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Comparison Intel Core i5 Coffee Lake Refresh i5-9600K BOX vs Intel Core i5 Coffee Lake i5-8400 BOX

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Intel Core i5 Coffee Lake Refresh i5-9600K BOX
Intel Core i5 Coffee Lake i5-8400 BOX
Intel Core i5 Coffee Lake Refresh i5-9600K BOXIntel Core i5 Coffee Lake i5-8400 BOX
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Main
6 processing cores and 6 thread instructions. The base operating frequency is 3.7 GHz, and the frequency in TurboBoost mode is 4.6 GHz. 9 MB L3 cache.
SeriesCore i5Core i5
Code nameCoffee Lake RefreshCoffee Lake
SocketIntel LGA 1151 v2Intel LGA 1151 v2
Lithography14 nm14 nm
In boxBOX (no cooler)BOX (fan)
Cores and Threads
Cores6 cores6 cores
Threads6 threads6 threads
Speed
Clock speed3.7 GHz2.8 GHz
TurboBoost / TurboCore4.6 GHz4 GHz
Cache
L1 cache384 KB
L2 cache1536 KB
L3 cache9 MB9 MB
Specs
IGPUHD Graphics 630UHD Graphics 630
Front side bus8 GT/s
TDP95 W65 W
Instruction
MMX, SSE, SSE2, SSE2, SSSE3, SSE4.1, SSE4.2, EM64T, AES, AVX, AVX2 /FMA3, TSX/
MMX, SSE, SSE2, SSE3, SSSE3, SSE4, SSE4.1, SSE4.2, AES, AVX, AVX2 /BMI, BMI1, BMI2, F16C, FMA3, EM64T, NX, XD, VT-x, VT-d, MPX, SGX/
Multiplier3728
Free multiplier
PCI Express3.03.0
Passmark CPU Mark13446 score(s)11625 score(s)
Geekbench 426754 score(s)22258 score(s)
Cinebench R151042 score(s)924 score(s)
Memory
Max. RAM128 GB128 GB
Max. DDR4 speed2666 MHz2666 MHz
Channels22
Added to E-Catalogseptember 2018september 2017

Code name

This parameter characterizes, firstly, the technical process (see above), and secondly, some features of the internal structure of processors. A new (or at least updated) codename is introduced to the market with each new CPU generation; chips of the same architecture are "coevals", but may belong to different series (see above). At the same time, one generation can include both one and several code names.

Here are the most common Intel codenames today: Cascade Lake-X (10th gen), Comet Lake (10th gen), Comet Lake Refresh (10th generation), Rocket Lake (11th generation), Alder Lake (12th generation), Raptor Lake (13th generation), Raptor Lake Refresh (14th generation).

For AMD, this list includes Zen+ Picasso, Zen2 Matisse, Zen2 Renoir, Zen3 Vermeer, Zen3 Cezanne, Zen4 Raphael and Zen4 Phoenix.

In box

This parameter does not so much indicate the difference in technical characteristics as it describes the packaging and computer Hardware.

- OEM. The tray package, or OEM, provides that the processor is supplied without a cooling system (CO) and without a branded box - the packaging is usually a simple antistatic bag. You need to select and install cooling for such a CPU separately. In addition, components in tray packaging often have a shorter warranty period than in the box version, and their additional equipment is more meager. On the other hand, such solutions are noticeably cheaper, and the absence of CO allows you to select it separately, without relying on the manufacturer’s choice.

BOX (without cooler). Processors packed in branded boxes, but not equipped with cooling systems (CO). Such packaging is more expensive than OEM, but the warranty period for “boxed” chips is usually much longer (for example, three years instead of one). The absence of a cooler, on the one hand, requires additional efforts to find and install a coolant; on the other hand, cooling can be selected according to your own criteria, without relying on the manufacturer’s choice. However, it is worth considering that when installing a cooler yourself, it is difficult to achieve the same efficiency from it as with a factory installation; This is especially critical if the CPU is planned to be intensively overc...locked; for such modes it is better to choose a box package with a cooler.

BOX (with cooler). Processors packed in branded boxes and equipped with cooling systems (CO). Box packaging itself is more expensive than OEM, but this is compensated by a number of advantages - in particular, more extensive packaging and a longer warranty period. As for the presence of a cooler in the kit, it further increases the overall cost of the CPU, but eliminates the need to bother with the selection and installation of a separate cooling system. It is worth noting that the factory installation of CO allows you to achieve higher efficiency than independent installation, so for high loads (including overclocking) this particular configuration option is best suited. On the other hand, before purchasing, you need to check whether there is enough space in the case for a cooler: complete coolers can be quite bulky, and removing them can be difficult.

MPK (with cooler, without box). The multipack package, or MPK for short, implies the delivery of a processor with a standard boxed cooling cooler, but without a box and accompanying documentation. The processor is usually packaged in a simple antistatic bag. The MPK package is more expensive than OEM due to the presence of a cooling system, but cheaper than BOX (with cooler) due to the absence of a box. At the same time, the multipack kit usually has a shorter warranty period than the BOX delivery option (with a cooler).

Clock speed

The number of cycles per second that the processor produces in its normal operating mode. A clock is a single electrical impulse used to process data and synchronize the processor with the rest of the computer system. Different operations may require fractions of a clock or several clocks, but anyway, the clock frequency is one of the main parameters characterizing the performance and speed of the processor — all other things being equal, a processor with a higher clock frequency will work faster and better cope with significant loads. At the same time, it should be taken into account that the actual performance of the chip is determined not only by the clock frequency, but also by a number of other characteristics — from the series and architecture (see the relevant paragraphs) to the number of cores and support for special instructions. So it makes sense to compare by clock frequency only chips with similar characteristics belonging to the same series and generation.

TurboBoost / TurboCore

The maximum processor clock speed that can be reached when running in Turbo Boost or Turbo Core overclocking mode.

The name "Turbo Boost" is used for the overclocking technology used by Intel, "Turbo Core" for the solution from AMD. The principle of operation in both cases is the same: if some cores are not used or work under a load below the maximum, the processor can transfer part of the load from the loaded cores to them, thus increasing computing power and performance. Operation in this mode is characterized by an increase in the clock frequency, and it is indicated in this case.

Note that we are talking about the maximum possible clock frequency — modern CPUs are able to regulate the operating mode depending on the situation, and with a relatively low load, the actual frequency may be lower than the maximum possible. See "Clock frequency" for the general meaning of this parameter.

L1 cache

The amount of Level 1 (L1) cache provided by the processor.

Cache is an intermediate memory buffer into which the most frequently used data from RAM is written when the processor is running. This speeds up access to them and has a positive effect on system performance. The larger the cache, the more data can be stored in it for quick access and the higher the performance. Level 1 cache has the highest performance and the smallest volume — up to 128 KB. It is an integral part of any processor.

L2 cache

The amount of Level 2 (L2) cache provided by the processor.

Cache is an intermediate memory buffer into which the most frequently used data from RAM is written during processor operation. This speeds up access to them and has a positive effect on system performance. The larger the cache, the more data can be stored in it for quick access and the higher the performance. Level 2 cache volume can reach 12 MB, the vast majority of modern processors have such a cache.

Front side bus

The system bus frequency supported by the processor is, in fact, the clock frequency at which data is exchanged between the processor and the rest of the system.

This parameter is key to determining the overall CPU clock speed (see above): this frequency is equal to the system bus frequency multiplied by the multiplier (see below).

TDP

The amount of heat generated by the processor during normal operation. This parameter determines the requirements for the cooling system necessary for the normal operation of the processor, therefore it is sometimes called TDP — thermal design power, literally “thermal (cooling) system power”. Simply put, if the processor has a heat dissipation of 60 W, it needs a cooling system that can remove at least this amount of heat. Accordingly, the lower the TDP, the lower the requirements for the cooling system. Low TDP values(up to 50 W) are especially critical for PCs that do not have the ability to install powerful cooling systems — in particular, systems in compact cases where a powerful cooler simply does not fit.

Instruction

Support by the processor of various sets of additional commands. These can be instructions that optimize the operation of the processor as a whole or with applications of a certain type (for example, multimedia, or 64-bit), prevent certain types of viruses from running on the computer, etc. Each manufacturer has its own assortment of instructions for CPUs.
Intel Core i5 Coffee Lake Refresh often compared
Intel Core i5 Coffee Lake often compared