AMD could equip sooner GDDR6 reminiscence chips on its upcoming high-end Radeon RX 7900 collection graphics playing cards primarily based on Navi 31 “RDNA 3” GPUs.
AMD’s Excessive-Finish Radeon RX 7900 RDNA 3 “Navi 31” Graphics Playing cards Reportedly Have 20Gbps Reminiscence
The newest rumor comes from Greymon55 and states that the quickest Crimson Workforce RDNA 3 GPUs primarily based on the Navi 31 SKU will use sooner GDDR6 reminiscence arrays. AMD’s RDNA 2-powered Navi GPUs include reminiscence speeds of as much as 18 Gbps. 18 Gbps reminiscence was added within the latest RDNA 2 refresh whereas the preliminary lineup used 16 Gbps dies.
Since 7000XT will use 20Gbps, I assume 7x50XT will nonetheless be in 24Gbps+ frequency improve mode.
— Greymon55 (@greymon55) July 30, 2022
It’s mentioned that the Radeon RX 7900 collection, which is able to cowl the high-end phase with its highly effective MCM-based Navi 31 GPU design, will supply reminiscence speeds of as much as 20 Gbps. That is an 11% improve over the quickest reminiscence resolution accessible for AMD Radeon RX 6000 playing cards.
Contemplating the AMD Radeon RX 7900 collection flagship comes with a 384-bit bus interface, we are going to get a 960 GB/s bandwidth resolution and there may be additionally the Infinity Cache bandwidth which needs to be elevated to 384 MB (192 MB customary + 192 MB 3D V-Cache in six MCDs). Current hypothesis has proven that with the brand new MCD Infinity cache construction, the Radeon RX 7900 collection can ship as much as 7 TB/s theoretical bandwidth, which might be a large improve over the 1 TB bandwidth. .79 TB/s at present accessible on RX 6950 XT graphics. map.
An improve to the 7000 collection exists. However the time is comparatively late and I personally suppose the improve to 24 Gbps may be very probably.
— Greymon55 (@greymon55) July 30, 2022
I feel early 2024 is extra probably.
— Greymon55 (@greymon55) July 30, 2022
However that is not all, the leaker additionally says that an RDNA 3 refresh might characteristic the high-end 24 Gbps reminiscence arrays. This is able to yield the identical GDDR6 bandwidth as NVIDIA’s flagship GeForce RTX 3090 Ti graphics card. Even the RTX 4090 Ti is predicted to make use of 24Gbps reminiscence dies, however we’ll see if that plan adjustments sooner or later. As for the anticipated refresh date, it is anticipated in late 2023 or early 2024, so we have now over a yr and the launch of the preliminary AMD RDNA 3 household to attend earlier than we speak about a refreshment. The reminiscence could be outfitted with all of the refreshed fashions.
AMD RDNA 3 Navi 3X GPU Configurations (Preliminary)
GPU identify | Navi 21 | Navi 33 | Navi 32 | Navi 31 | Navi 3X |
---|---|---|---|---|---|
GPU course of | 7nm | 6nm | 5nm/6nm | 5nm/6nm | 5nm/6nm |
GPU package deal | Monolithic | Monolithic | MCM (1 GCD + 4 MCD) | MCM (1 GCD + 6 MCD) | MCM (to be decided) |
GPU die dimension | 520mm2 | ~400mm2 | 440mm2 | 630mm2 | To be decided |
Shader engines | 4 | 2 | 4 | 6 | 8 |
WGP-GPU | 40 | 20-16 | 40-32 | 60-48 | 64 |
SP by WGP | 128 | 256 | 256 | 256 | 256 |
Calculation items (per matrix) | 80 | 40-32 | 160 -128 (Complete) | 240-192 (Complete) | 128 (per GPU) 256 (Complete) |
Cores (per matrix) | 5120 | 5120-4096 | 10240-8192 | 15360-12288 | 8192 |
Hearts (Complete) | 5120 | 5120-4096 | 10240-8192 | 15360-12288 | 16,384 |
Reminiscence bus | 256 bit | 128 bit | 256 bit | 384 bit | 384 bit x2? |
Reminiscence Kind | GDDR6 | GDDR6 | GDDR6 | GDDR6 | GDDR6 |
Reminiscence capability | As much as 16 GB | As much as 8 GB | As much as 16 GB | As much as 24 GB | As much as 32 GB |
Reminiscence pace | 16-18 Gbps | To be decided | To be decided | 20 Gbps | To be decided |
Reminiscence bandwidth | 512-576 GB/s | To be decided | To be decided | 960 GB/s | To be decided |
Infinite Cache | 128 MB | 128 MB | 256 MB | 384 MB | To be decided |
Flagship SKU | Radeon RX 6900 XTX | Radeon RX 7600XT? | Radeon RX 7800XT? Radeon RX 7700XT? |
Radeon RX 7900XT? | Radeon Professional |
PAD | 330W | ~200W | ~300W | ~400W | To be decided |
Launch | This fall 2020 | This fall 2022? | This fall 2022? | This fall 2022? | 2023? |
Information Supply: Videocardz
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