NVIDIA Blackwell GB202, GB203, GB205, GB206 GPUs For GeForce RTX 50 To Feature Same GPC Count As Ada Chips

Some new details regarding the NVIDIA GeForce RTX 50 “Blackwell” GPUs have been revealed by Kopite7kimi which suggest a similar GPC count.

NVIDIA GeForce RTX 50 “Blackwell” & RTX 40 “Ada” GPUs Might Share The Same GPC Counts

NVIDIA’s GeForce RTX 50 “Blackwell” gaming cards will feature new dies based on the latest architecture. These dies include the GB202, GB203, GB205, GB206 and GB207. NVIDIA will offer diverse SKUs of these GPU dies, each targeting a different product segment, but will mostly target the client and consumer segment.

I found some friends getting bored with Jensen’s presentation today.
I will say GB20x will have the same GPC count than AD10x except GB207 and AD107.

— kopite7kimi (@kopite7kimi) June 2, 2024

Due to the order of product development, we will not see finished products other than GB202 and GB203 in the short term, we will not discuss GB205, GB206, and GB207 at this time.
I feel sorry to everyone, GB203 is not 6*8, but 7*6, similar to AD103. 😅

— kopite7kimi (@kopite7kimi) June 2, 2024

According to the reputable, Kopite7kimi, it looks like we have a bit more information on how NVIDIA would finalize the design of these SKUs. Starting off with the details, it is reported that NVIDIA will use the same GPC counts as the existing Ada lineup which means we’re looking at the following configurations:

• GB202 (AD102 Successor) -> 12 GPCs (8×2 SMs)
• GB203 (AD103 Successor) -> 7 GPCs (6×2 SMs)
• GB205 (AD104 Successor) -> 5 GPCs (TBD)
• GB206 (AD106 Successor) -> 3 GPCs (TBD)

Earlier, it was reported that NVIDIA’s GB203 GPU would be half of GB202 so essentially, GB202 was meant to be two GB203 dies but that doesn’t looks to be the case anymore. Furthermore, it is also clarified that the recent rumor of the RTX 5090 featuring a 448-bit bus interface could be a possible SKU and not a final design. It was originally expected to feature a 512-bit bus interface and up to 32 GB of GDDR7 memory.

A possible SKU.

— kopite7kimi (@kopite7kimi) June 2, 2024

Yes.

— kopite7kimi (@kopite7kimi) June 2, 2024

As for the SM counts, NVIDIA did have 128 cores per dual-SM units in its Ada Lovelace GPUs. The AD102 flagship had a total of 12 GPCs and 6×2 SMs per GPC for a total of 144 SM units. It looks like GB202 is going to offer increased SM units with 8×2 SMs per GPC for up to 192 SMs. We don’t know if NVIDIA will incorporate 128 or more core counts per SMs for Blackwell but for now, it looks like each chip will at least have the same GPC count as Ada.

NVIDIA GeForce GPU SKUs:

Lastly, it is mentioned that only the entry-level GB207 will not have the same GPC count as its AD107 predecessor. Only the Blackwell GB202 and GB203 GPUs for GeForce RTX 5090 and RTX 5080 are so far expected to launch this year while GB205, GB206 and GB207 are going to be unveiled in 2025 to target gaming masses.

NVIDIA is definitely cooking up its GeForce RTX 50 “Blackwell” GPUs that should deliver some nice gains in graphics performance for the enthusiast segment. The launch of the first high-end cards is said to be planned for Q4 2024 so expect more information in the coming months.