Analyse: Sonys 10.3 teraflop PlayStation 5-løfte er misvisende

Tekst: Magnus Groth-Andersen
Publiceret 2020-03-24

Selvom det måske er en kende for tidligt at begynde at sammenligne PlayStation 5 og Xbox Series X, særligt når nu vi ikke reelt har set nogle af dem afvikle spil live endnu, så findes der efterhånden allerede et hav af meninger og holdninger til hvilken en af dem er stærkest.

Det er måske kun naturligt idet forbrugerne skal finde ud af hvilken en de foretrækker, men kigger man udelukkende på selve afsløringerne af de to konsoller, så har tech-siden WCCFTech nogle ret hårde ord til overs for Sonys GDC-inspirerede PS5-snak - de kalder nemlig maskinens angivne 10.3 teraflops for en kende misvisende. I en detaljeret gennemgang sammenligner de omstændighederne bag begge konsollers afsløring, og kan konkludere at Sonys måde at løfte sløret for deres konsols hestekræfter ikke helt holder i byretten.

"Things get murkier though, while Microsoft's reveal was excruciatingly clear, succinct and allowed third-party testers like Digital Foundry to get closeups out, I found the Sony Playstation 5 reveal to be somewhat lacking in clarity and almost, deliberately vague. My primary pain point was when the Sony PS5 was advertised to ship with 10.3 TFLOPs and then the words "variable clock rate" were uttered in the same breath. This, as many of you have guessed is misleading."

Og hvorfor er det så misvisende? Ja, det forklarer WCCFTech således:

"Sony PS5 has something called a variable clock rate. What that means is that the console will not run the GPU at 2.23 GHz all the time. Since Microsoft's clock is a static number, just because PS5's clock rate is variable makes the 10.28 TFLOPs number uncomparable to the Xbox Series X and misleading. This is because XSX is displaying the "sustained TFLOPs" figure while PS5 is displaying the "peak TFLOPs" figure."

Faktisk påstår WCCFTech i deres artikel, at hvis Microsoft også valgte at vise "peak"-tal i stedet for "sustained"-tal, så ville de sidde på langt mere end 12 teraflops:

"Microsoft might actually have underclocked its own console to make way for a "fine wine" philosophy as we have seen in the past. In fact, if they were to approach a dynamic clocking philosophy as well, they can hit an astounding 14.6 TFLOPs figure (using the PS5 clocks) - which is absolutely insane for a console. That said, you don't want to do that. Optimizing games is hard and having a static clock with no power fluctuation shenanigans is always easier to work with than a dynamic approach."

Naturligvis er det for tidligt at sige noget om begge konsoller, men hvad der dog er tydeligt er at Sonys præsentation af PS5's arkitektur ikke er gået lige så godt som man kunne have håbet.

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