Latest RTX 4080 Specification Adds Faster Memory and Higher TBP

Rumor mill: We’ve heard a lot of rumors about Nvidia’s upcoming RTX 4000 series, although most of them seem to revolve around the RTX 4070, its Ti variant, and the RTX 4090. The ultimate, but not exactly flagship, RTX 4080 that sounds like it’s going to be the ultimate card -the beast.

As usual, the new rumor about Ada Lovelace comes from the Twitter account of the prolific and accurate (when it came to Ampere) insider Kopite7kimi (via Videocards). They have posted what are claimed to be updated specs for the RTX 4080 with significant changes regarding memory speed and TDP of the card.

The RTX 4070, 4080, and 4090 were expected to use 21Gbps GDDR6X modules – they were mentioned in this month’s update on Micron’s website – but the RTX 4080 is now thought to be 23Gbps. If the rumors are true, the RTX 4090 will likely feature the same 23Gb GDDR6X.

The next revised spec is RTX 4080 Board Total Power (TBP). This is one area that liquors are changing every week. It was originally said to draw a whopping 450 watts, but this has recently been changed to 320 watts. According to Kopite7kimi, Nvidia has again increased the TBP of the RTX 4080, albeit by only 20W, leaving the new value at 340W. In comparison, the RTX 3080 Ti Founders Edition is rated at 350W.

The rest of the RTX 4080 specs remain unchanged: AD103 GPU, 9728 CUDA cores, and 16GB of memory on a 256-bit bus.

Another part of the August update on Micron’s website was the listing of 24Gbps GDDR6X. This could end up being what is believed to be a new Titan card previously rumored to contain 48GB of VRAM, 18,176 CUDA cores, and 800 TDP.

Nvidia is experimenting with the specs of its upcoming cards as launch dates approach, which is why they seem to change so often; we may not see final, fixed specs until after launch. The good news is that this day is only a few months away.

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