Overdrive Gemini.SLI

CNET editors' review

• Reviewed by:
  Rich Brown
• Edited by:
  Justin Jaffe
• Reviewed on: 04/21/2006
• Updated on: 11/07/2009

Overdrive's Gemini.SLI is an expertly tweaked system whose performance rivals that of similar systems with higher-end stock components. Equipped with only a midrange AMD Athlon 64 X2 4400+ processor, our test unit was able to play in the same performance ballpark as the Falcon Northwest Mach V, the Velocity Micro Raptor, and other systems running AMD's flagship Athlon 64 FX-60 CPU. The Gemini.SLI's overachieving performance comes from aggressive overclocking that pushes its 4400+ processor to 2.7GHz--well beyond its standard 2.0GHz operating speed. Still, despite that impressive technical feat (backed by the warranty, no less), we have reservations about this $4,008 Gemini.SLI. Considering the lack of a significant cost-benefit by going with overclocked parts and a potential motherboard-based roadblock to future 3D performance, we think you're better off choosing a system stocked with faster parts rather than relying on Overdrive's overclocking.

Despite our issues, we have to hand it to Overdrive. Like perhaps no other company, it digs deeper into the fine details of BIOS settings and other overlooked areas of PC design, often resulting in category-leading performance. The Gemini.SLI is not the fastest PC we've ever seen, but it comes awfully close. Its overall SysMark 2004 score trailed only the overclocked FX-60-based Falcon Northwest Mach V (though the Gemini.SLI notched a superior office-productivity score, making this the fastest machine we've seen for running Microsoft Word). The Gemini.SLI's 3D gaming results were less impressive but still plenty fast. Its two 256MB Nvidia GeForce 7900 GT cards helped it deliver 96.1 frames per second (fps) on our demanding Half-Life 2 test (run at 1,600x1,200). The two FX-60-based PCs from Falcon and Velocity Micro posted 109.1fps and 106.3fps, respectively. While those systems beat the Overdrive, the configurations we reviewed cost at least $1,000 more. If that sounds impressive, don't get too excited. When we align the specs of competing systems while preserving the core components to preserve the same performance outlook, the Overdrive loses some of its appeal.

The Velocity Micro Raptor 64 Dual X makes a good comparison system for the Gemini.SLI; the ABS M6 Sniper and the Polywell Poly 939N4X2 systems we reviewed lack the Overdrive's build quality, and the Falcon Northwest Mach V is significantly overpriced. The Gemini.SLI has a relatively spare configuration: for $4,008, you get only one optical drive, no mouse or keyboard, and an aging Sound Blaster Audigy SE sound card. When we configured an Overdrive Gemini.SLI and a Velocity Micro Raptor 64 with nearly identical specs, the only difference was the CPU and the motherboard. A Gemini.SLI, equipped with an overclocked Athlon 64 X2 4400+, came to $4,343; a Velocity Micro system with an Athlon 64 FX-60 came to $4,375. Clearly, Overdrive's overclocked CPU doesn't save you much money. (For the sake of transparency, Velocity wouldn't let us configure a single primary hard drive, so we went with two 74GB Raptor drives, the closest we could get to the single 150GB Raptor drive in the Gemini.SLI.)

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