[Manuel Calavera]

Autor Amepshi

Samim prelaskom DDR5 7gbps -> HBM, AMD će uštedjeti cca. 50 vata. Što znači da će moći daleko više usmjeriti prema GPU-u.

512GB/s 8GBps GDDR5 @ 512-bit sabirnica cca. 90 vata, dok HBM 640GB/s @ 4096-bit cca. 30 vata

tako nešto

The end result is a 300% improvement in bandwidth per watt. Attained through significantly higher bandwidth and significantly reduced power. More interestingly, AMD estimates that 15-20% of the R9 290Xs 250W TDP is for the memory sub-system. Which means that AMD can reduce the memory power consumption from 40-50W down to 15W just by switching from GDDR5 to HBM. A 290X that utilizes HBM as a result would be a 215W GPU, rather than a 250W one. We expect to see this materialize with AMD’s upcoming flagship Radeon based on the Fiji GPU.