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Forums - Gaming Discussion - Wii U vs PS4 vs Xbox One FULL SPECS (January 24, 2014)

ethomaz on 18 November 2012

Anand correted the text... now it's right.

"There are four 4Gb (512MB) Hynix DDR3-1600 devices surrounding the Wii U's MCM (Multi Chip Module). Memory is shared between the CPU and GPU, and if I'm decoding the DRAM part numbers correctly it looks like these are 16-bit devices giving the Wii U a total of 12.8GB/s of peak memory bandwidth. (Corrected from earlier, I decoded the Hynix part numbers incorrectly)."

http://www.anandtech.com/show/6465/nintendo-wii-u-teardown

I think about memory it's now right and definitive.



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ethomaz on 18 November 2012

That's pretty bad...

360: 22.4 GB/s + eDRAM for framebuffer
PS3: 25.6 GB/s main memory BW + 22.4 GB/s graphics memory
Wii U: 12.8GB/s

Now we have to believe in the power of the eDRAM.



drkohler on 18 November 2012
ethomaz said:

I can read the model number from this picture: http://images.anandtech.com/reviews/video/nintendo/WiiU/DSC_9008.jpg

H5TQ4G63MFR

https://www.skhynix.com/products/computing/view.jsp?info.ramKind=19&info.serialNo=H5TQ4G63MFR

Is that the same model you talking about??? With a 16bits bus interface (64bits for 4 modules) you have 12.8GB/s and not 17.

The picture from the PCP guys says Samsung K4W4G16446B-HC12. I haven't seen Hynix parts before. Apparently Nintendo bought dram from at least two sources. However, since all WiiUs have to perform identically, the Hynix chips will obviously be programmed to perform identical to the Samsung gDDR3 parts. Note that the Samsung chips perform at 17GBytes/s, this does not necessarily mean the WiiU does it at that speed, they could be clocked at 12.8G/s (but then why buy expensive Samsung chips when cheaper, slower ones do the job?). Until someone actually measures the clocks, we don't know.



ethomaz on 18 November 2012

drkohler said:

The picture from the PCP guys says Samsung K4W4G16446B-HC12. I haven't seen Hynix parts before. Apparently Nintendo bought dram from at least two sources. However, since all WiiUs have to perform identically, the Hynix chips will obviously be programmed to perform identical to the Samsung gDDR3 parts. Note that the Samsung chips perform at 17GBytes/s, this does not necessarily mean the WiiU does it at that speed, they could be clocked at 12.8G/s (but then why buy expensive Samsung chips when cheaper, slower ones do the job?). Until someone actually measures the locks, we don't know.

I get it now... it's common to use two memory manufacturer in consoles (for drive and HDD too)... I agree with you the two have to perform the same so the real bandwith lies in 12.8GB/s to 17GB/s... not good.

The eDRAM have to do miracles now.



HoloDust on 18 November 2012
ethomaz said:

drkohler said:

We are not discussing JEDEC modules, we are talking gDDR3 single chips. Samsung's own data sheets for the very chips win, not some module standard.

I can read the model number from this picture: http://images.anandtech.com/reviews/video/nintendo/WiiU/DSC_9008.jpg

H5TQ4G63MFR

https://www.skhynix.com/products/computing/view.jsp?info.ramKind=19&info.serialNo=H5TQ4G63MFR

Is that the same model you talking about??? With a 16bits bus interface (64bits for 4 modules) you have 12.8GB/s and not 17.

I lost my eyes trying to figure out the part, and come up with H5TQ4G63MFR-12C. This is Hynix 2012 Databook:

https://docs.google.com/viewer?a=v&q=cache:we2mzzg50B0J:www.hynix.com/inc/pdfDownload.jsp%3Fpath%3D/datasheet/Databook/Databook_2Q%272012_GraphicsMemory.pdf+&hl=en&pid=bl&srcid=ADGEESg4j98y1GfhF0wGRAQWW5gvWNDkZzPLCIIavXg9PNF-VTlophs7t_EijBL8oT1uoj4YzMt-pZywVyzBtmw4GzpYpm1zTRTHMu_o3yoENtoPcK9vbSaUCJWRwYc53EKmGZow8gir&sig=AHIEtbStAQ2sYjaboTkMcsdY3hDqxNnBVg

800MHz (1.2ns), and yeah, I completely forgot to multiply by 2 (silly me), so DDR3-1600 for 12.8GB/s.



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ethomaz on 18 November 2012

HoloDust said:

I lost my eyes trying to figure out the part, and come up with H5TQ4G63MFR-12C. This is Hynix 2012 Databook:

https://docs.google.com/viewer?a=v&q=cache:we2mzzg50B0J:www.hynix.com/inc/pdfDownload.jsp%3Fpath%3D/datasheet/Databook/Databook_2Q%272012_GraphicsMemory.pdf+&hl=en&pid=bl&srcid=ADGEESg4j98y1GfhF0wGRAQWW5gvWNDkZzPLCIIavXg9PNF-VTlophs7t_EijBL8oT1uoj4YzMt-pZywVyzBtmw4GzpYpm1zTRTHMu_o3yoENtoPcK9vbSaUCJWRwYc53EKmGZow8gir&sig=AHIEtbStAQ2sYjaboTkMcsdY3hDqxNnBVg

800MHz (1.2ns), and yeah, I completely forgot to multiply by 2 (silly me), so DDR3-1600 for 12.8GB/s.

He puts a better picture now... I had to guess some letters from the first picture lol



HoloDust on 18 November 2012
ethomaz said:

HoloDust said:

I lost my eyes trying to figure out the part, and come up with H5TQ4G63MFR-12C. This is Hynix 2012 Databook:

https://docs.google.com/viewer?a=v&q=cache:we2mzzg50B0J:www.hynix.com/inc/pdfDownload.jsp%3Fpath%3D/datasheet/Databook/Databook_2Q%272012_GraphicsMemory.pdf+&hl=en&pid=bl&srcid=ADGEESg4j98y1GfhF0wGRAQWW5gvWNDkZzPLCIIavXg9PNF-VTlophs7t_EijBL8oT1uoj4YzMt-pZywVyzBtmw4GzpYpm1zTRTHMu_o3yoENtoPcK9vbSaUCJWRwYc53EKmGZow8gir&sig=AHIEtbStAQ2sYjaboTkMcsdY3hDqxNnBVg

800MHz (1.2ns), and yeah, I completely forgot to multiply by 2 (silly me), so DDR3-1600 for 12.8GB/s.

He puts a better picture now... I have to guess some letters from the first picture lol

Oh man, I was rotating original picture around to figure out the part, my bad right eye wasn't helping at all. Should've wated for this one LOL



ethomaz on 18 November 2012

Sometimes the GAF makes me laugh a lot lol lol lol.

"i heard nintendo paid anandtech to mistakenly say it was 800 so 1600 would look loads better"

http://www.neogaf.com/forum/showpost.php?p=44501794&postcount=113



drkohler on 18 November 2012
ethomaz said:

drkohler said:

The picture from the PCP guys says Samsung K4W4G16446B-HC12. I haven't seen Hynix parts before. Apparently Nintendo bought dram from at least two sources. However, since all WiiUs have to perform identically, the Hynix chips will obviously be programmed to perform identical to the Samsung gDDR3 parts. Note that the Samsung chips perform at 17GBytes/s, this does not necessarily mean the WiiU does it at that speed, they could be clocked at 12.8G/s (but then why buy expensive Samsung chips when cheaper, slower ones do the job?). Until someone actually measures the locks, we don't know.

I get it now... it's common to use two memory manufacturer in consoles (for drive and HDD too)... I agree with you the two have to perform the same so the real bandwith lies in 12.8GB/s to 17GB/s... not good.

The eDRAM have to do miracles now.

Yep, finally found a Hynix doc that says 800MHz for the chips, and the slower chips usually win, so 12.8GB/s max seems to be the number for today...



ethomaz on 18 November 2012

I loved the low power consumption (33w playing a game) but that's makes me wonder if the GPU/CPU is not too strong so the power consumption is low.