Best AMD & Intel CPUs Under $400
When it comes to finding the best AMD and Intel CPUs under $400, there are plenty of options to choose from. Both AMD and Intel offer powerful and reliable processors, so it really comes down to personal preference. Ultimately, whichever processor you decide on should provide excellent performance and reliable performance, while also falling within your budget.
We have tested and reviewed latest AMD and Intel CPUs price under $400, and below are top recommended ones:
Best AMD CPUs Under $400:
AMD Ryzen 7 5800X3D – Check Price at Amazon/B&H Photo Video/Newegg
The AMD Ryzen 7 5800X3D is one of the best selling AMD CPUs on the market, currently best CPU price under $400. It’s featured with 3D V-Cache tech, 16 thread processor includes 96MB of L3 cache while still allowing the CPU to fit socket AM4 motherboards. Combined with the powerful Zen 3 7nm architecture, with a base clock speed of 3.4 GHz and a max boost clock speed of 4.5 GHz, this processor is designed to enhance 1080p video game performance by up to 15% with high graphical settings. Overall, AMD Ryzen 7 5800X3D is an excellent choice for gaming, streaming, or content creation, and it should easily meet the needs of anyone looking for a powerful, multi-tasking processor.
Features:
- The world’s fastest gaming desktop processor and first gaming processor with 3D stacking technology
- 8 Cores and 16 processing threads with AMD 3D V-Cache technology
- 4.5 GHz Max Boost, 100 MB cache, DDR4-3200 support
- For the advanced Socket AM4 platform, can support PCIe 4.0 on X570 and B550 motherboards
AMD Ryzen 7 7700X – Check Price at Amazon/B&H Photo Video/Newegg
The AMD Ryzen 7 7700X is latest Zen 4 desktop processor released in 2022. It features eight cores and 16 threads to help quickly load and multitask demanding applications. Designed for socket AM5 motherboards using the powerful Zen 4 architecture, this enthusiast-grade Ryzen processor delivers significantly improved performance compared to its predecessor while maintaining high energy efficiency. With a base clock speed of 4.5 GHz and a max boost clock speed of 5.4 GHz in addition to 32MB of L3 Cache, the Ryzen 7 7700X is built to deliver the power needed to smoothly handle tasks ranging from content creation to immersive gaming. You can boost performance further by overclocking this unlocked processor.
Features:
- 8 Cores & 16 Threads
- 4.5 GHz Base Clock
- 5.4 GHz Max Boost Clock
- Socket AM5
- 8MB L2 & 32MB L3 Cache
- Integrated AMD Radeon Graphics
- DDR5-6400 Memory
- Unlocked Processor
- Zen 4 Architecture
Best Intel CPUs Under $400:
Intel Core i7-13700KF – Check Price at Amazon/B&H Photo Video/Newegg
The Intel Core i7-13700KF is currently best Intel CPU price under $400, this 13th generation desktop processor builds upon the Hybrid Core architecture and Intel 7 process by fitting 16 cores— four more than the previous generation— onto a single processor while still supporting the LGA 1700 socket. Designed to provide high performance, the Core i7-13700KF features eight low-voltage Efficient-cores that handle background tasks for multitasking while the eight 3.4 GHz Performance-cores provide speed for demanding applications and games. The built-in Intel Thread Director ensures that the two work seamlessly together by dynamically and intelligently assigning workloads to the right core at the right time.
Features:
- 16 cores (8 P-cores + 8 E-cores) and 24 threads
- Performance hybrid architecture integrates two core microarchitectures, prioritizing and distributing workloads to optimize performance
- Up to 5.4 GHz unlocked. 30M Cache
- Compatible with Intel 600 series and 700 series chipset-based motherboards
- Turbo Boost Max Technology 3.0, and PCIe 5.0 & 4.0 support. Intel Optane Memory support. No thermal solution included. Discrete graphics required
Intel Core i9-11900K – Check Price at Amazon/B&H Photo Video/Newegg
The Intel Core i9-11900K is an impressive new processor designed to deliver top-of-the-line performance. It features an 8 core, 16 thread design with a base frequency of 3.5 GHz and up to 5.3 GHz with Intel Turbo Boost Max 3.0. With a Thermal Velocity Boost maximum single-core speed of 5.3 GHz, the i9-11900K provides some of the highest single-core performance available. It comes with a full suite of Intel technologies, such as Advanced Vector Extensions 2 (AVX2) and Intelligent Performance Boost (IPB). The Intel Core i9-11900K also supports PCIe 4.0, allowing for faster data rates. This processor has great potential for gaming and content creation applications. The i9-11900K includes an unlocked multiplier, allowing users to overclock their processor for higher performance. This makes it a great choice for enthusiasts or gamers who want to squeeze every bit of performance out of their system. In addition, it comes with a Tempsense thermal monitoring system that helps you keep track of your processor’s temperature and make sure it is running safely. With its fast clock speeds and overclocking potential, the Intel Core i9-11900K offers excellent performance for demanding tasks. Its support for Intel technologies and PCIe 4.0 ensures you are getting the latest tech, and its unlocked multiplier makes it a great choice for enthusiasts. All in all, the Intel Core i9-11900K is an impressive processor that will provide fast and efficient performance for users who need it.
Features:
- The processor features Socket LGA-1200 socket for installation on the PCB
- 16 MB of L3 cache rapidly retrieves the most used data available to improve system performance
- 14 nm design offers great efficiency for computing, delivers nimble processing with balanced cost, performance, and power
- To boost graphics and visual quality, the chipset has a built in Intel UHD Graphics 750 controller. Supports up to 3 monitors.



