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Forums - Microsoft - Xbox One CPU Clocks In At ~1.9GHz

MB1025 on 29 August 2013
Hynad said:
crissindahouse said:
superchunk said:
crissindahouse said:

yes and i said "how doesn't it"

lol oops, guess I can reel back in my snarky-ness.

The grand point of it all is unchanged. PS4 is still more powerful in every manner. Additionally, games FAR more defined by what the GPU can do than by the CPU. So even if this 1.9GHz is semi-accurate (pun intended), it won't make a bit of difference in the potential differences in games between PS4 and Xbone.

Facts are PS4 can very well have games that look / run better than Xbone regardless if Xbone's CPU is 1.6GHz or 1.9GHz.

This entire thread is pointless in the grand scheme of things. Especially considering its someone's best guess based on a report of other information.

i editided both of my previous posts while you quote me^^

sure it is not much but still, if we forget once the whole xbox vs. playstation stuff and only think about people who buy an xbox one it can change something for them. maybe not much but a cpu with 1.9ghz instead of 1.6 can help developers and if it's only a little bit. 

nobody will jump from ps4 to xbox one because of that but those who plan to buy an xbox one should be happy about it if true. 

As far as I know, Sony hasn't revealed the PS4's CPU clock speed yet.


This is what I find interesting. The "leaks" state it is 1.6 and for the most part people kept throwing around those numbers because they were "spot on" from VGLeaks. Now Xbox One is rumored (i guess this is what it is) and now we are going to wait for Sony to announce numbers.



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Hynad on 29 August 2013
MB1025 said:
Hynad said:
crissindahouse said:
superchunk said:
crissindahouse said:

yes and i said "how doesn't it"

lol oops, guess I can reel back in my snarky-ness.

The grand point of it all is unchanged. PS4 is still more powerful in every manner. Additionally, games FAR more defined by what the GPU can do than by the CPU. So even if this 1.9GHz is semi-accurate (pun intended), it won't make a bit of difference in the potential differences in games between PS4 and Xbone.

Facts are PS4 can very well have games that look / run better than Xbone regardless if Xbone's CPU is 1.6GHz or 1.9GHz.

This entire thread is pointless in the grand scheme of things. Especially considering its someone's best guess based on a report of other information.

i editided both of my previous posts while you quote me^^

sure it is not much but still, if we forget once the whole xbox vs. playstation stuff and only think about people who buy an xbox one it can change something for them. maybe not much but a cpu with 1.9ghz instead of 1.6 can help developers and if it's only a little bit. 

nobody will jump from ps4 to xbox one because of that but those who plan to buy an xbox one should be happy about it if true. 

As far as I know, Sony hasn't revealed the PS4's CPU clock speed yet.


This is what I find interesting. The "leaks" state it is 1.6 and for the most part people kept throwing around those numbers because they were "spot on" from VGLeaks. Now Xbox One is rumored (i guess this is what it is) and now we are going to wait for Sony to announce numbers.

At this point, do people still care about those "leaks"?

I don't. I wish Sony would do a rundown of the PS4 hardware like MS did at HotChips.



curl-6 on 29 August 2013

Clockspeed matters fuck all these days, as evidenced by Wii U's 1.2GHz CPU being around 1/3 as fast as the 3.2GHz PS3 and 360 CPUs yet clearly being more than 1/3 as powerful, and actually surpassing them in some respects.

Factors like cache, IPC, pipeline length, number of cores, etc make a big difference.

Xbone's CPU will do just fine at 1.9GHz



superspeedybull on 29 August 2013
Adinnieken said:
This means the Xbox One's CPU has more Flops than the PS4's does.

Remember the PS4 Devkits came in clocked at 2.7Ghz.. so what you said in theory is incorrect. 



DM235 on 29 August 2013
superspeedybull said:
Adinnieken said:
This means the Xbox One's CPU has more Flops than the PS4's does.

Remember the PS4 Devkits came in clocked at 2.7Ghz.. so what you said in theory is incorrect. 


That was a maximum clock rating.  That does not guarantee that the CPU will run at that speed.  It is actually highly unlikely that it would run at that speed.  If anything, that could be the 1-core max turbo speed.



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Captain_Tom on 29 August 2013
ethomaz said:
DM235 said:
I know that everyone keeps saying the CPU clock will be between 1.6 GHz and 2.0 GHz, but the official AMD specs for a Jaguar CPU with a GPU are 1.1 GHz to 1.9 GHz.

Mind you, AMD says the GPU has a max of 600 MHz, and Microsoft has already announced that they are using 853 MHz.

http://www.amd.com/us/products/server/processors/2100seriesplatform/Pages/x2150seriesprocessors.aspx

That was the AMD commercial APUs... the Jaguar Arch can go up to 2.2Ghz (or a little more)... the GPU can go up 1.2Ghz.


In a leaked spec sheet it said that the PS4 runs at 2.75 GHz.  Do you think it is possible they could have clocked the Jaguar clusters that high?  It would be awesome, but personally I think they were referring to the RAM speed because 2.75x2=5.5GHz which is coincidentally the speed of the PS4's memory...



Captain_Tom on 29 August 2013
papamudd said:
I would have thought the cpu speeds would be a lot higher than thus on both consoles... I mean i bought a cheap processor for like 60 bucks that ruins over 3.0ghz


Does it have 8 cores lol?



DM235 on 29 August 2013

Anyone else here familiar with AMD architectures? I understand how SemiAccurate came up with their prediction of a 1.9 GHz clock based on the transfer rate between the Northbridge and the DRAM Controller, and the assumption that the CPU must run at a fixed multiplier to the Northbridge clock.

Ethomaz believes that the CPU could run at an arbitrary multiplier to the Northbridge clock, but I cannot find any documentation that says so.



ethomaz on 29 August 2013

Captain_Tom said:

In a leaked spec sheet it said that the PS4 runs at 2.75 GHz.  Do you think it is possible they could have clocked the Jaguar clusters that high?  It would be awesome, but personally I think they were referring to the RAM speed because 2.75x2=5.5GHz which is coincidentally the speed of the PS4's memory...

PS4 GDDR5 runs at 2.75Ghz... that's what FCC specs says.



ethomaz on 29 August 2013
DM235 said:
Anyone else here familiar with AMD architectures? I understand how SemiAccurate came up with their prediction of a 1.9 GHz clock based on the transfer rate between the Northbridge and the DRAM Controller, and the assumption that the CPU must run at a fixed multiplier to the Northbridge clock.

Ethomaz believes that the CPU could run at an arbitrary multiplier to the Northbridge clock, but I cannot find any documentation that says so.

Northbridge clock runs synced with memory clock... not CPU... you can change it in APUs for any value (NCLK in BIOS).

"The NorthBridge typically trails the memory clock (not to be confused with data rate); for example, at DDR3 1333 with a memClk of 667 MHz, the NB Clock (NCLK) will be running at the next lower divider clock, in this case 654 MHz, at DDR3 1600, the NClk will increase automatically to 800 MHz and so on. Since the A series natively supports memory data rates of up to 1866, the NClk is unlocked in all A-series APUs."

http://www.lostcircuits.com/mambo//index.php?option=com_content&task=view&id=104&Itemid=42&limit=1&limitstart=1

"AMD Radeon™ Memory Bus (RMB) Runs on Northbridge clock (NCLK)"

http://www.hotchips.org/wp-content/uploads/hc_archives/hc23/HC23.19.9-Desktop-CPUs/HC23.19.930-Llano-Fusion-Foley-AMD.pdf