New info about trident XP4 chip

[jpeter]

New info about trident XP4 chip:
0.13 micro
completely supports DirectX8.1 and the DirectX9.0
Band width (GB/s) 11.2 GByte
30 millions transistors
4w power consumption


http://www.hardsalon.com/opennews.asp?page=1&zhuti=5559&kid=1

You will need url=http://world.altavista.com

 

[PC-Engine]

I guess we can expect a new chip from Cirrus Logic too

 

[Geeforcer]

New info about trident XP4 chip:
completely supports DirectX8.1 and the DirectX9.0
30 millions transistors

This just doesn't seem to add up.

 

[Dave B(TotalVR)]

Could be relying on software for vertex processing, it will still work in software, just slower. Mind you displacement maps would be unusable then.

Also, a very large amount of die space on things like the GF4 are taken up by the memory controller and the multisampling AA'ing, they may have kept it simple in these areas - and others.

Bearing that in mind it probably wont be a great performaer, but its blatently for laptops if it only consumes 4w. Makes you wonder what clock it runs at though.

Dave

 

[Ailuros]

Makes you wonder what clock it runs at though.

I assume:

XP4 T3=11.2GB/s bandwidth = 350mhz DDR (128bit bus)

The XP4 is just one member of a family that includes the discrete 250 MHz XP4 with a 128-bit memory interface of up to 666 MHz DDR clock. There are also the XP4m16 and XP4m32, both of which are multi-chip-modules (MCM) containing XP4 silicon die with 16/32 Mbytes of FBGA frame buffer memory in a similar 31x31mm package for thin/light notebooks where the smallest footprint is required.

666mhz changed apparently to 700mhz. Maybe they´ve pushed the core clock one notch higher than 250mhz too.

http://www.tridentmicro.com/press/2002/pr020415.html

 

[Gunhead]

30 million transistors. Hey, it has a pixel pipeline, maybe even two.

Excuse me while I fall asleep.

 

[PC-Engine]

30 million transistors. Hey, it has a pixel pipeline, maybe even two.

Excuse me while I fall asleep.

For a mobile graphics solution, it's better than anything Nvidia or ATI can muster

1 Gigapixel/8 Gigatexel performance and under 3 watts 8)

 

[Althornin]

30 million transistors. Hey, it has a pixel pipeline, maybe even two.

Excuse me while I fall asleep.

For a mobile graphics solution, it's better than anything Nvidia or ATI can muster

1 Gigapixel/8 Gigatexel performance and under 3 watts 8)

Honestly, what percentage of battery life is eaten by graphics cards anyways?
I mena, what percentage battery life gain are we talking ab out over a gfaphics card that uses 10 watts?

 

[Gunhead]

Althornin, good point. Some have said that Crusoe failed (partly) because even CPU power consumption is insignificant compared to what the LCD eats up...

PC-Engine, are those 8 gigs 3dfx bilinear texels or Matrox half-trilinear texels?

 

[Geeforcer]

The low number of transistors in addition to 1GPs/8GTs claims seems to suggest a deferred TBR.

 

[PC-Engine]

The Crusoe analogy doesn't really apply here because the Crusoe sacrificed performance to get low power consumption. The XP4 is getting more performance while consuming less power

 

[Ailuros]

30 million transistors. Hey, it has a pixel pipeline, maybe even two.

Excuse me while I fall asleep.

Considering 1GPs and 250mhz are claimed I can imagine 4 pipelines. I've no idea where the 8GTs comes from, if it's a Tiler as it seems to be, then it's rather strange; I always thought more than one TMU per pipe doesn't make much sense on tilers...

I have no idea how Trident's drivers have evolved lately and apart from what the competition has to present (which is practically irrelevant to me), considering it a Notebook TBR chip, dx8.1 compliant, 250mhz, up to 11,2GB/s bandwidth, with an iDCT unit and it's final price I'd rather say it's interesting at least.

 

[mboeller]

How about

1GPixel / 8 GTexel meaning 1GPixel and 8 "real" GTexel

this would "translate" into 1GPixel and 2GTexel according to the old 3Dfx definition. So the XP4 would be (on paper) as fast as an GF4 Ti4200@250MHz.

 

[Ailuros]

I have the feeling that they simply multiply Texel fillrate times the numbers of textures per pass.

4 x 250 = 1GTs x 8 = 8GTs.

Under that sense a KYRO II would have 2.8GTs.