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Zotac GeForce GTX 275 AMP! Edition

Zotac GeForce GTX 275 AMP! Edition

Factory-overclocked for extra grunt

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Switching to the Zotac GTX 275 AMP! was intriguing. We started by underclocking to the reference GTX 275 speeds of 632MHz/2268MHz/1404MHz and found that the Zotac produced results that were almost identical to the GTX 280. At overclocked AMP! speeds of 702MHz/2520MHz/1512MHz, the Zotac matched the overclocked GTX 280. We were unable to take the Zotac to higher speeds as it seems that the AMP! leaves the factory overclocked to the limit.

Power Draw Results

Zotac GeForce GTX 275 AMP! Edition - Power Draw

Power draw in Watts (W)

Zotac GeForce GTX 275 AMP! Edition - Chart Key

So how did the Radeon HD 4890 match up? On factory overclocked speeds of 900MHz/3900MHz the Radeon lost out to the reference GTX 275 in 3D Mark Vantage and matched it in Crysis and Far Cry 2.

Increasing the clock speeds to 970MHz/4400MHz produced some intriguing results from the Radeon HD 4890 compared to the Zotac AMP! GTX 275. In Crysis and Far Cry 2, the HD 4890 yielded a lower minimum frame rate but posted faster average frame rates. No matter how you cut it, the HD 4890 and GTX 275 are very similar indeed which pays tribute to Nvidia’s ability to dice and slice the GT200 chip to produce new products.

Verdict

Zotac’s overclocked Nvidia GeForce GTX 275 delivers all the performance you need for Full HD gaming. However, so does AMD's ATI Radeon HD 4890 and also offers slightly better value for money. ®

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80%
Zotac GeForce GTX 275 AMP! Edition

Zotac GeForce GTX 275 AMP! Edition

The GTX 275 is a cut-down GTX 285 that rivals AMD's champion HD 4890 on performance, but you pay a small premium for the privilege.
Price: £253 RRP

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