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Is the Core i9-11900K CPU Good for Gaming?

Find out if Intel's Core i9 11900K processor is good for gaming.

11900K Good for Gaming Chuck Fortner / Unsplash

Last Updated: June 23, 2022

Written by Kevin Jones

When selecting a CPU for gaming, the most important characteristics are the frequency (clock speed), core/thread count, cache size, and supported memory type. Additional considerations, such as integrated graphics and overclocking needs, may also influence your selection.

In addition to discussing the characteristics of the 11900K for gaming, this article will discuss recommendations for compatible motherboards, CPU coolers, and memory.

Check another CPU:
Intel Core i9-11900K Intel Core i9-11900K Check Price on Amazon Amazon Affiliate Link

Is the 11900K Good for Gaming?

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When using Intel's Core i9 11900K CPU for gaming, you can expect good gaming performance with either a high-performance CPU cooler or a stock CPU cooler. This performance is based on the following characteristics of the CPU and their relevance to the latest graphics-intense games:

  • 16 MB of L3 cache allows for mediocre performance
  • 8 cores allow for excellent performance
  • 3.50 GHz base frequency is good for performance
  • 5.30 GHz single-core max turbo frequency is excellent for performance (with a high-end cooler)
  • Max stock DDR4 speed of 3200 MT/s can be good for performance
  • Overclocking support can be excellent for performance (with a high-end cooler)
  • PCIe 4.0 support can be excellent for performance (with the fastest SSDs and GPUs)

The 11900K has integrated graphics support, but this performance assessment assumes you will use a graphics card. Integrated graphics support is mediocre or worse with the latest graphics-intense games.

Check out these Intel Core CPUs that are Good or Excellent for gaming:

Check out my article, Choosing the Best CPU Cooler for Intel's Core i9-11900K, for recommended coolers that can maintain these boost frequencies.

Is the Cache Size of the 11900K Good for Gaming?

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A CPU's cache is a small amount of memory, close to the CPU cores, containing recently used data.

Games performance can improve as cache size increases, as it will reduce delays when retrieving commonly used game assets from memory.

An L3 cache capacity of at least 20 MB is ideal for game performance.

The Intel Core i9-11900K has an L3 cache capacity of 16 MB.

The 11900K's 16 MB of L3 cache allows for mediocre performance with the latest graphics-intense games.

Is the Core Count of the 11900K Good for Gaming?

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Increased core counts can improve the performance of games that use them, but most modern games don't benefit from having more than 6–8 cores. Remember that cache sizes often increase along with core counts, so if you want to increase your L3 cache, you may need to get a CPU with more cores. Intel's 11900K CPUs have 8 cores.

The 11900K's 8 cores allow for excellent performance with the latest graphics-intense games.

Is the Clock Speed of the 11900K Good for Gaming?

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Single-core performance is essential for some games, as many don't take full advantage of multiple cores.

Turbo boost frequencies are only achieved under ideal circumstances. The safest strategy for consistent gaming performance with a basic cooler is to get a higher base clock speed processor. However, with adequate cooling, you may be able to maintain speeds near the max boost frequency.

When using a high-end cooler, the 11900K CPU's support for overclocking can be excellent for performance with the latest graphics-intense games.

The processor has a 3.50 GHz base frequency and supports a 5.30 GHz single-core max turbo frequency.

The 11900K's 3.50 GHz base frequency is good for performance with the latest graphics-intense games. You can reach these base frequencies even without a high-end cooler.

With a high-end cooler, the 11900K's 5.30 GHz single-core max turbo frequency is excellent for performance with the latest graphics-intense games. You can maintain these frequencies with a high-end cooler.

Check out my article, Choosing the Best CPU Cooler for Intel's Core i9-11900K, for recommended coolers that can maintain these boost frequencies.

Is the DDR Support of the 11900K Good for Gaming?

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The 11900K CPU's support for DDR4 with a max stock speed of 3200 MT/s can be good for performance with the latest graphics-intense games.

Faster PC memory can improve game performance and frame rates, but using the fastest RAM may not have as much of an impact as upgrading your CPU and graphics card or adding more RAM.

Learn about our recommended RAM for the 11900K in Choosing the Best RAM for Intel's Core i9-11900K CPU.

What Does the K Suffix in 11900K Mean?

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Processor Name Suffix Meaning
K "K" means it's an unlocked CPU. Unlocked CPUs have configurable frequencies and thus support overclocking. Your "motherboard" must support overclocking to overclock unlocked CPUs. Motherboards with Z-series chipsets typically support overclocking. Learn more about what each chipset supports in my article Which Chipsets Work With Intel's Core i9-11900K CPU?.

The 11900K model name doesn't have an F suffix. Non-F CPUs contain integrated graphics, and a separate graphics card isn't required if your motherboard includes video-output connectors (e.g., HDMI).

The 11900K model name has a K suffix. K-suffixed CPUs can be overclocked with a compatible motherboard.

Motherboards with a Z-series chipset typically support overclocking. For example, motherboards with the Z590 chipset usually support overclocking Intel's 11th Gen Core CPUs. Learn more about what each chipset supports in my article Which Chipsets Work With Intel's Core i9-11900K CPU?.

Intel Core i9-11900K Intel Core i9-11900K Check Price on Amazon Amazon Affiliate Link

Cooling the 11900K

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A CPU cooler's TDP (Thermal Design Power) rating indicates how much heat it can dissipate in watts. If the cooler can't keep your CPU cool enough, your CPU may throttle (slow down), and your cooler will constantly run at full speed.

Intel CPU specifications indicate this power dissipation number as "Processor Base Power."

The Core i9-11900K has a TDP of 125 watts.

A CPU cooler can still work with a lower TDP rating than the TDP of a CPU. However, the CPU will eventually throttle itself to a lower frequency to allow itself to cool.

The CPU may not achieve or maintain maximum turbo speeds without adequate cooling.

Learn more in Choosing the Best CPU Cooler for Intel's Core i9-11900K.

Motherboard Requirements for Core i9-11900K Processors

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For Intel's 11th generation Core i9 11900K processor, you'll need a motherboard with an LGA 1200 socket and a compatible 500-series or 400-series chipset.

Motherboards for Intel processors are made with chipsets provided by Intel. Each chipset offers a unique set of capabilities. However, motherboards must explicitly support features and capabilities for you to use them. Verify that a motherboard supports the features and capabilities you desire.

The "K" in the model name 11900K means it's an unlocked processor that supports overclocking. You will need a motherboard with the Z590 or Z490 chipset to support CPU overclocking.

For compatiblity with Intel's 11th generation Core processors, you can use any of the 500-series chipsets: Z590, H570, B560, H510. These are roughly sorted from most to least functionality. The W580 and Q570 chipsets are also compatible, but are intended for workstation and business use cases; their availability in stand-alone motherboards is limited.

While the budget-friendly 400-series B460 and H410 won't work with the 11th generation Core processors, the Z490 and H470 400-series chipsets are compatible. However, these chipsets were originally designed for the 10th generations Core processors, and will limit the capabilities of your system. The W480 and Q470 chipsets are also compatible, but are intended for workstation and business use cases; their availability in stand-alone motherboards is limited.

For a detailed comparison of these chipsets, check out my article Which Chipsets Work With Intel's Core i9-11900K CPU?.

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Best Feature Motherboard: ASUS ROG Maximus XIII Hero

  • Our recommended feature-rich motherboard to pair with the Core i9-11900K is ASUS's ROG Maximus XIII Hero: ASUS ROG Maximus XIII Hero ASUS ROG Maximus XIII Hero Check Price on Amazon Amazon Affiliate Link
    • Four NVMe M.2 slots, which is great! (two @ PCIe 4.0 speeds, two @ PCIe 3.0 speeds).
    • This board includes various headers for accessories, including 3 ARGB headers for lighting control and separate liquid pump header.
    • Audio noise canceling and an optical audio output port
    • Z590 chipset supports overclocking for K-prefixed CPUs.
    • PCIe 4.0 support
    • Wi-Fi 6E makes it easy to reach the fastest speeds and future-proof your Wi-Fi system.
    • Bluetooth 5.2 is great for streaming music to Bluetooth headphones.
    • Two 2.5 Gb Ethernet ports are faster than most Internet speeds with room to spare for file transfers.
    • USB 3.2 Gen 2x2 offers 20 Gbps USB speeds!
    • Check the latest price of the ASUS ROG Maximus XIII Hero on Amazon (affiliate link).

Best Value Motherboard: MSI Z590 PRO WiFi ProSeries

  • Our recommended value motherboard to pair with the Core i9-11900K is MSI's Z590 PRO WiFi ProSeries motherboard: MSI Z590 PRO WiFi ProSeries MSI Z590 PRO WiFi ProSeries Check Price on Amazon Amazon Affiliate Link
    • Three NVMe M.2 slots, which is pretty good (one @ PCIe 4.0 speeds, two @ PCIe 3.0 speeds).
    • PCIe 4.0 support
    • Z590 chipset supports overclocking for K-prefixed CPUs.
    • Wi-Fi 6E makes it easy to reach the fastest speeds and future-proof your Wi-Fi system.
    • Bluetooth 5.2 is great for streaming music to Bluetooth headphones.
    • Two 2.5 Gb Ethernet ports are faster than most Internet speeds with room to spare for file transfers.
    • USB 3.2 Gen 2x2 offers 20 Gbps USB speeds!
    • Check the latest price of the MSI Z590 PRO WiFi ProSeries on Amazon (affiliate link).
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Best AIO Liquid Cooler: Enermax Liqmax III 360

  • This Enermax liquid cooler has an excellent cooling capability with a 360-watt TDP (Thermal Design Power).
  • Supports a variety of CPU sockets, including Intel LGA 2066, 2011-3, 2011, 1700, 1200, 1366, 1156, 1155, 1151, 1150 and AMD AM4, AM3+, AM3, AM2+, AM2, FM2+, FM2, FM1.
  • Quiet operation at 14-27 dBA.
  • Make sure your computer case dimensions support this, as it will take up a decent amount of space! Enermax Liqmax III 360 Enermax Liqmax III 360 Check Price on Amazon Amazon Affiliate Link

Best Dual-Fan Air CPU Cooler: Noctua NH-D15

  • Dual 140 mm fans provide 220-watt TDP (183 NSPR) of cooling capability.
  • Supports a variety of CPU sockets, including Intel LGA 1700, 1200, 1156, 1155, 1151, 1150, 2011, 2066 and AMD AM4, AM3, AM3+, AM2, AM2+, FM2, FM2+.
  • Quiet operation at 24.6 dBA. Noctua NH-D15, Premium CPU Cooler Noctua NH-D15, Premium CPU Cooler Check Price on Amazon Amazon Affiliate Link

Runner Up - Dual-Fan Air CPU Cooler: Thermaltake TOUGHAIR 510

  • This CPU cooler doesn't have any fancy LED lights, but the dual 120 mm fans do a great job of cooling LGA 1200 CPUs.
  • Suppose you think this cooler will take up too much space. In that case, Thermaltake has a few single-fan TOUGHAIR variants which use different orientations.
  • This CPU cooler has a 2000 RPM max speed for optimal cooling.
  • 180-watt TDP (Thermal Design Power). Thermaltake TOUGHAIR 510 Thermaltake TOUGHAIR 510 Check Price on Amazon Amazon Affiliate Link
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Before purchasing memory, review your motherboard specification to verify which speeds are supported. For example, if a DDR4 motherboard stated that it supports "DDR4 3400(O.C.) / 3333(O.C.) / 3300(O.C.) / 3200 / 3000," that would mean that it could support DDR4-3400, DDR4-3333, and DDR4-3300 with memory overclocking, and DDR4-3200 and DDR4-3000 at stock speeds. Motherboard specifications also indicate the maximum capacity per stick of RAM (DIMM) and across all slots.

  • At an effective frequency of 3200 MHz, this memory hits the fastest DDR4 speed supported by Intel's Core i9 11900K CPU without overclocking.
  • The low-profile form factor ensures that the heat spreaders don't get in the way of other devices, including your CPU heatsink. Corsair Vengeance LPX 32GB (2X16GB) 3200MHz DDR4 Corsair Vengeance LPX 32GB (2X16GB) 3200MHz DDR4 Check Price on Amazon Amazon Affiliate Link

Learn More About the Intel Core i9-11900K

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You can find detailed 11900K specifications on Intel's site.

Other Considerations When Building a PC

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Want to brush up on other new technologies to consider when building a computer? Check out these articles: