The Best Gaming CPUs in 2025/2026: AMD vs Intel Tested

If your primary objective is PC gaming, the **AMD Ryzen 7 7800X3D** is the best processor money can buy. It outperforms flagship chips costing hundreds of pounds more while drawing less than 70 Watts in games.

For builders working within an £800 to £1,000 system budget, the **AMD Ryzen 5 7600X** provides an unbeatable gateway into the AM5 DDR5 ecosystem for around £180.

Every processor relies on Level 3 (L3) cache—ultra-fast SRAM situated directly on the silicon die. When game logic, NPC simulations, draw calls, or collision data can be retrieved from L3 cache instead of system RAM, memory latency drops from ~65 nanoseconds to under 12 nanoseconds.

AMD achieves this by 3D-stacking an additional 64MB SRAM tile directly over the CPU compute complex, providing 96MB of total L3 cache. In titles with complex simulations like Assetto Corsa, Factorio, World of Warcraft, and Microsoft Flight Simulator, this yields up to 30% higher 1% low frame rates.

The 7800X3D is an 8-core, 16-thread processor built on TSMC 5nm Zen 4 silicon. Because all 8 cores reside on a single CCD with direct access to the 96MB 3D V-Cache, it avoids the core-to-core latency penalties seen on dual-CCD processors.

In our UK gaming test suite, the 7800X3D draws an average of just 52W in Cyberpunk 2077 and 61W in Baldur's Gate 3. It can be effortlessly kept below 65°C using an affordable £32 dual-tower air cooler like the Thermalright Peerless Assassin 120 SE.

Priced at approximately £180 in the UK, the Ryzen 5 7600X features 6 cores and 12 threads boosting up to 5.3 GHz. For gamers playing at 1440p or 4K with an RTX 4070 Super or RX 7800 XT, the 7600X delivers 92-95% of the frame rate of top-tier processors while leaving substantial budget for better graphics hardware.

If your workload involves compiling software, video rendering in Premiere Pro, or heavy 3D asset generation alongside gaming, Intel's Core i5-14600K is a formidable contender. With 6 Performance cores and 8 Efficiency cores (20 threads total), it blazes through multi-threaded tasks.

Platform longevity is a major consideration for UK builders. Intel's LGA1700 socket is at the end of its life cycle—there will be no new processor generations released for LGA1700 motherboards.

In contrast, AMD has committed to supporting Socket AM5 through at least 2027. Buying an AM5 motherboard today guarantees you can drop in future Zen 5 and Zen 6 processors years down the line without replacing your motherboard or RAM.