NVIDIA is rumored to be eyeing multiple versions for two of its upcoming GeForce RTX 40-series graphics cards. The latest rumor involves the GeForce RTX 4080. This card is now said to be offered with both 12 Gb and 16 GB of memory. The former is also said to feature a 10-layer PCB while the latter will get a 12-layer PCB. If true this would at least in part follow the pattern seen with the Geforce RTX 3080. That card came in not one or two but four variants with 10 GB, 12 GB, 16 GB, and 20 GB of memory. NVIDIA has been well known for designing multiple versions of its graphics cards going all the way back to its Maxwell line.
4080 12G GD6X 10layer PCB aic reference design— MEGAsizeGPU (@Zed__Wang) September 5, 2022
4080 16G GD6X 12layer PCB aic
4090 24G GD6X 14layer PCB aic reference design
note：4080 12G has a completely different pcb design from 4080 16G
NVIDIA is also rumored to be considering two different versions of the GeForce RTX 4070 as well. These potential SKUs indicate not only different VRAM but also other different specifications.
Review the two possible specs of RTX 4070:— kopite7kimi (@kopite7kimi) August 29, 2022
PG141-SKU340/341, 7680FP32, 12G 21Gbps GDDR6X, total card power 285W, TSE <11000.
PG141-SKU336/337, 7168FP32, 10G 21Gbps GDDR6X, total card power 250W, TSE <10000.
I found that I had made a typo before, mistaken wrote 341 as 331. 😅
- SKU 340/341 – A fully enabled AD104 GPU (AD104-400) with 7680 CUDA cores and 12 GB of memory on a 192-bit bus with 285 W TDP.
- SKU 336/337 – Possibly a cut-down version of the AD104 GPU with 7168 CUDA cores and 10 GB of memory on a 160-bit bus with 250 W TDP.
NVIDIA GeForce RTX 40 series launch imminent?
The countdown is on as NVIDIA is expected to begin officially revealing its RTX 40-series in the coming weeks and months. It is believed that NVIDIA founder and CEO Jensen Huang will share more details on the ADA architecture used for the Ampere lineup on September 20. Previously it was thought that the first Ampere cards could launch this fall but other rumors painted a picture of retailers sitting on massive amounts of backstock of RTX 30 series cards needing to be sold first. Regardless of if true or not many cards have seen significant discounts in recent weeks. Perhaps the next generation will arrive soon.