Please note that this post is tagged as a rumor .
New day, new RTX 40 specs
The embargoed RTX 40 specifications for board partners certainly do change a lot. Hardware leaker Kopite is reporting on any change to the SKUs being considered for the upcoming models.
Following an update to RTX 4090 and RTX 4070, the RTX 4080 is now in line for an update. It should be noted that RTX 40 specs did change a few times before, the most recent update for RTX 4080 was around June . Kopite has since update the RTX 4090 and RTX 4070 specs, with the only remaining part being 4080.
At least in this case the specs did not change dramatically, there is only an update to CUDA Core specs, now rumored at 9728. This means a downgrade from 80 active Streaming Multiprocessors to 76. It appears that the memory, TDP and performance estimates are all the same.
I'm not a chatterbox, but I have to make some updates. I hope you don't mind.
a possible RTX 4080,
PG136/139-SKU360
AD103-300-A1
9728FP32
256bit 16G 21Gbps GDDR6X
total power ~420W
TSE ~15000
Now I have completed the latest update for 4090, 4080 and 4070.— kopite7kimi (@kopite7kimi) August 5, 2022
The RTX 4080 is so to require 420W of power by default, and it should ship with 16GB 256-bit GDDR6X memory. Judging from new specs, all thus far confirmed high-end RTX 40 models are to feature 21 Gbps modules.
Kopite did not update the 3DMark TimeSpy Extreme score (as he said before those are not estimates but an actual test result). This means that with fewer cores, the clock speed might have gone up, although we do not know the original and current frequency.
The RTX 4080 is expected to be announced at the same time as RTX 4090 which is probably early October.
| RUMORED NVIDIA GeForce RTX 40 Series Specs | |||
|---|---|---|---|
| VideoCardz.com | GeForce RTX 4090 | GeForce RTX 4080 | GeForce RTX 4070 |
| Architecture | Ada (TSMC N4) | Ada (TSMC N4) | Ada (TSMC N4) |
| GPU | AD102-300 | AD103-300 | AD104-400 (?) |
| Board Number | PG139-SKU330 | PG136/139-SKU360 | PG141-SKU331 |
| SMs | 128 | 80 → 76 | 60 |
| CUDA Cores | 16384 | 10240 → 9728 | 7680 |
| Base Clock | 2235 MHz | TBC | TBC |
| Boost Clock | 2520 MHz | TBC | TBC |
| Memory | 24 GB G6X | 16 GB G6X | 12GB G6 |
| Memory Bus | 384-bit | 256-bit | 192-bit |
| Memory Speed | 21 Gbps | 21 Gbps | 21 Gbps |
| Bandwidth | 1008 GB/s | 676 GB/s | 504 GB/s |
| TDP/TGP | ~450W | ~420W | ~300W |
| 3DMark TimeSpy Extreme | ~19,000 | ~15,000 | ~11,000 |
| Launch Date | October 2022 | TBC | TBC |
Source: Kopite7kimi