CaseySJ
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after watching the RTX 30xx launch, damn...... AMD better come up better so we can get that for our Hackintosh!
Or a firmware update for the 5700XT to open up more cores and raytracing
Some thoughts after watching the entire Nvidia RTX 3000-series keynote. First of all, very well done presentation by Jensen Huang (Nvidia CEO).I have to watch independent reviews of the RTX 3000-series, but if the RTX 3070 is really faster than the 2080 Ti and costs only US$499, then all I can say is WOW!!
- The performance numbers touted by Nvidia ("double triple") might require PCIe 4 (this is my guess).
- Nvidia RTX IO only makes sense for PCIe 4.0 NVMe SSDs. When the read speed is 7000 MB/s, sending data to the CPU first and then to the GPU is too cumbersome, hence PCIe 4.0 SSDs will send data to the RTX 3000 GPUs directly over PCIe 4.0 bus.
- When the game data is compressed (which is common) the CPU decompresses it and sends an even larger quantity of uncompressed data to the GPU (the 4th bar in the chart), so the benefit of RTX IO becomes apparent.
- Remember that only PCIe 4.0 can achieve such high speeds, which is why RTX 3000 supports PCIe 4.0.
But which Intel motherboards and CPUs today support PCIe 4.0?
Even on Z490 Vision D, support for PCIe 4.0 will come later with Rocket Lake and we will need to purchase new CPUs.
- The only existing widespread platform that can fully support the speeds of RTX 3000-series GPUs is AMD X570 and AMD B550 with Ryzen CPUs (running Windows).
To exploit the full potential of RTX 3000-series GPUs, PCIe 4.0 is needed. So there is an immediate benefit to AMD!
- Perhaps this is partially why there was no competitive 'dissing' of AMD in the keynote.
- Only AMD motherboards and AMD CPUs can fully exploit RTX 3000 at this time.
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