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Intel Core 2 Quad Q9505 4-core LGA775

★★★★★ 4.8 (8)

The 2.83 GHz clock speed and 6MB of L2 cache provide a tangible boost for legacy LGA775 systems over older dual-core chips. Its 4-core, 4-thread design on a mature 45nm process offers a drop-in upgrade path for aging desktops at a minimal cost. This processor is best for users maintaining vintage Windows 7-era PCs for basic multitasking or retro gaming, not modern workloads.

Cores 4
Threads 4
L3 Cache 6 MB
Socket LGA775
Intel Core 2 Quad Q9505 4-core LGA775 cpu
23 Overall Score
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Snapshot

The 30-Second Version

The Core 2 Quad Q9505 is a 2009-era quad-core that scores 22.5 out of 100 overall. It's cheap at around $50 USD and works fine for keeping ancient LGA775 systems alive. For anything modern, it's too slow, too power-hungry, and too dead-end to recommend.

Pros & Cons

Pros

  • Dirt cheap at around $50 USD 85th
  • Four real cores, not hyperthreaded fakery
  • Drops into any LGA775 board without drama
  • 6MB L2 cache helps older games run smoother

Cons

  • Single-thread performance is genuinely bad
  • 95W TDP for this little performance is rough
  • No upgrade path, LGA775 is a dead socket
  • 1 month warranty is basically a handshake

What owners think

The Word on the Street

4.8/5 (8 reviews)
👍 Several buyers report the chip arrived quickly, installed without issues, and ran at the correct clock speed.
👍 A few owners mention it gave their older gaming PC a noticeable boost compared to their previous dual-core chip.
🤔 Some reviewers note the shipping time from China can take a while, though packaging is generally solid.

The proof

Performance

The PassMark numbers tell the story. 2177 multi-thread and 1187 single-thread puts this chip in the 27th and 24th percentiles respectively. That's not just slow, it's 'your phone probably benches higher' territory. The 6MB of L2 cache helps a little with older games and basic multitasking, but the 95W TDP means you're burning real power for very little return. Efficiency lands in the 17th percentile, which is a polite way of saying this thing is a space heater that occasionally does math. For retro builds or basic office work it's fine. For anything modern, it's a slideshow.

Performance Percentiles

AI 23.6
Feature 20.6
Platform 17.4
Efficiency 16.5
Multi Thread 26.6
Social Proof 58
Affordability 84.7
Single Thread 23.6

Specifications

Full Specifications

Processor

Brand Intel
Series Core 2 Quad
Model Q9505
Class desktop

Cores & Clocks

Cores 4
Threads 4
Base Clock 2833

Cache

L2 Cache 6
L3 Cache 6 MB

Performance

PassMark Multi 2177
PassMark Single 1187

Platform & Power

Socket LGA775

vs Competition

Stacked against the AMD Ryzen 5 7600, this thing looks like it belongs in a museum. The Ryzen 5 absolutely obliterates it in every metric we track. Even the Dell Xeon E5-2637 V2, itself an old server chip, runs circles around the Q9505 in multi-threaded workloads. The PC Server and Parts E5-2697 v2-cr is another budget option that offers dramatically more cores and threads for not much more money, assuming you have a board that supports it. The be quiet! and Thermal Grizzly entries in our comparison list are cooling products, not CPUs, so they're not direct competitors, but they do highlight that modern builds need modern cooling, something this old Intel chip never really worried about.

Spec Intel Core 2 Quad Q9505 AMD Ryzen 9 7950X3D SMC EPYC 9555P MICRO CENTER 9950X3DMAGX870ETMKWF Empowered PC Ryzen 7 5700X PC Server and Parts E5-2697 v2-cr
Cores 4 16 64 - - -
Threads 4 32 128 - - -
Boost Clock Mhz - 5700 4400 - - -
L3 Cache Mb 6 128 256 - - -
Tdp W - 120 360 - - -
Socket LGA775 AM5 AMD Socket SP5 - - -
Integrated Graphics - AMD Radeon Graphics - - - -
Compare Compare Compare Compare Compare
Product AIFeaturePlatformEfficiencyMulti ThreadSocial ProofAffordabilitySingle Thread
Intel Core 2 Quad Q9505 23.620.617.416.526.65884.723.6
AMD Ryzen 9 7950X3D Compare 9698.692.49795.784.414.592.9
SMC EPYC 9555P Compare 99.377.296.889.699.400.485.9
MICRO CENTER 9950X3DMAGX870ETMKWF Compare 85.820.617.466.597.106.398.4
Empowered PC Ryzen 7 5700X Compare 63.720.617.439.681.9039.985.7
PC Server and Parts E5-2697 v2-cr Compare 5020.617.429.267.8087.345

Price

Value & Pricing

At $50 USD it's hard to call this a rip-off. You're buying a working CPU for less than the cost of a decent dinner for two. The affordability score of 45.6 out of 100 reflects that it's cheap, but you're also buying into a platform with zero future. The 1 month warranty is a red flag though. If this chip dies on day 31, you're out fifty bucks and back to square one. For keeping an old machine alive, the math works. For anything else, save your money.

From ¥13,673 1 offer across 1 retailer
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Price History

¥13,000 ¥13,500 ¥14,000 ¥14,500 ¥15,000 Jun 13Nov 13 ¥13,673

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Overview

The Intel Core 2 Quad Q9505 is a fossil from 2009 that still shows up on Amazon because someone, somewhere, has an LGA775 board they refuse to let die. Four cores, 2.83GHz, 6MB of L2 cache. It was a solid mid-range chip back when Obama was in his first term. Today it's a budget stopgap for keeping ancient hardware alive, not a serious performance purchase.

We scored it 22.5 out of 100 overall. That sounds brutal, and it is. But context matters. If you're nursing along an old Dell or HP office box and just need a working CPU for $50, this does the job. Just don't expect it to compete with anything made in the last decade.

Common Questions

Q: Will this work in my LGA775 motherboard?

Yes, as long as your board supports 1333MHz front-side bus speeds and can handle a 95W TDP. Check your motherboard's CPU support list before buying.

Q: Can this run modern games?

Not really. With a 1187 single-thread PassMark score, it'll struggle with anything released in the last several years. It's fine for older titles and basic esports games at low settings.

Q: Is this a good upgrade from a Core 2 Duo?

For basic multitasking and older games, yes. Going from two cores to four helps with background tasks and some older titles. Just don't expect a night-and-day difference in single-threaded performance.

Who Should Skip This

Skip this if you're building a new PC, period. Also skip it if you need any kind of modern performance, video editing, streaming, or gaming beyond retro titles. If your board supports a Xeon mod or a faster Core 2 Quad like the Q9650, spend the extra few bucks there instead. And if you're expecting any kind of warranty support, the 1 month coverage should scare you off.

Verdict

Buy this if you have an LGA775 motherboard with a dead or dying CPU and you just need the machine to boot again. It's a cheap, reliable drop-in replacement for old office PCs, basic web browsing, and retro gaming rigs. Anyone building a new system should pretend this product doesn't exist. It's not a value play, it's a life support purchase.

Usage Scores

Overall (22.7)AI/LLM (17.2)Budget (45.6)Gaming (20.4)Server (16.8)Efficiency (18.9)Productivity (23.6)
  • Overall22.7
  • AI/LLM17.2
  • Budget45.6
  • Gaming20.4
  • Server16.8
  • Efficiency18.9
  • Productivity23.6

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