Intel BX80571E6500

The E6500 scores 1138 PassMark multi-thread, which is bottom quarter, but it costs as little as USD 34 and carries a 4.6/5 rating from 130 reviews. It's a drop-in LGA 775 upgrade with VT support that owners genuinely like for basic multitasking and Windows 7 XP Mode. Just don't pay more than USD 50 for it.

Let's be real about the numbers. The E6500 runs at 2.93 GHz with a 1066 MHz FSB, 2MB of L2 cache, and a 65W TDP. PassMark puts it at 1138 multi-thread and 1206 single-thread. That's bottom-tier by modern standards, but the single-thread score actually beats the multi-thread score, which tells you this chip is better at snappy everyday tasks than heavy parallel workloads. The 6MB of L3 cache listed in the specs is a bit odd for a Wolfdale chip, but the 2MB L2 is the real story here.

Overclocking headroom is a recurring theme in user reviews. Multiple owners mention pushing this thing past its stock clocks without drama. The 65W TDP means it won't cook your motherboard either. And Virtualization Technology support is the sleeper feature. Several buyers specifically replaced E7200 chips because the E6500 has VT support and the E7200 doesn't. That matters for Windows 7 XP Mode and any VM work.

Against the Dell Xeon E5-2637 V2, the E6500 gets absolutely demolished in raw performance. The Xeon is a server-class chip with far more cores and cache. But it also costs significantly more and won't drop into an LGA 775 board. The AMD Ryzen 5 5500 is in a completely different universe, roughly 15x the PassMark multi-thread score, but you're building a new system around it. The Phenom II X6 HDT90ZFBGRBOX is closer in era but still a six-core chip that beats the E6500 in multi-threaded work. Where the E6500 wins is simplicity: it's a drop-in replacement for ancient Intel systems, and nothing else on this list does that for under USD 50.

Here's where it gets interesting. The E6500 lists between USD 34 and USD 100 across US vendors, a spread of USD 66. That's a massive gap for the same chip. The EUR market is even wilder, ranging from EUR 58 to EUR 183 across four listings. If you're paying the high end of either range, you're getting fleeced. At USD 34, this is a no-brainer for reviving an old LGA 775 system. At USD 100, you're approaching used Ryzen 3 territory and should walk away. The affordability percentile sits at 91, which confirms this is one of the cheapest ways to get a functional dual-core upgrade. Just shop around before you commit.

The Intel Pentium E6500 scores 1138 in PassMark multi-thread and 1206 single-thread. That puts it in the bottom quarter for both, but here's the thing: this chip costs between USD 34 and USD 100 depending on where you look. For a drop-in LGA 775 upgrade, that's a different conversation entirely. We're not comparing this to a Ryzen 5 5500. We're comparing it to whatever ancient Celeron or Pentium 4 is currently wheezing inside an old Dell Optiplex.

Users give it a 4.6 out of 5 across 130 reviews, and the sentiment score sits at 88/100. People aren't buying this for gaming or rendering. They're buying it to keep an old machine alive for basic multitasking, Windows 7 XP Mode, and light productivity. And for that job, it delivers.

If you're building a new system or expecting to run anything beyond basic productivity, skip this. The 1138 PassMark multi-thread score is bottom quarter, and the server score of 29.7/100 is a real letdown. You'd be better off saving for a used Ryzen 3 or even a newer Pentium Gold. Also skip it if you don't already have DDR2 memory lying around, because buying DDR2 in 2024 can cost more than the chip itself. And if you see it listed above USD 50, walk away. The value proposition falls apart fast at the high end of that USD 34 to USD 100 range.

The E6500 is a niche product with a clear job: keep an LGA 775 system alive for basic tasks. The 4.6/5 user rating and 88/100 sentiment score tell you that people who buy it for that purpose are happy. The PassMark scores tell you it won't do anything demanding. If you've got an old Dell or HP with a dead or weak CPU and you just need email, web browsing, and maybe some light VM work, this chip at USD 34 is a solid buy. At USD 100, it's a mistake. The data is clear: this is a value play, not a performance play.