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What is the deal with used CPU prices?

No, this is not the start of a Seinfeld bit...

 

I've been looking to pick up a Used CPU to either build a budget multi-core system, or to get the most out of an old AMD system I have sitting around. But the market for used CPUs seems to be crazy! The best CPU I could put in my old AMD system is a Phenon II X6 1100T. It's a 6 core processor from 10 years ago. It was pretty nice back then, but now it lacks hyper-threading, and only has the power of a ~$60 Athlon 3000G. How much do people want for these things used? $100 to $120 on both eBay and AliExpress. 

 

It just leaves me shaking my head... why? I'd like to get a little extra mileage from an aging system, but how do I justify spending more than a new CPU with roughly equivalent power?

Ham-out.

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That doesn't surprise me at all, Phenom II X6s still pack a decent punch even these days.

 

@CircleTech can probably go into a lot more detail than me as to exactly why they're worth that much, but I'd be willing to bet it's partially based on performance, partially based on supply and demand.

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The main reason why cpu prices are high when sold individually is due to capitalizing on people already invested in the platform. You usually get better deals picking up complete or partial systems if you're buying into an old platform. For example, good samples of my 4790k price all over the damn place by merit of being such a strong cpu for its platform

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As a general rule, the most powerful option of each platform will demand a large premium on the used market. Step down a tier or 2 and see

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Why not sell your current PC and buy a new one?

Intel Core i5-3570K @ 4.2Ghz @ 1.16V (CPU-Z + LinX)

Gigabyte Z77X-UD5H F16K BIOS

ASUS RX570 Strix Gaming 4GB 1300/1750

Kingston HyperX DDR3 8GB @ DDR-1600

Corsair AX750

Samsung 860 EVO 500GB and Western Digital Red 3TB

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For $100 you can find old i5s or i7s for 1151.

My sound system costs more than my PC.        Check out my S340 build log "White Heaven"        The "LIGHTCANON" flashlight build log        Project AntiRoll (prototype)        Custom speaker project

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Intel i7 4790k | AMD Vega 64 | ASUS Sabertooth Z97 Mark S | Corsair Vengeance Pro 32GB | NZXT S340 | Seasonic Platinum 760 | modded H100i | Coolermaster SK630 White | Logitech MX Master 2S | 2x Samsung 850 Pro 512GB | WD Red 4TB Samsung 58" 4k TV | 2x Behringer NEKKST K8 | BIC Acoustech H-100II | Scarlett 2i4 | 2x AT2020

 

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2 hours ago, geokilla said:

Why not sell your current PC and buy a new one?

Bottom line, I don't really need a new one, just looking to extend the life of this one.

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2 hours ago, RGProductions said:

As a general rule, the most powerful option of each platform will demand a large premium on the used market. Step down a tier or 2 and see

You've definitely nailed it. Dropping down one step lowers the price to about $75.

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15 hours ago, STHam said:

but how do I justify spending more than a new CPU with roughly equivalent power?

Imo, I don't think its justifiable. When you can get a Ryzey 5 2600 for $120 that has more than double the performance of an 1100T, it just doesn't make sense

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15 hours ago, Crunchy Dragon said:

That doesn't surprise me at all, Phenom II X6s still pack a decent punch even these days.

you're telling me. trying to find parts for a 1090T-BE system makes my wallet weep

disregard women, fold proteins.

 

systems:

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Main (in rebuild - specs when finished) - Zenith.
R9 3900x 4.25GHz All-Core // X570 Aorus Ultra // 32GB 3200MHz // 3090 FTW3 Ultra // Meshify S2 White/Black (Foam Filter Delete)

 

Folding Station - Polaris. (Temporarily out of use)

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TV / LAN machine - The Hiss.

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Laptop 1 - Valkyrie.

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Partner's Bastard Box - Sundae.

i5-4460 // Gigabyte H97N-WiFi // 16GB 1600MHz // 1080Ti FE // Define Nano S

(Upgrade planned: i5-8600K // Asus Prime Z370-M Plus // 16GB 3200MHz // 1080Ti FE) // Meshify C Mini (Foam Filter Delete)

 

 

 

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1 hour ago, yaboistar said:

you're telling me. trying to find parts for a 1090T-BE system makes my wallet weep

Motherboards are generally worth a lot more than CPUs for older platforms, I've also found.

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2 hours ago, FrostBittn said:

Imo, I don't think its justifiable. When you can get a Ryzey 5 2600 for $120 that has more than double the performance of an 1100T, it just doesn't make sense

Especially with RAM cheap now too.

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You can get a new 1600AF for about $85, that is the same price point and you will get a warranty as well more cores than most used options. You shouldn't have any trouble finding a used B350 board, just ask the owner if they can update the BIOS before sending it, otherwise you might be stuck.

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