Intel Core i5-3570T vs Intel Core i5-4670T

An efficient low-power chip for its time, but its low base clock and obsolete platform make it irrelevant for modern use.

Best for: The Core i5-3570T should only be considered if you are upgrading an older LGA 1155 system or building a very low-power home server from salvaged parts. Its 45W TDP and quad-core design make it decent for a DIY NAS or a pfSense router. However, its low base clock of 2.3 GHz makes it sluggish for modern web browsing and everyday multitasking. It is completely unsuited for gaming without a dedicated GPU, and even then, the low clock speeds will bottleneck older titles. Do not spend much money on this processor. If you are building a new system, even the lowest-tier modern Intel N100 or Athlon 3000G will offer vastly superior single-thread performance, efficiency, and modern I/O features.

An impressive engineering feat for its time, delivering true quad-core performance in a 45W package, though outdated now.

Best for: The Core i5-4670T is largely obsolete but retains niche value for budget builders repurposing old hardware. If you already own an LGA 1150 motherboard, finding a used 4670T can be a worthwhile, inexpensive upgrade from a dual-core Pentium or i3, offering true quad-core performance for basic gaming and multitasking. It is particularly attractive if you are building a low-power home server or a pfSense router, as the 45 W TDP keeps electricity costs down. However, do not build a new system around this processor. It lacks modern instructions, DDR4 support, and the single-core performance needed for modern AAA gaming. If purchasing, ensure the price is minimal. For any new build, a modern Intel Core i3 or AMD Ryzen 3 will offer significantly better performance and efficiency out of the box.