The new interface spec doubles its predecessor's bandwidth to 32GB/s. Like the Radeon HD 7970 flagship, the HD 7870 adopts the 28nm design process and is also PCI Express 3.0-compatible. The new card carries 1280 SPUs, 80 TAUs and 32 ROPs, up 14% from 1120 SPUs and 43% more TAUs from just 56. The HD 7870's core configuration also differs from the 6870's. We've found that when using multi-monitor setups at extreme resolutions, the larger buffer of AMD's cards provide a significant advantage over Nvidia's, which are limited to 1536MB for the most part. While the HD 6870 typically came loaded with a 1GB frame buffer, the 7870 has been upgraded to 2GB. The HD 7870 is paired with a 256-bit wide memory bus providing a theoretical bandwidth of 153.6GB/s or 14% more memory bandwidth than the HD 6870. The GPU core is clocked at 1000MHz, 11% higher than the HD 6870, and the GDDR5 memory operates at 1200MHz (4.8GHz DDR), which is 14% higher than the HD 6870.
#Graphics chipset amd radeon hd 7800 series update install
For reference, the Radeon HD 7900 series cards measure 27cm long (10.6 in) making them difficult if not impossible to install into smaller mid-size ATX computer cases. The Radeon HD 7870 is surprisingly compact as it measures 24cm long (9.4 in), which is 1 centimeter shorter than the old HD 6870. On the bright side, the performance per watt of these lightweight 28nm GPUs was remarkable and should AMD revise their pricing they could become amazing mainstream offerings. performance ratio was less than stellar.Īs a result existing graphics cards such as the GeForce GTX 560 and even AMD's own Radeon HD 6850 represent a better value. Although they did deliver solid performance for bottom of the range gaming graphics cards, the price vs. This mainstream series featured the Radeon HD 7770 and HD 7750, which are much more affordable at $159 and $109. Next up we were faced with the Radeon HD 7700 series which went by the codename 'Cape Verde'. At the top of the food chain, the Radeon HD 7970 and HD 7950 are exceptionally fast GPUs and with a retail price of $549 and $449, respectively, AMD is making sure gamers pay top dollar for those high frame rates. Back in January, the 'Tahiti' GPUs, better known as the Radeon HD 7900 series, was released to become the fastest single GPU on the market.
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