Intel Core 2 Quad Q6700 4-core LGA 775

The Core 2 Quad Q6700 is a 2007 quad-core that still works but shows its age everywhere. Best score is budget at 59.3, and that's mostly because used prices are rock bottom. Only worth grabbing if you're building a retro rig or testing an old LGA 775 board.

The Q6700 sits at the 65th percentile for single thread and 55th for multi thread in our database. That sounds okay until you remember the comparison pool includes a lot of very old silicon. The 2.66GHz clock and 1066MHz front side bus were respectable in the Core 2 era, but modern workloads will choke on this thing. The 105W TDP is also rough for what you get. Efficiency lands at the 48th percentile, which means it drinks power like a much newer chip while delivering a fraction of the output. The 8MB L2 cache is the one spec that still sounds impressive, and it does help with older games and basic multitasking. But don't expect miracles.

Stacking this against the Ryzen 7 9800X3D or the EPYC 9555P is almost comical. Those chips are in a different universe. The 9800X3D will run circles around the Q6700 in every possible metric, and the EPYC is a server monster with dozens of cores. Even the Dell Inspiron 7700, which is a whole prebuilt system, makes more sense for most people. The only reason to pick the Q6700 over any of these is if you're restoring a period-correct Windows XP gaming rig or you found a free motherboard and just need a chip to test it. The Core i9 BX80673I99940X is also ancient by modern standards, but it at least has more cores and threads to throw at the problem.

There's no listed price in USD, but the one Japanese listing sits at 31,104 JPY. On the used market in the States, these go for pocket change. If you can grab one for under twenty bucks and you already have a working LGA 775 board, it's a fun project. But spending real money on this in 2025 is a mistake. The affordability score of 64th percentile reflects the low used prices, not the actual value proposition. You're buying nostalgia, not performance.

The Intel Core 2 Quad Q6700 is a relic from 2007 that somehow still has a pulse on the used market. Four cores, 8MB of L2 cache, and a 2.66GHz clock on the ancient LGA 775 socket. It was a beast in its day. That day was roughly seventeen years ago.

We're looking at this through a 2025 lens, and the scores tell the story. Budget use gets a 59.3, productivity scrapes by at 48.4, and the overall score lands at 44.4. This chip is for tinkerers, retro builders, and people trying to squeeze life out of an old Dell. Not for anyone who needs actual performance.

Skip this if you need a daily driver for anything beyond word processing and light web use. The lack of modern instruction sets means some current software won't even install. If you want a cheap used CPU for a budget build, grab a used Ryzen 5 or an 8th gen Intel i5 instead. You'll spend a bit more but get exponentially better performance and efficiency.

The Q6700 is for retro enthusiasts and people who need a cheap chip to test an old Socket 775 board. That's it. If you're building a machine for daily use, even for basic web browsing and email, look at a used Ryzen or an older i5 instead. The Q6700 will technically run a modern OS, but it won't be a good time. Buy it for the nostalgia, not the performance.