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An RTX 3080 @2.1Ghz exceeds the performance of the RTX 3090 @ 1.7Ghz

g67575

g67575

g67575

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RTX 3080 @2.1 GHz

36.5 TFlops

Pixel Rate: 201.6 GPixel/s

Texture Rate: 571.2‬ GTexel/s

All three of these performance stats are higher than the RTX 3090 @ 1.7Ghz!

UPDATE - a 25% higher memory clock of 1485 would result in:

Memory bandwidth: 950.4 GB/s

RTX 3090 specs here:
https://www.techpowerup.com/gpu-specs/geforce-rtx-3090.c3622

So, if its possible to clock the RTX 3080 this high, or buy a 2.1GHz model (+22.8% overclock), you would get similar performance for a LOT less money (with less VRAM too though :( )
No wonder there is no RTX 3080 TI...
 
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What this means is, you would likely get similar, or perhaps a bit better performance from an overclocked RTX 3080 vs a RTX 3090 at base clocks, as long as you use less than 10GB of RAM. So, 3080 overclocked is an excellent choice for 4K resolution.
 
Nope, it can be easily worked out.

Obviously, a RTX 3090 @ 2.1ghz is still gonna be a lot faster than any RTX 3080, but for a massive increase in price.
 
Good point. Does anyone know how important GPU memory bandwidth is for performance in modern GPUs?

EDIT - Overclocking the memory would increase the memory bandwidth too, not sure how much of an increase would be needed though.
 
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To calculate total memory bandwidth, you divide the memory speed by 8 (19gbps) to convert it , which is 2.375 GBytes per second. Then multiply this number by the memory bus speed, which is 320 bits.

Total Memory bandwidth for the RTX 3080 = 760GB/s (which we already know)

Not sure not how the memory clock translates into the memory speed though...

Edit - So you multiply the memory clock by x 2, then multiply the result by the bus width to get the total memory bandwidth.
 
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Kaapstad said:
Only one small snag with this.

A RTX 3090 will never run as slow as 1.695Ghz, it will boost far higher just like the Turing cards do.
Click to expand...

1. Yes if you can afford one
2. But - Only if cooling will allow for it (e.g. if you wanna spend even more on a RTX 3090 with a hign end cooler). I heard non reference / custom 3090s are gonna be sold for ~$2000.

I really doubt the temps are gonna be the same as the RTX 2080 TI, as the RTX 3090 has a 100w higher TDP.
 
I'm comparing the RTX 3080 @2.1Ghz (and overclocked memory) vs the RTX 3090 at base clocks.
That's because an overclocked RTX 3080 should be far more affordable than the RTX 3090.

I didn't mention the overclocked RTX 3090...
 
I also found that the RTX 3080 clocked @ 2050 Mhz would be equal (or a tiny bit ahead) of an RTX 3090 @ base clocks, in terms of TF count, pixel rate and texture rate.

I'm just using the info / stats listed on Techpowerup, personally don't see the point in comparing to an overclocked RTX 3090 (we know what would win), the point is to see if a much cheaper overclocked GPU can offer similar performance to an RTX 3090 running at the specified Boost clocks.
 
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Sure, there will be some variation on the boost clocks of the RTX 3090. The point is that a factory overclocked model could be about as fast as an RTX 3090 @1.7Ghz - That is the boost clock that Nvidia is guaranteeing all RTX 3090s can run at. You *might* get higher than this on the reference model.

We have no way of knowing at this point what the max boost clocks of every RTX 3090 will be.

We can debate about the values of boost clocks all day, and the silicon lottery but the fact above remains.
 
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I don't disagree, based on the specs, the RTX 3090 will perform very well. It really is totally fine if you want to buy one :D . But some will be on the fence I'm sure
 
That's good to know, at least some RTX 3080s should boost well then (as some RTX 3090s have reached 2.1Ghz apparently).

I'm not feeling much love for the RTX 3080 tbh...
 
I think the odd thing is many of you are assuming substantially higher boost clocks for the reference RTX 3090. There is a reason Nvidia claims it is 1.7ghz on the flagship 3090, they wouldve put it higher if all of them could achieve it. Hence, I use this number - you can hope for more but it does not necessarily make it so :rolleyes:

its kind of impossible to try to objectively compare performance if each person insists on using different numbers :confused:

The higher quality chips that boost significantly higher will be used in the factory overclocked graphics cards, that is what always happens. There is an opportunity to charge a lot more for the factory overclocked models, especially at the top end.
 
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Well, I agree with you. they might sell fewer RTX 3090s if some factory overclocked RTX 3080s @ 2.1ghz could compete with reference RTX 3090s.

I have no idea if we will see higher clocked RTX 3080s, but it was interesting to compare a hypothetical overclocked 3080, even so.

It also makes me doubt if we will see a RTX 3080 TI or super any time soon.

EDIT - another thought that occurs me is that most Nvidia graphics cards might be able to clock 5-10% higher than their specified boost clock. So, reference RTX 3090s might be able to clock to 1785 - 1870mhz. But this is just a rule of thumb.
 
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