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Palit HD4850 Sonic Review

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At OverclockersClub.com, we use a set of benchmarks to stress the graphics card. We will use a series of newer gaming benchmarks, as well as some that are more seasoned, to show how well the Palit HD4850 Sonic compares to some of the other enthusiast video cards on the market. We'll be using single GPU models exclusively to show just how much the Palit HD4850 Sonic brings to the table. All driver settings and clock speeds will be left at factory defaults for both the CPU and GPU in an effort to minimize or eliminate any variables that could impact the results. The test system used in this review is listed below. After testing the card at stock speeds, I'll overclock it to see what kind of performance can be gained. All testing is done with the default settings in the respective control panels, as well as default settings in the BIOS of the motherboard used for this test. For this round of testing, our drivers have been updated to the 177.79 for the Nvidia cards and the Catalyst 8.8 for the ATI video cards used for this review.


Comparison Video Cards:



Overclocked settings:

  • Palit HD4850 Sonic 789/1255

The Palit HD4850 Sonic Edition video card just rocks on the overclocking front. Most of the HD4850s I have tested have fallen in the 685 to 700MHz range on the Rv770 core and just around the 1100MHz or fewer mark on the memory. With the starting point at 685MHz on the core and 1000MHz on the memory, I was not expecting much figuring I would get to the card's limits pretty quickly. What surprised me was that the Sonic just kept going. Moving initially in smaller 5MHz increments, I thought that wall would come up fast. I got there eventually but was pleasantly surprised at the levels I reached the limits. 789MHz is a 15% improvement over the stock speeds of the GPU core on the Sonic. If you take that back to the stock HD4850 speeds of 625MHz on the core that percentage increases dramatically. The memory went up an amazing 26%, a total of 255MHz over the stock 1000MHz speed of the GDDR3 memory. With this kind of overclocking the Sonic has got to offer some serious performance. I can't wait to see just how well this card performs against the HD4870 and GTX260.



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