This is hands-down one of the best value CPU upgrades you can make to your AMD AM5 gaming rig
Under $275 for a genuine 12-core, 24-thread Ryzen chip is a win.
For anyone rocking an entry level AM5 gaming PC, the Ryzen 9 7900X is going to be a great-value upgrade for their system. With 12 Zen 4 cores and 24 threads of processing grunt, this is a serious desktop CPU for genuinely not a lot of cash.
Key specs: 12 Cores | 24 threads | 5.6 clock speed | 76 MB cache | 170 W TDP
Finding a worthwhile upgrade for your existing gaming PC can be an expensive business. If you want more storage space for the next big game that will cost you a pretty penny, if you want more memory AI has boned you on that front, and if you want a shiny new GPU prices have already shot up and show no signs of coming back down.
But processors, while they too are being courted by AI datacenters, are pretty safe in their desktop consumer guise. And that means there are deals to be had on CPUs. The best I've seen in a long while is this, the Ryzen 9 7900X for just $275 at Walmart today.
Weirdly, it's sold and shipped via Walmart by Newegg. Which currently has the same chip on sale for $316. I'm not going to pretend to understand such shenanigans in the retail business, I'm just going to stay quiet and be happy that we've got such a quality chip at such a good price.
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It's worth noting that this chip is the 'X' version and that means it's the full-fat, 170 W version as opposed to the Ryzen 9 7900, which is a good 65 W processor. Just not quite as good as the 7900X and strangely a lot more expensive right now. But the thing to note here is that, thanks to AMD's excellent Eco Mode, you don't have to run your beefy ol' Ryzen 9 7900X at the full power all the time if you want to save on power and the loudness.
I personally run its larger sibling, the Ryzen 9 7950X in Eco Mode pretty much permanently. It's more than capable of keeping my powerful GPU fed with frames at that level, and won't deafen me because my CPU cooler decides to go HAM.
The equivalent Zen 5 chip, the Ryzen 9 9900X is $329 at Walmart at the moment, but doesn't give you a huge amount extra over this Zen 4 CPU for your money.
1080p gaming performance
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 110 Avg FPS, 80 1% Low FPS |
| AMD Ryzen 9 9900X | 115 Avg FPS, 84 1% Low FPS |
| AMD Ryzen 7 7800X3D | 120 Avg FPS, 88 1% Low FPS |
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 96 Avg FPS, 64 1% Low FPS |
| AMD Ryzen 9 9900X | 103 Avg FPS, 67 1% Low FPS |
| AMD Ryzen 7 7800X3D | 118 Avg FPS, 77 1% Low FPS |
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 72 Avg FPS, 39 1% Low FPS |
| AMD Ryzen 9 9900X | 82 Avg FPS, 44 1% Low FPS |
| AMD Ryzen 7 7800X3D | 89 Avg FPS, 49 1% Low FPS |
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 146 Avg FPS, 77 1% Low FPS |
| AMD Ryzen 9 9900X | 147 Avg FPS, 77 1% Low FPS |
| AMD Ryzen 7 7800X3D | 150 Avg FPS, 86 1% Low FPS |
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 158 Avg FPS, 111 1% Low FPS |
| AMD Ryzen 9 9900X | 167 Avg FPS, 134 1% Low FPS |
| AMD Ryzen 7 7800X3D | 159 Avg FPS, 127 1% Low FPS |
CPU performance
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 118 Single-core index score, 1589 Multi-core index score |
| AMD Ryzen 9 9900X | 136 Single-core index score, 1805 Multi-core index score |
| AMD Ryzen 7 7800X3D | 113 Single-core index score, 1082 Multi-core index score |
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 129 |
| AMD Ryzen 9 9900X | 149 |
| AMD Ryzen 7 7800X3D | 81 |
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 151 Compressing (GIPS), 195 Decompressing (GIPS) |
| AMD Ryzen 9 9900X | 160 Compressing (GIPS), 206 Decompressing (GIPS) |
| AMD Ryzen 7 7800X3D | 118 Compressing (GIPS), 128 Decompressing (GIPS) |
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 103 |
| AMD Ryzen 9 9900X | 112 |
| AMD Ryzen 7 7800X3D | 76 |
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 66 |
| AMD Ryzen 9 9900X | 62 |
| AMD Ryzen 7 7800X3D | 64 |
| Product | Value |
|---|---|
| AMD Ryzen 9 7900X | 115 |
| AMD Ryzen 9 9900X | 123 |
| AMD Ryzen 7 7800X3D | 69 |
It's an AM5 chip, so if you're currently on a Ryzen 5000-series processor that will mean a platform upgrade and potentially a new DDR5 purchase (eep), but if your current gaming PC is rocking a six- or eight-core Ryzen 7000-series processor this will deliver a healthy in-place upgrade without breaking the bank. Too much.
If you're willing to spend more, and specifically value gaming performance over everything else (this is PC Gamer, after all) then I can also recommend the Ryzen 7 7800X3D for $370 at Walmart. That's certainly not the cheapest it's ever been, and if you're talking about raw processing grunt the 7900X will outperform its eight Zen 4 cores, but in games it really will deliver. But is over $100 more, so that 12-core chip really does represent the value play here.
👉See all Walmart's CPU deals👈

1. Best overall:
AMD Ryzen 7 9800X3D
2. Best budget:
AMD Ryzen 5 5500
3. Best mid-range:
Intel Core Ultra 5 250K Plus
4. Best high-end:
AMD Ryzen 9 9950X3D
5. Best AM4 upgrade:
AMD Ryzen 7 5700X3D
6. Best CPU graphics:
AMD Ryzen 7 8700G
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Dave has been gaming since the days of Zaxxon and Lady Bug on the Colecovision, and code books for the Commodore Vic 20 (Death Race 2000!). He built his first gaming PC at the tender age of 16, and finally finished bug-fixing the Cyrix-based system around a year later. When he dropped it out of the window. He first started writing for Official PlayStation Magazine and Xbox World many decades ago, then moved onto PC Format full-time, then PC Gamer, TechRadar, and T3 among others. Now he's back, writing about the nightmarish graphics card market, CPUs with more cores than sense, gaming laptops hotter than the sun, and SSDs more capacious than a Cybertruck.
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