Leaderboard

Good stuff, thanks for sharing! In line with that topic I thought I should share some stuff about power consumption, too. Recently I started fitting a Toshiba Satellite C870 for use - also an Ivy Bridge laptop. That model though has the power feed to the CPU capped at 35W in the BIOS and behaves really unstable with a 45W processor. So I played with 'turbostat' to see what frequencies result in what power consumption, which might be interesting for 2570p users, too (I actually ran the tests on the 2570p and on the C870 with identical results, except for the full boost speeds on the C870 which were unstable). Here are all the results - testing a Core-i5 2320M and Core-i7 3720QM at single-thread (1) stress, multi-threaded (8) stress and multi-threaded + Furmark. Also note the tests running at 2900MHz and 3200MHz mimicking a 3632QM. https://gist.github.com/batyanko/5fe88f89036f14483e84a7c6fe390829 Here are also results for a 3632QM, kindly shared by user haagch from phoronix.com forums: https://gist.github.com/ChristophHaag/b019a10c255f05046ffa52efc63b2b60 Some of my observations: - It seems that the 3720QM is not only able to run at 3632QM speeds when needed, but is also more efficient by ~4W. So there seems no good reason for choosing 3612QM or 3632QM over a 45W model. - GPU / IGP can be a huge power hog if stressed well with Furmark or a 3D game. - The i5-3230M could have easily been marketed as 30W, I totally couldn't push it over that mark. In fact, it cannot even do 16W unless you stress the GPU / IGP simultaneously. Note: CPU and Intel HD 400 GPU / IGP clock setting done on Kubuntu 17.10 using following commands: # Set CPU to 81% (3000MHz), base non-turbo clocks being not 99% but somewhere around 70% echo "81" | sudo tee /sys/devices/system/cpu/intel_pstate/max_perf_pct # Set GPU clock to 350MHz echo 350 | sudo tee /sys/class/drm/card0/gt_max_freq_mhz /sys/class/drm/card0/gt_boost_freq_mhz