Page 1: Reviewed: Intel Core i7-6700K and Core i5-6600K (Skylake)
It feels like we’ve been talking about Intel’s newest Skylake CPU for years. Well the time is here and today we’re taking the time to see just how it performs with Intels new Z170 (Sunrise Point) chipset. With the new Intel Core i7-6700K and Core i5-6600K in hand, we’ll tell you today what’s going on with the latest platform from Intel.
With both the Intel Core i7-6700K and lower end Core i5-6600K in hand today we’ll be testing both processors against a number of other offerings that we’ve got on hand. Outside of the testing, we’ll also take the time to talk about the architecture and what makes the latest Skylake CPU tick while also covering what the new Z170 chipset brings with it.
We’ll know what Skylake is all about with the i7-6700K and i5 6600K:
Highlights of Intel’s new Skylake platform consists of:
- The new 1151 socket which isn’t backwards compatible
- DDR4 support
- A significantly reamed and better tailed Chipset (Z170)
- Several architectural changes in the CPU due to its “Tock” update from Intel’s tick-tock model, ie an architecture update
Intel sees the new line up of K-CPUs as the best option for gamers. Therefore we’re seeing it show up at Gamescom in Cologne. Being a K SKU CPU means that overclocking is also a big part of the processors with Intel highlighting “new” overclocking features. While looked at today, a more detail look will come in the next few weeks.
Below is a detailed look comparing a number of Intel CPUs:
|Core i7-6700K||Core i5-6600K||Core i7-5775C||Core i5-5675C||Core i7-4790K||Core i7-4770K|
|Manufacturing Process Technology||14 nm||14 nm||14 nm||14 nm||22 nm||22nm|
|Memory||2 Channel DDR4 / DDR3L||2 Channel
DDR4 / DDR3L
|Cores / Threads||4/8||4/4||4/8||4/4||4/8||4/8|
|L3 cache size||8 MB||6 MB||6 MB||4 MB||8 MB||8 MB|
|Graphics Core||HD Graphics 530||HD Graphics 530||Iris Pro Graphics 6200||Iris Pro Graphics 6200||HD Graphics 4600||HD Graphics 4600|
|GPU frequency||1.15 GHz||1.15 GHz||1.15 GHz||1.10 GHz||1.25 GHz||1.25 GHz|
|Base Frequency||4.0 GHz||3.5GHz||3.3GHz||3.1GHz||4.0 GHz||3.5GHz|
|max. Turbo (1 Core)||4.2 GHz||3.9 GHz||3.7 GHz||3.6GHz||4.4 GHz||3.9 GHz|
|max. Turbo (4 Core)||4.1 GHz||3.6GHz||3.6GHz||3.5GHz||4.2 GHz||3.6GHz|
|TDP||91 W||91 W||65 W||65 W||88 W||84 W|
|PCIe Lanes||16x PCIe 3.0||16x PCIe 3.0||16x PCIe 3.0||16x PCIe 3.0||16x PCIe 3.0||16x PCIe 3.0|
|Price||$350||$249.99||401 Euro||285 Euro||$339.99||299 Euro|
Looking at the clock speeds we can see that the new i7-6700k comes in 200MHz lower when compared to the i7 4790K. What really grabs our attention is the increased TDP when compared to Haswell. Most would’ve thought the move to 14nm would bring with it a drop in power, not an increase. Intel has upgraded the Graphics Core and moved to a new naming system in the HD Graphics 530. We’ll dive into the new Intel HD Graphics 530 in a separate article.
The distinction between the Core i7-6500K and Core i5-6600K remains clear. The higher-end option brings with it Hyper-Threading and thus brings with it four virtual cores, also seen is a larger 8MB L3 cache (verse 6MB on the i5) and a slightly higher clock speed.