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And transferring data to and from the GPU is also a source of overhead.
by gmueckl 8y ago
And transferring data to and from the GPU is also a source of overhead.
- inetknght 8y agoDespite having an overhead of transferring data to and from the GPU: it's still faster to move the data to the GPU and let the GPU process it locally than it is to leave it in main RAM away from the processing. Transferring data to and from the CPU is also a source of overhead; even your CPU has cache to bring the data more local. So what's your point?
- gmueckl 8y agoWhatnyounsay is not true as a blanket statement: the overhead for transferring data to GPU memory is higher than accessing main memory from the CPU, so depending on what you do, the data transfer to the GPU might not result in a performance gain at all.