Tear-Down of Rare ATi HD 4870 X2 Prototype & History @GamersNexus
Tear-Down of Rare ATi HD 4870 X2 Prototype & History  @GamersNexus
Uploaded April 2026 | Updated September 2026, 2 weeks ago
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A viewer sold us his rare Engineering Sample AMD ATi HD 4870 X2 (RV770 / RV700 codename GPUs) to give us a unique insight into a past era. The launch of this GPU marked an upset for NVIDIA, when AMD's pressure -- as widely reported by Anandtech and Tech Report of the time -- caused NVIDIA to drop prices; however, this also preceded the 2008 financial crisis, putting AMD in a tricky position so soon after its ATi acquisition. Although we struggled to get the engineering sample to fully function beyond booting, we used the opportunity to dismantle it, look at the hardware, and talk history.

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TIMESTAMPS

00:00 - The AMD HD 4870 X2 Engineering Sample
03:23 - History of the HD 4870 X2
10:03 - The Big Dual-GPU Challenge
13:33 - TEAR-DOWN and Overview
17:55 - PLX Chip and 2 GPUs
21:35 - Heatsink Disassembly
23:41 - Conclusion

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Steve Burke: Host, Writing
Mike Gaglione: Camera
Tim Phetdara: Editing
Tannen Williams: Writing, Testing
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Tear-Down of Rare ATi HD 4870 X2 Prototype & History

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