Tuesday, August 6th 2024
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AMD Readies Radeon RX 7400 and RX 7300 Based on "Navi 33" Silicon
AMD is rumored to be readying two new entry-level desktop GPU models in the Radeon RX 7000 series. These are the RX 7400 and the RX 7300, which probably succeed the RX 6500 XT and RX 6400, respectively. Perhaps the most interesting aspect of the two are the silicon they're based on. Apparently, AMD is carving the two out from its 6 nm "Navi 33," the same chip it uses for its Radeon RX 7600 and RX 7600 XT SKUs.
The "Navi 33" monolithic silicon is based on the RDNA 3 graphics architecture, and has 16 workgroup processors (WGPs), or 32 compute units (CU), worth 2,048 stream processors, 64 AI accelerators, 32 Ray accelerators, 128 TMUs, and 64 ROPs. The silicon is maxed out in the RX 7600 and RX 7600 XT, and we haven't seen anything to suggest the existence of a desktop RX 7500, which means the RX 7400 and RX 7300 could be heavily cut down from the chip, with AMD reducing not just the CU count, but even the 128-bit GDDR6 memory bus width.
Sources:
komachi_ensaka (Twitter), VideoCardz
The "Navi 33" monolithic silicon is based on the RDNA 3 graphics architecture, and has 16 workgroup processors (WGPs), or 32 compute units (CU), worth 2,048 stream processors, 64 AI accelerators, 32 Ray accelerators, 128 TMUs, and 64 ROPs. The silicon is maxed out in the RX 7600 and RX 7600 XT, and we haven't seen anything to suggest the existence of a desktop RX 7500, which means the RX 7400 and RX 7300 could be heavily cut down from the chip, with AMD reducing not just the CU count, but even the 128-bit GDDR6 memory bus width.
34 Comments on AMD Readies Radeon RX 7400 and RX 7300 Based on "Navi 33" Silicon
I figured it was enough to drive the pixels on a 1080p144 display and VR LOW. It did great and still does.
The people buying the RX 6400 are price/availability/time locked out of some better feature product. I know it will have similar growing pains that RDNA3 has right now. No. Where the hell do you see 4K120? I don't even see that anywhere and I'm max 1080p144 territory.
Budget cards? Here you go.
See the problem yet? No?
Have fun with more of the Chinese chopping block mystery silicon.
We are effectively going backwards (again).
IF the replacements are using Navi 33 chips with shader/compute and TMU/ROP reductions, there is no reason to automatically assume the VCN block will be crippled or have similar restrictions - disabling encoder/decoder features while leaving others intact is not as straightforward as fusing off additional pipelines (although yes it might be possible to nerf most encoding and leave an intact decoding block).
Also to what end would this achieve seeing as Intel is bringing competition? If they are repurposing dies you generally want to make the least amount of core logic changes apart from nuking the bits that don't work. To be fair this would probably work as a reasonable option in a laptop that's not gaming specific and isn't using a large APU chip, but has instead got a 'big' CPU like a Core i9-13900HX or some such, maybe for the mobile workstation crowd and branded as a Radeon Pro part and use the stable driver branch - it's not gonna beat the best of the nvidia quadro RTX mobile options but it doesn't really need to.
The other points depend a lot on use cases - it would probably be fine for most esport crap at 1080p.
comprehensiveco.com/introducing-hdmi-2-1/