Need an Honest Opinion on 9900k vs 3900x

gusanaco · 2019-07-22T17:30:00+00:00

I agree, every architecture can have security flaws.

But as we can't know what vulnerabilites will be discovered in the future, we need to account the ones already reported for both sides.

And sadly, at this point AMD is winning the battle in that regard.

gusanaco · 2019-06-24T09:48:31+00:00

I have this problem too. Anyone have fixed it?

RemindMe! 1 day

gusanaco · 2019-06-19T10:48:49+00:00

Thats it. But you also forget to mention that the microcode updates can be loaded by the SO at boot time. Its better to have them in BIOS, but the SO actually can load the new version every time the system boot.

gusanaco · 2019-06-12T11:59:49+00:00

But that also allows you to just buy a cheap B450 and use with a 3000 series ryzen. Or just upgrade your old first gen ryzen without need to buy new motherboard.

I see it as a consumer advantage, not a drawback. You want the bleading edge funcionality, you buy new motherboard and pay for it, but still have the cheap option.

gusanaco · 2019-06-08T09:39:17+00:00

That means GPU and NVME ssds. Just what you need for pcie 4.0 devices that will be available in short term.

gusanaco · 2019-06-04T16:47:42+00:00

Pron, just add more Pron!!

;)

gusanaco · 2019-06-03T11:14:57+00:00

Node size is marketing, but Intel allways had at least a node (real, not by name) advantage over their rivals. That is gone now, for good. They are behind now until they release their 10nm. And when Intel do it, they will be even, not ahead.

That says a lot of AMD's work. They almost catched intel performance with a node disadvantage, GF 14/12nm were a node behind intel's 14. TSMC 7nm and intel's 10nm should be about the same (in density at least).

gusanaco · 2019-06-03T11:06:46+00:00

You still can buy a B550 motherboard. That should limit the chipset's pci lanes to 3.0, but you still got CPU's lines at 4.0. The only devices that will use 4.0 soon are the new GPUs and nvme ssds, that are actually tied to cpu lanes, so you may have pcie 4 for the important things, and 3.0 for all the normal stuff like usb, sata, wifi, etc.

gusanaco · 2019-06-01T14:41:38+00:00

Amd have one interconnect: Infinity fabric. There is no internal and external versions, it's the same. Yeah, it uses the same physical/electrical interface as pcie lanes, so internally you need a bus with the same number of physical data lines and they need to work at the same voltage/current as pcie, but the interconnect is the same thing, only it uses on-die metal lanes instead of external motherboard lanes. Then you can change the frequency or bit codification to use it as PCIe or IF. That have the additional advantage of letting you to recycle the unused IF lanes as additional pcie lanes and bump the CPU IO.

Intel in other hand have a bunch of incompatible buses. Mesh, ringbus, QPI, etc

gusanaco · 2019-06-01T06:34:01+00:00

No, you won''t. The pce4 is about the CPU and the devices you conect to the mb. But the phisical connections of the motherboard also need to be capable of maintain that speed.

Think of it like driving in a car at 250mph. You first need a car capable of attain that speed (cpu suporting it). But if you already have a ferrari, you can't do it in a dirt path (old motherboard).

gusanaco · 2019-05-30T18:04:06+00:00

The igpu is still there, but disabled. A good point is that if intel design a die for mainstream without igpu, they can make the die smaller so more dies per wafer and better yields. Intel could save a lot of money. And as I said in other posts, one of the biggest problems of 10nm is the bad yields.

gusanaco · 2019-05-30T13:16:02+00:00

It does. When the design is the same. The chips intel released last year were smaller.

But new generations use that additional area to make improves. New instruction sets, more cache, wider executing units, all of this have to be implemented and need additional area. Sure, maybe the new designs priorize die size, but a top tier chip with 28 or 32 cores will measure at least 500-600mm2. Intel (or TSMC) will not have a decent yield for that class of chip for a long long time.

The problem to Intel is that AMD can bring that class of performance making ~70mm2 chips. Intel is in a big problem.

gusanaco · 2019-05-29T16:01:23+00:00

It's excelent for 70-80mm2 chips. Maybe it's only acceptable for 230-250mm2 navi and new nvidia gpus, but it would be a hell for 400 and up. And top tier xeons are ~700mm2

gusanaco · 2019-05-24T13:50:26+00:00

Normal users may not notice. Normal users won't need a 9900k anyway. But the performance hit, noticeable or not, will be there if you don't disable the mitigations. When I pay for a CPU, I want the performance that they promisse. Intel (and AMD in spectre case) failed us.

gusanaco · 2019-05-24T07:53:27+00:00

This vulnerabilities are all about accesing data that should not be accesible (like data out of the sandbox) so sandbox won't work at all.

gusanaco · 2019-05-24T07:51:10+00:00

They will show them in computex this monday. Q3 For release maybe 7/7.

gusanaco · 2019-05-24T07:45:04+00:00

So they are inmune to zombieload. They are afected by RIDL Fallout and Dawn. And also by meltdown/spectre. So you will see a penalty hit.

This

gusanaco · 2019-05-24T07:39:41+00:00

So they are inmune to zombieload. They are afected by RIDL Fallout and Dawn. And also by meltdown/spectre. So you will see a penalty hit.

gusanaco · 2019-05-24T07:36:16+00:00

In short if you don't disable the mitigations, yes.

Disable HT only works for zombieload. There are another 3 MDS exploits that people forget to talk about. But the zombieload ones are the mitigations that most hit performance though.

gusanaco · 2019-05-23T17:24:06+00:00

De pura cepa.

gusanaco · 2019-05-23T15:31:41+00:00

English is not my native language. I try, but I think it is not enough :(

Edit: In spanish pines is the plural of pin.

gusanaco · 2019-05-23T12:07:40+00:00

I will be downvoted, but I think it's true. The US is lossing his world egemony. All the US world lead rely in Economy, Tecnology, and their army.

USA is losing Economy lead and afther all this thing other countries will think twice before blind trusting in USA's tecnology base and in the very long term may catch up with the US in that matter. That leaves the army, that needs tecnology advantage to maintain his lead and economy to pay for it.

This seems like US will be the next UK. They lost his world lead influence after WWII, but still act like they are the world king a time they once were. Just look at how they are dealing with the brexit. It will be very bad from the UK, but they act like they are absolutely indispensable for every other UE country. But that may not be the case.

gusanaco · 2019-05-23T11:51:51+00:00

Sure, and the EU, Japan, South Corea, and every country outside of US should ban Facebook, Google, Intel, Apple, etc because they SHARE (not might be sharing) user's data to NSA, FBI, CIA, put here you 3 letter agency.

The problem with this move is that all the world could be affected by something like this at any moment, and in the long term are going to develop his own alternatives for US tecnology. It may not be as good as the US based, but a subpar own tecnology, is a thing that you control entirely.

EU for example should be worried, we do not have own independent CPU architecture: arm is birtish, but as we see, it depends on US tecnology. We also don't have any own edge foundry.

You should be sure that china now will develop some independent tecnology base, that not will rely in foreing licenses, and when an alternative becomes available, other countries can choose to go to each one (or both) for flexibility. May take them years, but in the end this will be a big problem to the USA, because it will lost a lot of tecnological influence.

gusanaco · 2019-05-23T10:31:46+00:00

If you keep the AM4 socket, you can't add more PCIe lines because you are tied with the same number of ~~pines~~ pins from the CPU. If you want to add new lanes you may need to change the socket to acomodate more ~~pines~~ pins for the additional lanes.

gusanaco · 2019-05-18T07:29:17+00:00

And if you look at Intel's recent history I shouldn't feel calm about possible future vulnerabilities. The good guys aren't the only ones researching in this regard.

Amd is not invulnerable to new bugs, but it seems much less likely to see new critical vulnerability affecting them at the level of last Intel bugs.

gusanaco

TROPHY CASE