
If you’ve read our primer on Intel’s new 8th generation family of processors codenamed Coffee Lake, you’ll have an idea of how it’s Intel’s rather rushed, but still effective stab at competing with AMD’s Ryzen processors, which have so far decimated everything in Intel repertoire in the price/performance stakes. We had noted how the Coffee Lake CPUs have managed to bump up the core count and close the gap with their AMD counterparts on the multi-core performance side, while also improving the lead in single-core performance. All this while being competitive with the Ryzen processors even in the pricing department. The only chink in the Coffee Lake’s armour is the fact that these CPUs need a brand new 300-series motherboard and therefore inaccessible to those with the first batch of 8th generation Kabylake processors; unless, of course, they are okay with ditching their relatively new and expensive 200-series motherboards.
The main question now is how well the Coffee Lake CPUs perform vis-à-vis their Ryzen counterparts. To this effect, you’ll find a handy comparison charts juxtaposing the competing processors according to what’s in the spec sheet. However, specifications only tell a part of the story. The real deal are the benchmarks, so what follows is a basic spec comparison supplemented by an overview of various benchmarks to show how the Coffee Lake processors fare in real world conditions.
Core i7 vs Ryzen 7
The Core i7-8700K is the star of the show and it blows the lid off the competition, namely the Ryzen 7 1700X. Let’s not forget that MRP-wise, the AMD processor is actually dearer at $399 compared to the Intel’s $359 pricing. Having said that, since the AMD CPU has been out for a while, it can be purchased for as low as $100 less over the MRP, with the rather rushed Intel processors not only facing chronic shortages, but some of the stock is also being binned by sellers and sold at a premium of several hundred dollars. Here’s a quick look at the specs.
Intel Core i7-8700K |
Intel Core i7-8700 |
Ryzen 7 1700X |
Ryzen 7 1700 |
|
Socket | LGA 1151 | LGA 1151 | PGA 1311 | PGA 1311 |
Cores/Threads | 6 / 12 | 6 / 12 | 8 / 16 | 8 / 16 |
Base Frequency | 3.7 GHz | 3.2 GHz | 3.4 GHz | 3.0 GHz |
Boost Frequency | 4.7 GHz | 4.6 GHz | 3.8 GHz | 3.7 GHz |
Memory Speed | DDR4-2666 | DDR4-2666 | DDR4-1866 to DDR4-2667 | DDR4-1866 to DDR4-2667 |
Memory Controller | Dual-Channel | Dual-Channel | Dual-Channel | Dual-Channel |
Unlocked Multiplier | Yes | No | Yes | Yes |
PCIe Lanes | x16 Gen3 | x16 Gen3 | x16 Gen3 | x16 Gen3 |
Integrated Graphics | Intel UHD Graphics 630 (up to 1,200MHz) | Intel UHD Graphics 630 (up to 1,200MHz) | No | No |
Cache (L2+L3) | 13.5MB | 13.5MB | 20MB | 20MB |
Architecture | Coffee Lake | Coffee Lake | Zen | Zen |
Process | 14nm++ | 14nm++ | 14nm GloFo | 14nm GloFo |
TDP | 95W | 65W | 95W | 65W |
Price (per 1K Unit) |
$359 | $303 | $399 | $329 |
Core i5 vs Ryzen 5
The mainstream Core i5 processors have two main entrants in the Coffee Lake series with the fully unlocked Core i5-8600K and i5-8400, which cannot be overclocked. However, the $182 Core i5-8400 makes a great case for mainstream gamers due to its stellar performance. That’s some considerable savings compared to the $257 premium Intel demands for overclocking with the i5-8600K. When compared to the similarly priced AMD Ryzen 5 1600X, the Core i5-8600K delivers extra boost clock with similar base clock frequencies, which can be further leveraged with Intel’s superior overclockability compared to the AMD Ryzen counterparts. However, the Ryzens have a cache advantage, and also better multi-tasking (at least on paper) due to six cores and twelve threads, compared to Intel’s strategy of keeping hyperthreading restricted to the higher end Core i7 series of processors.
Intel Core i5-8600K |
Intel Core i5-8400 |
Ryzen 5 1600X |
Ryzen 5 1500X |
|
Socket | LGA 1151 | LGA 1151 | PGA 1331 | PGA 1131 |
Cores/Threads | 6 / 6 | 6 / 6 | 6 / 12 | 4 / 8 |
Base Frequency | 3.6 GHz | 2.8 GHz | 3.6 GHz | 3.5 GHz |
Boost Frequency | 4.3 GHz | 4.0 GHz | 4.0 GHz | 3.7 GHz |
Memory Speed | DDR4-2666 | DDR4-2666 | DDR4-1866 to DDR4-2667 | DDR4-1866 to DDR4-2667 |
Memory Controller | Dual-Channel | Dual-Channel | Dual-Channel | Dual-Channel |
Unlocked Multiplier | Yes | No | Yes | Yes |
PCIe Lanes | x16 Gen3 | x16 Gen3 | x16 Gen3 | x16 Gen3 |
Integrated Graphics | Intel UHD Graphics 630 (up to 1,150MHz) | Intel UHD Graphics 630 (up to 1,150MHz) | No | No |
Cache (L2+L3) | 10.5MB | 10.5MB | 16MB | 16MB |
Architecture | Coffee Lake | Coffee Lake | Zen | Zen |
Process | 14nm++ | 14nm++ | 14nm GloFo | 14nm GloFo |
TDP | 95W | 65W | 95W | 65W |
Price (per 1K Unit) |
$257 | $182 | $249 | $190 |
Core i3 vs Ryzen 5 and 3
Intel’s decision to add two extra cores to the entry-level Core i3 processors in the Coffee Lake series makes them competitive against the Ryzen 3 as well as the lower end Ryzen 5 CPUs. Despite a lack of CPU frequency scaling, the 8th generation Core i3 line-up still manages to outperform the Ryzen 3 and 5 processors on the paper with raw base clocks that are several hundred megahertz higher than even the boost clocks of their AMD counterparts. What’s more, the Core i3-8350K offers Intel’s legendary overclockability at nearly the same MRP as the Ryzen 5 1400. However, Intel’s decision to restrict the Coffee Lake Core i3 processors to DDR4-2400MHz as opposed to the 2667MHz speeds of the higher end Core i5 and i7 CPUs as well as their Ryzen 3 and 5 counterparts.
Intel Core i3-8350K |
Intel Core i3-8100 |
Ryzen 5 1400 |
Ryzen 3 1300X |
|
Socket | LGA 1151 | LGA 1151 | PGA 1331 | PGA 1131 |
Cores/Threads | 4 / 4 | 4 / 4 | 4 / 8 | 4 / 4 |
Base Frequency | 4.0 GHz | 3.6 GHz | 3.2 GHz | 3.4 GHz |
Boost Frequency | N/A | N/A | 3.4 GHz | 3.6 GHz |
Memory Speed | DDR4-2400 | DDR4-2400 | DDR4-1866 to DDR4-2667 | DDR4-1866 to DDR4-2667 |
Memory Controller | Dual-Channel | Dual-Channel | Dual-Channel | Dual-Channel |
Unlocked Multiplier | Yes | No | Yes | Yes |
PCIe Lanes | x16 Gen3 | x16 Gen 3 | x16 Gen3 | x16 Gen3 |
Integrated Graphics | Intel UHD Graphics 630 (up to 1,150MHz) | Intel UHD Graphics 630 (up to 1,150MHz) | No | No |
Cache (L2+L3) | 9MB | 7MB | 10MB | 10MB |
Architecture | Coffee Lake | Coffee Lake | Zen | Zen |
Process | 14nm++ | 14nm++ | 14nm GloFo | 14nm GloFo |
TDP | 91W | 65W | 65W | 65W |
Price (per 1K Unit) |
$168 | $117 | $169 | $130 |
Synthetic Benchmarks
Not surprisingly, the synthetic benchmarks support what’s evident in the spec sheet, with the both the Core i5-8600K and i7-8700K wiping the floor with the more expensive Ryzen 7 1800X, let alone the lower end Ryzen 7 and Ryzen 5 processors that bear the same MRP. In short, when the supply normalises and the prices come down, the Coffee Lake processors will make for an even more compelling choices even for those on a budget
The Blender 3D rendering and Handbrake video editing benchmarks also underscore the gap Intel is closing despite the Ryzen 1800X packing two extra cores. Needless to say, the Ryzen 1800X still bests its lower priced Coffee Lake counterparts, but it’s great to see Intel closing the multi-core performance gap in the productivity applications, especially when compared to the lower end Ryzen 7 and 5 CPUs that are in the similar price bracket.
Gaming Benchmarks
However, the Intel Coffee Lake Core i7-8700K remains the performance king in gaming. AMD still has some way to go before it can upset the reigning champion in single core and gaming performance. The Coffee Lake processors bump up the boost clock frequencies even further, thereby improving single core performance while still staying within the thermal ceiling for multi-core applications thanks to lower base clocks. The result is evident in the gaming benchmarks, where it bests even its Kaby Lake counterparts when it comes to gaming. Even the more expensive higher end Ryzen 7 processors cannot keep up. However, this comes as no surprise.
[Benchmark and comparison sources: Toms Hardware, Gizmodo, and ArsTechnica]