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AMD Phenom II X4 B99

Benchmarks for the AMD Phenom II X4 B99 can be found below. Release dates, price and performance comparisons are also listed when available. This is made using thousands of PerformanceTest benchmark results and is updated daily.

  • The first graph shows the relative performance of the CPU compared to the 10 other common (single) CPUs in terms of PassMark CPU Mark.
  • The 2nd graph shows the value for money, in terms of the CPUMark per dollar.
  • The pricing history data shows the price for a single Processor. For multiple Processors, multiply the price shown by the number of CPUs.

Is the AMD Phenom II X4 B99 Good for Gaming?

This is a fairly old CPU that is no longer competitive with newer CPUs. [More ...]


AMD Phenom II X4 B99

Description:

Class: Desktop

Socket:

Clockspeed: 3.3 GHz

Cores: 4 Threads: 4

Typical TDP: 95 W

Cache per CPU Package:
L1 Instruction Cache: 4 x 64 KB
L1 Data Cache: 4 x 64 KB
L2 Cache: 4 x 512 KB
L3 Cache: 6 MB

Other names: AMD Phenom(tm) II X4 B99 Processor

CPU First Seen on Charts: Q4 2011

CPUmark/$Price: NA

Overall Rank:
3248th fastest in multithreading out of 5778 CPUs
2948th fastest in single threading out of 5778 CPUs
897th fastest in out of 1554 Desktop CPUs

Last Price Change: NA

Average CPU Mark rating
Multithread Rating
2536
Single Thread Rating
1377

Samples: 13*
*Margin for error: Medium



PerformanceTest V9
CPU Mark: 3,992
Thread: 1,157

CPU Test Suite Average Results for AMD Phenom II X4 B99

Integer Math7,254 MOps/Sec
Floating Point Math5,644 MOps/Sec
Find Prime Numbers16 Million Primes/Sec
Random String Sorting7,678 Thousand Strings/Sec
Data Encryption615.9 MBytes/Sec
Data Compression59,906 KBytes/Sec
Physics232 Frames/Sec
Extended Instructions1,329 Million Matrices/Sec
Single Thread1,377 MOps/Sec
From submitted results to PerformanceTest V10 as of 10th of February 2026.

CPU Mark Distribution for AMD Phenom II X4 B99

Submitted Baseline Distribution Graph as of 6th of February 2026


Not Enough Data from Current Version of PerformanceTest to Create Distribution Graph.

From submitted results since PerformanceTest V10 as of 6th of February 2026.

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CPU Mark Relative to Top 10 Common Desktop CPUs
As of 10th of February 2026 - Higher results represent better performance
Processor Average CPU Mark
Intel Core i9-14900K
 58,454
Intel Core i9-13900K
 58,301
AMD Ryzen 9 5900X
 38,943
Apple M4 10 Core
 23,699
AMD Ryzen 5 5600X
 21,844
Intel Core i5-12400F
 19,578
Intel Core i9-9900K @ 3.60GHz
 18,091
AMD Ryzen 5 3600
 17,679
Apple M2 8 Core 3500 MHz
 15,639
Apple M1 8 Core 3200 MHz
 14,133
AMD Phenom II X4 B99
 2,536
CPU Value (CPU Mark / $Price )
As of 10th of February 2026 - Higher results represent better value
Processor CPU Mark / $Price
AMD Ryzen 5 5600X
 136.53
AMD Ryzen 9 5900X
 130.24
AMD Ryzen 5 3600
 126.29
Intel Core i9-14900K
 124.64
Intel Core i5-12400F
 122.37
Intel Core i9-13900K
 107.97
Intel Core i9-9900K @ 3.60GHz
 60.62
AMD Phenom II X4 B99
 NA
Apple M1 8 Core 3200 MHz
 NA
Apple M2 8 Core 3500 MHz
 NA
Apple M4 10 Core
 NA
Single Thread Rating
As of 10th of February 2026 - Higher results represent better performance
Processor Average Thread Rating
Intel Core i9-14900K
 4,694
Intel Core i9-13900K
 4,600
Apple M4 10 Core
 4,516
Apple M2 8 Core 3500 MHz
 3,886
Apple M1 8 Core 3200 MHz
 3,676
Intel Core i5-12400F
 3,489
AMD Ryzen 9 5900X
 3,467
AMD Ryzen 5 5600X
 3,365
Intel Core i9-9900K @ 3.60GHz
 2,914
AMD Ryzen 5 3600
 2,560
AMD Phenom II X4 B99
 1,377
Last 3 Baselines for AMD Phenom II X4 B99
Most recent listed first
Baseline CPU Mark
BL1462724 - Oct 30 2021
2585
BL1285935 - Aug 24 2020
2592
BL1270772 - Jul 21 2020
2438
Additional baselines can be obtained using Windows version of PerformanceTest's Manage Baselines feature.
Popular comparisons for AMD Phenom II X4 B99
As of 10th of February 2026 - Higher results represent better performance
Processor Average CPU Mark
AMD Phenom II X4 B99
 2,536
AMD FX-4100 Quad-Core vs AMD Phenom II X4 B99
 2,627 (+3.6%)
Intel Core i3-3240 @ 3.40GHz vs AMD Phenom II X4 B99
 2,354 (-7.2%)
AMD FX-4170 Quad-Core vs AMD Phenom II X4 B99
 3,124 (+23.2%)
AMD A10-5800K APU vs AMD Phenom II X4 B99
 2,968 (+17.0%)
AMD Phenom II X4 980 vs AMD Phenom II X4 B99
 2,880 (+13.6%)
AMD A8-5600K APU vs AMD Phenom II X4 B99
 2,861 (+12.8%)
AMD A8-5500 APU vs AMD Phenom II X4 B99
 2,615 (+3.1%)
Intel Core i5-2390T @ 2.70GHz vs AMD Phenom II X4 B99
 2,491 (-1.8%)
AMD Phenom II X4 850 vs AMD Phenom II X4 B99
 2,462 (-2.9%)
AMD Athlon II X4 651 Quad-Core vs AMD Phenom II X4 B99
 2,433 (-4.1%)
AMD A8-3850 APU vs AMD Phenom II X4 B99
 2,421 (-4.5%)
AMD A8-3870K APU vs AMD Phenom II X4 B99
 2,369 (-6.6%)

Is the AMD Phenom II X4 B99 Good for Gaming?
As of 10th of February 2026 - Higher results represent better performance
Processor Relative Gaming Score
AMD Ryzen 9 9950X3D2
 14,501
AMD Ryzen 9 9900X3D
 12,423
AMD Ryzen 7 9800X3D
 12,123
AMD Ryzen 9 9950X3D
 11,258
AMD Ryzen 9 7900X3D
 10,793
Intel Core Ultra 7 270K Plus
 10,695
AMD Ryzen 5 7600X3D
 10,516
Intel Core Ultra 9 285K
 10,384
AMD Ryzen 7 7800X3D
 10,259
AMD Ryzen 5 7500X3D
 10,188
AMD Ryzen 9 7950X3D
 9,778
AMD Ryzen 9 9955HX3D
 9,770
AMD Phenom II X4 B99
 384