Seen this on Gaf and found it funny.

So if we update the console power to DBZ level..

PS4:


XBone:


WiiU:

This news should bode well for the XOne. It still doesn't make it as fantastic as PS4 because of the unified memory pool, but should be better then we had originally anticpiated which is good. Not sure if they will hit that theoretical target though.

192gb/s (theoretical) to 32mb memory and PS4 176GB/s to 8Gigabytes of unified memory pool.

http://www.amd.com/us/products/technologies/gddr5/Pages/gddr5.aspx#1

Under footnotes:

"Based on internal ASIC power measurement data from the AMD Radeon™ HD 6490M 1GB GDDR5 @ 750MHz (engine clock)/800 MHz (memory clock) = 16.5W vs. AMD Radeon™ HD 6470M 1GB DDR3 @ 750MHz (engine clock)/900 MHz (memory clock) = 14.9W."

These are low end mobile chips. That discrepancy only grows when you start adding more powerful GPUs. PS4 is most likely utilizing 1 Ghz memory clock GDDR5 RAM, while Xbox One is using 1066 Mhz for its DDR3 ram. You could argue that ESRAM may add more power usage for Xbox One though...

No it doest...post me a single link which states that GDDR5 uses less power at same clock speed as DDR3.

This is what i read on Eurogamer... which sounds similar... i personally don't understand it:

Doesn't this sound like they are trying to hide a downgrade in an upgrade. Some clever PR before the world catches on?

e.g If the clock was still 800Mhz and it magically became bi-directional wouldn't the the theorical max bandwidth be 204 GB/s?

They claim 192GB/s which split between reading and writing gives us 96 GB/s each way. To make that work the clock would have to be 750Mhz which is a 50Mhz down clock!?

You forget to add...

Up to 29% performance improvement measured using 3DMark Vantage Performance scores for the AMD Radeon™ HD 6490M. AMD Radeon™ HD 6490M 3DMark Vantage Performance...

The power measurement is stressing both GPUs... the GDDR5 permit that the GPU in HD 6490M was more used than GPU in 6470M... that's because the card uses more watts than another.

DDR3 runs at 1.25-1.65V while GDDR5 ~1V... the GDDR5 uses less power than DDR3.

Wrong link.

Can be but the official specs shows that GDDR5 uses less vontage than DDR3.

I know that less voltage is not always equal less power use but for computer components in most cases that's works like that.

I think the AMD results are just because the GPU is being more used... so the performance grow and the power consume too.

A question....

The eSRAM clock runs at the GPU clock or it can run async?

A question....

The eSRAM clock runs at the GPU clock or it can run async?

WTF???? Power is used to switch transistors and load/unload capacitors. All the power is transferred to heat in the end. This is really a no brainer: The more powr a circuit requires, the more heat it generates. Basic electronics.