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Rumor | NVIDIA 5 nm Lovelace AD102 (RTX 4080/4090?) specs leak, looks to be a monster GPU with 18,432 CUDA cores and nearly 66 TFLOPs of FP32 performance

NVIDIA Lovelace AD102 GPU will launch before Hopper. (Image Source: NVIDIA)
NVIDIA Lovelace AD102 GPU will launch before Hopper. (Image Source: NVIDIA)
Specs of NVIDIA's Ampere successor codenamed Lovelace seem to be already available and all signs point to a monster of a GPU. Going by initial rumors, it seems that the AD102 GPU will have 2x the number of GPCs compared to Turing and a 71% higher CUDA core count compared to Ampere, which seemingly yields nearly 66 TFLOPs of FP32 horsepower.

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NVIDIA's Ampere launch is still pretty fresh with many prospective buyers not being able to buy them even nearly four months after launch. However, NVIDIA is on a fast track to develop Ampere's successor. Though initially thought to be Hopper, we are now learning that Lovelace (named after British mathematician Ada Lovelace) is the architecture that is next in line after Ampere, and the initial specs already seem pretty droolworthy. 

Reports are coming in of a possible AD102 GPU in the works. First revealed by known leaker @kopite7kimi, the good folks over at 3DCenter have deduced some of the specs of the upcoming GPU. According to 3DCenter, NVIDIA AD102 will sport 2x the graphics processing clusters (GPCs) of Turing i.e. 12. This indicates that AD102 may house as many as 72 texture processing clusters (TPCs) and 144 streaming multiprocessors (SMs).

This eventually means that we might see a total of 18,432 CUDA cores — a 71% increase compared to Ampere's GA102 die. Assuming a clock speed of about 1.8 GHz, we can see that NVIDIA Lovelace could theoretically offer nearly 66 TFLOPs of FP32 single-precision performance. 

Of course, such massive core counts means a shift to a 5 nm process. The question remains whether NVIDIA will continue with Samsung or go with TSMC. There were reports of NVIDIA pre-booking TSMC's 5 nm capacity for 2021 while also leveraging Samsung for low-volume orders.

NVIDIA Lovelace could be a stop-gap solution branded as the RTX 40 series until a total architecture revamp sees the light of the day in the form of Hopper, which is expected to be a multi-chip module (MCM). It is also possible that Hopper would be restricted to datacenters as well, but it is too early to speculate.

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Source: 3DCenter via Videocardz
Lovelace AD102 Ampere GA102 Turing TU102
Process Samsung 5nm (?) Samung 8 nm TSMC 12 nm
Graphics Processing Clusters 12 7 6
Texture Processing Clusters 72 42 36
Streaming Multiprocessors 144 84 72
CUDA Cores 18,432 10,752 4,608
FP32 at 1.8 GHz 66.4 TFLOPs 38.7 TFLOPs 16.6 TFLOPs
Memory Bus 384-bit (?) 384-bit 384-bit
Memory Type GDDR6X (?) GDDR6X GDDR6

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Vaidyanathan Subramaniam
Vaidyanathan Subramaniam - Managing Editor - 1395 articles published on Notebookcheck since 2012
Though a cell and molecular biologist by training, I have been drawn towards computers from a very young age ever since I got my first PC in 1998. My passion for technology grew quite exponentially with the times, and it has been an incredible experience from being a much solicited source for tech advice and troubleshooting among family and friends to joining Notebookcheck in 2017 as a professional tech journalist. Now, I am a Lead Editor at Notebookcheck covering news and reviews encompassing a wide gamut of the technology landscape for Indian and global audiences. When I am not hunting for the next big story or taking complex measurements for reviews, you can find me unwinding to a nice read, listening to some soulful music, or trying out a new game.
contact me via: @Geeky_Vaidy
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2020 12 > NVIDIA 5 nm Lovelace AD102 (RTX 4080/4090?) specs leak, looks to be a monster GPU with 18,432 CUDA cores and nearly 66 TFLOPs of FP32 performance
Vaidyanathan Subramaniam, 2020-12-28 (Update: 2020-12-28)