Overclock.net › Forums › AMD › AMD CPUs › Steamroller?
New Posts  All Forums:Forum Nav:

Steamroller? - Page 326

post #3251 of 3492
SeronX if you're right about Kaveri actually having much more grunt packed than we have seen it will be even better in mobile.

I thought the weak perf was caused by it not getting clocked so high but even that didn't really go but this could explain it all. thumb.gif
post #3252 of 3492
half the total chip being disable isn't exactly surprising, GPUs like 7950 and 290 are in the same boat, along with the old phenomII x3s, all kinds of manufacture problems can arise and the best solution in a lot of cases is to just work with it and adapt.

size of this is definitely reassuring though for the possibility of more higher-end units, guess I have a reason to wait a little longer before diving onto FM2+ just yet...
   
build server
(10 items)
 
CPUMotherboardGraphicsGraphics
R5-1600X ASUS Crosshair VI Hero XFX Vega64 AMD R9-290X 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance LPX 16GB 3200 C16 ADATA SX8000NF 2x Samsung 850 pro 256GB 2x WD Red 2TB RAID1 
Hard DriveHard DriveCoolingOS
OCZ Vertex 3 120GB Seagate Shingle 8TB EK Supremacy EVO + EK Vega + EK 290X R2 + backp... Windows 10 Pro 
MonitorMonitorKeyboardPower
4k 24" samung PLS freesync 1200p 24" samsung Corsair K70 Red Seasonic 1000W Platinum 
CaseMouseMouse PadAudio
Raven RV01 Corsair M60/M45 Corsair gigabyte dual-onboard audio 
Audio
HDMI 8ch LPCM 24@192k DAC 
CPUMotherboardGraphicsRAM
AMD AthlonII 640 x4 Gigabyte 880GM-USB3 nvidia GTX 460SE Corsair Dominator 2*2GB 
Hard DriveOptical DriveCoolingOS
Seagate 500GB some sony DVD burner stock, case has a nice side duct though Windows 7 home premium 64bit 
PowerCase
Arctic Cooling 550R Gigabyte mATX 
CPUMotherboardGraphicsRAM
Intel Atom 230 some all-in-one Mini-ITX board Intel GMA 950 some 1GB stick 
Hard DriveOptical DriveCoolingOS
Seagate 320GB LightScribe DVD burner? passive stock Oracle Linux 
PowerCase
integrated in the motherboard, 65W power brick compaque stock Mini-ITX case 
  hide details  
Reply
   
build server
(10 items)
 
CPUMotherboardGraphicsGraphics
R5-1600X ASUS Crosshair VI Hero XFX Vega64 AMD R9-290X 
RAMHard DriveHard DriveHard Drive
Corsair Vengeance LPX 16GB 3200 C16 ADATA SX8000NF 2x Samsung 850 pro 256GB 2x WD Red 2TB RAID1 
Hard DriveHard DriveCoolingOS
OCZ Vertex 3 120GB Seagate Shingle 8TB EK Supremacy EVO + EK Vega + EK 290X R2 + backp... Windows 10 Pro 
MonitorMonitorKeyboardPower
4k 24" samung PLS freesync 1200p 24" samsung Corsair K70 Red Seasonic 1000W Platinum 
CaseMouseMouse PadAudio
Raven RV01 Corsair M60/M45 Corsair gigabyte dual-onboard audio 
Audio
HDMI 8ch LPCM 24@192k DAC 
CPUMotherboardGraphicsRAM
AMD AthlonII 640 x4 Gigabyte 880GM-USB3 nvidia GTX 460SE Corsair Dominator 2*2GB 
Hard DriveOptical DriveCoolingOS
Seagate 500GB some sony DVD burner stock, case has a nice side duct though Windows 7 home premium 64bit 
PowerCase
Arctic Cooling 550R Gigabyte mATX 
CPUMotherboardGraphicsRAM
Intel Atom 230 some all-in-one Mini-ITX board Intel GMA 950 some 1GB stick 
Hard DriveOptical DriveCoolingOS
Seagate 320GB LightScribe DVD burner? passive stock Oracle Linux 
PowerCase
integrated in the motherboard, 65W power brick compaque stock Mini-ITX case 
  hide details  
Reply
post #3253 of 3492
So SeronX do I get it right, Kaveri has 2.41 billion transistors on die but only half of them are working?
Always thought they gave us the number of actually working transistors and I was wondering why Kaveri doesn't outperform Richland (that much) with nearly twice the transistor count.

IF that's the case could it explain the A8-7600 delay?
post #3254 of 3492
Seronx, that's some pretty damn good investigating. I'm really looking forward to Kaveri mobile now. thumb.gif

I thought the Kaveri launch was very strange, and this definitely helps to make more sense out of it.
Home Rig
(14 items)
 
Work Rig
(16 items)
 
 
CPUMotherboardGraphicsRAM
i5-2400 Dell Proprietary Sapphire Radeon 5750 16GB Corsair Vengence 
Hard DriveOptical DriveCoolingOS
320GB Seagate HDD DVD Writer Dell Proprietary HSF Windows 7 Professional x64 
MonitorMonitorMonitorKeyboard
Dell U2311H Dell U2311H Dell U2311H Corsair K70 Red 
PowerCaseMouseAudio
Dell Proprietary Vostro 460 Mini Tower Microsoft Sculpt Ergonomic Creative Sound Blaster X-Fi Titanium Fatal1ty 
  hide details  
Reply
Home Rig
(14 items)
 
Work Rig
(16 items)
 
 
CPUMotherboardGraphicsRAM
i5-2400 Dell Proprietary Sapphire Radeon 5750 16GB Corsair Vengence 
Hard DriveOptical DriveCoolingOS
320GB Seagate HDD DVD Writer Dell Proprietary HSF Windows 7 Professional x64 
MonitorMonitorMonitorKeyboard
Dell U2311H Dell U2311H Dell U2311H Corsair K70 Red 
PowerCaseMouseAudio
Dell Proprietary Vostro 460 Mini Tower Microsoft Sculpt Ergonomic Creative Sound Blaster X-Fi Titanium Fatal1ty 
  hide details  
Reply
post #3255 of 3492
Usually I'm hesitant with Seronx's predictions, but his mention of the fact that Kaveri has almost twice the transistor count of Richland and barely edges it out makes sense. I mean, look at the GPU area of a Kaveri die-shot. Does all of that really only contain 8 GCN CU's? Then there's the DDR3 PHY which is physically twice the size of Richland's, yet is functionally still just two-channel DDR3. There's definitely something fishy with it all.
post #3256 of 3492
Interesting, then it would be Intel broadwell vs Kaveri/Carrizo 2.0s. At least AMD has not show all of his cards yet.
post #3257 of 3492
Quote:
Originally Posted by poii View Post

So SeronX do I get it right, Kaveri has 2.41 billion transistors on die but only half of them are working?
Half of the compute related transistors are disabled, which is halfish of the die.

For example the two-path four wide decode is operational; able to give both cores 4 instructions per cycle. While only one of the instruction fetch units are enabled; two cycles per fetch. This gives the Steamroller core one instruction per cycle more than Richland and Trinity cores. The allows a KV-A1 core to have 0.83 times the clock rate of Richland for the same IPC.

****
Quote:
Originally Posted by poii View Post

Always thought they gave us the number of actually working transistors and I was wondering why Kaveri doesn't outperform Richland (that much) with nearly twice the transistor count.

IF that's the case could it explain the A8-7600 delay?
The delay of any KV-A1 parts are so far unrelated to KV-B0.
Quote:
Originally Posted by Papadope View Post

I'm really looking forward to Kaveri mobile now. thumb.gif
The Berlin and Kaveri 1.0 mobile parts using FP3 are still KV-A1. Consumers could be waiting till the second half for SP1(?) for mobile/embedded and SM1+ for desktop. These two sockets would house KV-B0 while also supporting Carrizo (full die enabled).

KV-B0 = 28nm-SHP
Carrizo = 20nm or 14nm node

Carrizo is most likely the die shrink of KV-B0. The equivalent of Agena which was 65nm to Deneb which was 45nm. While KV-B0 will have all the functionality of Carrizo. DDR3/DDR4/GDDR5/GDDR5M. DDR4 and GDDR5M can share the same interfaces and use the same DIMMs.

-
****:

KV-A1: 1 instruction fetch for one core every cycle; every cycle 4 instructions can be decoded per core; only 2 of those instructions can be executed per cycle..

Bulldozer/Piledriver -> Steamroller(A) is an increase of ~1 IPC.

KV-B0: 1 instruction fetch for both cores every cycle; every cycle 4 instructions can be decoded per cycle; all four can executed per cycle.
Edited by Seronx - 4/21/14 at 10:24pm
AMD FX ~Seronx
(16 items)
 
  
CPUMotherboardGraphicsRAM
FX-9800P Acer Wasp R7 M440 SK Hynix HMA41GS6AFR8N-TF 
Hard DriveHard DriveOptical DriveCooling
KINGSTON RBU-SNS8152S3128GG2 TOSHIBA MQ01ABD100 HL-DT-ST DVDRAM GUE1N Stock 
OSMonitorKeyboardPower
Microsoft Windows 10 Home Build 14393 Viewsonic XG2401 24 Hz-144 Hz Ducky Channel Shine 3 Stock 65W 
CaseMouseMouse PadAudio
Acer Exoskeleton Steelseries Rival 300 Razer Megasoma AMD-Realtek ALC255 
  hide details  
Reply
AMD FX ~Seronx
(16 items)
 
  
CPUMotherboardGraphicsRAM
FX-9800P Acer Wasp R7 M440 SK Hynix HMA41GS6AFR8N-TF 
Hard DriveHard DriveOptical DriveCooling
KINGSTON RBU-SNS8152S3128GG2 TOSHIBA MQ01ABD100 HL-DT-ST DVDRAM GUE1N Stock 
OSMonitorKeyboardPower
Microsoft Windows 10 Home Build 14393 Viewsonic XG2401 24 Hz-144 Hz Ducky Channel Shine 3 Stock 65W 
CaseMouseMouse PadAudio
Acer Exoskeleton Steelseries Rival 300 Razer Megasoma AMD-Realtek ALC255 
  hide details  
Reply
post #3258 of 3492
So will we Carrizo end up being the fully working and unlocked Kaveri or will it also feature improvements of its own. That really is one of the big questions.

I think they should postpone the real Carrizo and build unlocked Kaveri on 28nm with HDL this would reduce the power consumption more than enough to justify the extra parts being unlocked and still save some power probably.

Then 20LPM at GloFo for hopefully fully fledged Carrizo.
post #3259 of 3492
Quote:
Originally Posted by maarten12100 View Post

So will we Carrizo end up being the fully working and unlocked Kaveri or will it also feature improvements of its own. That really is one of the big questions.
Kaveri = ~50%
Carrizo = ~75%

Die Harvest Category: (bdver3 + bdver4)
FM2+ Kaveri = <4 (2-way) Cores + <8 GCN CUs + dual-channel DDR3
FM2+ Carrizo = <4 (4-way) Cores + <8 GCN CUs + dual-channel DDR3
FP3 Kaveri = <4 (2-way) Cores + <8 GCN CUs + dual-channel DDR3
FP3 Carrizo = <4 (4-way) Cores + <8 GCN CUs + dual-channel DDR3
FP4 Carrizo = <4 (4-way) Cores + <8 GCN CUs + dual-channel DDR4

Full Enabled Category: (bdver4 + bdver5)
SM1+/SP1 Kaveri = <4 (4-way) Cores + <16 GCN CUs + quad-channel DDR4/GDDR5M
SM1+/SP2 Carrizo = <4 (4-way) Cores + <16 GCN CUs + quad-channel DDR4/GDDR5M

Between Kaveri and Carrizo, the clock rates for; CPU, GPU, NB, and IMC should increase between 1.5x to 2x.
Quote:
Originally Posted by maarten12100 View Post

I think they should postpone the real Carrizo and build unlocked Kaveri on 28nm with HDL this would reduce the power consumption more than enough to justify the extra parts being unlocked and still save some power probably.
KV-A(x) to KV-B0 is 22nm Bulk with High Density Libraries.

http://cdn.overclock.net/6/63/63c5fdf9_gtc_2.jpeg <-- note the position of 22nm PDSOI.
http://www.brightsideofnews.com/Data/2011_9_11/Rumors-14nm-node-and-450mm-wafers-by-2015/GlobalFoundries_28nm_20nm.jpg <-- note the position of 22nm Bulk called 28nm SHP. 28nm-HPP isn't better than 28nm-SHP, 28nm-HPP is 28nm-HP with newer materials for better performance.

AMD probably told GlobalFoundries to forgo the PDSOI as they were tired of the "History Effect" / "Kink Effect" / "Floating Body Effect." While PDSOI was not really any more better than bulk and it probably cost more. In comparison once PDSOI is finally dead we will see FDSOI rise from its ashes with renewed strength. With none of PDSOI's problems and the ability to use the saved mask costs from bulk and FinFET bulk, for RBB and FBB.
Quote:
Originally Posted by maarten12100 View Post

Then 20LPM at GloFo for hopefully fully fledged Carrizo.
Carrizo might not stop at GF20LPM, it might go on to GF14LPE or GF14FD.

I'm pretty sure now that there will be a Thuban like generation after Carrizo;
Agena 65nm-SHP = Kaveri 28nm-SHP
Deneb 45nm-SHP = Carrizo 20nm/14nm
Thuban 45nm-SHP = Basilisk 20nm/14nm
Edited by Seronx - 4/22/14 at 1:09am
AMD FX ~Seronx
(16 items)
 
  
CPUMotherboardGraphicsRAM
FX-9800P Acer Wasp R7 M440 SK Hynix HMA41GS6AFR8N-TF 
Hard DriveHard DriveOptical DriveCooling
KINGSTON RBU-SNS8152S3128GG2 TOSHIBA MQ01ABD100 HL-DT-ST DVDRAM GUE1N Stock 
OSMonitorKeyboardPower
Microsoft Windows 10 Home Build 14393 Viewsonic XG2401 24 Hz-144 Hz Ducky Channel Shine 3 Stock 65W 
CaseMouseMouse PadAudio
Acer Exoskeleton Steelseries Rival 300 Razer Megasoma AMD-Realtek ALC255 
  hide details  
Reply
AMD FX ~Seronx
(16 items)
 
  
CPUMotherboardGraphicsRAM
FX-9800P Acer Wasp R7 M440 SK Hynix HMA41GS6AFR8N-TF 
Hard DriveHard DriveOptical DriveCooling
KINGSTON RBU-SNS8152S3128GG2 TOSHIBA MQ01ABD100 HL-DT-ST DVDRAM GUE1N Stock 
OSMonitorKeyboardPower
Microsoft Windows 10 Home Build 14393 Viewsonic XG2401 24 Hz-144 Hz Ducky Channel Shine 3 Stock 65W 
CaseMouseMouse PadAudio
Acer Exoskeleton Steelseries Rival 300 Razer Megasoma AMD-Realtek ALC255 
  hide details  
Reply
post #3260 of 3492
Well, knowing all this I still want a Kaveri laptop. It will still kick some butt and play games on high on the go, for now at least. But Kaveri laptops might not be here till the end of the year.
POWERFUL
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 6800K X99-UD3P-CF AMD Radeon R9 200 Series 16gb G.skill RipjawX 2400mhz DDR4 
Hard DriveHard DriveHard DriveOptical Drive
Samsung spinpoint f3  Western digital Caviar Black Adata SU800 512gb LG Super Multi DVD Burner 
CoolingOSMonitorMonitor
Noctua NH-U14S Windows 10 x64 pro Asus VA32AQ 31.5" 1440p Acer 19" LED 900p 
KeyboardPowerCaseMouse
Logitech G19 OCZ ZX 850w gold Cooler Master HAF XB Logitech G600 
Mouse PadAudioAudio
Custom Artscow Sennheiser 429 Logitech Z313 
  hide details  
Reply
POWERFUL
(19 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 6800K X99-UD3P-CF AMD Radeon R9 200 Series 16gb G.skill RipjawX 2400mhz DDR4 
Hard DriveHard DriveHard DriveOptical Drive
Samsung spinpoint f3  Western digital Caviar Black Adata SU800 512gb LG Super Multi DVD Burner 
CoolingOSMonitorMonitor
Noctua NH-U14S Windows 10 x64 pro Asus VA32AQ 31.5" 1440p Acer 19" LED 900p 
KeyboardPowerCaseMouse
Logitech G19 OCZ ZX 850w gold Cooler Master HAF XB Logitech G600 
Mouse PadAudioAudio
Custom Artscow Sennheiser 429 Logitech Z313 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › Steamroller?