AMD HT Upgrade?

[GhandiInstinct]

Any idea when they're going to increase their hyper transport bus speed rate?

 

[imported_Kensai]

Why the hell would you need more speed than that?

 

[monster64]

1000 is already way too much; bottlenecks only start to appear at 500 mhz. NO point at all in more than 1000mhz.

 

[wanderer27]

Higher OC 😉

 

[imported_Kensai]

2000MB/s is enough for most people. Only when you've got major power then you'll need more. Think Dual, dual core Opteron.

 

[imported_Kensai]

Originally posted by: monster64
1000 is already way too much; bottlenecks only start to appear at 500 mhz. NO point at all in more than 1000mhz.

You forgot that HyperTransport is a quad pumped 200MHz giving 1000MHz which is then double pumped to 2000MHz.
At 1600MHz, you'll start to notice FPS drops in games.
You will need the full 2000MHz (or more) for professional applications.

 

[Hard Ball]

I heard a while ago that HTT 1.2 will be out sometime later this year with 1400/2800MHz signal rate, but since the Windsor/Orlean is pushed back to Q106, I would think that it would arrive at about the same time.

Also HTT 2.0 should be out with K10 (what used to be called K9), and it's anyone's guess when that's coming; it's rumoured to be 25.6 GHz in frequency on a French site a while ago; I'll try to find it again.

 

[CheesePoofs]

Originally posted by: Hard Ball
I heard a while ago that HTT 1.2 will be out sometime later this year with 1400/2800MHz signal rate, but since the Windsor/Orlean is pushed back to Q106, I would think that it would arrive at about the same time.

Also HTT 2.0 should be out with K10 (what used to be called K9), and it's anyone's guess when that's coming; it's rumoured to be 25.6 GHz in frequency on a French site a while ago; I'll try to find it again.

25.6ghz??? Keep dreaming. That'd need like a 100 stage pipeline with phase change cooling minimum.

 

[Hard Ball]

Originally posted by: CheesePoofs

Originally posted by: Hard Ball
I heard a while ago that HTT 1.2 will be out sometime later this year with 1400/2800MHz signal rate, but since the Windsor/Orlean is pushed back to Q106, I would think that it would arrive at about the same time.

Also HTT 2.0 should be out with K10 (what used to be called K9), and it's anyone's guess when that's coming; it's rumoured to be 25.6 GHz in frequency on a French site a while ago; I'll try to find it again.

25.6ghz??? Keep dreaming. That'd need like a 100 stage pipeline with phase change cooling minimum.

Maybe "frequency" is not be best description, it actually should be GB/s, not "GHz":

considering today's HTT delivers 6.4GB/s I/O bandwidth with an 800MHz HTT, it would not be too much of a stretch to quadruple it a couple of years down the road, with a 32 bit link width.
http://www.short-media.com/review.php?r=206&p=8

 

[BitByBit]

I think many of you are under the misconception that Hypertransport has anything to do with the memory bus.
Hypertransport connects the processor to system devices, not main memory.
If you consider that the greatest bandwidth requirements come from the GPU, which usually requires around 1GB/s of bandwidth, you can see why HTT bandwidth of 6.4GB/s is totally superfluous.
The following article shows the impact of changing HTT speeds:
http://www.neoseeker.com/Articles/Hardware/Guides/athlon64oc/2.html

 

[Bona Fide]

Originally posted by: BitByBit
I think many of you are under the misconception that Hypertransport has anything to do with the memory bus.
Hypertransport connects the processor to system devices, not main memory.
If you consider that the greatest bandwidth requirements come from the GPU, which usually requires around 1GB/s of bandwidth, you can see why HTT bandwidth of 6.4GB/s is totally superfluous.
The following article shows the impact of changing HTT speeds:
http://www.neoseeker.com/Articles/Hardware/Guides/athlon64oc/2.html

I think most people understand that a HTT bus of 1000MHz is quite sufficient for most of us. But, an increased bus speed will allow for more OC headroom without having to drop the multiplier down. 🙂

 

[Acanthus]

Originally posted by: Bona Fide

Originally posted by: BitByBit
I think many of you are under the misconception that Hypertransport has anything to do with the memory bus.
Hypertransport connects the processor to system devices, not main memory.
If you consider that the greatest bandwidth requirements come from the GPU, which usually requires around 1GB/s of bandwidth, you can see why HTT bandwidth of 6.4GB/s is totally superfluous.
The following article shows the impact of changing HTT speeds:
http://www.neoseeker.com/Articles/Hardware/Guides/athlon64oc/2.html

I think most people understand that a HTT bus of 1000MHz is quite sufficient for most of us. But, an increased bus speed will allow for more OC headroom without having to drop the multiplier down. 🙂

but dropping the multiplier down doesnt do anything to impact performance is what we are telling you...

 

[Furen]

Also, dont forget that the hypertransport bandwidth is not comparable to intel's FSB bandwidth 'cause memory traffic (which consumes most of intel's FSB) does not leave the chip except in multiprocessor systems.

 

[Viditor]

AMD will require the increased HT bandwidth by about 2007 for the quad core/multi cpu systems. In that scenario, a 4P system will have 16 cores...each of which will need interaction with the others. IIRC, the HT bandwidth is supposed to be 24GB+/sec by then...