AMD "Steamroller/Excavator" -info, speculations and experience

[justapost]

Thank you for the preview djohny. Indeed ocl results are great. But these require Windows 8 atleast for full HSA support? Also thank you flank3r for your comments at overclock.

[Lightman]

It works! Thanks!

P.D is a heavy compute performance than trinity. Double in luxmark, tripple in sph fluid simulatiom and raytrace.

Thank you for that test!
I can't wait to upgrade my A10-5800K to Kaveri! At least now I can see what a massive jump it will be, especially in compute and gaming on discrete graphics card

[haylui]

It works! Thanks!

P.D is a heavy compute performance than trinity. Double in luxmark, tripple in sph fluid simulatiom and raytrace.

you mean Kaveri?

[Khenglish]

The 28nm process looks just as fast as the 32nm SOI looking at anandtech's numbers. It's only 1 sample, but it looks like the clock speed drop due to increased power draw due to now having transistor body leakage since the SOI layer is gone. Too bad SOI got dropped for 28nm. If it was still there I'd expect the CPU clocks to be the same as richland, if not slightly higher.

Overall I'm disappointed with kaveri. The place where the APU makes the most sense is to save costs and board space on laptops while exceeding the GPU performance that intel can offer without a dGPU. While the CPU performance on desktops is OK for games, on laptops it will be lacking. Kaveri is going to run 3ghz at best in a laptop, which is going to have issues maintaining vysnc in games (my 4600m does when tweaked so it performs better than a 5750m). Yeah you can max out the resolution and run at 30fps instead, but to be forced to do that is ridiculous. GPU performance does look good though when it isn't being crippled by the CPU.

Also the gains in 512 shaders in the 7850k over the 384 in the 7600 are often less than 10% despite a 50% stronger core. When not CPU limited kaveri is badly memory starved.

http://www.anandtech.com/show/7677/a...0-a10-7850k/12

[donitsi]

It's a bit offtopic and all, but there is a petition now by Simeon Toshev:

To:
Advanced Micro Devices (AMD), One AMD Place P.O. Box 3453 Sunnyvale, CA 94088-3453
Please release high end FX processor with steamroller microarchitecture. Steamroller is already in the new APUs called "Kaveri" so it's a big shame not having it in a high end FX CPU because a lot of people are waiting for Steamroller FX high end CPU.

I hope you consider the release of high end Steamroller FX CPU as it'll make many people very happy!

Sincerely,
[Your name]

https://www.change.org/petitions/adv...itecture#share

I thought you people might like it

[demonkevy666]

It's a bit offtopic and all, but there is a petition now by Simeon Toshev:

https://www.change.org/petitions/adv...itecture#share

I thought you people might like it

if people are disappointed with kaveri They'd be even more disappoint with steamroller FX (see below)

The 28nm process looks just as fast as the 32nm SOI looking at anandtech's numbers. It's only 1 sample, but it looks like the clock speed drop due to increased power draw due to now having transistor body leakage since the SOI layer is gone. Too bad SOI got dropped for 28nm. If it was still there I'd expect the CPU clocks to be the same as richland, if not slightly higher.

Overall I'm disappointed with kaveri. The place where the APU makes the most sense is to save costs and board space on laptops while exceeding the GPU performance that intel can offer without a dGPU. While the CPU performance on desktops is OK for games, on laptops it will be lacking. Kaveri is going to run 3ghz at best in a laptop, which is going to have issues maintaining vysnc in games (my 4600m does when tweaked so it performs better than a 5750m). Yeah you can max out the resolution and run at 30fps instead, but to be forced to do that is ridiculous. GPU performance does look good though when it isn't being crippled by the CPU.

Also the gains in 512 shaders in the 7850k over the 384 in the 7600 are often less than 10% despite a 50% stronger core. When not CPU limited kaveri is badly memory starved.

http://www.anandtech.com/show/7677/a...0-a10-7850k/12

increase in power is coming from going from two (4 way) decoders in richland to four (4 way) decoders in kaveri/Steamroller.

so increasing to eight (4way) decoder is not a good idea.

what we need is rework of how the module uses single thread

[i found nemo]

https://www.change.org/petitions/adv...itecture#share

I thought you people might like it

signed, though i'm doubting it'll do well. just hope i'm wrong

[tbone8ty]

Say Amd starting tomorrow decided to do a limited run. Wouldn't it take like at least 6 months to a year to get it going?

Id rather have them make a 6-8 core apu with a smaller igpu