Tag: vram

6 matching upgrades

Showing 6 products.

StatusProductWhat it doesCompatibilityLinks
Build itChecked Jul 27, 2026C64 V9958 Graphics Cardby Vossi

Adds a Yamaha V9958 or V9938 video processor, 128 KB of dedicated VRAM, RGB output, sprites, and enhanced graphics modes through the expansion port.

The project publishes the final 1.0 PCB, schematic, Gerbers, GAL files, documentation, and demonstration software, but no current assembled seller was verified. A build requires a V9958 or modified V9938 configuration, two compatible DRAM devices for 128 KB of interleaved VRAM, programmable logic, an EPROM or EEPROM if desired, and substantial surface-mount assembly.

Sources
  • Commodore 64 Exact model
  • Commodore 128 Exact model
Sold outChecked Jul 24, 2026CC-Booster 33by Infinity Products

Adds a driverless 32 MHz 68030 accelerator to a Macintosh Color Classic or LC II processor-direct slot.

The current product page explicitly said Out of Stock on 2026-07-24. Its mid-February 2025 next-batch note is stale.

Sources
  • Macintosh Color Classic Exact model
  • Macintosh LC II Exact model
Build itChecked Jul 24, 2026GW4405A 512 KB VRAM SIMMby Garrett's Workshop

Open 512 KB 68-pin Macintosh VRAM SIMM built with new 80 ns or faster memory.

The assembled Tindie module was out of stock on 2026-07-24 and had been sold out since May 5, 2024. Schematics and board files remain available for commercial and noncommercial use. A 512 KB module can replace a 256 KB module where the connector is compatible, but that machine will use only 256 KB; never mix capacities within one VRAM bank.

Sources
  • Macintosh 68-pin VRAM SIMMs Bus/interface
AvailableChecked Jul 27, 2026Jurassic Computing 512 KB VRAM SIMMsby Jurassic Computing

Newly made, assembled 512 KB 68-pin Macintosh VRAM SIMMs in standard and low-latency 70 ns or 70/60 ns variants.

On 2026-07-27, the blue 70 ns module was $29 with one left, while the fast 70/60 ns page was listed at $29 with a latency selector and no out-of-stock marker. The original $25 PurpleRAM version had been sold out since December 16, 2024. The seller said economy shipping from France to the United States was suspended and exposed only an expedited $50 route on the blue listing.

Sources
  • Macintosh 68-pin VRAM SIMMs Bus/interface
AvailableChecked Jul 24, 2026SMC 256 KB VRAM SIMMby Infinity Products

Two-chip 256 KB 68-pin VRAM SIMM for 68K Macintosh models that cannot use, or do not need, a 512 KB module.

The current storefront listed individual 256 KB modules without an out-of-stock marker on 2026-07-24. Chip speed can vary from 60 ns through 80 ns by production lot.

Sources
  • Macintosh 68-pin VRAM SIMMs Bus/interface
  • Macintosh LC Exact model
  • Macintosh LC II Exact model
  • Macintosh LC 475 Exact model
  • Macintosh LC 575 Exact model
  • Macintosh Color Classic Exact model
  • Macintosh Quadra 650 Exact model
  • Macintosh Quadra 800 Exact model
  • Macintosh Quadra 950 Exact model
AvailableChecked Jul 24, 2026SMC 512 KB VRAM SIMMby Infinity Products

512 KB 68-pin Macintosh VRAM module sold in a premium 60 ns design and a limited early four-chip design.

The premium 60 ns module and the final red clearance modules were listed on 2026-07-24. The purple early-production modules were sold out with no planned rerun. Modules are sold individually; systems with two sockets require two purchases.

Sources
  • Macintosh 68-pin VRAM SIMMs Bus/interface
  • Macintosh LC Exact model
  • Macintosh LC II Exact model
  • Macintosh LC 475 Exact model
  • Macintosh LC 575 Exact model
  • Macintosh Quadra 650 Exact model
  • Macintosh Quadra 800 Exact model
  • Macintosh Quadra 840AV Exact model
  • Macintosh Quadra 950 Exact model