine and a memory controller. Apple's description states no clock frequency.
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Apple · November 2024
Apple M4 CPU
Four performance and six efficiency cores in Apple’s M4.
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ARM
ARM7TDMI
The Game Boy Advance main processor.
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ARM
ARM946E-S
The Nintendo DS's main ARM9 processor.
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Broadcom · September 2023
Broadcom BCM2712
The 2.4 GHz quad-core processor in Raspberry Pi 5.
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Sony Computer Entertainment / IBM / Toshiba · 2005
Cell Broadband Engine
A PowerPC core surrounded by eight SPE vector co-processors, of which the PlayStation 3 uses seven. Sony's specification counts the eighth as redundancy.
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Sony Computer Entertainment / Toshiba · March 1999
Emotion Engine
Sony and Toshiba's 128 bit CPU for the PlayStation 2: a superscalar MIPS core with 16 kB of instruction cache, 8 kB of data cache and 16 kB of scratchpad, flanked by two vector units carrying nine floating-point multiply-add units between them.
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Hitachi · 1994
Hitachi SH-2
The Sega Saturn main processor.
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Hitachi · 1998
Hitachi SH-4
A superscalar 32 bit RISC core with 16 bit instructions, a five-stage pipeline and an IEEE 754 floating-point unit doing single and double precision.
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Hudson Soft
Hudson Soft HuC6280
The PC Engine main processor.
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IBM · 2006
IBM Broadway
The Nintendo Wii main processor.
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IBM · 2012
IBM Espresso
The Nintendo Wii U main processor.
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IBM · 2001
IBM Gekko
The Nintendo GameCube main processor.
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IBM · 2005
IBM Xenon
The Microsoft Xbox 360 main processor.
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Intel · February 1982
Intel 80286
The protected-mode 16 bit successor to the 8086, normally paired with an optional 80287 floating-point coprocessor.
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Intel · October 1985
Intel 80386DX
The full-bus 32 bit 80386, adding 32 bit registers, paging and a 32 bit external data path to x86 PCs.
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Intel · April 1989
Intel 80486DX
A 32 bit x86 processor integrating an x87 floating-point unit and an on-chip cache in the DX variant.
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Intel · June 1978
Intel 8086
The original 16 bit x86 processor, with a 20 bit address bus and a separate 8087 coprocessor option.
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Intel · 1979
Intel 8088
Sixteen-bit x86 core with an eight-bit external data bus.
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Intel · July 2006
Intel Core 2 Duo E6600
A 2-core 64 bit Core 2 desktop processor rated at 2.40 GHz, chosen as the first Core-era desktop point in the line.
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Intel · January 2011
Intel Core i7-2600K
A 4-core, 8-thread Sandy Bridge desktop processor with a 3.40 GHz base frequency and 3.80 GHz Turbo Boost maximum.
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Intel · October 2023
Intel Core i9-14900K
An eight-performance-core plus sixteen-efficiency-core desktop processor, with 125 W processor base power and up to 253 W maximum turbo power.
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Intel · March 1993
Intel Pentium
The first Intel processor sold as Pentium, a superscalar 32 bit x86 design with integrated floating-point hardware.
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Intel · November 2000
Intel Pentium 4
Intel's NetBurst desktop processor, selected here in its 3.0 GHz single-core configuration.
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Intel · May 1997
Intel Pentium II
The P6-generation successor to Pentium, packaged in a Slot 1 cartridge with external level-two cache.
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Intel · 2001
Intel Pentium III
The Microsoft Xbox main processor.
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MIPS Technologies · 1996
MIPS R10000
A four-way superscalar, out-of-order 64 bit processor with an on-die floating-point unit. It is the first machine in this catalog where asking for a floating-point rate makes sense at all.
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NEC / MIPS Technologies · 1996
MIPS R4300 (Nintendo 64 CPU)
The console's general-purpose processor, running the game as a collection of threads and generating the task lists the Reality Coprocessor executes.
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MOS Technology · 1975
MOS Technology 6502
Eight-bit 6502 used as the Apple II's main processor.
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MOS Technology · 1975
MOS Technology 6502
Eight-bit processor whose clock follows the Atari 800's television standard.
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MOS Technology · 1975
MOS Technology 6502
A 6502-compatible main processor used in the BBC Micro Model B.
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MOS Technology
MOS Technology 6507
Cost-reduced 6502 with a thirteen-bit address bus.
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MOS Technology · 1982
MOS Technology 6510
A 6502 with an on-chip eight-bit bidirectional I/O port. Internally identical to the 6502 for software compatibility; the extra port is what lets the Commodore 64 bank ROM and I/O in and out of a 16 bit address space.
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Motorola · 1979
Motorola 68000
Eight-megahertz 68000 main processor in the Atari 520ST.
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Motorola · 1979
Motorola 68000
The original Macintosh's 68000 main processor.
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Motorola
Motorola 68000
The Mega Drive's main processor; its audio Z80 is modeled as a separate role in the prose, not a summed clock.
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Motorola
Motorola 68000
The Neo Geo AES main processor.
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Motorola · 1979
Motorola MC68000
A processor with 32 bit internal registers and a narrower data bus and ALU. It powered the Amiga line and many other machines of its era.
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Motorola · 1990
Motorola MC68040
The full 68040 processor fitted to the standard Amiga 4000 module.
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Motorola · 1994
Motorola MC68060
A 68060 fitted through the CYBERSTORM accelerator in an Amiga 4000.
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Motorola · 1991
Motorola MC68EC020
The cost-reduced 68020: a full 32 bit data path with the address bus cut to 24 bit and the memory management unit left out. The processor of the Amiga 1200.
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NVIDIA · 2025
NVIDIA T239 CPU
The eight-core Arm processor section of the Switch 2's custom NVIDIA system-on-chip.
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NVIDIA · 2017
NVIDIA Tegra X1 CPU
The Nintendo Switch main processor.
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Sony Computer Entertainment · March 1999
PlayStation 2 I/O Processor
The original PlayStation's 32 bit CPU core, reused as the PlayStation 2's input/output processor and as the machine it becomes when running a PlayStation disc.
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Sony Computer Entertainment / AMD · 2013
PlayStation 4 custom processor (CPU section)
Eight x86-64 cores sit on the same die as the graphics processor, making this the first console here to run the instruction set of the desktop machines it competes with.
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Sony Interactive Entertainment / AMD · 2020
PlayStation 5 custom processor (CPU section)
Eight x86-64 cores with 16 threads, and no fixed frequency: Sony specifies a variable clock and a ceiling of 3.5 GHz.
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Sony Computer Entertainment / LSI Logic · 1994
PlayStation CPU (customized MIPS R3000A)
A 32 bit RISC processor based on the R3000A, customized for the console: no memory management unit, and the GTE geometry coprocessor sitting alongside the integer core.
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Ricoh
Ricoh 2A03
The NES CPU and audio processor.
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Ricoh
Ricoh 5A22
The Super Nintendo CPU, whose clock varies with memory area.
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IBM Federal Systems Division · 1966
Saturn Launch Vehicle Digital Computer
A stored-program, general-purpose, serial, fixed-point binary computer built from triple-redundant logic, with ultrasonic glass delay lines standing in for arithmetic registers. It flew the Saturn launch vehicle from lift-off to orbit.
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Sharp
Sharp LR35902
The original Game Boy's CPU.
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Zilog
Zilog Z80
The Master System main processor.
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Zilog · 1976
Zilog Z80A
Four-megahertz main processor in the Amstrad CPC 464.
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Zilog · 1976
Zilog Z80A
The standard eight-bit MSX main processor.
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Zilog · 1976
Zilog Z80A
The ZX Spectrum's eight-bit main processor.