Conclusion: It feels like an age since we last saw a genuinely brand-new architecture from either AMD or NVIDIA, and if that's what you're looking for from this launch then I'm afraid it's time to be disappointed. RV790 may be a new core in name, but it's clearly just a tweaked version of RV770 for higher clock speeds with a few other performance and efficiency enhancements bundled in too.
Summary: After a series of tests we found the card to be a stable GPU that runs cool, stays silent (for the most part) and handles quite a load graphics wise. The frame rate in the majority of games came out excellent. The card didn’t hit temperatures too far over 50 Celsius, even while gaming and the added silence of the fan at 50% was nice. At 100% the video card’s fan sounded like a mini pocket fan, if not quieter.
Excerpt: The ATOMIC series of cards is one that we really do get excited about when it comes to Sapphire products. Unlike a lot of other companies who overclock, Sapphire tend to really mix it up with this particular series. We don't only see some serious clock speeds, but also something fancy in the heatsink department which always helps bring the card to a new level.
Summary: It looks like Sapphire has struck gold with their HD 4890 Toxic Vapor-X. The card offers considerably improved performance over the HD 4890 reference design and can beat the GeForce GTX 280. It does all that without being noisy, it is much quieter than all other HD 4890 cards I tested so far. It's great that Sapphire finally listened to our constant nagging: "your cards are too noisy".
Pros: Quiet, High default clocks, Voltage control support for memory and GPU voltages, Six + Eight-pin power connector, Nice aesthetics
Cons: Very limited overclocking potential, No support for CUDA / PhysX
Conclusion: Many of you will say, “All the HD 4890 is, is an overclocked HD 4870″. In some regards you are right. But who honestly runs 850MHz core on an HD 4870 without extreme cooling? Not even my non reference HD 4870 can get through a round of Vantage, let alone, being stable. Even if you somehow manage to reach 850MHz core, no HD 4870 will be stable at 950MHz core without a serious voltage modification.
Conclusion: We mentioned at the beginning of this review that in today’s marketplace innovation through the maturing of existing technologies would be the way to success. Even though their new architecture is still some time away, ATI knew that they needed a card placed between the HD 4870 1GB and HD 4870 X2 to better compete with Nvidia’s offerings.
Conclusion: Im Fazit wollen wir nun noch einmal kurz alle Beobachtungen zusammenfassen. So weiß der Refresh des RV770 erst einmal zu beeindrucken und AMD zeigt deutlich, dass in der Regel verbaute Chips nicht unbedingt am Limit ihrer Möglichkeiten agieren müssen, sondern oftmals brachliegendes Potenzial vorhanden ist.
Summary: Resumen: Sapphire nos presenta su Radeon HD 4890, una tarjeta que con la rebaja de precio y gracias a sus excelentes prestaciones resulta ser una estupenda opción para adquirir un modelo de gama alta.
Pros: Calidad general, Accesorios incluidos, Escelente rendimiento, Funcionamiento fresco y bastante silencioso, Relación precio-rendimiento excelente
Conclusion: Uusi versio puristaa enemmän tehoja irti vuoden vanhasta piiristä korkeammilla kellotaajuuksilla. Hintansa puolesta 4890 kilpailee suoraan GeForce GTX 275:n kanssa. Pelinopeudessa nopeuskuninkuus vaihtelee pelistä toiseen, joten se ...