Monday, December 27th 2021
AMD Navi 24 GPU Powering RX 6500 XT Built on 6nm
AMD's first GPU built on the N6 (6 nm) silicon fabrication process isn't some big RX 7000 series behemoth, but the smallest chip from the Navi 2x GPU family, codenamed Navi 24. Based on the same RDNA2 graphics architecture as the rest of the RX 6000 series, the Navi 24 physically packs 1,024 stream processors across 16 compute units (8 WGPs), and on the RX 6500 XT, reportedly comes with 4 GB of memory across a 64-bit wide memory bus. The chip also packs a tiny 16 MB Infinity Cache. VideoCardz scored the first renders of the upcoming Radeon RX 6500 XT and RX 6400, which are based on the Navi 24. The RX 6500 XT features a full-height, 2-slot board design that uses a simple aluminium monoblock fan-heatsink. The RX 6400, on the other hand, is not just low-profile (half-height), but also single-slot.
Update Dec 28th: Unless we're mistaken, the SMDs near the PCIe interface in those renders seem to suggest that the GPU features a PCIe x4 interface. This should offer sufficient bandwidth for a GPU in this segment, and should help lower the pin-count of the GPU, as well as board costs.
Source:
VideoCardz
Update Dec 28th: Unless we're mistaken, the SMDs near the PCIe interface in those renders seem to suggest that the GPU features a PCIe x4 interface. This should offer sufficient bandwidth for a GPU in this segment, and should help lower the pin-count of the GPU, as well as board costs.
94 Comments on AMD Navi 24 GPU Powering RX 6500 XT Built on 6nm
We know they won't though.
In places where the electricity is ridiculously cheap, a 6600XT (which is literally twice the card of the 6500XT) makes about $0.75 a day, and costs $650 to buy. That's an ROI of 30 months and assumes (incorrectly) that you got your mining frame, PSUs, 6-slot motherboard, CPU, RAM, SSD, internet connectivity, and space to house it all for free. The profitability considers ONLY the GPU's own power consumption vs energy cost. Absolutely, but we have to guess that clock speeds won't be that different to current entry-level RDNA2 offerings. The 6600XT runs at ~2.5GHz and with the smaller process node the 6500XT might break 3GHz. Unlikely but not impossible.
Let's just say it runs at 4GHz though - it won't matter because the reduced bandwidth and cache put an upper limit of how fast it can be; The 6600XT with twice the cache and twice the bandwidth is already running into cache and bandwidth issues at 1440p; It's a 1080p card.
Half the bus and half the cache means that the 6500XT may already be bandwidth-limited at just 1080p - increased clock speeds just means more wasted cycles are completed before the data arrives to process, there's not really any extra performance to be had if the GPU is starved.
I'm now almost certain this will be sub $200, probably $179 or even lower ...
Reminds me of my FX 8350 with GeForce GT 640 rig that I built in 2015. (with Sabertooth 990 FX R 2.0)
And for the artificial overclock limiting, that's why I had to "jailbreak" a Radeon RX 5600 XT.
"64-bit wide memory bus"
Almost seems contradictory in a way ;)
was a busy morning with the kids