AMD Ryzen 7 5700X vs. AMD Ryzen 7 3800X

5700X: Based on our evaluation, the 5700X's 8 cores allow for excellent performance overall.

3800X: Based on our evaluation, the 3800X's 8 cores allow for excellent performance overall.

Learn more about Core Counts below.

5700X: The 5700X has a 3.4 GHz base frequency, which is the speed before boosting.

3800X: The 3800X has a 3.9 GHz base frequency, which is the speed before boosting.

Learn more about CPU Clock Speeds below.

5700X: Based on our evaluation, the 5700X's 4.6 GHz single-core max boost frequency is excellent for performance overall. You can maintain these frequencies with a high-end cooler.

3800X: Based on our evaluation, the 3800X's 4.5 GHz single-core max boost frequency is excellent for performance overall. You can maintain these frequencies with a high-end cooler.

Learn more about CPU Clock Speeds below.

5700X: Based on our evaluation, the 5700X CPU's support for overclocking can be excellent for performance overall.

3800X: Based on our evaluation, the 3800X CPU's support for overclocking can be excellent for performance overall.

Learn more about Overclocking below.

5700X: Based on our evaluation, the 5700X CPU's support for DDR4 with a max stock speed of 3200 MHz can be good for performance overall.

3800X: Based on our evaluation, the 3800X CPU's support for DDR4 with a max stock speed of 3200 MHz can be good for performance overall.

Learn more about DDR Support below.

5700X: Based on our evaluation, the 5700X CPU's support for PCIe 4.0 can be excellent for performance overall, when using the fastest SSDs and graphics cards.

3800X: Based on our evaluation, the 3800X CPU's support for PCIe 4.0 can be excellent for performance overall, when using the fastest SSDs and graphics cards.

5700X: Based on our evaluation, the 5700X's impressive 32 MB of L3 cache is excellent for performance overall.

3800X: Based on our evaluation, the 3800X's impressive 32 MB of L3 cache is excellent for performance overall.

Learn more about Cache Sizes below.

Based on our evaluation of using AMD's Ryzen 7 5700X CPU for gaming, you can expect excellent game performance with a high-performance CPU cooler.

Based on our evaluation of using AMD's Ryzen 7 3800X CPU for gaming, you can expect excellent game performance with a high-performance CPU cooler.

While a good GPU is critical for gaming performance, your CPU will also have a significant impact. If the CPU is too slow, it can be a bottleneck for your GPU, which can reduce your framerate or cause stuttering. The most important CPU capabilities for gaming are single-core max boost frequency and the number of cores.

Depending on the game, the CPU will often handle tasks including scene management, gameplay logic, physics calculations, and asset loading. We took these factors into account when assessing the expected CPU performance for gaming.

Having multiple CPU cores can improve performance with games that utilize them. However, developers cannot split up every task to take advantage of a growing number of cores. Most modern games don't benefit from having more than 6–8 cores. Game performance will experience diminishing returns as you add more CPU cores.

Based on our evaluation of using AMD's Ryzen 7 5700X CPU for general apps, you can expect good app performance with a high-performance CPU cooler.

Based on our evaluation of using AMD's Ryzen 7 3800X CPU for general apps, you can expect good app performance with a high-performance CPU cooler.

If you're only planning to stream shows, use office apps, or browse the internet, you won't need a top-end CPU to get good performance. The most important CPU capability for general app usage is the single-core max boost frequency.

Browsers depend on your CPU to quickly load pages and video content and manage multiple browser tabs. Higher single-core boost frequencies can speed up page load times.

Office and web applications are typically single-threaded, so running a single application won't take advantage of a many-core CPU.

The more cores a CPU has, the more applications you can run simultaneously without noticing a performance impact.

Office and web applications rarely max out the CPU for long periods. These applications can use boost speeds when a burst of processing power is needed, returning to the more efficient base frequencies afterward.

We took all of these factors into account while assessing the expected CPU performance for general apps.

Based on our evaluation of using AMD's Ryzen 7 5700X CPU for professional tools, you can expect excellent tool performance with a high-performance CPU cooler.

Based on our evaluation of using AMD's Ryzen 7 3800X CPU for professional tools, you can expect excellent tool performance with a high-performance CPU cooler.

Video editors, 2D and 3D graphics tools, software compilers, and engineering tools require high-performing CPUs.

Professional tools are often well optimized to use many cores. CPU cores allow tools to parallelize processing tasks. Increasing the number of cores can divide the time required to process a task if the tool has good multi-threading support.

To maximize performance with professional tools, you'll want to use a CPU with a high boost frequency and many CPU cores. Good heat dissipation is needed to maintain boost frequencies for extended periods. We took these factors into account while assessing the expected CPU performance for professional tools.

While graphics applications use your GPU for some rendering tasks, most calculations and data operations are still dependent on your CPU.

AMD's Ryzen 7 5700X CPUs have 8 cores.

AMD's Ryzen 7 3800X CPUs have 8 cores.

We found that, in general, more cores do provide better performance in professional tools and when running multiple applications simultaneously.

Increased core counts can improve the performance of games and professional tools that use them. Most modern games don't benefit from having more than 6–8 cores. Even general apps can benefit from many cores when numerous applications are open simultaneously. Web browsers don't significantly take advantage of multiple cores when loading a single page. However, more CPU cores can improve performance when running demanding web apps in multiple windows.

The AMD Ryzen 7 5700X has a 3.4 GHz base frequency and supports a 4.6 GHz single-core max boost frequency.

The AMD Ryzen 7 3800X has a 3.9 GHz base frequency and supports a 4.5 GHz single-core max boost frequency.

We've experienced that single-core performance is essential for some games, as many don't take full advantage of multiple cores. Similarly, we have experienced that professional tools depend on high single and multi-core boost frequencies to maximize their processing speed.

Boost frequencies are only achieved under ideal circumstances. However, with adequate cooling, you may be able to maintain speeds near the max boost frequency.

Check out my article, Choosing the Best CPU Cooler for AMD's Ryzen 7 5700X, for recommended coolers that can maintain these boost frequencies on the 5700X.

Check out my article, Choosing the Best CPU Cooler for AMD's Ryzen 7 3800X, for recommended coolers that can maintain these boost frequencies on the 3800X.

We've found that lower base clock speeds result in lower power consumption.

A CPU's base frequency refers to the clock speed at which its cores run under normal operating conditions. However, the actual clock speed of the CPU can vary depending on the workload and the system power state.

A lower base frequency can lead to better power savings overall since the clock speed decreases when the load is low, resulting in lower power consumption. However, a CPU may run slower than the base frequency to conserve power or reduce heat generation. For example, modern CPUs use technologies like Intel SpeedStep or AMD Cool'n'Quiet to dynamically adjust the CPU's clock speed based on the system's workload and power state.

A CPU with a lower base frequency may generate less heat under normal operating conditions, enabling it to boost some cores to higher frequencies while remaining within its thermal limits. This lower base frequency results in better performance than a CPU with a higher base frequency, which may not be able to sustain its boost frequency for long periods due to thermal throttling. However, this is mostly only relevant if your system's cooling solution can only partially dissipate the heat produced by all cores being fully boosted.

The 5700X CPU's fastest supported DDR memory type is DDR4, with a max stock speed of 3200 MHz.

The 3800X CPU's fastest supported DDR memory type is DDR4, with a max stock speed of 3200 MHz.

You can exceed these stock speeds officially supported by CPUs when overclocking memory, such as with an XMP profile. Motherboard specifications will indicate their supported overclocked-memory speeds. To be able to overclock DDR memory, your motherboard chipset needs to support memory overclocking.

Faster PC memory can improve game and professional tool performance by reducing the time it takes to perform calculations and data operations.

We've experienced that using the quickest 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 5700X in Best RAM for the AMD Ryzen 7 5700X CPU.

Learn about our recommended RAM for the 3800X in Best RAM for the AMD Ryzen 7 3800X CPU.

The AMD Ryzen 7 5700X has an L3 cache capacity of 32 MB.

The AMD Ryzen 7 3800X has an L3 cache capacity of 32 MB.

A CPU's cache is a small amount of memory, close to the CPU cores, containing recently used data. An L3 cache capacity of at least 20 MB is ideal for games and professional tool performance.

Games and professional tool performance can improve as cache size increases, as it can reduce delays when retrieving commonly used assets from memory. While nearly any task will use a CPU's cache, our research indicates that a large cache becomes less impactful for general PC usage, such as browsing webpages.

Remember that cache sizes often increase with core counts, so if you want to increase your L3 cache, you may need to get a CPU with more cores.

The 5700X supports overclocking.

The 3800X supports overclocking.

Overclocking is mainly relevant for PC gamers who want to maximize their game framerates. CPU overclocking increases frequencies past their default limits. Excellent heat dissipation via fans or another solution is required to maintain system stability while overclocking. While we felt a sense of excitement and anticipation when we pushed the limits of our CPU's performance, it's essential to remember that overclocking comes with the risk of damaging your system components or voiding warranties.

Professional tools can benefit from overclocked frequencies. However, overclocking may introduce some possibility of system instability, which may be less acceptable in business scenarios. We've found out the hard way that losing work due to system instability is a pain.

Find the Ryzen 7 5700X at Best Buy. Find the Ryzen 7 3800X at Best Buy.

Find the Ryzen 7 5700X at Newegg. Find the Ryzen 7 3800X at Newegg.

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