WTH IGN?! They posted the spec analysis from Major Nelson!!

[nAo]

whereas the RSX probably will be stuck around half that unless it can render separately to XDR and GDDR (e.g. Z-buffer in GDDR, FB in XDR)

Probably this was fixed on RSX but NVIDIA tell developers to use a couple of 32bit buffers (via MRT) when rendering to a 64 buffer on NV40.
Well maybe on RSX one can render RG channels into XDR and BA channels into GDDR3.
And what about rendering into SPE sram? or CPU L2?

 

[aaaaa00]

Overall tho, he's still selling bullshit. It would be correct to say that the XBGPU's 48Gb/s bandwidth is enough to achieve its peak fillrate of 4Gpix/s, whereas the RSX probably will be stuck around half that unless it can render separately to XDR and GDDR (e.g. Z-buffer in GDDR, FB in XDR)

Actually to be clear, the combination of the EDRAM+daughter-die processors means the x360 has enough EDRAM bandwidth for it to almost never be a bottleneck period, no matter what rendering modes you turn on.

With EDRAM 4x MSAA, alpha blend, colour+Z/stencil will run at full speed almost all the time, no matter what the scene is.

That definitely removes a pretty big bottleneck from the system.

 

[nAo]

With EDRAM 4x MSAA, alpha blend, colour+Z/stencil will run at full speed almost all the time, no matter what the scene is.

64 bit or 32 bit color buffer?

 

[aaaaa00]

With EDRAM 4x MSAA, alpha blend, colour+Z/stencil will run at full speed almost all the time, no matter what the scene is.

64 bit or 32 bit color buffer?

Sorry, 32-bit is assumed.

 

[nAo]

64 bit or 32 bit color buffer?

Sorry, 32-bit is assumed.

So do we have to expect a 4 pixels per clock fillrate with HDR rendering?
I hope it can still fill at 8 pixels per clock when alpha blending is off..

 

[aaaaa00]

64 bit or 32 bit color buffer?

Sorry, 32-bit is assumed.

So do we have to expect a 4 pixels per clock fillrate with HDR rendering?
I hope it can still fill at 8 pixels per clock when alpha blending is off..

There's an FP10 mode which is a compromise of accuracy for speed that you can use I think. Depending on what you're doing it won't look that much worse than FP16.

 

[Acert93]

There's an FP10 mode which is a compromise of accuracy for speed that you can use I think. Depending on what you're doing it won't look that much worse than FP16.

So no FP16 or FP32 blending on the R500

 

[nAo]

There's an FP10 mode which is a compromise of accuracy for speed that you can use I think. Depending on what you're doing it won't look that much worse than FP16.

How many mantissa/exponent bits?

 

[Shifty Geezer]

This PR stunt has me laughing and crying. I mean really, it smacks of desperation. After MS's bad start, the show floor was apparently sounding enthusiam for XB360, and then they along and offer a 'technical performance analysis' of hardware they know nothing about, incorporating bald-faced lies.

Has anything like this ever happened before, when a company has officially compared side-by-side their unlaunched product with their competitor's unlaunched product?

Who's idea was this? Earlier Allard seemed to be okay saying 'we're playing our game, the competitors are playing theres' but now they seem to be reacting (overreacting) in a really inprofessional...it's just crazy! I can't believe they actually wrote all that.

I guess this is the era of Next-Gen HDFUD

 

[Titanio]

It's like their goading the technical sites to come in with their own analysis and rip X360 to pieces (well, you know, they're at least going to frown upon this kind of behaviour from MS). Of course, they won't do that till they actually have all the facts

 

[Danack]

This PR stunt has me laughing and crying. I mean really, it smacks of desperation.

Couple o'things:

Either IGN are rubbish journalists or they just got a load of cash to run with this FUD article. Or both.

Microsoft have suddenly realised how difficult it is launching your console first, and also realised that six months is not enough lead time to dominate the market.

Microsoft should release a tech demo that looks as good as the Getaway tech demo if they want to impress the gaming public, people are not impressed by talking or sportsman endorsments - it's all about the games stupid.

 

[Jawed]

Well if we're going to talk about a z/stencil only pass, XB360 can do this at 8Gz/s, but RSX can only do 5.6Gz/s.

RSX's 22.4GB/s is simply too slow.

Jawed

 

[fulcizombie]

This PR stunt has me laughing and crying. I mean really, it smacks of desperation. After MS's bad start, the show floor was apparently sounding enthusiam for XB360, and then they along and offer a 'technical performance analysis' of hardware they know nothing about, incorporating bald-faced lies.

Has anything like this ever happened before, when a company has officially compared side-by-side their unlaunched product with their competitor's unlaunched product?

Who's idea was this? Earlier Allard seemed to be okay saying 'we're playing our game, the competitors are playing theres' but now they seem to be reacting (overreacting) in a really inprofessional...it's just crazy! I can't believe they actually wrote all that.

I guess this is the era of Next-Gen HDFUD

Didn't sony made some direct comparisons in their PC???

 

[nAo]

Well if we're going to talk about a z/stencil only pass, XB360 can do this at 8Gz/s, but RSX can only do 5.6Gz/s.

RSX's 22.4GB/s is simply too slow.

Jawed

You forgot z-buffer compression

 

[Vaan]

This PR stunt has me laughing and crying. I mean really, it smacks of desperation. After MS's bad start, the show floor was apparently sounding enthusiam for XB360, and then they along and offer a 'technical performance analysis' of hardware they know nothing about, incorporating bald-faced lies.

Has anything like this ever happened before, when a company has officially compared side-by-side their unlaunched product with their competitor's unlaunched product?

Who's idea was this? Earlier Allard seemed to be okay saying 'we're playing our game, the competitors are playing theres' but now they seem to be reacting (overreacting) in a really inprofessional...it's just crazy! I can't believe they actually wrote all that.

I guess this is the era of Next-Gen HDFUD

Didn't sony made some direct comparisons in their PC???

Yes. Holy TFlops against Holy mighty TFlops.

But this article is stating real vs real things with a modified and biased point of view. Thus can't be posted on an online magazine omg...

 

[Mordecaii]

The major problem I have with this article is that it assumes a lot of things that aren't released about the PS3 specs. Also, as has been stated before, it compares quite a few specs which simply can't be compared. For example, the memory bandwidth. Either way, I only hope that this information is dissected and people can see what is true/false soon.

 

[Vaan]

The major problem I have with this article is that it assumes a lot of things that aren't released about the PS3 specs. Also, as has been stated before, it compares quite a few specs which simply can't be compared. For example, the memory bandwidth. Either way, I only hope that this information is dissected and people can see what is true/false soon.

The major problem is the major nelson himself...

 

[Mordecaii]

The major problem I have with this article is that it assumes a lot of things that aren't released about the PS3 specs. Also, as has been stated before, it compares quite a few specs which simply can't be compared. For example, the memory bandwidth. Either way, I only hope that this information is dissected and people can see what is true/false soon.

The major problem is the major nelson himself...

Agreed

 

[passby]

Either IGN are rubbish journalists or they just got a load of cash to run with this FUD article. Or both.

Both.

 

[Jawed]

Well if we're going to talk about a z/stencil only pass, XB360 can do this at 8Gz/s, but RSX can only do 5.6Gz/s.

RSX's 22.4GB/s is simply too slow.

Jawed

You forgot z-buffer compression

So what are the real-world data rates in the respective architectures? 4:1 compression on average?

Jawed