Since Coffee Lake-S is becoming more and more a digital launch and the hardware is not really available in quantities, we could actually take our time. The new Intel Core i5-8400K, like the rest of the family, is still a real Fata Morgana, which is supposed to disturb AMD's Ryzen even without real physical availability. Even if we repeat ourselves, this product launch, which is becoming more and more of an announcement, is not something that really helps customers and ultimately harms retailers.
We are already very detailed in our detailed launch article "More Cores for the People: Coffee Lake-S with Intel Core i7-8700K and Core i7 8700 in Test" and the follow-up "Intel Core i5-8600K: Six Cores for the Middle Class" new chipset and also a part of the new CPUs, so we want to save the bored redundancy at this point. If you would like to read it again, you are welcome to click on the links above.
As an alternative, AMD still has matching Ryzen CPUs in the race, although a price adjustment makes many of them seem even more attractive. After all, you don't have to invest in a new platform with every new refresh and also for the direct Zen successor, the socket should remain compatible according to AMD. Good boards, which are also suitable for overclocking, can even be obtained for well under 100 euros, so that an AMD total system could already be a lure in terms of price.
We therefore provide the Core i5-8400 with the price-matching or more attractive Ryzen 5 1600X, 1500X and 1400, which we have partly overclocked, which unfortunately is not possible with the Core i5-8400. However, since the AMD CPUs offer it consistently at no extra charge, this is only fair.
The specifications
The TDP specifies Intel for the 65-watt Core i5-8400, but it remains to be seen what the motherboard manufacturers will make of it and whether all-core turbo clock speeds will be enabled again this time, which will be significantly higher than the TDP class. We will come back to this later in the power consumption measurements.
Model | Base clock | Single-core turbo | All-core turbo* | Cores / Threads | TDP-class destroyer | L3 cache | Memory | RCP (per 1000) |
---|---|---|---|---|---|---|---|---|
i7-8700K | 3.7 GHz | 4.7 GHz | 4.3 GHz | 6/12 | 95 watts | 12 MiB | DDR4-2666 | 359 USD |
i7-8700 | 3.2 GHz | 4.6 GHz | 4.3 GHz | 6/12 | 65 watts | 12 MiB | DDR4-2666 | 303 USD |
i5-8600K | 3.6 GHz | 4.3 GHz | 4.1 GHz | 6/6 | 95 watts | 9 MiB | DDR4-2666 | 257 USD |
i5-8400 | 2.8 GHz | 4.0 GHz | 3.8 GHz | 6/6 | 65 watts | 9 MiB | DDR4-2666 | 182 USD |
i3-8350K | 4.0 GHz | – | – | 4/4 | 91 watts | 8 MiB | DDR4-2400 | 168 USD |
i3-8100 | 3.6 GHz | – | – | 4/4 | 65 watts | 6 MiB | DDR4-2400 | 117 USD |
The MSI Z370 Gaming Pro Carbon AC and our test setup
MSI continues the Z-series of Gaming Pro motherboards chronologically and again gives the current offshoot similar features to the previous models. In the end, the price positioning on the market should also be similar. The exact board details and specifications can be found on the manufacturer's side if you are interested.
We have already described the new test methodology in the basic article "How we test graphics cards, as of February 2017" in great detail and so we now only refer to this detailed description for the sake of simplicity. So if you want to read everything again, you are welcome to do so.
In this case, only the hardware configuration with CPU, RAM, motherboard, as well as the new cooling is different, so that the summary in table form quickly gives a brief overview of the system used here and today:
Test systems and measuring rooms | |
---|---|
Hardware: |
Intel Socket 1151 (Z370): Intel Core Core i5-8600K, Core i5-8400 MSI Z370 Gaming Pro Carbon AC 2x 8GB G.Skill TridentZ DDR4-3200-2666 MHzAMD Socket AM4 Workstation AMD Ryzen 5 1600X, 1500X, 1400 MSI X370 Tomahawk 4x 8 GB G.Skill TridentZ DDR4-3200 Intel Socket 1151 (Z270): All systems: 1x 1 TByte Toshiba OCZ RD400 (M.2, System SSD) |
Cooling: |
Alphacool Ice Age 2000 Chiller Alphacool Ice Block XPX Thermal Grizzly Kryonaut (for cooler change) |
Monitor: | Eizo EV3237-BK |
Housing: |
Lian Li PC-T70 with expansion kit and modifications Modes: Open Benchtable, Closed Case |
Power consumption: |
non-contact DC measurement on the PCIe slot (Riser-Card) non-contact DC measurement on the external PCIe power supply direct voltage measurement at the shunts, the respective feeders and the power supply Reading out the motherboard sensors 2x Rohde & Schwarz HMO 3054, 500 MHz multi-channel oscillograph with memory function 4x Rohde & Schwarz HZO50, current togor adapter (1 mA to 30 A, 100 KHz, DC) 4x Rohde & Schwarz HZ355, touch divider (10:1, 500 MHz) 1x Rohde & Schwarz HMC 8012, digital multimeter with storage function |
Thermography: |
Optris PI640, infrared camera PI Connect evaluation software with profiles |
Acoustics: |
NTI Audio M2211 (with calibration file) Steinberg UR12 (with phantom power for the microphones) Creative X7, Smaart v.7 own low-reflection measuring room, 3.5 x 1.8 x 2.2 m (LxTxH) Axial measurements, perpendicular to the center of the sound source(s), measuring distance 50 cm Noise in dBA (Slow) as RTA measurement Frequency spectrum as a graph |
- 1 - Einführung und Test-Setup
- 2 - 3DMark, VRMark, Civilization AI Test
- 3 - Ashes of the Singularity: Escalation
- 4 - Battlefield 1
- 5 - Civilization VI
- 6 - Warhammer 40K: Dawn of War III
- 7 - Project Cars
- 8 - Far Cry Primals
- 9 - Hitman (2016)
- 10 - Grand Theft Auto (GTA) V
- 11 - DTP, Office, Multimedia und Kompression
- 12 - Workstation 2D- und 3D-Performance
- 13 - CPU-Computing und Rendering
- 14 - Leistungsaufnahme und Temperaturen
- 15 - Zusammenfassung und Fazit
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