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Review Introduction to Palit HD4850 Sonic Radeon
HD 4850 Graphics card
Bluetooth 12 Sep 2008
Introduction
In June, we reviewed
two ATi HD4850 cards, one from ASUS and the other from PowerColor. Although the
HD 4850 received well acclaimed reviews for it's price/performance, the ref
HD4850 suffered from a poor fanning solution and it gets too hot, registering a
77 deg Celsius even on idle. Many solutions popped up on the net, including
modifying the fan, circuitry, firmware to spin up the fan.
In order to solve all these problems, Palit came out with a custom designed
Radeon HD4850.
Based on the RV770 GPU, this card comes with
256 bits memory width with Samsung 1.0ns GDDR3 (512MB). It supports DX10.1 and SM 4.1. The HDMI comes with 7.1 HD
audio and it supports advance PowerPlay. Although the original ATi ref card
clocks at 625/993, the Palit HD4850 Sonic comes preclocked at 685/1000MHz.
Palit redesign the power circuitry and replaced it with a 3 phase PWM. In
addition, it uses a 8pin power connector. It is able to support up to 150W;
sufficient power enables overclocking potential with stability.
The card also uses a dual slot design with copper heatpipe. Palit HD 4850
Sonic comes with Palit's innovative cooling system with two-ball bearing PWM
fan, heat-pipes, and superior copper base to ensure high performance, consistent
thermal effect but still generates less noise. This unique cooling design helps
the graphics card to dissipate the heat efficiently, both for the components and
the memories, the GPU temperature is up to 20deg lower than the original fan and
the cooling system is 10dB quieter even at full loading situation
As usual, this card
supports UVD2 that
gives you the best images
with low CPU utilisation. The PowerPlay also helps to conserve energy allowing you to run your system in a
cool, quiet PCs. For the light gamers, 3D realism is realised with
DirectX® 10.1 capabilities and plug-and-play ATI CrossFireX™ multi-GPU
upgradeability.
There is also the built in HDMI with 7.1 Surround Sound for
single HDTV connectivity. This feature is enabled with an intelligent DVI to
HDMI adaptor, no internal SPDIF or other audio cabling is required.
Package Box
Other than the graphics card, the package comes with a
DVI-HDMI converter, 6 pin to 8pin connector, CD and Manual
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