Intel has announced that it has completed Meltdown, Spectre, and patch repairs for all CPU processors over the past five years. New products are also being redesigned and directly immune to new products.
This loophole has attracted a lot of attention. Except that the impact is too big, another important factor is that after patching, performance will decline to varying degrees.
Although Intel has repeatedly emphasized that the overall impact is not significant, but after all, Intel has been squeezing toothpaste in the past few years. It would have been impossible to improve the performance. A dozen patches have gone backwards and it is hard to accept.
AnandTech recently used a seven-generation Core Kaby Lake NUC mini-machine, which specifically tested the performance before and after patching.
The mini model is 'NUC7i7BNH ', equipped with a Core i7-7567U processor , Dual-core four-thread, clocked at 3.5-4.0GHz, integrated Core Graphics Iris Plus 650, thermal design power 28W.
At the same time it also configured Crucial Ballistix Sport LT DDR4-2133 16GB x 2 memory, A-DATA SX8000NP 128GB SSD (M.2/NVMe/PCI-E 3.0/Micron 3D flash memory).
The test is divided into three types of model comparison, the first is unpatched, Windows 10 system version 16299.125, motherboard BIOS version v0054, at this time two loopholes exist.
Secondly, only the system patch (Patch OS) is used. Windows 10 is upgraded to 16299.309, and the BIOS is upgraded to v0060. At this time, it has been filled with a fuse hole, but the ghost hole is still there.
Finally, the system and main board patches are patched (Patch OS + uCode). The system version of Windows 10 is 16299.214, and the BIOS version is v0061 (upgraded to v0062 when tested).
