We have covered Intel’s Broadwell microarchitecture extensively over the last few months. The relatively high-performance and low-power characteristics of Broadwell make it a good fit for a wide range of devices and systems. And as such, Broadwell has found its way into everything fromnotebooks and tablets, to an array of All-In-Ones and Intel’s own NUC ultra-small-form-factor systems.
Broadwell, however, just recently—as in the last few weeks—made it to the DIY and full-sized desktop market. 14nm Broadwell processors weren’t originally destined for the channel, but Intel ultimately changed course and launched a handful of 5th Generation Core processors, the most powerful of which we’ll show you here today, the Core i7-5775C.
The Core i7-5775C is a socketed, LGA processor, just like the 4th Generation Core processors based on Haswell that came before it. In fact, it’ll work in the very same 9-Series chipset motherboards currently available (after a BIOS update). The Core i7-5775C, however, and a lower-end Core i5-5675C, feature a 128MB eDRAM cache and integrated Iris Pro 6200 series graphics which can boost graphics performance significantly.
|# of Cores
|# of Threads
|Processor Base Frequency
|Max Turbo Frequency
|Configurable TDP-down Frequency
|Intel Iris Pro Graphics 6200
|Graphics Base Frequency
|Graphics Max Dynamic Frequency
|Graphics Video Max Memory
The Core i7-5775C’s full specifications are listed above. It is a quad-core CPU that can processes up to 8 threads simultaneously, thanks to Intel’s HyperThreading feature. Other features include the aforementioned Intel Iris Pro 6200 series graphics with eDRAM cache, along with a number of other things carried over from previous generation Intel processors.
In terms of its packaging, the Core i7-5775C looks just like other Intel LGA1150 based processors. The heat-spreader design on the top is the same and the underside understandably has the same pad configuration as previous generation Intel CPUs, since the processor is compatible with existing 9-series platforms. The array of caps and pads in the center of the underside, however, are in a different arrangements than Haswell-based processors.
Roughly half of the Core i7-5775C’s die is dedicated to the graphics engine. The Iris Pro 6200 series graphics engine has 48 execution units, which is more than double what’s offered in Intel’s mainstream integrated graphics solution. The Intel HD 4600 series graphics in a Core i7-4790K, for example, has only 20 EUs. The 4790K also lacks the 128MB eDRAM cache. Note, however, that the eDRAM cache is not pictured here.
The Core i7-5775C has a base clock of 3.3GHz with a max turbo frequency of 3.7GHz, though with SpeedStep the chip will drop down to only 800MHz when idle. It has a TDP of only 65W and over 135MB of cache on-board, 256K of L1 (64K per core), 1MB of L2 cache (256K per core), 6MB of L3, and 128MB of L4, which is the eDRAM cache we’ve mentioned. The Iris Pro 6200 series graphics core has a base clock of 300MHz, that can turbo up to 1.15GHz.