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There have been some updates on the rumored specs of the upcoming RTX 40 series graphics cards. Kopite7kimi on Twitter is known for providing good information about what the new versions have to offer. The new rumor brings updated RTX 4090 specs and also gives an idea of the RTX 4080 and RTX 4070. A first look at what some cheaper options have to offer.
While the card series has yet to be announced, we expect it to come out in the second half of 2022. With rumors pointing to September/August, we’ll be hearing more about what they offer in the coming months. So we’ll keep you updated on what to expect when the time comes.
Specifications of the RTX 40 series
From previous rumors, the 4090 had a slight increase in CUDA cores. Increased from 16,128 to 16,384 cores, upgraded from 126 streaming multiprocessors to 128. While this may not be the full extent of the AD102 GPU, it’s what to expect from the original flagship. Which also comes with 24GB of GDDR6X memory, with a 384-bit bus clocked at 21Gbps. All this together with a TDP of 450 W, just like the current RTX 3090 Ti.
Now for the RTX 4080 specs, kopite7kimi tells us that they will be made with the AD103-300 GPU variant. This gives the card 80 SMs with 10,240 CUDA cores. And comes with a 256-bit memory bus, but the memory details are where the leaker is unsure. With the possibility of 16 GB of GDDR6 memory clocked at 18 Gbps. This might be questioned as it would effectively be slower than what the RTX 3080 with GDDR6X 19Gbps had to offer. But the 4080 is expected with an increased TDP of 420W vs. 320.
Last but not least, there are some rumors surrounding the RTX 4070 specs. It is expected to use the AD104-275 GPU variant. Featuring 7,168 CUDA cores along with a 160-bit memory bus for the 10GB of GDDR6 memory clocked at 18Gbps. However, to be expected with a significantly lower TDP compared to the rest with 300 W. The map is also expected to be the last to launch with the tiered releases of the Ada series. Starting with the 4090 in Q3, the 3070 could appear in early Q4.
| RTX4090 | RTX4080 | RTX4070 | |
|---|---|---|---|
| graphic card | 102-300 AD | 103-300 AD | 104-275 AD |
| board number | PG139-SKU330 | PG139-360 | PG141-SKU341 |
| SMS | 128 | 80 | 56 |
| CUDA cores | 16,384 | 10,240 | 7.168 |
| compared to predecessor | +56% | +18% | +21% |
| memory | 24GB GDDR6X | 16GB GDDR6 | 10GB GDDR6 |
| memory bus | 384-bit | 256-bit | 160-bit |
| memory speed | 21 Gbps | 18 Gbps | 18 Gbps |
| TDP | 450W | 420W | 300W |