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The speculative execution CPU bug that literally kneecapped Intel, also affects many AMD and ARM processors. This means BILLIONS of CPUs around the world, including those powering smartphones, are affected by Meltdown and/or Spectre.
Our article Everything On The Meltdown + Spectre CPU Flaws! summarises the key details of the speculative execution bug, and what we can do about it. This guide is to help those who want a full list of affected CPUs. Because we intend this to be an exhaustive list, we split it into multiple sections.
Article Update History
What Are Meltdown And Spectre?
Meltdown and Spectre are two exploits that take advantage of three variants of the speculative execution bug that affects billions of CPUs around the world.
The Spectre exploit targeted Variants 1 and 2, while the Meltdown exploit targets Variant 3, of the CPU bug.
For more information on the speculative execution bug, and the Meltdown / Spectre exploits, please read Everything On The Meltdown + Spectre CPU Flaws!
The CPUs Vulnerable To Meltdown / Spectre Updated!
For easy reference, we divided the affected CPUs by Company (arranged ALPHABETICALLY – no conspiracy, we promise), and subsequently by Segment (Workstation / Desktop / Mobile), or affected variants.
- AMD Server CPUs Vulnerable To Spectre
- AMD Workstation + Desktop CPUs Vulnerable To Spectre
- AMD Mobile CPUs Vulnerable To Spectre
- Apple CPUs Vulnerable To Meltdown / Spectre
- ARM CPUs Vulnerable To Meltdown / Spectre
- IBM POWER CPUs Vulnerable To Meltdown + Spectre
- Intel UMPC / Smartphone SoCs Vulnerable To Meltdown + Spectre
- Intel Server + Workstation CPUs Vulnerable To Meltdown + Spectre
- Intel Desktop CPUs Vulnerable To Meltdown + Spectre
- Intel Mobile CPUs Vulnerable To Meltdown + Spectre
- VIA Desktop + Mobile CPUs Vulnerable To Meltdown + Spectre
As of Revision 8.0, we believe we have covered all of the affected AMD, Apple, ARM, IBM, Intel and VIA CPUs. But we will add more CPUs (and devices) as and when they’re noted to be vulnerable to the Meltdown and Spectre exploits.
Note : It’s arguable that all CPUs that uses speculative execution to any degree are potentially vulnerable to Meltdown or Spectre or a future exploit. We will only focus on CPUs that are confirmed to be vulnerable to Meltdown or Spectre.
Vulnerable CPUs By The Numbers Updated!
Here is a quick summary of the number of CPUs vulnerable to Meltdown or Spectre, according to the company, and the type of processor.
| Company | Spectre 1 | Spectre 2 | Meltdown |
| AMD | 295 Server CPUs 42 Workstation CPUs 396 Desktop CPUs 208 Mobile CPUs |
295 Server CPUs 42 Workstation CPUs 396 Desktop CPUs 208 Mobile CPUs |
None |
| Apple | 13 Mobile SoCs | 13 Mobile SoCs | 13 Mobile SoCs |
| ARM | 10 Mobile CPUs 3 Server SoCs |
10 Mobile CPUs 3 Server SoCs |
4 Mobile CPUs 3 Server SoCs |
| IBM | 5 z/Architecture CPUs 10 POWER CPUs |
5 z/Architecture CPUs 10 POWER CPUs |
5 z/Architecture CPUs 10 POWER CPUs |
| Intel | 733 Server / Workstation CPUs 443 Desktop CPUs 584 Mobile CPUs 51 Mobile SoCs |
733 Server / Workstation CPUs 443 Desktop CPUs 584 Mobile CPUs 51 Mobile SoCs |
733 Server / Workstation CPUs 443 Desktop CPUs 584 Mobile CPUs 51 Mobile SoCs |
| VIA | 10 Desktop CPUs 12 Mobile CPUs |
10 Desktop CPUs 12 Mobile CPUs |
10 Desktop CPUs 12 Mobile CPUs |
|
Total |
2816 CPUs | 2816 CPUs | 1868 CPUs |
Meltdown + Spectre Reading Suggestions
[adrotate group=”2″]- Everything On The Meltdown + Spectre CPU Flaws!
- The Complete List Of CPUs Vulnerable To Meltdown / Spectre
- The Microsoft Spectre + Meltdown Patch Schedule
- The Intel Spectre Reboot Issue – Everything You Need To Know!
- Intel Penryn CPUs Also Vulnerable To Meltdown + Spectre
- The Complete AMD Spectre Mitigation Strategy Guide
- The Apple Spectre + Meltdown Patches Detailed
- These Windows 10 Updates Are Bricking AMD PCs!
- Pre-2016 Intel CPUs Hit Worst By Meltdown + Spectre Fix
- Yes, AMD CPUs Are Also Vulnerable To Spectre 2 Exploit
- AMD K10 And K8 Processors Also Vulnerable To Spectre
- KB3078130 : Emergency Windows Update To Disable Intel Spectre Patches!
The AMD Server CPUs Vulnerable To Spectre
Affected Variants : AMD CPUs are affected by both Variants 1 and 2 of the speculative execution CPU bug. Colloquially, many people refer to them as Spectre 1 and Spectre 2.
AMD Server CPUs Vulnerable To Spectre
AMD Naples (2017)
- AMD EPYC 7601
- AMD EPYC 7551
- AMD EPYC 7551P
- AMD EPYC 7501
- AMD EPYC 7451
- AMD EPYC 7401
- AMD EPYC 7401P
- AMD EPYC 7351
- AMD EPYC 7351P
- AMD EPYC 7301
- AMD EPYC 7281
- AMD EPYC 7251
AMD Toronto (2017)
- AMD Opteron X3421
- AMD Opteron X3418
- AMD Opteron X3416
AMD Kyoto (2013)
- AMD Opteron X2170
- AMD Opteron X2150
- AMD Opteron X1150
AMD Abu Dhabi (2012)
- AMD Opteron 6386 SE
- AMD Opteron 6380
- AMD Opteron 6378
- AMD Opteron 6370P
- AMD Opteron 6366 HE
- AMD Opteron 6348
- AMD Opteron 6344
- AMD Opteron 6338P
- AMD Opteron 6328
- AMD Opteron 6320
- AMD Opteron 6308
AMD Seoul (2012)
- AMD Opteron 4386
- AMD Opteron 4376 HE
- AMD Opteron 43GK HE
- AMD Opteron 4365 EE
- AMD Opteron 4340
- AMD Opteron 4334
- AMD Opteron 4332 HE
- AMD Opteron 4310 EE
- AMD Opteron 43CX EE
AMD Delhi (2012)
- AMD Opteron 3380
- AMD Opteron 3365
- AMD Opteron 3350 HE
- AMD Opteron 3320 EE
AMD Zurich (2012)
- AMD Opteron 3280
- AMD Opteron 3260 HE
- AMD Opteron 3250 HE
AMD Interlagos (2011)
- AMD Opteron 6284 SE
- AMD Opteron 6282 SE
- AMD Opteron 6278
- AMD Opteron 6276
- AMD Opteron 6274
- AMD Opteron 6272
- AMD Opteron 6262 HE
- AMD Opteron 6238
- AMD Opteron 6234
- AMD Opteron 6230 HE
- AMD Opteron 6220
- AMD Opteron 6212
- AMD Opteron 6204
AMD Valencia (2011)
- AMD Opteron 4284
- AMD Opteron 4280
- AMD Opteron 4276 HE
- AMD Opteron 4274 HE
- AMD Opteron 42MX HE
- AMD Opteron 4256 EE
- AMD Opteron 4240
- AMD Opteron 4238
- AMD Opteron 4234
- AMD Opteron 4230 HE
- AMD Opteron 4228 HE
- AMD Opteron 4226
- AMD Opteron 42DX EE
AMD Magny-Cours (2010)
- AMD Opteron 6180 SE
- AMD Opteron 6176 SE
- AMD Opteron 6176
- AMD Opteron 6174
- AMD Opteron 6172
- AMD Opteron 6168
- AMD Opteron 6164 HE
- AMD Opteron 6140
- AMD Opteron 6136
- AMD Opteron 6134
- AMD Opteron 6132 HE
- AMD Opteron 6128
- AMD Opteron 6128 HE
- AMD Opteron 61QS
- AMD Opteron 61KS
- AMD Opteron 6124 HE
AMD Lisbon (2010)
- AMD Opteron 4184
- AMD Opteron 4180
- AMD Opteron 4176 HE
- AMD Opteron 4174 HE
- AMD Opteron 4171 HE
- AMD Opteron 4170 HE
- AMD Opteron 41KX HE
- AMD Opteron 4164 EE
- AMD Opteron 4162 EE
- AMD Opteron 41GL EE
- AMD Opteron 4133
- AMD Opteron 4130
- AMD Opteron 4122
- AMD Opteron 41QS HE
- AMD Opteron 41LE HE
AMD Istanbul (2009)
- AMD Opteron 8439 SE
- AMD Opteron 8435
- AMD Opteron 8431
- AMD Opteron 8425 HE
- AMD Opteron 8423
- AMD Opteron 8419
- AMD Opteron 8419 EE
- AMD Opteron 2439 SE
- AMD Opteron 2435
- AMD Opteron 2431
- AMD Opteron 2427
- AMD Opteron 2425 HE
- AMD Opteron 2423 HE
- AMD Opteron 2419
- AMD Opteron 2419 EE
AMD Suzuka (2009)
- AMD Opteron 1389
- AMD Opteron 1385
- AMD Opteron 1381
- AMD Opteron 13QS HE
- AMD Opteron 13KS EE
AMD Shanghai (2009)
- AMD Opteron 8393 SE
- AMD Opteron 8389
- AMD Opteron 8387
- AMD Opteron 8386 SE
- AMD Opteron 8384
- AMD Opteron 8382
- AMD Opteron 8381 HE
- AMD Opteron 8380
- AMD Opteron 8379 HE
- AMD Opteron 8378
- AMD Opteron 83VS
- AMD Opteron 8374 HE
- AMD Opteron 83QS HE
- AMD Opteron 2393 SE
- AMD Opteron 2389
- AMD Opteron 2387
- AMD Opteron 2386 SE
- AMD Opteron 2384
- AMD Opteron 2382
- AMD Opteron 2381 HE
- AMD Opteron 2380
- AMD Opteron 2379 HE
- AMD Opteron 2378
- AMD Opteron 2377 EE
- AMD Opteron 2376
- AMD Opteron 2376 HE
- AMD Opteron 23VS
- AMD Opteron 2374 HE
- AMD Opteron 2373 EE
- AMD Opteron 2372 HE
- AMD Opteron 23QS HE
- AMD Opteron 23KS EE
AMD Budapest (2008)
- AMD Opteron 1356
- AMD Opteron 1354
- AMD Opteron 1352
AMD Barcelona (2007)
- AMD Opteron 8360 SE
- AMD Opteron 8357 SE
- AMD Opteron 8356
- AMD Opteron 8354
- AMD Opteron 8352
- AMD Opteron 8350
- AMD Opteron 8350 HE
- AMD Opteron 8347
- AMD Opteron 8347 HE
- AMD Opteron 8346 HE
AMD Santa Rosa (2006)
- AMD Opteron 8224 SE
- AMD Opteron 8222 SE
- AMD Opteron 8222
- AMD Opteron 8220 SE
- AMD Opteron 8220
- AMD Opteron 8218
- AMD Opteron 8218 HE
- AMD Opteron 8216
- AMD Opteron 8216 HE
- AMD Opteron 8214
- AMD Opteron 8214 HE
- AMD Opteron 8212
- AMD Opteron 8212 HE
- AMD Opteron 8210 EE
- AMD Opteron 2224 SE
- AMD Opteron 2222 SE
- AMD Opteron 2222
- AMD Opteron 2220 SE
- AMD Opteron 2220
- AMD Opteron 2218
- AMD Opteron 2218 HE
- AMD Opteron 2216
- AMD Opteron 2216 HE
- AMD Opteron 2214
- AMD Opteron 2214 HE
- AMD Opteron 2212
- AMD Opteron 2212 HE
- AMD Opteron 2210
- AMD Opteron 2210 HE
- AMD Opteron 2210 EE
- AMD Opteron 2208 HE
AMD Santa Ana (2006)
- AMD Opteron 1224 SE
- AMD Opteron 1222 SE
- AMD Opteron 1222
- AMD Opteron 1220 SE
- AMD Opteron 1220
- AMD Opteron 1218
- AMD Opteron 1218 HE
- AMD Opteron 1216
- AMD Opteron 1216 HE
- AMD Opteron 1214
- AMD Opteron 1214 HE
- AMD Opteron 1212
- AMD Opteron 1212 HE
- AMD Opteron 1210
- AMD Opteron 1210 HE
- AMD Opteron 1210 EE
AMD Egypt (2005)
- AMD Opteron 890
- AMD Opteron 885
- AMD Opteron 880
- AMD Opteron 875
- AMD Opteron 875 HE
- AMD Opteron 870
- AMD Opteron 870 HE
- AMD Opteron 865
- AMD Opteron 865 HE
- AMD Opteron 860 HE
AMD Italy (2005)
- AMD Opteron 290
- AMD Opteron 285
- AMD Opteron 280
- AMD Opteron 275
- AMD Opteron 275 HE
- AMD Opteron 270
- AMD Opteron 270 HE
- AMD Opteron 265
- AMD Opteron 265 HE
- AMD Opteron 260 HE
AMD Denmark (2005)
- AMD Opteron 190
- AMD Opteron 185
- AMD Opteron 180
- AMD Opteron 175
- AMD Opteron 170
- AMD Opteron 165
AMD Athens (2004)
- AMD Opteron 856
- AMD Opteron 854
- AMD Opteron 852
- AMD Opteron 850
- AMD Opteron 850 HE
- AMD Opteron 848
- AMD Opteron 848 HE
- AMD Opteron 846
- AMD Opteron 846 HE
- AMD Opteron 844
- AMD Opteron 842
AMD Troy (2004)
- AMD Opteron 256
- AMD Opteron 254
- AMD Opteron 252
- AMD Opteron 250
- AMD Opteron 250 HE
- AMD Opteron 248
- AMD Opteron 248 HE
- AMD Opteron 246
- AMD Opteron 246 HE
- AMD Opteron 244
- AMD Opteron 242
AMD Venus (2004)
- AMD Opteron 156
- AMD Opteron 154
- AMD Opteron 152
- AMD Opteron 150
- AMD Opteron 148
- AMD Opteron 148 HE
- AMD Opteron 146
- AMD Opteron 144
- AMD Opteron 142
AMD Sledgehammer (2003)
- AMD Opteron 850
- AMD Opteron 848
- AMD Opteron 846
- AMD Opteron 846 HE
- AMD Opteron 844
- AMD Opteron 842
- AMD Opteron 840
- AMD Opteron 840 EE
- AMD Opteron 250
- AMD Opteron 248
- AMD Opteron 246
- AMD Opteron 246 HE
- AMD Opteron 244
- AMD Opteron 242
- AMD Opteron 240
- AMD Opteron 240 EE
- AMD Opteron 150
- AMD Opteron 148
- AMD Opteron 146
- AMD Opteron 146 HE
- AMD Opteron 144
- AMD Opteron 142
- AMD Opteron 140
- AMD Opteron 140 EE
Next Page > AMD Workstation & Desktop CPUs Vulnerable To Spectre
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Pingback: Everything We Know About The Intel, AMD & ARM CPU Bug! - Tech ARP
Thank you for making this list, it’s very helpful, and much appreciated.
I’m interested to know if the Core 2 Duo range of CPUs is affected.
It’s our pleasure. We will be adding more CPUs to the list shortly, and will keep updating it when we get more details.
Right now, no, the Core 2 Duo range of CPUs are not affected.
Any info on Intel Core 2 Duo E8400 Desktop?
So far, it’s not listed as being affected by Meltdown or Spectre.
Pingback: Everything On The Intel, AMD & ARM CPU Bug! Rev. 2.0 - Tech ARP
Many thanks
What’s the source for this list? How do you know it is accurate? The processor manufacturers don’t even provide this level of detail?l.
No, they don’t provide this level of detail. If they did, we wouldn’t need to come up with this list.
We sourced them from the documents and other information released by the manufacturers. The same information other people can verify on their own.
They are accurate. In fact, we have been overly conservative, which is why we keep adding more CPUs over time.
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I see Core 2 Duo E8400 has appeared on the list, who is testing these CPUs?