AMD RDNA 3 Navi 32 GPU For Radeon RX 7700 XT & Navi 33 GPU For Radeon RX 7600 XT Graphics Cards Detailed

After the Navi 31 GPU die, the RDNA three based Navi 32 GPU for the AMD Radeon RX 7700 XT & Navi 33 GPU for Radeon RX 7600 XT graphics cards have been detailed too. The details once again are reported and visualized equally GPU block diagrams by Olrak over at Twitter.

AMD RDNA 3 Navi 32 & Navi 33 GPUs Detailed - Would Power Adjacent-Gen Radeon RX 7700 XT & RX 7600 XT Graphics Cards

The AMD RDNA 3 lineup will consist of both monolithic and MCM GPUs that would ability the adjacent-gen Radeon RX 7000 serial graphics cards. Nosotros have been hearing reports that the Navi 3X graphics chips volition be taping out soon and then it's too early to tell if the information is used to visualize these dies is reliable or not but they do come up from sources who take been quite accurate with their leaks so information technology is wise to read these details with a pinch of table salt.

AMD RDNA 3 Navi 32 GPUs For Radeon RX 7700 Series

The AMD Navi 32 GPU will be one of the 2 MCM GPUs featured in the RDNA 3 lineup. The GPU will characteristic two GCD's (Graphics Compute Dies) and a singular MCD (Multi-Enshroud Die). The die is very similar to the flagship Navi 31 GPU simply has ane less Shader Engine beyond each die. The AMD Navi 32 GCD is expected to utilise TSMC'southward 5nm process node while the MCD will be based on a 6nm process node. Rumors are that AMD has the option to select betwixt Samsung and TSMC for the 6nm dice.

A preliminary block diagram of AMD's adjacent-gen RDNA 3 based Navi 32 GPU that will power the flagship Radeon RX 7700 XT graphics bill of fare. (Image Credits: Olrak)

Each GCD has 2 Shader Engines (4 in total) and each Shader Engine has 2 Shader Arrays (two per SE / 4 per GCD / 8 in total). Each Shader Array is equanimous of 5 WGPs (10 per SE / 20 per GCD / 40 in total) and each WGP features 8 SIMD32 units with 32 ALUs (40 SIMD32 per SA / lxxx per SE / 160 per GCD / 320 in total). These SIMD32 units combine to make up 5120 cores per GCD and 10,240 cores in full.

The Navi 32 (RDNA 3) MCD will be linked to the dual GCD's via a adjacent-generation Infinity Fabric interconnect and feature 384 MB of Infinity Cache. Each GPU should too feature 3 memory connect links (32-bit). That's a total of half dozen 32-scrap retention controllers for a 192-bit bus interface.

This would bring the performance of the AMD Radeon RX 7700 series higher up the RX 6800 and RX 6900 series, offering one big jump in graphics horsepower in games. This would also pump up the power numbers as the RX 6700 XT is currently rated at 230W but that could go up to 270-300W.

AMD RDNA 3 Navi 33 GPUs For Radeon RX 7600 Series

The AMD Navi 33 GPU will start the monolithic segment within the RDNA three family. The GPU volition feature a single die. The die is very similar to the flagship Navi 21 GPU and is expected to utilize a 6nm process node for fabrication.

A preliminary block diagram of AMD's next-gen RDNA 3 based Navi 33 GPU that volition ability the flagship Radeon RX 7600 XT graphics card. (Image Credits: Olrak)

The Navi 33 GCD has ii Shader Engines and each Shader Engine has two Shader Arrays (2 per SE / 4 in full). Each Shader Array is composed of 5 WGPs (10 per SE / twenty total) and each WGP features eight SIMD32 units with 32 ALUs (forty SIMD32 per SA / 80 per SE / 160 total). These SIMD32 units combine to make upwardly 5120 cores which is the same core count every bit the RX 6900 XT (Navi 21 XTX GPU).

The Navi 33 (RDNA 3) is expected to carry 256 MB of Infinity Cache. Each GPU should likewise feature 2 memory connect links (32-chip). That's a full of four 32-bit retentivity controllers for a 128-bit motorcoach interface. This would bring the performance of the AMD Radeon RX 7600 serial above the RX 6800 and RX 6900 series at a TDP of effectually 200W.

AMD RDNA 3 Navi 31 GPUs For Radeon RX 7800/7900 Series

The AMD Navi 31 GPU, the flagship RDNA 3 bit, would power the next-gen Radeon RX 7900 XT graphics card. We accept heard that AMD will driblet CU (Compute Units) in favor of WGP (Work Group Processors) on its adjacent-gen RDNA iii GPUs.

A preliminary block diagram of AMD'southward next-gen RDNA 3 based Navi 31 GPU that will ability the flagship Radeon RX 7900 XT graphics card. (Epitome Credits: Olrak)

The Navi 31 GPU configuration shown here features two GCD's (Graphics Core Dice) and a single MCD (Multi-Cache Dice). Each GCD has 3 Shader Engines (six in full) and each Shader Engine has 2 Shader Arrays (ii per SE / half dozen per GCD / 12 in full). Each Shader Assortment is composed of 5 WGPs (ten per SE / 30 per GCD / sixty in full) and each WGP features 8 SIMD32 units with 32 ALUs (forty SIMD32 per SA / 80 per SE / 240 per GCD / 480 in total). These SIMD32 units combine to make upward seven,680 cores per GCD and xv,360 cores in total.

The Navi 31 (RDNA 3) MCD will be linked to the dual GCD's via a adjacent-generation Infinity Fabric interconnect and feature 256-512 MB of Infinity Cache. Each GPU should also feature four memory connect links (32-fleck). That'southward a total of eight 32-bit memory controllers for a 256-bit jitney interface.

There take been several rumors stating that the upcoming RDNA 3 GPUs are going to outperform whatsoever NVIDIA has to offering in terms of rasterization performance. It looks like AMD will have the lead past offer the first MCM-powered GPUs under its Radeon RX graphics card lineup. Only at the aforementioned time, NVIDIA is expected to quickly transition to its MCM GPU lineup which will offer over 3x performance boost over Ampere GPUs.

AMD RDNA 3 Navi 3X GPU Configurations (Preliminary)

GPU Name	Navi 21	Navi 33	Navi 32	Navi 31
GPU Process	7nm	6nm	5nm/6nm	5nm/6nm
GPU Package	Monolithic	Monolithic	MCM	MCM
Shader Engines	4	2	iv (ii per GCD)	6 (3 per GCD)
GPU WGPs	40	xx	40 (20 per GCD)	threescore (30 per GCD)
SPs Per WGP	128	256	256	256
Compute Units (Per Dice)	80	40	lxxx 160 (Total)	120 240 (Total)
Cores (Per Die)	5120	5120	5120	7689
Cores (Total)	5120	5120	10240	15360
Memory Bus	256-bit	128-bit	192-bit	256-fleck
Retentivity Type	GDDR6	GDDR6	GDDR6	GDDR6
Infinity Cache	128 MB	256 MB	384 MB	512 MB
Flagship SKU	Radeon RX 6900 XTX	Radeon RX 7700 XT?	Radeon RX 7800 XT?	Radeon RX 7900 XT?
TBP	330W	~200W	~300W	~400W
Launch	Q4 2020	Q4 2022?	Q4 2022?	Q4 2022?

The AMD RDNA iii 'Navi 3X' GPU-powered Radeon RX graphics menu lineup is expected to offer up to 3x performance improvement over existing RDNA 2 offerings. Information technology would marker a major leap forward for graphics evolution and at present that AMD is already onboard with side by side-gen technologies such every bit FSR and Raytracing, expect a very heated next-gen competition between the red and green teams.

Which next-generation GPUs are yous looking forward to the nearly?

News Sources: Olrak , 3DCenter , Kopite7kimi , Greymon55 , Bullsh1t_buster , TDevilfish , KittyYYuko , 0x22h

Source: https://wccftech.com/amd-rdna-3-navi-32-gpu-radeon-rx-7700-xt-navi-33-gpu-rx-7600-xt-graphics-cards-detailed/

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