Core i3-2120 vs Core i3-2105

Gaming speed, cores and clocks

On our gaming index the Core i3-2120 scores 12 and the Core i3-2105 scores 11, about 9% faster for gaming. That gap is small and mostly shows up at 1080p with a very fast graphics card.

The Core i3-2120 has 2 cores and 4 threads, and the Core i3-2105 has 2 cores and 4 threads. Core counts are the same, so cache size and clock speed decide the difference. Boost clocks are 3.3 GHz and 3.1 GHz.

Platform, power and price

Both chips use the LGA1155 socket, so they fit the same motherboards. You can swap one for the other without changing the board.

Rated power is 65 W for the first and 65 W for the second. That is close enough that cooling needs will be similar.

At launch the Core i3-2120 cost $138 and the Core i3-2105 $134, which gives 8.7 and 8.2 points of gaming performance per $100. Today's prices will differ.

Which graphics cards each one can feed, and which to buy

At 1080p the Core i3-2120 can feed a card up to the GeForce GTX 980 before it holds the card back by more than 10 percent. The Core i3-2105 reaches the GeForce GTX 1650 Super. Both chips are in the same range for graphics card pairing.

Choose the Core i3-2120 if you want the faster gaming chip and the same or more cores. Choose the Core i3-2105 if you would rather spend the difference on a graphics card, which does more for frame rates in most games.