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1. #I5 6600K CINEBENCH SERIAL#
2. #I5 6600K CINEBENCH UPDATE#
3. #I5 6600K CINEBENCH CODE#
4. #I5 6600K CINEBENCH SERIES#

As a result, the two lines are more or less equal in terms of absolute time, as we would expect. But it is worth remembering that these tests are against a memory clock of 2133 MHz, whereas the others are at 1866 MHz. It seems that the latency in this region is a lot higher than the others, showing nearly 100 clocks as we move up to 1GB.

#I5 6600K CINEBENCH UPDATE#

So an update for Skylake, as shown in both the DDR4 and DDR3 results, is that the 元 caching algorithms or hardware resources have been upgraded.Īt this point I would also compare the DDR3 to DDR4 results on Skylake above 16MB. If you have a more efficient caching and pre-fetch algorithm here, then the latency ‘at 8MB’ will be lower. Normally in this test, despite all of the CPUs having 8MB of 元 cache, the 8MB test has to spill out to main memory because some of the cache is already filled. Between 4MB and 8MB, the cache latency still seems to be substantially lower than that of the previous generations. If we ignore Broadwell and its eDRAM, the purple line, especially from 16MB to 128MB, both of the lines for Skylake stay at the low latencies until 4MB. From a pure cache standpoint, here is how each of the processors performed: For Skylake we also run at DDR4-2133 C15 as a default speed. As each platform uses DDR3, we set the memory across each to DDR3-1866 with a CAS latency of 9. Intel Desktop Processor Cache Comparisonįor this test we took Intel’s most recent high-end i7 processors from the last five generations and set them to 3.0 GHz and with HyperThreading disabled. As Broadwell to Skylake is an architecture change with what should be large updates, we should expect some good gains. In most cases, 5-10% with a node change and 5-25% with an architecture change with the most recent large jumps being with the Core architecture and the Sandy Bridge architectures, ushering in new waves of super-fast computational power. All the meanwhile there is an external focus on making sure power consumption is low and the frequency of the processor can scale depending on what the target device actually is.įor the most part, Intel has successfully increased IPC every generation of processor. Moving has never been more complicated, and the ability for a processor to hide latency, pre-prepare data by predicting future events or keeping hold of previous events for potential future use is all part of the plan. The processor has to take the instruction, decode the instruction, gather the data (depends on where the data is), perform work on the data, then decide what to do with the result. Ideally every instruction a CPU gets should be read, executed and finished in one cycle, however that is never the case. The principles behind extracting IPC are quite complex as one might imagine. But the truth is that having a few fast cores helps more than several thousand super slow cores.

#I5 6600K CINEBENCH SERIAL#

This is referred to as the serial part of the software, and is the basis for many early programming classes – getting the software to compile and complete is more important than speed.

#I5 6600K CINEBENCH CODE#

While the concept of having devices with multiple cores has allowed many programs to run at once, purely parallel compute such as graphics and most things to run faster, we are all still limited by the fact that a lot of software is still relying on one line of code after another. The following explanation of IPC has been previously used in our Broadwell review.īeing able to do more with less, in the processor space, allows both the task to be completed quicker and often for less power. As stated, in this review we focus on the Core i5 6600K.Comparing IPC on Skylake: Memory Latency and CPU Benchmarks Skylake is the code name used by Intel for the 14nm processor micro-architecture under development and is the successor to the Haswell and Broadwell architecture. For the gaming community two processors are the most important.įour CPU cores with Hyper-Threading, 4.0GHz frequency, 4.20GHz maximum Turbo Boost frequency, 8MB last-level cache, dual-channel DDR3/DDR4 memory controller with 1600MHz or 2133MHz support, Intel HD Graphics 530-series integrated graphics core, LGA1151 packagingįour cores, 3.50GHz frequency, 3.90GHz maximum Turbo Boost frequency, 6MB last-level cache, dual-channel DDR3/DDR4 memory controller with 1600MHz or 2133MHz support, Intel HD Graphics 530-series integrated graphics core, LGA1151 packaging

#I5 6600K CINEBENCH SERIES#

The Z170 and H170 series motherboards will all be offered with DDR4 though. The quad core CPU has 8 MB 元 cache, and an integrated memory controller that supports both DDR4 and DDR3 memory.