ATI Radeon HD 4770: ATI's First 40nm GPU

Graphics Cards
Viewing page 8 of 8 pages. Previous 1 2 3 4 5 6 7 8


Gaming: Please check out gaming-oriented reviews of the HD 4770 at xbit labs, techPowerUp, HardwareCanucks, and The Tech Report. Preliminary reports indicate that the performance level is between that of the HD 4830 and 4850 and easily surpasses the GeForce 9800 GT. If this holds true, the card is easily the highest performance $100 GPU on the market.

Cooling/Noise: The stock cooler is audible but unobtrusive when idle and its fan ramps up smoothly. When placed under stress in our testbed, the fan speed leveled out only a few hundred RPM higher than the idle speed, resulting in only a small increase in noise. The temperatures we recorded during testing were excellent. The card's power draw does not warrant a dual-slot cooler, and a reduction in fan speed would probably have little impact on maximum load temperature.

Power Consumption: By our estimates, the ATI Radeon HD 4770 requires about 28W idle and up to 60W when stressed to the limit. The idle number is 10W more than the HD 4830, while the load figure is 27W less. All things equal, we prefer lower idle power consumption as most systems, especially ones equipped with low/mid-tier graphics cards sit idle most of the time. However, xbit labs, whose video card power measurements are usually quite consistent and trustworthy, found their HD 4770 idling >10W lower than their 4830, so we are a bit puzzled at this point. We'll try more testing, perhaps with another sample, and report back on this again.

As a 60W card, the GPU runs fairly cool and thus the stock fan barely needs to exert any real effort. The cooler is quiet enough not to bother most users, especially during load. Some with sensitive hearing will probably still want to opt for a third party solution. Assuming the HD 4770 performs as expected, we thank ATI for bringing unparalleled value to budget PC gamers. The HD 4830 was already an excellent bang-for-your-buck card, and to replace it with a card that is faster and has a lower thermal envelope without increasing the price is an admirable feat.

The only negative point is our sample card's poor idle power consumption which can't be overlooked. It makes little sense for a card to draw almost half the amount of power it does when placed under load, which suggests that ATI's power management feature, PowerPlay, just isn't working properly on this sample. Despite this, it still drew less power than the GeForce 9800 GT, the HD 4770's chief competitor.

ATI Radeon HD 4770 512MB

* Fairly quiet
* Well cooled
* Low power consumption during load

* High idle power consumption

Our thanks to ATI for the video card sample.

* * *

Articles of Related Interest
HIS Radeon HD 4890 Turbo Edition
Sparkle GeForce GTS 250 1GB Graphics Card
Asus EN9400GT Silent Edition
Asus Radeon HD 4870 Matrix
Asus EN9800GT Matrix Edition
Filling the Gap: ATI Radeon HD 4830

* * *

Discuss this article in the SPCR forums.

Previous 1 2 3 4 5 6 7 8

Graphics Cards - Article Index
Help support this site, buy from one of our affiliate retailers!