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Search: Posts Made By: gruffi
Forum: CPUs Today, 12:01 PM
Replies: 1,022
Views: 129,288
Posted By gruffi
Yes. FMA is part of the AVX...

Yes.


FMA is part of the AVX specification. C-Ray benefits from both.


You are right. I forgot that. Actually all Pentiums don't support AVX (including FMA). So, we don't even need to argue...
Forum: CPUs Yesterday, 09:59 AM
Replies: 1,022
Views: 129,288
Posted By gruffi
Only in very rare cases and with heavy use of AVX...

Only in very rare cases and with heavy use of AVX due to the 256-bit FPU of Haswell. Which is still quite irrelevant for your daily life. Even with AVX the Pentium mostly cannot compensate half the...
Forum: CPUs 12-20-2014, 07:15 PM
Replies: 1,022
Views: 129,288
Posted By gruffi
Oh c'mon, that's nonsense and you know it. The...

Oh c'mon, that's nonsense and you know it. The Pentium is slower than a 2-module Bulldozer if using all available CPU resources. We don't even need to debate about a 4-module Bulldozer. By the way,...
Forum: CPUs 12-20-2014, 09:48 AM
Replies: 1,022
Views: 129,288
Posted By gruffi
That applies to K12. Actually AMD didn't say much...

That applies to K12. Actually AMD didn't say much about Zen yet. They only said both cores will be performance-oriented.
Forum: Article discussion 12-19-2014, 10:12 AM
Replies: 13
Views: 1,530
Posted By gruffi
I would be surprised if AMD is interested in cell...

I would be surprised if AMD is interested in cell phones. And for process tech, it depends on Glofo. But they seem to be on schedule this time. Thanks to the collaboration with Samsung. I'd rather...
Forum: CPUs 12-15-2014, 09:06 AM
Replies: 16
Views: 1,510
Posted By gruffi
You mean 3 threads vs 4 threads. Look at the...

You mean 3 threads vs 4 threads. Look at the singlethreaded results. They are still quite impressive for Cyclone. Btw, I'd rather take 3 cores than two cores + HTT. ;)
Forum: Process technology 12-04-2014, 05:04 PM
Replies: 110
Views: 14,156
Posted By gruffi
Can you give us some numbers? I doubt that.

Can you give us some numbers? I doubt that.
Forum: GPUs 11-26-2014, 03:24 PM
Replies: 95
Views: 18,984
Posted By gruffi
I don't know if that's really true. But only AMD...

I don't know if that's really true. But only AMD can confirm it, not Linux or S/A. And AMD's CodeXL listed Tonga under Volcanic Islands before the whole naming scheme was changed to "Graphics IP...
Forum: GPUs 11-26-2014, 02:31 PM
Replies: 95
Views: 18,984
Posted By gruffi
According to the power consumption it should be...

According to the power consumption it should be rather the performance chip, not the mainstream chip



Only ~20W? You think memory + memory interface only needs ~30W in total? I don't think so....
Forum: CPUs 11-25-2014, 10:29 AM
Replies: 175
Views: 25,916
Posted By gruffi
First, we didn't talk about GPUs. Second, we...

First, we didn't talk about GPUs. Second, we didn't talk about consumers only. Third, I don't care about quarter to quarter. Such a period is too short make any conclusions. And fourth, you are still...
Forum: CPUs 11-24-2014, 08:34 PM
Replies: 175
Views: 25,916
Posted By gruffi
You just wish. The only shrinking business for...

You just wish. The only shrinking business for AMD in the last years are servers. Which isn't a surprise because the tech is outdated. K12 will target this business again. Every other business is...
Forum: CPUs 11-24-2014, 12:42 PM
Replies: 175
Views: 25,916
Posted By gruffi
Even big ARM players have to prove first they can...

Even big ARM players have to prove first they can develop server ecosystems. It's a completely different story than smartphones or tablets. AMD has a lot of expertise in the server world. That will...
Forum: CPUs 11-24-2014, 09:40 AM
Replies: 175
Views: 25,916
Posted By gruffi
Wow, what a failure. A whole 37 GFLOPS. Good we...

Wow, what a failure. A whole 37 GFLOPS. Good we have you to point this out. :rolleyes:


The original Steamroller design was on 22nm which had been canceled. That's why it was late and had less...
Forum: CPUs 11-24-2014, 05:58 AM
Replies: 175
Views: 25,916
Posted By gruffi
Don't be disappointed if Excavator is a...

Don't be disappointed if Excavator is a significant improvement anyway.
Forum: CPUs 11-23-2014, 11:07 AM
Replies: 175
Views: 25,916
Posted By gruffi
I wouldn't bet on that. They really seem to be...

I wouldn't bet on that. They really seem to be enthusiastic about the GPU improvements. I guess that's not possible if it's just Tonga like. Even if delta color compression can improve bandwidth...
Forum: CPUs 11-21-2014, 04:01 PM
Replies: 175
Views: 25,916
Posted By gruffi
Could be. Interesting, John Byrne...

Could be. Interesting, John Byrne (https://www.youtube.com/watch?v=I6zX2IqBI7A) says Carrizo will have a "brand new graphics architecture" (01:22). I guess he wouldn't have said that if it's the same...
Forum: CPUs 11-21-2014, 09:37 AM
Replies: 175
Views: 25,916
Posted By gruffi
I guess it will have a maximum of 4 CUs. So you...

I guess it will have a maximum of 4 CUs. So you won't need much bandwidth. And because it's the same package as Carrizo it will be dual channel. That's still a significant improvement over single...
Forum: CPUs 11-17-2014, 03:20 PM
Replies: 1,022
Views: 129,288
Posted By gruffi
Btw, AMD's packing density is amazing. Intel...

Btw, AMD's packing density is amazing.

Intel 22nm: 5.56 billion transistors on 663.5 mm˛ = ~8.38 million transistors per mm˛
AMD 28nm: 3.1 billion transistors on 244.62 mm˛ = ~12.67 million...
Forum: CPUs 11-17-2014, 02:43 PM
Replies: 1,022
Views: 129,288
Posted By gruffi
28nm should be cheap enough. Don't forget, <=22nm...

28nm should be cheap enough. Don't forget, <=22nm and FinFET is a lot more expensive per mm˛.
Forum: CPUs 11-13-2014, 11:11 AM
Replies: 32
Views: 4,052
Posted By gruffi
"Intel's pace of innovation" Best joke of...

"Intel's pace of innovation"

Best joke of the day. Thanks for the laugh.
Forum: CPUs 11-04-2014, 03:39 PM
Replies: 81
Views: 12,670
Posted By gruffi
Not really. That was just a demonstration of the...

Not really. That was just a demonstration of the technology on 32nm.
Forum: CPUs 11-04-2014, 09:59 AM
Replies: 50
Views: 8,840
Posted By gruffi
On AT forum they say Nexus 9 gets quite hot....

On AT forum they say Nexus 9 gets quite hot. Maybe throttling is the reason for stutters and slowdowns?
Forum: CPUs 11-04-2014, 09:57 AM
Replies: 81
Views: 12,670
Posted By gruffi
HDL was said to be used after Steamroller. So,...

HDL was said to be used after Steamroller. So, Excavator is the first core that might be designed with it.
Forum: CPUs 11-04-2014, 09:09 AM
Replies: 81
Views: 12,670
Posted By gruffi
If Carrizo's clocks are lower than Kaveri's...

If Carrizo's clocks are lower than Kaveri's clocks the IPC has to be improved by 50% or so to get 30% better power efficiency. Very unlikely. It has to be a mix of more clock and more IPC at the same...
Forum: CPUs 11-03-2014, 09:02 AM
Replies: 81
Views: 12,670
Posted By gruffi
Please stop quoting this site. It's getting...

Please stop quoting this site. It's getting ridiculous. They are using a lot of games and memory bound apps like 7-Zip or WinRAR. As I said before that's an inappropriate way to measure CPU...
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