Arc B770 vs Radeon RX 7700 XT
Uma leitura lado a lado de tdp.
Entendendo tdp
TDP is a thermal design specification. Coolers and chassis are designed to dissipate the TDP figure indefinitely without throttling.
Why it's not power consumption
Modern CPUs and GPUs can briefly exceed TDP during boost (Intel's PL2, AMD's PPT, NVIDIA's power limit). They also dip below TDP at idle. The TDP figure is the sustained-load expectation, not a constant draw.
Why it matters
- Laptops. Lower-TDP chips fit in thinner chassis with longer battery; higher-TDP chips need beefier cooling.
- Mini PCs. A 65 W chip in a 0.8 L chassis will throttle. A 35 W chip will not.
- Desktops. Drives PSU sizing and case fan choice.
In comparisons
Two CPUs with the same TDP and similar specs will usually feel similar in real-world use. Big TDP gaps (35 W vs 125 W) reliably predict large performance gaps under sustained load.
Este dueloRadeon RX 7700 XT's 245W is roughly 9% more than Arc B770's 225W (a 20W gap). Lower is better here, so Arc B770 takes the lead in real use.
O que é tdp?
Thermal Design Power — the maximum sustained heat output a CPU or GPU is designed to dissipate, measured in watts. A guide for cooler sizing, not an absolute power consumption number.
Ler a explicação completa de TDP →Outras specs nesta comparação
Veja a categoria completa Placas de vídeo com todos os produtos classificados pelo Mars Score.