I am unable to look ahead to subsequent week to roll round and for us to lastly get some concrete numbers about Nvidia’s new RTX 40-series graphics cards (opens in new tab), as a result of I can’t deal with all of the ‘holy heck, if that is true…’ rumours popping up each single day.
The most recent is that the AD102 anticipated to be powering the RTX 4090 (opens in new tab) goes to have 165% extra transistors than the freakishly beefy GA102 monster that ran the RTX 3090 Ti (opens in new tab). Sure, yet one more tweaker has come out with some GPU quantity porn: here is @kopite7kimi (opens in new tab) claiming that Nvidia’s full-fat Lovelace chip goes to be sporting greater than 75 billion transistors.
For a full body of reference, the RTX 3090 Ti’s GPU homes 28.3 billion transistors inside its huge 628mm² die, and the Navi 21 chip inside AMD’s RX 6950 XT (opens in new tab) is available in at 26.8 billion in a 520mm² die.
I get that the Lovelace GPU of the RTX 40-series goes to function with a smaller TSMC N5 (nominally 5nm) manufacturing course of, versus the Samsung 8nm and TSMC N7 (7nm) lithography of our reference chips above, however nonetheless, that is going to be a completely monumental graphics processors.
Absolutely proper on the reticle limits; as massive a GPU as it’s bodily doable to fabricate with at present’s expertise.
On condition that the RTX 4090 is anticipated to supply one thing within the area of twice the efficiency of the RTX 3090 (opens in new tab), you’d count on it to be larger. However this means Nvidia has wanted to throw an entire lot extra logic on the drawback to have the ability to high its earlier greatest GPU to this degree.
The transistor quantity has come from an replace to an previous tweet of the serial Twitter leaker. Again in April they arrange a Twitter ballot asking customers to guess what number of transistors (“xtors”) the AD102 GPU would have. The choices had been 40–50 billion, 50–60 billion, 60–70 billion, and 70–80 billion.
Simply over 39% of respondents went for the latter choice, which @kopite7kimi has now acknowledged is “the suitable selection.”
Bear in mind this. 😁Most individuals made the suitable selection. Greater than 75B.September 13, 2022
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Actually, that is fairly startling. Not that 39% have supposedly acquired it proper, however that Nvidia is absolutely going to create a consumer-facing GPU with such an enormous quantity of leading edge silicon inside it. I imply, that is some actual brute pressure, sledgehammer graphics card creation stuff proper right here.
And positive to be priced to match.
As soon as once more I’ve to return to the novelty-size graphics card seems to be of the RTX 3090 Founders Version within the system in entrance of me proper now. That card all the time makes me giggle after I truly take the time to take a look at it. It is frankly a ridiculous-size graphics card.
Fingers crossed the RTX 4090 seems to be an entire lot extra elegant a tool when it lastly hits the limelight at Nvidia’s GeForce Beyond Special Broadcast (opens in new tab) on Tuesday September 20.
| RTX 4090 | RTX 4080 | RTX 4070 | |
| GPU | AD102-300 | AD103-300 | AD104-400 |
| CUDA Cores | 16384 | 9728 | 7680 |
| Base Clock | 2235 | N/A | N/A |
| Increase Clock | 2520 | N/A | N/A |
| Reminiscence Bus | 384-bit | 256-bit | 192-bit |
| Reminiscence Kind | 24GB GDDR6X | 16GB GDDR6X | 12GB GDDR6X |
| Reminiscence Pace | 21Gbps | 23Gbps | 21Gbps |
| TDP | 450W | 340W | 285W |
