The Core i9-11900KF is a clear winner – it's at least 2x faster gaming CPU than the Phenom II X4 820 and it's also a slightly better value for money, as it's only $271.98 more expensive!
Advantages of the Core i9-11900KF
- At least 2x faster CPU for gaming
- A slightly better value for money for gaming
- Can execute more multi-threaded tasks simultaneously – 16 vs 4 threads
Advantages of the Phenom II X4 820
- Up to 85% cheaper – $48.02 vs $320.00
- Consumes up to 24% less energy – 95 vs 125 Watts
- Has an integrated GPU, while the Core i9-11900KF cannot run games without a dedicated GPU
Core i9-11900KF vs Phenom II X4 820 for Gaming
The CPU's performance in selected game and settings
Core i9-11900KF
Mar 16th, 2021
Average FPS
206
100%
Min 1% FPS
135
100%
Price, $
$320
15%
Value, $/FPS
$1.55/FPS
19%
Phenom II X4 820
Sep 1st, 2009
Average FPS
164
80%
Min 1% FPS
111
82%
Price, $
$48.02
100%
Value, $/FPS
$0.29/FPS
100%
Core i9-11900KF vs Phenom II X4 820 in My Games
The FPS you'll get in saved games
The FPS you'll get in saved games
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Synthetic Benchmarks
The Core i9-11900KF vs Phenom II X4 820 in synthetic CPU benchmarks
Performance Specifications
The Core i9-11900KF vs Phenom II X4 820 in core CPU performance specifications
Core i9-11900KF
Mar 16th, 2021
Cores
8-core
100%
L3 Cache
16 MB
100%
Base Frequency
3.5 GHz
100%
Turbo Frequency
5.3 GHz
100%
Max. DDR4 RAM Speed
3200 MHz
100%
Phenom II X4 820
Sep 1st, 2009
Cores
4-core
50%
L3 Cache
4 MB
25%
Base Frequency
2.8 GHz
80%
Turbo Frequency
GHz
Max. DDR3 RAM Speed
1333 MHz
42%
Specifications
Comparison of all specifications
Core i9-11900KF | SpecificationsComparison of all specifications | Phenom II X4 820 |
|---|---|---|
| General | ||
Mar 16th, 2021 | Release Date | Sep 1st, 2009 |
| $513.00 | MSRP | Not Available |
Desktop | Segment | Desktop |
| Intel Socket 1200 | Socket | AMD Socket AM3 |
| Rocket Lake | Codename | Deneb |
| 125 W | Power Consumption | 95 W |
| Performance | ||
8 | Cores | 4 |
16 | Threads | 4 |
3.5 GHz | Base Frequency | 2.8 GHz |
| 5.3 GHz | Turbo Frequency | Non-Turbo |
16 MB | L3 Cache | 4 MB |
| Other Features | ||
| DDR4 @ 3200 MHz | RAM | DDR3 @ 1333 MHz |
| No | Integrated Graphics | On certain motherboards (Chipset feature) |
Yes | Overclockable | No |
