Best AI & LLMs CPUs Under £200 in 2026

The 2.16GHz Core 2 Duo T7400 pairs dual cores with 4MB L2 cache and a 667MHz FSB, a dated but functional pairing for legacy Socket 478 boards. Its 65W TDP and tray packaging make it a low-cost drop-in upgrade for older desktops, though it lacks modern features like DDR5 or PCIe 5.0. Best for hobbyists maintaining vintage systems who need a cheap, reliable CPU for basic office tasks or retro computing.

The 4-core, 8-thread Raptor Lake chip boosts to 4.7GHz with a 58W base power, delivering solid everyday performance without integrated graphics. It supports both DDR5 and DDR4 memory plus PCIe 5.0, giving budget builders flexibility in component choice. Best for office workers and casual gamers who already own a discrete GPU and want a low-cost, efficient upgrade for web browsing and light productivity.

The 7nm Zen 3 architecture delivers strong efficiency with a 65W TDP and a 4.5GHz boost clock, making it a cool-running option for existing AM4 systems. Its 32MB of L3 cache and bundled Wraith Stealth cooler provide solid out-of-the-box value for a drop-in upgrade. This processor is best for budget-conscious PC builders seeking a capable 6-core, 12-thread chip for productivity workloads without needing a discrete GPU.

The 12-core, 24-thread design with 64 PCIe 3.0 lanes delivers strong parallel throughput for multi-threaded workloads, backed by a 4.0GHz boost clock. Its unlocked multiplier and quad-channel DDR4 ECC support offer accessible overclocking and memory flexibility on the sTR4 platform. This processor suits budget-conscious workstation users running virtual machines or heavy batch rendering who need high core counts more than single-thread speed.

Eight physical cores with a 4.9GHz boost clock deliver strong single-thread performance for gaming, bypassing the hyperthreading overhead of its i9 sibling. The unlocked 95W TDP on the LGA 1151 socket provides straightforward overclocking headroom for users with existing 300-series motherboards. This processor is best for pure gamers seeking high frame rates who don't need the extra threads for streaming or video rendering.

Its 12 cores and 30MB L3 cache deliver a PassMark multi-core score of 7363, making it a capable workhorse for parallelized server tasks on the LGA2011 socket. This renewed unit offers a cost-effective entry point for legacy dual-socket workstations, arriving in tested condition with no visible cosmetic damage. It is best suited for homelab operators upgrading aging servers for virtualization or multi-threaded productivity workloads, not for single-threaded or gaming applications.

A 64-core, 128-thread design with integrated 128 lanes of PCIe 3.0 eliminates the need for a separate chipset, simplifying dense server builds. Its 8-channel memory architecture supports up to 2TB of DDR4 ECC RAM, providing massive capacity for memory-bound virtualization tasks. This processor is best for data center operators running highly parallel, legacy workloads who need maximum core density and I/O connectivity on a single socket.