Parhelia core clock speed, performance expectations ?

[CHHAS]

If this is correct, what kind of performance can we expect ?
http://gamespot.com/gamespot/stories/news/0,10870,2868166,00.html

 

[ben6]

bah I already reported the projected clockspeed. Matrox says review units will be out first part of June...

 

[Doomtrooper]

Actually Ben your post was typical for you, 1st you say 220 mhz then repost saying thats not written in stone, then repost saying that 220 mhz is what Matrox PR knows, so in other words....We still don't know for SURE

Post 1 :

220Mhz Gclock. With .15um and 80 million transistors, it was doubtful that they'd hit a high clockspeed, but they've confirmed it today.

Post 2:

To clarify a little, this is a ballpark figure, and may change slightly....

Post 3

It's confirmed as far as Matrox PR knows right now. But of course, the product hasn't hit shelves yet (at least 1-2 months away) and right now is what they're guesstimating . They're saying 220Mhz range, but of course historically

 

[ben6]

Doomtrooper, in this case , the corrections were made by Matrox PR, not me. As you know Matrox has NEVER disclosed clockspeeds in the past...

 

[Stormlord]

I found some parhelia videos

Found some parhelia videos in a 3-TFT panoramic setup, looks fast enough to me..

 

[Gunhead]

I know it's 80 million transistors on a .15 process (as far as Matrox PR is accurate!), but nevertheless, isn't 220 MHz kinda slow, after all, relatively speaking?

Myself, I'm worried -- for the simple reason that I *want* this card to drive my aging 21" tube!

FWIW, I remember that clockspeeds as high as 375 MHz were aired, so I'm getting disappointed... Martox prove me worng and be teh win!

 

[muted]

you should understand that it is high for the transistor count and 0.15um

how the perfomance will work is

there will be a maximum fps of 100 fps ( speculation )
and when you enable everything , the it should never go down below 90
fps

 

[Ailuros]

That would be a good hypothetical scenario when enabling FAA. A rather bad one when forced to enable OGSS though.

 

[sir doris]

Well i guess it will never be fill-rate limited. And even at 220MHz it's still got twice the piplines of the GF4? So it should be fast enough?

 

[Zeross]

Parhelia will be clocked at two speeds :
-250Mhz core and 270MHz memory for standard version
-somewhere near 300MHz for clock and memory for "pro version"

 

[Geeforcer]

Parhelia will be clocked at two speeds :
-250Mhz core and 270MHz memory for standard version
-somewhere near 300MHz for clock and memory for "pro version"

When did they announce that?

 

[Pete]

Well i guess it will never be fill-rate limited. And even at 220MHz it's still got twice the piplines of the GF4? So it should be fast enough?

Memory-bandwidth-limited, you mean (20GB/s vs. 11GB/s). And it has twice the texturing units, but the same number of pixel pipes (4x4 vs. 4x2).

It all boils down to the drivers. Sure, they'll get better six months down the road, but I'm interested in how the perform at launch.

 

[sir doris]

yup got myself confused - fill rate limited.

When are review samples going out?

 

[muted]

http://www.athlonxp.com/modules.php?op=modload&name=News&file=index&catid=&topic=49

well that's a small heatsink .. compared to the one on the alpha board ;p

 

[Dave Baumann]

Thats still a fairly alpha board by the look of things - theres some reworks going on there.

 

[Nappe1]

it could be Alpha / Beta board, but based on this Haig's comment:

I don't know what our PR/Marketing team will be sending them but I guess it will be the shipping hardware.

http://forum.matrox.com/mgaforum/Forum8/HTML/001219.html

...it could also be shipping or almost finalised card...

well, time shows that. There is pictures from other sites too, with little bit different card, but to me, it looks like much more like Alpha card.

 

[Teasy]

I know it's 80 million transistors on a .15 process (as far as Matrox PR is accurate!), but nevertheless, isn't 220 MHz kinda slow, after all, relatively speaking?

Myself, I'm worried -- for the simple reason that I *want* this card to drive my aging 21" tube!

Having a 1200mpixel/s fillrate like say a Geforce 4 isn't so important if you only have the bandwidth to achieve about 700mpixels/s or less? Core speed and theoretical fillrate is not everything, infact its nothing without the bandwidth to allow it to acheive its fillrate. High theoritcal fillrate can help sometimes but 880mpixels/s (220mhz x 4 pipes) is high enough, especially with 20gb/s bandwidth behind it. Also because of the 4 TU's per pipe the Parhelia will keep that full fillrate even with 4 texture layers while cards like the Geforce 4 will drop down to 600mpixels/s. So in conclusion, 880mpixel/s is fine, its no big deal that it doesn't have a huge theoretical fillrate, its the memory bandwidth that's important here IMO and it does certainly have a huge memory bandwidth.

 

[Joe DeFuria]

I'll say one thing...that Matrox board looks surprisingly "clean" and compact for such a monster. Compare that card landscape to the GeForce4 Ti 44/4600 boards. Of course, it's apparently not clocked nearly as high, but that is a 256 bit bus going on there...

 

[Dave Baumann]

I'll say one thing...that Matrox board looks surprisingly "clean" and compact for such a monster. Compare that card landscape to the GeForce4 Ti 44/4600 boards. Of course, it's apparently not clocked nearly as high, but that is a 256 bit bus going on there...

You ain't seen nuthin' yet...!

 

[ushac]

You ain't seen nuthin' yet...!

Hmm. Is that supposed to be a hint of some 3DLabs thing? And how do you mean.. I ain't seen nuthin' yet of how clean and compact such a monster can get, or is the GF4Ti's nuthin' in complexity compared to what you've seen?

Regards / ushac