CPUs
Shop certified tested AMD Ryzen and Intel Core CPUs at PC Power Up. Whether you need a high-performance gaming processor, a budget AM4 or LGA1700 CPU upgrade, or a reliable chip for your workstation, every processor is 100% stress-tested and benchmarked before listing.
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Thermalright TF7 Thermal Paste 2g (12.8 W/m·K) | High-Performance CPU/GPU Compound with Spatula for AMD and Intel CPUs -
AMD Ryzen 5 5600X Processor (6‑Core, Zen 3, AM4) -
AMD Ryzen 7 5700X Processor (8-Core, 16-Thread, Up to 4.6GHz, Zen 3, AM4 Socket) -
AMD Ryzen 5 3600 Processor (6‑Core, Zen 2, AM4) -
AMD Wraith Stealth Cooler Heatsink Fan for AMD Ryzen CPUs -
AMD Ryzen 5 5500 Processor (6‑Core, Zen 3, AM4) -
AMD Ryzen 9 5900X Processor (12-Core, 24-Thread, Up to 4.8GHz, Zen 3, AM4 Socket) -
Thermalright Assassin X 120R SE Plus CPU Cooler – 148mm, Dual PWM Fans, AMD Ryzen AM4/AM5 & Intel Core LGA1700 -
AMD Ryzen 9 3900X Processor (12‑Core, Zen 2, AM4) -
AMD Ryzen 7 5800X 8-Core 16-Thread AM4 CPU Processor (Zen 3) -
AMD Ryzen 7 3700X Processor (8‑Core, Zen 2, AM4) -
Intel Core i9-10900K Processor (10-Core, 20-Thread, Up to 5.3GHz, Unlocked, LGA1200 Socket) -
AMD Ryzen 7 7800X3D Processor (8-Core, 3D V-Cache, AM5) OEM Tray - Brand New -
Intel Core i5-14500 Processor (14-Core, 20-Thread, Up to 5.0GHz, Raptor Lake Refresh, LGA1700 Socket) -
Intel Core i5‑8600K CPU (6‑Core, Coffee Lake, LGA1151) -
AMD Ryzen 5 3500X Processor (6‑Core, Zen 2, AM4) -
3 x Intel CPU Protective Cases for Intel Core CPUs up to 11th gen -
AMD Ryzen 9 3900 Processor (12‑Core, Zen 2, AM4) -
Intel Core i5‑11600K CPU (6‑Core, Rocket Lake, Unlocked, LGA1200) -
AMD Ryzen 9 9950X Processor (16‑Core, Zen 5, AM5) -
AMD Ryzen 9 9900X Processor (12‑Core, Zen 5, AM5) -
AMD Ryzen 7 5700G Processor (8‑Core, Vega Graphics, AM4) -
AMD Ryzen 5 9600X Processor (6‑Core, Zen 5, AM5) -
Intel Core i9‑11900K CPU (8‑Core, Rocket Lake, Unlocked, LGA1200) -
AMD Ryzen 3 4100 Processor (4 Cores, 8 Threads, Zen 2, Socket AM4) -
Intel Core i7-13700KF Processor (16 Cores, 24 Threads, LGA 1700) -
AMD Ryzen 5 3400G Processor (4-Core, RX Vega 11 Graphics, Socket AM4) -
Thermalright Peerless Assassin 120 SE Black CPU Cooler – Dual‑Tower, 6 Heat Pipes, AMD Ryzen AM4/AM5 & Intel Core LGA1700 -
Intel Core i5-10505 CPU 3.20GHz (6-Core, Comet Lake, LGA1200) -
AMD Ryzen 5 5500GT Processor (6‑Core, Zen 3, AM4) -
Intel Core i9‑11900F Processor (8‑Core, Rocket Lake, LGA1200) -
AMD Ryzen 5 4500 Processor (6‑Core, Zen 2, AM4) -
Intel Core i7‑11700K CPU (8‑Core, Rocket Lake, Unlocked, LGA1200) -
Intel Core i5‑9400F CPU (6‑Core, Coffee Lake, LGA1151) -
Intel Core i5‑13600K CPU (14‑Core Hybrid, Raptor Lake, Unlocked, LGA1700) -
Intel Core i3‑8100 CPU (4‑Core, Coffee Lake, LGA1151) -
Intel Core i7‑11700KF CPU (8‑Core, Rocket Lake, LGA1200) -
AMD Ryzen 9 5900X Processor (12‑Core, Zen 3, AM4) – New & Sealed -
Intel Core i5‑8500T CPU (6‑Core, Coffee Lake, 35W Low‑Power, LGA1151) -
3 x AMD Ryzen CPU Protective Cases -
Intel Core i5‑13500T CPU (14‑Core Hybrid, Raptor Lake, Low‑Power 35W, LGA1700) -
Intel Core i7‑12700K CPU (12‑Core Hybrid, Alder Lake, Unlocked, LGA1700) -
AMD Ryzen 5 7600X Processor (6‑Core, Zen 4, AM5) - New & Sealed -
AMD Ryzen 7 8700G Processor (8‑Core, Zen 4, AM5) -
AMD Ryzen 5 8600G Processor (6‑Core, Zen 4, AM5) -
AMD Ryzen 5 8500G Processor (6‑Core, Zen 4, AM5) -
AMD Ryzen 5 7500F Processor (6‑Core, Zen 4, AM5) -
AMD Ryzen 5 2600X Processor (6 Cores, 4.2GHz Turbo) AM4 -
AMD Ryzen 9 7950X Processor (16‑Core, Zen 4, AM5) -
AMD Ryzen 9 7900X3D Processor (12‑Core, 3D V‑Cache, AM5) -
AMD Ryzen 9 7900X Processor (12-Core, 24-Thread, Up to 5.6GHz, Zen 4, AM5 Socket) -
AMD Ryzen 9 7900 Processor (12‑Core, Zen 4, AM5) -
AMD Ryzen 9 3950X Processor (16‑Core, Zen 2, AM4) -
AMD Ryzen 7 7700X Processor (8‑Core, Zen 4, AM5) -
AMD Ryzen 7 7700 Processor (8‑Core, Zen 4, AM5) -
AMD Ryzen 5 7600X Processor (6-Core, 12-Thread, Up to 5.3GHz, Zen 4, AM5 Socket) -
Intel Core i9‑11900KF CPU (8‑Core, Rocket Lake, Unlocked, LGA1200) -
Intel Core i9-10900KF Processor (10-Core, 20-Thread, Up to 5.3GHz, Unlocked, LGA1200 Socket) -
Intel Core i9‑10900 CPU (10‑Core, Comet Lake, LGA1200)
Tested & Health-Checked Desktop Processors (AMD & Intel)
Upgrade your rig with tested, health-checked desktop CPUs at PC Power Up. Explore our catalog of pre-owned AMD Ryzen and Intel Core processors covering popular socket platforms including AM4, AM5, LGA1200, and LGA1700. Whether you are building an affordable 1080p esports PC, assembling a high-refresh-rate gaming platform, or upgrading a workstation, buying pre-owned processors is a cost-effective route to peak performance. Every processor undergoes extensive multi-core stress testing, pin/pad contact validation, and thermal benchmarking before listing. Looking to configure a complete custom desktop from scratch? Design your system using our Custom PC Builder.
Our 3-Point Hardware Validation
Step 1
Visual & Pin / Pad Inspection
Microscopic inspection of AM4 substrate pins or Intel/AM5 LGA contact pads to ensure zero bending, corrosion, or physical damage.
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Step 2
Prime95 Load Testing
Sustained Prime95 load testing verifies multi-core stability, memory controller health, power delivery efficiency, and core boost consistency.
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Step 3
Thermal & PCIe Validation
Stress testing checks heat dissipation efficiency and verifies direct PCIe lane communications to installed graphics cards and storage controllers.
CPU Cooler Selection Guide
| Performance Tier | Compatible Processors | Recommended Cooling Solution |
|---|---|---|
| Entry Level | Ryzen 3 / Ryzen 5 (Non-X) & All Core i3 / Core i5 Models | Thermalright Assassin X 120R SE Plus → |
| Mid Range & High End | Ryzen 5 X / Ryzen 7 / Ryzen 9 & Core i7 / i9-9900K Models | Thermalright Peerless Assassin 120 SE → |
| Enthusiast Liquid Tier | Core i9 Series (i9-10900K & newer) | Liquid Cooling Required. Liquid cooled builds available in our Custom PC Builder → |
Popular Desktop CPU Platform Guide
| AMD Socket AM4 Platform (Ryzen 1000 - 5000 Series) | |
|---|---|
| Platform | AMD AM4 SOCKET |
| Memory Support | DDR4 Memory |
| Platform Highlights | Exceptional budget upgrade path featuring 3D V-Cache gaming chips (5700X3D/5800X3D) and wide motherboard availability. |
| AMD Socket AM5 Platform (Ryzen 7000 - 9000 Series) | |
|---|---|
| Platform | AMD AM5 SOCKET |
| Memory Support | DDR5 Memory Only |
| Platform Highlights | Next-gen LGA platform supporting PCIe 5.0 graphics/SSDs, high-frequency DDR5 RAM, and long-term socket longevity. |
| Intel Socket LGA1200 Platform (10th & 11th Gen Core) | |
|---|---|
| Platform | INTEL LGA1200 SOCKET |
| Memory Support | DDR4 Memory |
| Platform Highlights | Solid multi-threaded performance and affordable 1080p gaming capability with PCIe 4.0 support on 11th gen. |
| Intel Socket LGA1700 Platform (12th, 13th & 14th Gen Core) | |
|---|---|
| Platform | INTEL LGA1700 SOCKET |
| Memory Support | DDR4 or DDR5 (Motherboard dependent) |
| Platform Highlights | Features Performance and Efficient hybrid architecture for strong frame rates and multitasking throughput. |
Frequently Asked Questions
Q
How do I check if a CPU is compatible with my motherboard?
You must match the physical socket type (e.g., AM4, AM5, LGA1200, LGA1700) and chipset of your motherboard to the processor. Additionally, check your manufacturer's support page to confirm your motherboard's BIOS version supports the specific CPU generation. Explore our motherboard selection to find compatible boards.
Q
Do pre-owned CPUs perform the same as brand new processors?
Yes. CPUs are solid-state silicon chips without moving components, meaning they maintain original performance levels throughout their lifespan when operated under safe temperatures. Every CPU at PC Power Up undergoes rigorous Prime95 load testing to verify clock stability.
Q
What type of RAM do I need for my CPU upgrade?
Memory compatibility depends on the socket generation. AM4 and LGA1200 platforms use DDR4, while AM5 requires DDR5. Intel LGA1700 motherboards come in separate DDR4 or DDR5 variants. Browse our dedicated RAM memory collection to match your system.
Q
Why is thermal paste essential during CPU installation?
Microscopic imperfections on the CPU heat spreader and cooler base prevent 100% direct metal contact. Quality thermal paste fills these gaps to ensure optimal heat transfer, keeping operational temperatures low and avoiding thermal throttling.
Q
Do I need to update my BIOS before installing a pre-owned CPU?
Yes. A BIOS update is essential on many motherboards for an upgraded CPU to function. If you are installing a newer generation processor on an existing motherboard (such as a Ryzen 5000 series chip on a B450 board, or a 13th Gen Intel chip on a Z690 board), update your BIOS to a supported version using your current CPU or a BIOS Flashback feature prior to swapping out the chip.
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