AMD Announces Steps, Resources for Spectre Mitigations

R-T-B · Apr 12, 2018

Vya Domus said:
We keep hearing that "AMD is getting crushed" for what , more than a decade now ? How does that work ?

Debt.

sutyi · Apr 12, 2018

lexluthermiester said:
Not surprising. The biggest impact to performance is going to be ram/storage access. Did you benchmark your ram and drive access before and after the patch?

Only thing I can give you AIDA64 Cache & Memory before and after. Earlier one is on AGESA PR 1.0.0.0a, the current one is on AGESA PR 1.0.0.1a and somewhat looser timings. It seems pretty much the same to me although I probably can't fully replicate the conditions as I have no clue what was running in the back ground back then. CPU clock is the same.

Really old - AGESA SR 1.0.0.6:

Before patch - AGESA PR 1.0.0.0a:

After patch - AGESA PR 1.0.0.1a:

lexluthermiester · Apr 13, 2018

sutyi said:
Only thing I can give you AIDA64 Cache & Memory before and after. Earlier one is on AGESA PR 1.0.0.0a, the current one is on AGESA PR 1.0.0.1a and somewhat looser timings. It seems pretty much the same to me although I probably can't fully replicate the conditions as I have no clue what was running in the back ground back then. CPU clock is the same.

Really old - AGESA SR 1.0.0.6:
View attachment 99656

Before patch - AGESA PR 1.0.0.0a:
View attachment 99655

After patch - AGESA PR 1.0.0.1a:
View attachment 99654

Looks like minimal effect to me.

System Name	Pioneer
Processor	Ryzen 9 9950X
Motherboard	MSI MAG X670E Tomahawk Wifi
Cooling	Noctua NH-D15 + A whole lotta Sunon, Phanteks and Corsair Maglev blower fans...
Memory	64GB (2x 32GB) G.Skill Flare X5 @ DDR5-6200(Running 1T no GDM)
Video Card(s)	XFX RX 7900 XTX Speedster Merc 310
Storage	Intel 5800X Optane 800GB boot, +2x Crucial P5 Plus 2TB PCIe 4.0 NVMe SSDs, 1x 2TB Seagate Exos 3.5"
Display(s)	55" LG 55" B9 OLED 4K Display
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Mouse	Logitech G305 Lightspeed Wireless
Keyboard	WASD Code v3 with Cherry Green keyswitches + PBT DS keycaps
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System Name	masina
Processor	AMD Ryzen 5 3600
Motherboard	ASUS TUF B550M
Cooling	Scythe Kabuto 3 + Arctic BioniX P120 fan
Memory	16GB (2x8) DDR4-3200 CL16 Crucial Ballistix
Video Card(s)	Radeon Pro WX 2100 2GB
Storage	500GB Crucial MX500, 640GB WD Black
Display(s)	AOC C24G1
Case	SilentiumPC AT6V
Power Supply	Seasonic Focus GX 650W
Mouse	Logitech G203
Keyboard	Cooler Master MasterKeys L PBT
Software	Win 10 Pro

AMD Announces Steps, Resources for Spectre Mitigations

R-T-B

sutyi

lexluthermiester