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DPete27
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AMD WattMan VRAM Timings (new)

Mon Feb 11, 2019 12:28 pm

Just noticed AMD WattMan has acquired a new feature: VRAM timing profiles - Auto (stock) - Level 1 - and Level 2.
Has anybody played around with this yet?

I chose Level 2 on my Undervolted RX480 and instantly saw a 6% increase in FPS using FurMark. Still need to test some games. Today, I'm testing what it does to my VRAM voltage setting to see if I need to add some juice. If all goes well, it seems like a nice way to get a 6% performance increase without cranking up core clocks and voltages.
Main: i5-3570K, ASRock Z77 Pro4-M, MSI RX480 8G, 500GB Crucial BX100, 2 TB Samsung EcoGreen F4, 16GB 1600MHz G.Skill @1.25V, EVGA 550-G2, Silverstone PS07B
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Waco
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Re: AMD WattMan VRAM Timings (new)

Mon Feb 11, 2019 12:51 pm

Oh, neat! That'd be a nice little boost if it's stable across a wide range of tests.
Desktop: Z170A Gaming Pro Carbon | 6700K @ 4.4 | 16 GB | Radeon VII | XSPC RX360 | Heatkiller R3 | Samsung 4K 40" | 2048 + 240 + LSI 9207-8i (128x8) SSD
NAS: 1950X | Designare EX | 32 GB ECC | 7x8 TB RAIDZ2 | 8x2 TB RAID10 | FreeNAS | ZFS | LSI SAS
 
Topinio
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Re: AMD WattMan VRAM Timings (new)

Mon Feb 11, 2019 3:07 pm

Neat, seconded. I'm planning on installing 19.2.1 after tomorrow's Microsoft patches are done with, and will see if it's there on RX Vega 56 (as some options are different in WattMan between that card and my RX 580).

I did see that it now has a section called 'Tuning Control' with 4 choices -- 'Manual', 'Auto Undervolt GPU', 'Auto Overclock GPU', and 'Auto Overclock Memory' -- so I might play around with that as well.
Desktop: E3-1270 v5, X11SAT-F, 32GB, RX Vega 56, 500GB Crucial P1, 2TB Ultrastar, Xonar DGX, XL2730Z + G2420HDB
HTPC: i5-2500K, DH67GD, 6GB, RX 580, 250GB MX500, 1.5TB Barracuda
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Waco
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Re: AMD WattMan VRAM Timings (new)

Mon Feb 11, 2019 5:45 pm

Hopefully the issues with Radeon VII's and WattMan are resolved soon. I'm anxious to get to playing with my card when it arrives tomorrow!
Desktop: Z170A Gaming Pro Carbon | 6700K @ 4.4 | 16 GB | Radeon VII | XSPC RX360 | Heatkiller R3 | Samsung 4K 40" | 2048 + 240 + LSI 9207-8i (128x8) SSD
NAS: 1950X | Designare EX | 32 GB ECC | 7x8 TB RAIDZ2 | 8x2 TB RAID10 | FreeNAS | ZFS | LSI SAS
 
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Re: AMD WattMan VRAM Timings (new)

Tue Feb 12, 2019 12:56 pm

Hopefully, it isn't a card that wasn't flashed with UEFI at the factory.
Gigabyte Z390 AORUS-PRO Coffee Lake R 9700K, 2x8GiB of G.Skill DDR4-3600, Sapphire RX Vega 64, Corsair CX-750M V2 and Fractal Define R4 (W)
Ivy Bridge 3570K, 2x4GiB of G.Skill RIPSAW DDR3-1600, Gigabyte Z77X-UD3H, Corsair CX-750M V2, and PC-7B
 
Waco
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Re: AMD WattMan VRAM Timings (new)

Tue Feb 12, 2019 3:25 pm

I run in CSM mode anyway, so lack of UEFI won't be a tripping point at least initially.
Desktop: Z170A Gaming Pro Carbon | 6700K @ 4.4 | 16 GB | Radeon VII | XSPC RX360 | Heatkiller R3 | Samsung 4K 40" | 2048 + 240 + LSI 9207-8i (128x8) SSD
NAS: 1950X | Designare EX | 32 GB ECC | 7x8 TB RAIDZ2 | 8x2 TB RAID10 | FreeNAS | ZFS | LSI SAS
 
Topinio
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Re: AMD WattMan VRAM Timings (new)

Tue Feb 12, 2019 6:20 pm

Can you see if it has a 'Tuning Control' section in WattMan or not? My RX Vega 56 has it, but my RX 580 does not.

FWIW:

The 'Auto Overclock Memory' does nothing I can discern.

The 'Auto Undervolt GPU' choice seems to put the chip down to bouncing around in the range 0.96-1.11 V, 135 to 150 W for 1468 to 1486 MHz
versus 1.00 to 1.16 V, 158 to 173 W, and 1483 to 1493 MHz in WattMan's Turbo mode.
(All figures from GPU-Z, IIRC my physical BIOS selector is for the lower-power secondary BIOS. Does the Radeon VII have that?)

I've not tested 'Auto Overclock GPU' yet.
Desktop: E3-1270 v5, X11SAT-F, 32GB, RX Vega 56, 500GB Crucial P1, 2TB Ultrastar, Xonar DGX, XL2730Z + G2420HDB
HTPC: i5-2500K, DH67GD, 6GB, RX 580, 250GB MX500, 1.5TB Barracuda
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Waco
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Re: AMD WattMan VRAM Timings (new)

Tue Feb 12, 2019 6:29 pm

I'll check on that. I hope to get to initial testing tonight. I don't believe there's a BIOS switch on the Radeon VII.
Desktop: Z170A Gaming Pro Carbon | 6700K @ 4.4 | 16 GB | Radeon VII | XSPC RX360 | Heatkiller R3 | Samsung 4K 40" | 2048 + 240 + LSI 9207-8i (128x8) SSD
NAS: 1950X | Designare EX | 32 GB ECC | 7x8 TB RAIDZ2 | 8x2 TB RAID10 | FreeNAS | ZFS | LSI SAS
 
Waco
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Re: AMD WattMan VRAM Timings (new)

Tue Feb 12, 2019 9:11 pm

Memory timings are there (and yield a decent boost, 3.X% on initial benchmarks). Auto undervolt works out of the box, similar performance boost (it disables the memory tweak though).

I'll set up my watt meter by this weekend to compare profiles and ensure stability.
Desktop: Z170A Gaming Pro Carbon | 6700K @ 4.4 | 16 GB | Radeon VII | XSPC RX360 | Heatkiller R3 | Samsung 4K 40" | 2048 + 240 + LSI 9207-8i (128x8) SSD
NAS: 1950X | Designare EX | 32 GB ECC | 7x8 TB RAIDZ2 | 8x2 TB RAID10 | FreeNAS | ZFS | LSI SAS
 
DPete27
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Re: AMD WattMan VRAM Timings (new)

Wed Feb 13, 2019 9:36 am

From what I've seen around the net, the Auto Undervolt is garbage (if it works at all). Slightly smaller sampling says Auto OC isn't that fantastic either. Seems you're MUCH better off doing those things manually.
Main: i5-3570K, ASRock Z77 Pro4-M, MSI RX480 8G, 500GB Crucial BX100, 2 TB Samsung EcoGreen F4, 16GB 1600MHz G.Skill @1.25V, EVGA 550-G2, Silverstone PS07B
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Waco
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Re: AMD WattMan VRAM Timings (new)

Wed Feb 13, 2019 12:33 pm

My initial shot with auto-undervolt was successful, but it very quickly crashed playing a game. Definitely not an easy button except for *maybe* benchmarking quickly.
Desktop: Z170A Gaming Pro Carbon | 6700K @ 4.4 | 16 GB | Radeon VII | XSPC RX360 | Heatkiller R3 | Samsung 4K 40" | 2048 + 240 + LSI 9207-8i (128x8) SSD
NAS: 1950X | Designare EX | 32 GB ECC | 7x8 TB RAIDZ2 | 8x2 TB RAID10 | FreeNAS | ZFS | LSI SAS
 
DPete27
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Re: AMD WattMan VRAM Timings (new)

Wed Feb 13, 2019 12:57 pm

Yeah, instability is the #1 complaint in the Auto Undervolt comments. I think 100mV undervolt is a bit aggressive. From my experience, you can pull out about 50-60mV (below stock) at a given frequency and still be stable (for GloFo 14nm GPUs).

I ran Memory Timing Level 2 on F@H (best GPU test I've found) for 14 hours stable without having to adjust my RX480's 2000MHz/900mV VRAM setting.
I didn't do any exploration on lower VRAM voltage when I chose 900mV two years ago. I just picked it as a nice round number and tested it stable (got me down to Freq. State 4 for use with FRTC/Chill). Seems I had a little wiggle room left.
Main: i5-3570K, ASRock Z77 Pro4-M, MSI RX480 8G, 500GB Crucial BX100, 2 TB Samsung EcoGreen F4, 16GB 1600MHz G.Skill @1.25V, EVGA 550-G2, Silverstone PS07B
HTPC: A8-5600K, MSI FM2-A75IA-E53, 4TB Seagate SSHD, 8GB 1866MHz G.Skill, Crosley D-25 Case Mod
 
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Re: AMD WattMan VRAM Timings (new)

Wed Feb 13, 2019 2:32 pm

Yeah, instability is the #1 complaint in the Auto Undervolt comments. I think 100mV undervolt is a bit aggressive. From my experience, you can pull out about 50-60mV (below stock) at a given frequency and still be stable (for GloFo 14nm GPUs).


That may be true for Polaris, but I can undervolt my reference V64 Air by >100mV on the top two performance states without issue (1.01V and 1.06V for P6 and P7 versus 1.2V and 1.15V; normally runs around 1620MHz in games).
 
DPete27
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Re: AMD WattMan VRAM Timings (new)

Wed Feb 13, 2019 2:47 pm

I had some strange things with my RX480. Sometimes Auto voltage would give it 1075mV@1305MHz and other times it was 1150mV. For that frequency, I was able to get 1020mV stable. So it probably depends on where your card starts as your reference to "stock" voltage.
Main: i5-3570K, ASRock Z77 Pro4-M, MSI RX480 8G, 500GB Crucial BX100, 2 TB Samsung EcoGreen F4, 16GB 1600MHz G.Skill @1.25V, EVGA 550-G2, Silverstone PS07B
HTPC: A8-5600K, MSI FM2-A75IA-E53, 4TB Seagate SSHD, 8GB 1866MHz G.Skill, Crosley D-25 Case Mod

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