asus intel extreme tuning utility scores

Our contacts inside of Intel said that the primary benefit of EDRAM is seen in 3D applications when Intel Iris Pro 6200 Graphics are being used. We also set the eDRAM divider at 14, 16, 18, 20 and 22 on our Intel Core i7-5775C processor at otherwise default settings to see how it would perform. Here is a look at the Intel Extreme Tuning Utility with the eDRAM Frequency disabled in the UEFI and properly showing as 0MHz in the utility.

The odd ratios don’t work, but all the even ones do and you can even disable the eDRAM. We’ve been using an ASUS Z97-A motherboard ( $148.99 shipped) with UEFI 2501 and have been tinkering around with eDRAM clock speeds recently. The overclocking gurus inside of Intel has said that 2,200 to 2,250 MHz overclocks have been reached internally, but as with all overclocks no two processors are going to be identical and overclocking may case your part to fail prematurely. The motherboard vendors all don’t support eDRAM ratios in the UEFI just yet, but tier 1 board makers like ASUS and Gigabyte are leading the way and offer eDRAM ratio adjustment. Overclocking of the eDRAM is possible, but this is the first time anyone has been able to overclock eDRAM. The secondary use of the eDRAM ratio is for overclocking. It should be noted that eDRAM ratios are only available in even numbers. The chart below has a few examples of the ratios you can use to stay as close to 1800 MHz as possible. To ensure eDRAM stability it is best to keep the eDRAM frequency around 1800 MHz and you can use various ratios to do this.

After the review was posted our friends at ASUS gave us the opportunity to try out a new beta UEFI revision that has the option of changing the eDRAM ratio! Intel allowed the eDRAM ratio to be unlocked on the Intel Core i7-5775C and Core i5-5675C processors for under-clocking purposes! This is because when you overclock by increasing the base clock (BCLK) you actually overclock the memory as well. The eDRAM cache in the 4 th and 5 th generation Intel Core Processors is a 16 way cache which can cache data from both the CPU and GPU. When we reviewed the Intel Core i7-5775C ‘Broadwell’ processor with Intel Iris Pro 6200 graphics we completed the review with the 128MB of eDRAM locked at 1800MHz.

Asus intel extreme tuning utility scores