With the upper hand on Nvidia at least last year, AMD (ATI brand is more) took the opportunity to do some revision to its series of 6000 HD cards. Instead of the next step planned upwards in the speed and performance, they no longer have as an overhaul of what went before the name of the value and effectiveness.
Main change revolves around stream processors and, in particular, how they are organized.HD 5800 hired maps a single processor complex which would delegate tasks to four swatches, the new family of islands in the North slave made further processors slave entièrement.Au rather than this, AMD employs four complex processors whereas the smallest number, are able to treat the more delicate than time tasks.
The result is a highly efficient architecture.As we said, it is not the top - end if you are looking for passionate chip level, you need to wait for the HD 6950 and HD 6970 novembre.La specification is relatively modest: 1,120 stream processors compared to 1 600 HD 5870 and 1.7 billion transistors to 2.1 billion its predecessor.There is a 900 MHz core clock, a gigabyte of RAM GDDR5 at 1050 MHz and a band 256 bit memory bandwidth.
Despite the cutbacks, flow optimized processors still delivered results impressionnants.Un 1,920 x 1,080 high 39 FPS in our reference quality score is ten images faster that Nvidia GTX 460 and only four frames HD 5870 cost over £ 250 exc VAT when it was released last year.
With 4 x anti-aliasing enabled, HD 34 fps shackled easily the GTX 460 25 fps and 6870 maintained Radeon score a playable speed 35 FPS to 2,560 x 1,600 and high qualité.Seulement high quality made combating 6870 HD, dropping to 25 frames per second.
GTX NVIDIA 460's field in our reference dirt 2 1,920 x 1,080 quality maximum, but only by a couple of frames.
6870 HD in our testing temperature and the maximum temperature of 78 degrees puissance.Une is perfectly acceptable and don't forget to descend when Council partners release the cards with more efficient coolers and peak power of our test rig draw 289W is largely consistent with the equivalent of Nvidia card draw.
£ 170 Exc VAT, whether it justifies the premium price £ 50 on the HD 6850 depends on how many you need every ounce of puissance.Le 6870 HD is certainly fast and efficient, but it may not match the old speed brute.Et for most people HD 5870, economies are the HD 6850 best value choice.
Author:Mike Jennings
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