The silicon that made it all possible
The SID chip gave the Commodore 64 the most sophisticated sound hardware of any home computer of its era — three independent synthesis voices with programmable filters that composers have been exploiting for four decades.
The NES audio chip provided five sound channels in a package on the same die as the CPU, enabling composers to produce music of unexpected range within tight constraints. Koji Kondo and Hirokazu Tanaka built iconic soundtracks on this hardware.
Sony's SPC700 audio chip gave the SNES eight voices of sample-based synthesis, enabling composers to approach near-orchestral quality. The chip ran its own separate processor, making SNES audio an independent subsystem.
The Genesis used Yamaha's FM synthesis chip combined with a Texas Instruments PSG, creating a distinctive sound that composers like Yuzo Koshiro turned into something genuinely musical. The YM2612's warm, metallic quality defined an era.
The most important microprocessor in gaming history. The 6502's $25 retail price in 1975 made personal computing economically accessible and powered nearly every significant gaming platform of the late 1970s and early 1980s.
The 68000 was the 16/32-bit processor that powered the Amiga, Atari ST, and Sega Genesis — three platforms whose creative cultures differed dramatically despite sharing identical central processing. Its clean instruction set made it a favourite for game development.
The Z80 powered the ZX Spectrum and, in modified form, inspired the Game Boy's CPU — two of gaming's most culturally significant platforms — as well as the Sega Master System and Game Gear. Federico Faggin's design was an enhanced Intel 8080 that became the 8-bit era's workhorse.
The Super FX was a co-processor embedded in SNES cartridges that enabled real-time 3D polygon rendering — something the SNES itself could not do. Star Fox (1993) demonstrated it was possible to play a 3D shooter on 16-bit hardware.
The PlayStation's dual-chip graphics system — the GTE for 3D geometry processing and the GPU for rendering — defined the fifth console generation's visual capabilities and established texture-mapped polygon rendering as the new gaming standard.
The Neo Geo's sprite controller was the most powerful 2D hardware of the early 1990s — supporting 380 simultaneous sprites at any size, enabling the character detail and animation frame counts that made SNK's fighting games the gold standard for years.
The Saturn's dual VDP architecture — VDP1 for sprites and polygons, VDP2 for backgrounds — was designed for 2D sprite performance at a moment when the market moved to 3D. Its 2D capabilities were extraordinary; its 3D capabilities were its weakness.
Yamaha's FM synthesis chips powered PC gaming audio through the late 1980s and 1990s. The OPL2's 9-channel FM synthesis and OPL3's 18-channel extension defined how DOS games sounded for a decade.
The custom SGI-designed chip that handled all of the Nintendo 64's graphics and audio, splitting the work between a programmable signal processor and a display processor to deliver console 3D that rivalled the workstations of its day.
The custom 8-bit processor at the core of the Game Boy — a hybrid of the Intel 8080 and Zilog Z80 that powered the best-selling handheld of its era on a modest clock speed and a famously frugal power budget.
The dedicated graphics chip of the NES, whose tile-and-sprite architecture and clever, memory-efficient design produced the console's distinctive look and enabled smooth scrolling that outclassed most home hardware of the early 1980s.
A graphics chip with no frame buffer — it holds a single scanline at a time, forcing the CPU to rewrite its registers in the gap between lines. Programmers called it "racing the beam".
Three custom chips with names like a family, and a coprocessor that executes an instruction stream synchronised to the electron beam — the reason Amiga demos looked impossible.
Six instruction pipelines across three processors, manual DMA, hand-written vector microcode, and no compiler on earth able to exploit it. The most powerful console CPU of its generation and the most hated.
A Konami cartridge chip that added three extra sound channels to the Famicom, giving the Japanese Castlevania III a richer score than the Famicom could otherwise produce — audio the American NES version could not reproduce.
A math coprocessor tucked into SNES cartridges to do the 3D calculations the console's CPU could not — the chip that made the pseudo-3D perspective of Pilotwings and Super Mario Kart run smoothly.
Atari's multi-purpose chip that generated four voices of sound while also reading paddle controllers and keyboards — the audio of the Atari 8-bit computers and of arcade classics like Centipede and Gauntlet.
The SNES's main processor: a 65C816 — the 16-bit descendant of the 6502 — wrapped with DMA, multiply/divide hardware and controller logic. Its modest clock is why so many SNES games slow down.
The graphics chip of the Commodore 64: sixteen fixed colours, eight hardware sprites and raster interrupts — the feature that let programmers split the screen and multiply those sprites far beyond eight.
A video co-processor with its own instruction set. ANTIC read a "display list" program every frame, letting Atari 8-bit games mix graphics modes, scroll finely and change the screen mid-frame years before most rivals.
A 33.8688 MHz MIPS RISC processor paired with a dedicated geometry co-processor that did the 3D maths. The GTE is the reason the PlayStation could push hundreds of thousands of polygons a second in 1994.
A 1979 video chip that popularised hardware sprites and became one of the most widely shared graphics designs of the 8-bit era — the ColecoVision, MSX and SG-1000 all used it, and Sega's Master System chip grew from it.
A second, three-times-faster 65C816 processor built into Super NES cartridges from 1995. It powered 35 games, including Super Mario RPG and Kirby Super Star.
The MSX2's video chip: the successor to the TMS9918, with a 512-colour palette, a 256-colour mode, 128 KB of video RAM and hardware drawing commands — the graphics behind the MSX2 versions of Metal Gear and many other Konami games.
The video chip that gave the PC Engine its arcade-quality 2D: 64 hardware sprites, up to 16 on a line, designed by the game developer Hudson Soft rather than a chip company.