3 ms·
Hm that’s interesting. In which case(s) does Thunderbolt 3 become a bottleneck? I do have a thunderbolt 3 monitor.
by lilactown 6y ago
Hm that’s interesting. In which case(s) does Thunderbolt 3 become a bottleneck? I do have a thunderbolt 3 monitor.
- kitsunesoba 6y agoThe bottleneck isn't usually between the GPU and the monitor, unless you have an absurdly high rez monitor (8k, or 5k on machines that don't support Display Stream Compression). Where problems show up is with an external Thunderbolt GPU, because Thunderbolt 3 only has a fourth of the bandwidth of PCI-E, meaning in situations that would be pushing an internal GPU to 100% will have an external GPU sitting at ~25% barely doing anything at all because it simply isn't getting enough data from the CPU. The extent of this effect depends on your needs, though. Older or less demanding games for example probably won't exceed Thunderbolt 3's bandwidth limits, but if you're looking to play relatively recent games on high(ish) settings an eGPU might not make sense. It's best to look eGPU benchmarks for your games/apps and make a decision based on that.