Never-released GeForce RTX 3080 20GB and Radeon RX 580 16GB now available in China Chinese companies are making new cards from used hardware. Recently, we have discussed the topic of RTX 4090 GPUs that are currently being disassembled and reassembled as AI-accelerators for the emerging AI market. This has been happening in China for a […]
The RX580 “16GB” is a edited card with the Pro bios and not 1Gbit but 2Gbit chips, making it a 16GB model. However there was barely any difference clock for clock when you put it against the 4GB vs 8GB model - i’m sure the 16GB model would not show any benefit at this point.
The RX6700XT is 2.5x as fast, carries 12GB of memory and is quite more efficient then the Polaris generation. If you would pay a high fee for the RX580 16GB then it’s best to leave it alone or collect it as a item.
Extra 8GB is only beneficial in workloads that can use it - other then that it would not make any difference compared to a 8GB model in games. I would like to see that they do install faster GDDR memory rather then more memory.
Polaris has always bin bandwidth starved. You can tell the GPU clock stops scaling beyond 1000 ~ 1100Mhz. Going upwards to 1366Mhz which was the default clock is not yielding anything extra really. It comes from tuning and tweaking the memory (faster timings, higher clocks). I’d say a RX580 with 2500Mhz GDDR5 would actually compete with not just a 1070 but perhaps a 1080 even.