AMD RX 7000 series final specs rumored

Soon enough we’ll be getting some new toys to play with

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Angstromics has come to clear the air of all the rumors. It has outlined the likely final specs of the RX 7000 series cards.

The RDNA 3 lineup is likely to contain three discrete variants. With Navi 31, 32, and 33 outlined, the series will likely launch with the RX 7900 XT, RX 7800 XT, and RX 7800.

Along with the configuration, there are other factors that have been changed to improve the architecture. With plenty of optimizations to further improve the effectiveness of the cards.

RX 7000 series optimizations

Apart from smaller processes, there are other areas that have been improved to further the line. Firstly AMD Radeon is rearchitecting Compute Units and Graphics Pipeline.

These are mostly about removing the extra space on the dies. Creating the lowest area and cost per area. Much improved over RDNA 2 even with doubling ALUs.

Another feature of the graphics is OREO, the Opaque Random Export Order. This reorders the shaders to run in order, and not need another pipeline element down the line.

There is also an Infinity cache update. The Memory Attached Last Level (MALL) cache blocks have been halved in size. It doubles the number of backs and reduces the penalty of going to VRAM with higher bandwidth.

Navi 3X configuration

Angstromics points out this configuration was done in 2019 and finalized in 2020 and has not changed since.

The biggest change for the lineup is the use of its chiplet tech. As seen in the Ryzen 7 5800X3D, utilizing TSMC’s fanout tech lowers costs and the 3D stacked MCD double the infinity cache but does cost extra.

There is also a reported change in reference card design. Although keeping with the three fan design, it is going slightly taller, for higher TDPs. It also comes with a distinctive three-red stripe accent on the heatsink near the dual 8-pin connectors.

With that in mind, we bring you what to expect from the three graphics cards. With a Navi 31 chip expected this year, Navi 32 in 2023 that is smaller Navi 31, and the Navi 33 mobile push for AMD.

	AMD Navi 31	AMD Navi 32	AMD Navi 33
Codename	Plum Bonito	Wheat Nas	Hotpink Bonefish
Fab process	TSMC 5+6nm	TSMC 5+6nm	TSMC 6nm
Architecture	AMD RDNA 3	AMD RDNA 3	AMD RDNA 3
GPU package	Multi-chip-module (MCM)	MCM	Monolithic
Chiplet config	1x GCD + 6x MCD	1x GCD + 4x MCD	–
GCD size	~308mm²	~200mm²	–
MCD	6x ~37.5mm²	4x ~37.5mm²	–
Full GPU	~533mm²	~350mm²	~203mm²
Shader engines	6	3	2
Shader arrays	12	6	4
RDNA workgroups (WGP)	48	30	16
Compute units	96	60	32
Stream processors	12,288	7,680	4,096
VRAM	GDDR6	GDDR6	GDDR6
Memory bus	384-bit	256-bit	128-bit
Memory bandwidth	864GB/s (18 Gbps)	576GB/s (18 Gbps)	288GB/s
Infinity cache	96MB (0-hi)	64MB (0-hi)	32MB
PCIe interface	PCIe Gen5	PCIe Gen5	PCIe Gen5
Release	Q4 2022	2023	TBC
Rumored SKU	Radeon RX 7900 XT	Radeon RX 7800 XT	Radeon RX 7600 XT

What are the codenames of the RDNA 3 chips?

For the Navi 3X RDNA 3 GPUs, we have the working codenames. Navi 31 is called Plum Bonito, Navi 32 is Wheat Nas, and Navi 33 is nicknamed Hotpink Bonefish. With the last one expected to be a mobile release.

How much inifinity cached will RDNA 3 have?

There have been final spec rumors that go through the details of what we can expect from the Navi 3x lineup. Navi 31 is said to feature 96MB, Navi 32 with 64MB, and Navi 33 32MB. Along with size, it is reported infinity cache has been updated in the new series. With MALL blocks halved, and increased bandwidth the penalty of going to VRAM has been reduced.