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[WCCF] AMD RX 480 Can Hit 1.5Ghz+, New Overclocking Tool With Voltage Control Coming - Page 167  

post #1661 of 2870
Quote:
Originally Posted by lolerk52 View Post

Well, actually, while I do agree TFLOPS comparison are a bad way to do these things, that TFLOPS number is using base clock.
With boost lock, it's 5TFLOPS, and Maxwell cards pretty much always hit a lot higher than their rated boost clock.

Though don't even start looking at GM200 and Fiji, it's a really bad comparison considering how incredibly bottlenecked Fiji was in so many areas.

This is true. You are correct. However, Nvidia says the GTX 1070 has 6.5 TFLOPS of performance. and this is for the base clock of 1500mhz. My GTX 1070 stabilizes at around 1800mhz boost, stock, so real world, The GTX 1070 gets about 7.8 TFLOPS of performance at stock.

Here's a link to Anandtech's 2016 GPU bench that shows a GTX 980 vs 1070, both at stock.

http://www.anandtech.com/bench/product/1716?vs=1731

Bear in mind, the 1070 also overclocks around 10% higher, and because of the recent leaks saying that the RX 480 will ONLY hit around 1350mhz on ref cooler, that means that both cards will overclock very similarly.



That graph does prove one thing, though. If the RX 480 does match the 980, then it will be one hell of a value. But will it be able to match the GTX 1070 with a 40%+ overclock? That's very unlikely.
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post #1662 of 2870
Wonder why no one posted these screen caps:


What are you guys thoughts ?
post #1663 of 2870
Quote:
Originally Posted by Mad Pistol View Post

This is true. You are correct. However, Nvidia says the GTX 1070 has 6.5 TFLOPS of performance. and this is for the base clock of 1500mhz. My GTX 1070 stabilizes at around 1800mhz boost, stock, so real world, The GTX 1070 gets about 7.8 TFLOPS of performance at stock.

Here's a link to Anandtech's 2016 GPU bench that shows a GTX 980 vs 1070, both at stock.

http://www.anandtech.com/bench/product/1716?vs=1731

Bear in mind, the 1070 also overclocks around 10% higher, and because of the recent leaks saying that the RX 480 will ONLY hit around 1350mhz on ref cooler, that means that both cards will overclock very similarly.



That graph does prove one thing, though. If the RX 480 does match the 980, then it will be one hell of a value. But will it be able to match the GTX 1070 with a 40%+ overclock? That's very unlikely.
I think your math is wrong somewhere?
1920 CUDA cores * 2 * 1800MHz = 6,912,000

That's 6.9 TFLOPS, not 7.8.
7.8 TFLOPS would be about 2.05GHz.

Assuming AMD caught up in TFLOPS to real world performance, an RX 480 at 1500MHz would match a GTX 1070 at 1800MHz.
Edited by lolerk52 - 6/25/16 at 7:57am
post #1664 of 2870
Quote:
Originally Posted by lolerk52 View Post

I think your math is wrong somewhere?
1920 CUDA cores * 2 * 1800MHz = 6,912,000

That's 6.9 TFLOPS, not 7.8.
7.8 TFLOPS would be about 2.05GHz.

Hmmmmmm...

1800mhz*6.5= 11700

11700/1500= 7.8


Proof: 1500/6.5= 230.8
Proof: 1800/7.8=230.8


Gotta love proportional fractions. My math lines up. thumb.gif
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post #1665 of 2870
Quote:
Originally Posted by Mad Pistol View Post

Hmmmmmm...

1800mhz*6.5= 11700

11700/1500= 7.8


Proof: 1500/6.5= 230.8
Proof: 1800/7.8=230.8


My math lines up. thumb.gif
ehh,

just use this

# of cores x 2 x frequency. what nvidia states is irrelevant.
post #1666 of 2870
Quote:
Originally Posted by Mad Pistol View Post

Hmmmmmm...

1800mhz*6.5= 11700

11700/1500= 7.8


Proof: 1500/6.5= 230.8
Proof: 1800/7.8=230.8


Gotta love proportional fractions. My math lines up. thumb.gif
https://www.techpowerup.com/gpudb/2840/geforce-gtx-1070

It's 5.78 TFLOPS at base clock, 6.5 TFLOPS at boost clock.
1920 * 2 * 1506 = 5,783,040
1920 * 2 * 1683 = 6,462,720
post #1667 of 2870
Quote:
Originally Posted by lolerk52 View Post

https://www.techpowerup.com/gpudb/2840/geforce-gtx-1070

It's 5.78 TFLOPS at base clock, 6.5 TFLOPS at boost clock.
1920 * 2 * 1506 = 5,783,040
1920 * 2 * 1683 = 6,462,720

Good enough for me. I stand corrected. More of the reason why we shouldn't be comparing TFLOPS as a reliable performance metric. thumb.gif

Still if we are doing comparisions, check the GTX 980 vs 1070 Anandtech bench I posted.

EDIT: http://www.anandtech.com/bench/product/1716?vs=1731
Edited by Mad Pistol - 6/25/16 at 8:04am
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post #1668 of 2870
Quote:
Originally Posted by Mad Pistol View Post

Good enough for me. I stand corrected. thumb.gif

Still if we are doing comparisions, check the GTX 980 vs 1070 Anandtech bench I posted.

EDIT: http://www.anandtech.com/bench/product/1716?vs=1731
Looks like 1070 is 31% faster in a GPU bound scenario like Crysis 3.
You're saying your 1070 is hitting 1800MHz boost, so...

6.9 TFLOPS / 1.31 = ~5.3 TFLOPS
GTX 980 is hitting 5.3 TFLOPS usually without overclocking, which is about 1300MHz.

390x being at 5.9TFLOPS, doesn't look like the effective gaming performance vs TFLOPS is THAT different, though definitely NVIDIA is better at that. We'll see what architectural improvements Polaris brings.
Edited by lolerk52 - 6/25/16 at 8:12am
post #1669 of 2870
Quote:
Originally Posted by GoLDii3 View Post

Announced on May 7,NDA retired the 17th and sold the 27th. Completely paper launch. Deal with it.
Sold on 27th June? I guess that seems about right biggrin.gif
It was a typical hype marketing presentation launch with endless wait and unreal prices.
post #1670 of 2870
Quote:
Originally Posted by lolerk52 View Post

Looks like 1070 is 31% faster in a GPU bound scenario like Crysis 3.
You're saying your 1070 is hitting 1800MHz boost, so...

6.9 TFLOPS / 1.31 = ~5.3 TFLOPS
GTX 980 is hitting 5.3 TFLOPS usually without overclocking, which is about 1300MHz.

And yet the 1070 is significantly faster than the 980. More of a reason why TFLOPS should not be used as a metric for performance.

Anyway, I cannot wait to see how the RX 480 performs. If it hits GTX 980 levels of performance for $200-230, it will be a huge win. thumb.gif
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