4 ms·
GDDR5 as CPU RAM sounds crazy in the best possible way.
GDDR5 as CPU RAM sounds crazy in the best possible way.
PS4 has this since 2013.
Isn't it much higher latency than DDR4?
No it doesn't.
GDDR5 is bad for CPU as it sacrifices latency for throughput.
Cache misses and branch mispredictions become so expensive and in the end it's inefficient.