![]() Photoshop CS2 as an image manipulation benchmark. AMD Phenom II X2 565 Black Edition – 3.4 GHz, 45nm, 80WĬlassic – Home Cinema to play x264/MKV video using DXVA.Phenom II X4 840 processor – 3.2 GHz, 45nm, 95W Windows 7 operating system – Ultimate, 64-bit Ideally we would run i5-2400 at the exact same voltage/speeds as the i5-2400S, but we weren’t able to match its odd Turbo Boost multipliers (+8, +7, +3, +1). It’s a simple thing to do, and may be a worthwhile alternative if it gives us similar results. To make things interesting, we will also undervolt the Core i5-2400 to approximately the same core voltage used by the i5-2400S by setting an offset voltage of -0.090V on our Asus P8P67 test board. The i5-2400 undervolted to the same core voltage as the i5-2400S, 1.080V according to CPU-Z. It turned out to be US$93 for AM3, US$119 for LGA1156, and US$139 for LGA1155. In the table above, we added the street price of the chips we’re comparing today with the average price of a compatible motherboard from Newegg (we chose Intel/Asus/Gigabyte/MSI DDR3 microATX and ATX models, omitting the most expensive/extravagant ones). You can’t discuss value without including motherboard cost, which varies from socket to socket. The CPU cost is only one part of the equation. This is a huge advantage compared to the i3-2100T which trails the i3-2100 by 600 MHz in all loads. ![]() This means the i5-2400S will only be slightly behind the i5-2400 in speed much of the time. The i5-2400S gets much larger bumps, 800 MHz for one core, 700 MHz for two cores, and 300 MHz for three cores. The i5-2400 has typical Turbo Boost speeds, overclocking by just 100~300 MHz depending on how many cores are active. The more intriguing part is the i5-2400S, as it is supercharged with very high Turbo Boost frequencies (this couldn’t not be done for the i3-2100T as i3 chips lack Turbo Boost altogether).
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