Phenom II X4 B50 Benchmarks & Performance Report

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Phenom II X4 B50 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,505 Rank: 1284

Rank	Name	Score	Visual
1280	Xeon W3520	4,508	+0.1%
1281	Xeon X3430	4,508	+0.1%
1282	Core i7-2630QM	4,506	+0%
1283	Phenom II X6 1090T	4,506	+0%
1284	Phenom II X4 B50	4,505
1285	PRO A6-9500	4,505	+0%
1286	Xeon E3-1260L	4,503	+-0%
1287	Celeron 4305U	4,503	+-0%
1288	FX-6120	4,501	-0.1%
1289	Xeon E3-1220	4,501	-0.1%

View full ranking →

Multicore Score

Multicore performance score for Phenom II X4 B50 based on multi-threaded benchmark results.

4,591 Rank: 1101

Rank	Name	Score	Visual
1097	Pentium Gold G5420	4,593	+0%
1098	Core i3-8121U	4,593	+0%
1099	Celeron B815	4,592	+0%
1100	A10-9700	4,592	+0%
1101	Phenom II X4 B50	4,591
1102	Athlon Gold 7220U	4,591	+0%
1103	Intel Core i5-6198DU	4,590	+-0%
1104	Core i7-6600U	4,589	+-0%
1105	Core i3-7100H	4,588	-0.1%
1106	Core i5-3330	4,588	-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Phenom II X4 B50 based on single-threaded benchmark results.

4,447 Rank: 1345

Rank	Name	Score	Visual
1341	A10-7850K	4,450	+0.1%
1342	Core i7-960	4,449	+0%
1343	Celeron G1620	4,448	+0%
1344	Xeon X5560	4,447	+0%
1345	Phenom II X4 B50	4,447
1346	Xeon X3450	4,444	-0.1%
1347	Core i3-2120T	4,444	-0.1%
1348	A10-7860K	4,439	-0.2%
1349	Pentium 4415U	4,439	-0.2%
1350	Core i7-2677M	4,435	-0.3%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Phenom II X4 B50 based on integer math, floating point math, and prime number computation benchmarks.

4,533 Rank: 1279

Rank	Name	Score	Visual
1275	Core i3-6157U	4,533	+0%
1276	Celeron G4900	4,533	+0%
1277	Core i5-3210M	4,533	+0%
1278	Core i7-4650U	4,533	+0%
1279	Phenom II X4 B50	4,533
1280	Core i7-3667U	4,533	+0%
1281	Core i5-5200U	4,533	+0%
1282	Phenom II X4 960T	4,533	+0%
1283	Xeon E5506	4,533	+0%
1284	Core i5-5350U	4,533	+0%

View full ranking →

Data Processing

Aggregated score for Phenom II X4 B50 based on data encryption, data compression, and string sorting benchmarks.

4,544 Rank: 1081

Rank	Name	Score	Visual
1077	A12-9800E	4,545	+0%
1078	Phenom II X4 B97	4,545	+0%
1079	Core i3-7100T	4,544	+0%
1080	Core i3-4160	4,544	+0%
1081	Phenom II X4 B50	4,544
1082	Phenom II X4 840	4,544	+0%
1083	Core i3-4340	4,543	+-0%
1084	A10-6790K	4,543	+-0%
1085	A8-7670K	4,543	+-0%
1086	Athlon II X4 555	4,543	+-0%

View full ranking →

Physics & Compute

Aggregated score for Phenom II X4 B50 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,515 Rank: 1299

Rank	Name	Score	Visual
1295	Core i7-2677M	4,515	+0%
1296	Pentium G3260	4,515	+0%
1297	Pentium G3420	4,515	+0%
1298	Phenom II X4 B55	4,515	+0%
1299	Phenom II X4 B50	4,515
1300	Xeon E5506	4,515	+0%
1301	Core M-5Y71	4,515	+0%
1302	Core M-5Y31	4,515	+0%
1303	Core i5-680	4,515	+0%
1304	Phenom II X4 B97	4,515	+0%

View full ranking →

Phenom II X4 B50 Details

The Phenom II X4 B50 is designed for users seeking a balance of performance and power efficiency in a mainstream desktop platform, particularly those who require integrated graphics without the need for a discrete GPU. As of March 2026, this processor is considered an older design, having been released during a time when 45 nm process technology was standard and quad-core performance was a key differentiator in the mid-range market. Despite its age, the Phenom II X4 B50 still holds relevance in legacy systems and budget builds where cost-effectiveness and compatibility are priorities.

Built on AMD's K10 microarchitecture, the Phenom II X4 B50 features four cores and four threads, operating at a base frequency of 3.16 GHz with a turbo frequency of 3.3 GHz. It uses the LGA771 socket and is manufactured on a 45 nm process, which contributes to its 120 W TDP. This processor supports DDR3 memory up to 1600 MHz and can handle up to 32 GB of system memory across two channels, with a maximum memory bandwidth of 25.6 GB/s. Its PCIe 2.0 support includes configurations such as 1x16, 2x8, 1x8, and 2x4 lanes, enabling flexibility for expansion cards.

The Phenom II X4 B50 includes integrated Intel HD Graphics 4000, which is unusual given that AMD typically designs its own GPUs. This GPU operates at a base frequency of 350 MHz and can burst up to 1200 MHz, supporting up to three displays and offering decent multimedia capabilities for office and light multimedia tasks. However, the lack of native ECC memory support and limited modern instruction set features—such as AVX2 and AES-NI—mean it does not keep pace with current-generation processors in encryption or vectorized workloads.

In benchmark testing, the Phenom II X4 B50 achieves an overall score of 4505, ranking #1284 out of 2060 processors, with a single-core score of 4447 (#1344) and a multicore score of 4591 (#1101). These results place it below many modern CPUs but still ahead of some older dual-core and low-power processors. It competes closely with models like the Core i3-8121U and Celeron B815, which have similar scores, though the Phenom II X4 B50 maintains a slight edge in single-threaded performance due to its higher base frequency.

The processor supports a range of modern technologies, including SSE4.1, SSE4.2, x86-64, Hyper-Threading (though it lacks true SMT), EIST, and Intel vPro, though the inclusion of Intel-specific features like TXT and VT-d is puzzling given AMD's design. These capabilities make it suitable for basic virtualization and enterprise environments, though its age limits its long-term viability.

Overall, the Phenom II X4 B50 is best suited for users upgrading from older systems, running general productivity software, or operating in environments where integrated graphics are sufficient. While it no longer competes with top-tier CPUs, it remains a functional option in the lower end of the performance spectrum, especially in systems where cost and compatibility outweigh the need for cutting-edge performance.