Summary of "Back from the Dead: 3dfx's Unreleased Voodoo5 6000 Quad-GPU Card"

What the card is

A handmade recreation of the cancelled 3dfx Voodoo5 6000 built by Anthony (aka zxc64). The card uses authentic 3dfx VSA-100 (Napalm) silicon and custom PCBs and was assembled by hand from New Old Stock chips. The builder intentionally reproduced original-era behaviors and bugs to match authentic functionality.

Key points

Hobbyist, hand-assembled reproductions; roughly three days to assemble each card.
Multiple revisions produced by the maker: extended memory, alternate power connectors, VGA pass-through, PCI variants, etc.
Prototypes historically existed; this project recreates those boards for preservation and collection.

Hardware specifications (as reproduced)

GPUs: 4 × 166 MHz VSA-100 chips (quad-GPU, multi‑SLI style)
Interface: AGP 1.0 / 66 MHz
Memory: 16 × 16 MB SDR SDRAM = 256 MB onboard (card supports dual VBIOS modes for 128 MB or 256 MB)
Power: 6‑pin PCIe-style input on this build (historical prototypes used external barrel jack or 4‑pin Molex)
Custom features: multiple revisions with alternate connectors and pass-throughs; reproduction includes original-era bugs/artifacts

Brief 3dfx history / context

3dfx rose quickly in the late 1990s with the Voodoo product lines and the Glide API. They coined SLI (scan-line interleave) with Voodoo2.
Peak market share was roughly 73% of the gaming GPU market in late 1998 / early 1999.
Strategic mistakes contributed to their decline: acquiring board partner STB (costly/disruptive), failure to move the Rampage architecture to market, Glide’s limited adoption, and loss of partners. Financial pressure led to assets being sold to NVIDIA.
Voodoo5 6000 prototypes were among the last physical boards before 3dfx folded.

Reproduction process & engineering notes

Anthony reverse-engineered a damaged prototype, designed PCBs, ordered them, and populated them with period chips. Multiple revisions addressed improvements and adaptations.
The builder reproduced original behaviors and bugs deliberately for authenticity.
The maker preferred a physical reconstruction over software emulation to preserve the real-era experience.

Test environment and challenges

Required era-appropriate platform: AGP 1.0 motherboard + Windows 95/98 (tests used Windows 98 SE with community patches).
Main test rig: Epox 8K3A (Via KT333) + Athlon XP 2600+ to reduce CPU bottlenecks.
Backup/test rescue: Dell Dimension T600 (Pentium III) used when some boards arrived DOA.
Troubleshooting steps included:
- Desoldering/moving SMDs to reduce AGP aperture size.
- Swapping problematic cards and components.
- Addressing resource conflicts caused by the unusually high VRAM.
Drivers tested were community/third‑party builds:
- Amiga Merlin 2.9
- Raziel64 1.01.16
- Voodoo5 6000 Resource Group 1.05.04 Each driver had quirks and different performance/artifact profiles.
Overclocking was supported by 3dfx tools but was not attempted due to fragility and stability concerns.

Benchmarks / comparative results (selected)

Comparison cards used: Intel i740 (Real3D Starfighter) and NVIDIA GeForce2 GTS (32 MB), representing contemporary competitors.

Quake III Arena (OpenGL + Glide wrapper)
- Quad‑GPU Voodoo5 6000 (with correct drivers) outperformed the GeForce2 by ~42% in the tested run.
- 256 MB mode gave ~4% uplift over 128 MB mode.
- Single‑chip mode performed much worse.
Unreal Tournament (native Glide)
- Voodoo5 6000 had a strong advantage: depending on driver, it outpaced the GeForce2 by ~69–77% and was ~170% faster than the i740 in these tests.
3DMark99 (DirectX benchmark)
- DirectX favored the GeForce2 relatively more; with the Amiga Merlin driver the Voodoo still scored ahead in one result (~53% advantage).
- The 256 MB mode improved some texture tests, though some texture corruption suggested memory or software issues.

Overall takeaway: the Voodoo5 6000 shows large advantages in Glide-native workloads and varied performance in DirectX/OpenGL depending on drivers, CPU/motherboard bottlenecks, and VRAM detection. The reproduction faithfully matched many original-generation issues.

Conclusions and practical notes

The handmade Voodoo5 6000 is a working, historically faithful artifact using real-era silicon — valuable for collectors and preservationists.
Had the Voodoo5 6000 been released in 2000, it likely would not have saved 3dfx; the company’s decline was driven by strategic and business failures plus competitive OEM strategies from NVIDIA and others.
Availability and price: Anthony previously sold these cards; at the time of the video his orders were closed and he could not accept payments. The presenters paid roughly $1,500 for their unit.
The project required extensive troubleshooting and hardware sourcing. The presenters recommend careful handling and using era-correct platforms when running these cards.

References and contributors

Builder / reverse engineer: Anthony (aka zxc64) — maker and seller of the handmade Voodoo5 6000 boards
Video presenters / testers: the channel’s team (Patrick noted as a primary troubleshooter)
Historical sources & interviews: ExtremeTech (2003 Voodoo5 6000 review), Custom PC interview with zxc64, Anand Shimpi / AnandTech commentary, Computer History Museum interviews with 3dfx founders
Driver groups / resources: Voodoo5 6000 Resource Group, Amiga Merlin, Raziel64
Other contributors: local e‑waste recycler (Cramden Institute) and viewers who donated vintage components used in testing