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Rumor mill: Nvidia unveiled next-gen “Blackwell” GPUs for the AI trade again in March, however consumer-centric RTX 50-series playing cards based mostly on the identical platform aren’t anticipated till later this yr. The corporate stays tight-lipped about its upcoming {hardware}, however an enormous leak has seemingly revealed the configurations of all 5 Blackwell RTX 5000 GPUs.
The leak comes from prolific tipster @kopite7kimi, who claims that the top-of-the-line GB202 GPU will function 12 GPCs with eight TPCs every. If the rumor is right, the flagship Blackwell GPU could have 96 TPCs in whole, with every TPC doubtless housing two Streaming Multiprocessors (SMs) for a complete of 192 SMs. The GB202 can be stated to help GDDR7 VRAM with a reminiscence bus interface of as much as 512-bit.
The GB202 is anticipated to energy the RTX 5090, however Nvidia is unlikely to make use of the aforementioned configuration in its flagship gaming card. In response to earlier rumors, the RTX 5090 might function solely a 448-bit reminiscence bus, suggesting that the corporate plans to make use of solely 14 of the 16 reminiscence modules out there on the processor. On-line hypothesis additionally means that the RTX 5090 will function 28GB of GDDR7 reminiscence with a most reminiscence bandwidth of 1568 GB/s.
GB202 12*8 512-bit GDDR7
GB203 7*6 256-bit GDDR7
GB205 5*5 192-bit GDDR7
GB206 3*6 128-bit GDDR7
GB207 2*5 128-bit GDDR6– kopite7kimi (@kopite7kimi) June 11, 2024
Subsequent up is the GB203 GPU, which is anticipated to energy the RTX 5080. It’s rumored to function seven GPCs, every with six TPCs, for a complete of 42 TPCs and 84 SMs. This chip can be anticipated to function a 256-bit reminiscence bus interface.
As for the RTX 5070 and RTX 5070 Ti, they are going to doubtless be based mostly on the GB205, which can include 5 GPCs, every with 5 TPCs, for a complete of 25 TPCs. It should have 50 SMs in all and a 192-bit reminiscence bus interface.
The GB206 is anticipated to energy the RTX 5060 Ti. It should reportedly pack three GPCs, every with six TPCs, for a complete of 18 TPCs and 36 SMs. In contrast to the extra highly effective GPUs within the Blackwell household, the GB206 is alleged to have a comparatively slim 128-bit bus interface, which might end in some efficiency bottlenecks.
It stays to be seen if Nvidia’s reminiscence compression algorithms and bigger L2 caches will be capable of overcome these obstacles and supply mainstream players good worth for his or her cash.
Lastly, the GB207 GPU, which is more likely to energy the RTX 5060 and/or RTX 5050, is rumored to ship with two GPCs, every with 5 TPCs, for a complete of 10 TPCs and 20 SMs. Just like the GB206, this one will reportedly even have a 128-bit reminiscence interface, however not like the remainder of the GPUs within the lineup, it should solely help GDDR6 reminiscence. This selection was presumably made to economize and differentiate between the mainstream and low-end SKUs with out chopping down the specs any additional.
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