Phenom X4 9850

Details and Benchmarks for AMD Phenom X4 9850

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 X4 9850 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,038 Rank: 1853
Rank Name Score Visual
1849 Intel Core i5-430M 4,043
+0.1%
1850 Intel Celeron P4600 4,040
+0%
1851 Celeron 2980U 4,040
+0%
1852 Pentium 997 4,038
+0%
1853 Phenom X4 9850 4,038
1854 Core 2 Duo T5850 4,036
+-0%
1855 Atom C3538 4,034
-0.1%
1856 Athlon II P360 4,034
-0.1%
1857 Celeron J3455 4,033
-0.1%
1858 A6-7000 4,032
-0.1%

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Multicore Score

Multicore performance score for Phenom X4 9850 based on multi-threaded benchmark results.

4,333 Rank: 1638
Rank Name Score Visual
1634 A10-4655M 4,333
+0%
1635 A4-7210 4,333
+0%
1636 Pentium J2900 4,333
+0%
1637 Pentium G640T 4,333
+0%
1638 Phenom X4 9850 4,333
1639 Pentium G2020T 4,333
+0%
1640 Celeron J4005 4,332
+-0%
1641 Core M-5Y10a 4,332
+-0%
1642 A6-3410MX 4,332
+-0%
1643 E2-9010 4,332
+-0%

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Singlecore Score

Single-core performance score for Phenom X4 9850 based on single-threaded benchmark results.

3,841 Rank: 1863
Rank Name Score Visual
1859 Celeron 2980U 3,854
+0.3%
1860 Pentium J4205 3,849
+0.2%
1861 Celeron N3350 3,848
+0.2%
1862 Celeron E1500 3,848
+0.2%
1863 Phenom X4 9850 3,841
1864 Celeron B820 3,836
-0.1%
1865 Athlon 64 X2 4800+ 3,834
-0.2%
1866 Pentium 997 3,833
-0.2%
1867 Intel Pentium P6100 3,831
-0.3%
1868 Pentium N3540 3,830
-0.3%

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Workload Scores

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

Number Crunching

Aggregated score for Phenom X4 9850 based on integer math, floating point math, and prime number computation benchmarks.

-- Rank: --

Number Crunching score not yet available.

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Data Processing

Aggregated score for Phenom X4 9850 based on data encryption, data compression, and string sorting benchmarks.

-- Rank: --

Data Processing score not yet available.

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Physics & Compute

Aggregated score for Phenom X4 9850 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

-- Rank: --

Physics & Compute score not yet available.

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Phenom X4 9850 Details

Ranking #1852 of 2060 in overall performance, the AMD Phenom X4 9850 sits near the lower end of the modern CPU hierarchy, a reflection of its age and design. Launched in July 2008 as part of AMD’s Agena-based Phenom X4 lineup, this processor is now over 15 years old, placing it firmly in legacy territory. Despite its outdated status, it remains a notable example of AMD’s early efforts in multi-core desktop computing, built on a 65 nm process with a 285 mm² die and 450 million transistors. With a base clock of 2.5 GHz and a locked 12.5x multiplier, the Phenom X4 9850 offers modest single-threaded performance, particularly when compared to today’s high-end processors. Its 4-core, 4-thread design, combined with a 1.907 MiB L3 cache and 0.488 MiB L2 cache, provides a balanced but limited foundation for the workloads of its era.

The Phenom X4 9850 operates on a dual-channel memory architecture and supports DDR2 memory, a standard at the time but now obsolete. Its 95 W TDP, while high for a four-core design, was typical for that generation and necessitated adequate cooling, especially under load. The processor uses the µPGA socket and is compatible with Socket AM2+, making it compatible with a range of motherboards from the late 2000s. Though it lacks integrated graphics, some motherboards with compatible chipsets offered this capability, allowing for basic display output without a discrete GPU.

In terms of benchmark performance, the Phenom X4 9850 achieves an overall score of 4038, a single-core score of 3841, and a multicore score of 4333. These results place it behind nearly all modern CPUs and even behind many mid-2010s processors. While its multicore performance ranks slightly higher than its single-core score, the gap is narrow, indicating that the processor’s performance is more evenly distributed across cores than it is impressive in any single category. The performance is comparable to other CPUs from the same era, such as the Pentium E6700 and Athlon 5350, which also scored around 4334.

Despite its age, the Phenom X4 9850 remains a viable option for legacy systems, retro builds, or educational purposes. Its support for AMD-V virtualization and various instruction sets—including MMX, SSE, SSE2, SSE3, SSE4a, and 3DNow!—adds to its versatility for older software. However, its high power consumption and limited performance make it unsuitable for modern applications, gaming, or productivity tasks. As of March 2026, the Phenom X4 9850 serves as a historical artifact, a snapshot of a time when multi-core processors were becoming mainstream but still far from the efficiency and power of today’s designs.
Frequently Compared

Intel Core i3-4370 91 views

Intel Core m7-6Y75 91 views

Intel Intel Celeron N3010 88 views

AMD Phenom II X2 560 83 views

AMD Ryzen 5 3500X 81 views

Intel Core 2 Duo E8600 78 views

Intel Xeon W3505 78 views

AMD Ryzen 5 3600 76 views

AMD EPYC 7502P 71 views

AMD Ryzen 9 PRO 3900 69 views

AMD Phenom X4 9850

Main Specifications

Designer: AMD
Name: Phenom X4 9850
Cores: 4
Threads: 4
Base Frequency: 2500 MHz
Clock Multiplier: 12.5xx (locked)
Core Name: Agena
Socket: Socket AM2+
Package: µPGA
Target Segment: Desktop
TDP: 95 W

Cache Specifications

L1 Cache: 124.928 KiB
L2 Cache: 0.488 MiB
L3 Cache: 1.907 MiB

Memory Specifications

Physical Specifications

Process: 65 nm
Die Area: 285 mm²
Transistor Count: 0.00 billion

CPU Features

MMX SSE SSE2 SSE3 SSE4a AMD-V 3DNow!
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