Core i9-12900K vs Ryzen 9 7900
Compare the Core i9-12900K and Ryzen 9 7900 on real gaming and productivity benchmarks, full specifications, live retailer prices and performance-per-dollar, then jump straight to the cheapest in-stock option.
The short answer
The Ryzen 9 7900 is the better value, though the Core i9-12900K is the faster gaming chip.
- Gaming performance is effectively a wash at 1080p (index 67.4 vs 67.4); at 1440p and 4K the GPU sets the frame rate, so the gap shrinks further.
- Ryzen 9 7900 is roughly 9% faster in multi-core work, an edge in rendering, encoding and compiling.
- Ryzen 9 7900 is the cheaper chip right now, by roughly 5%.
- Ryzen 9 7900 delivers about 5% more gaming performance per dollar.
- Core i9-12900K has more cores (16C/24T vs 12C/24T), which helps in heavily threaded workloads.
- Ryzen 9 7900 has a lower TDP (65W vs 125W), so it runs cooler and is easier to cool quietly.
Gaming performance
CPU-bound gaming score: a geometric mean of in-game frame rates at 1080p, normalized so the fastest gaming CPU we track = 100.
Does the CPU matter at 1440p or 4K? Much less. At higher resolutions the graphics card sets the frame rate, so the gap between two CPUs shrinks — often to nothing. The 1080p figure above is the demanding case, where the CPU is stressed and the difference actually shows.
Performance per dollar
Gaming index divided by the current lowest price — higher is better value. This moves with the market as prices change day to day.
The Ryzen 9 7900 gives about 5% more gaming performance per dollar at today’s prices.
Full platform cost
A CPU’s real cost includes the cheapest in-stock motherboard that can run it and, when the chip doesn’t bundle one, a cooler that can handle it. Here is the lowest-priced complete platform for each, and the gaming performance you get per platform dollar.
- Platform total
- $597.45
- Platform total
- $489.99
Cheapest complete platform (lower is better)
Gaming performance per platform dollar (higher is better)
Specs head-to-head
Productivity & compute
Efficiency
Gaming performance per watt (gaming index per 100W of TDP) — higher means more frames for the heat and power.
Where to buy
Ryzen 9 7900from $410.00
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| Amazon | In stock | $410.00 |  |
Core i9-12900Kfrom $429.97
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| Amazon | In stock | $429.97 | |
| Newegg | In stock | $429.99 |  |
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