Phenom II X4 945

Details and Benchmarks for AMD Phenom II X4 945

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

4,251 Rank: 1594
Rank Name Score Visual
1590 Celeron J4025 4,253
+0%
1591 Core i3 530 4,252
+0%
1592 Celeron G1820TE 4,252
+0%
1593 Xeon 5160 4,252
+0%
1594 Phenom II X4 945 4,251
1595 Phenom 9600 4,251
+0%
1596 Core 2 Duo T9600 4,251
+0%
1597 A4-4020 4,251
+0%
1598 Celeron J4005 4,250
+-0%
1599 Atom C3858 4,250
+-0%

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Multicore Score

Multicore performance score for Phenom II X4 945 based on multi-threaded benchmark results.

4,268 Rank: 1854
Rank Name Score Visual
1850 A6-4400M 4,269
+0%
1851 Celeron N2810 4,269
+0%
1852 Phenom X4 9500 4,269
+0%
1853 Athlon X2 BE-2300 4,269
+0%
1854 Phenom II X4 945 4,268
1855 Core M-5Y51 4,267
+-0%
1856 Pentium T4400 4,267
+-0%
1857 Core 2 Duo P8800 4,266
+-0%
1858 Atom N2800 4,266
+-0%
1859 Core 2 Quad Q9650 4,266
+-0%

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Singlecore Score

Single-core performance score for Phenom II X4 945 based on single-threaded benchmark results.

4,239 Rank: 1539
Rank Name Score Visual
1535 Intel Core i5-580M 4,242
+0.1%
1536 Xeon L5420 4,241
+0%
1537 Intel Core i7-720QM 4,240
+0%
1538 A10-5750M 4,240
+0%
1539 Phenom II X4 945 4,239
1540 Xeon E5-2603 v4 4,238
+-0%
1541 Xeon Bronze 3104 4,238
+-0%
1542 Pentium Silver J5005 4,238
+-0%
1543 Xeon E5462 4,238
+-0%
1544 Phenom II X4 B97 4,236
-0.1%

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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 II X4 945 based on integer math, floating point math, and prime number computation benchmarks.

4,536 Rank: 1257
Rank Name Score Visual
1253 Core i3-2125 4,536
+0%
1254 Pentium G3240 4,536
+0%
1255 Core i5-3230M 4,536
+0%
1256 Core i7-4500U 4,536
+0%
1257 Phenom II X4 945 4,536
1258 Celeron G3950 4,535
+-0%
1259 Atom C3558 4,535
+-0%
1260 Phenom II X4 940 4,535
+-0%
1261 Core i5-680 4,535
+-0%
1262 Core i5-8210Y 4,535
+-0%

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Data Processing

Aggregated score for Phenom II X4 945 based on data encryption, data compression, and string sorting benchmarks.

4,537 Rank: 1126
Rank Name Score Visual
1122 Core i3-4130 4,537
+0%
1123 A10-7700K 4,537
+0%
1124 A8-7600 4,537
+0%
1125 A8-7500 4,537
+0%
1126 Phenom II X4 945 4,537
1127 A8-3850 4,536
+-0%
1128 Core i3-4360T 4,536
+-0%
1129 A10-5800K 4,535
+-0%
1130 A8-7650K 4,535
+-0%
1131 Phenom II X4 940 4,535
+-0%

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Physics & Compute

Aggregated score for Phenom II X4 945 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,512 Rank: 1323
Rank Name Score Visual
1319 Celeron G4900T 4,512
+0%
1320 Celeron G3930T 4,512
+0%
1321 Pentium G3250 4,512
+0%
1322 A8-6500 4,512
+0%
1323 Phenom II X4 945 4,512
1324 Xeon E5507 4,512
+0%
1325 A8-3850 4,512
+0%
1326 Xeon E5440 4,512
+0%
1327 FX-9800P 4,512
+0%
1328 Pentium N6415 4,512
+0%

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Phenom II X4 945 Details

As of March 2026, the AMD Phenom II X4 945 remains a relic of the late 2000s, representing a transitional phase in desktop processor design when multi-core performance was beginning to gain prominence. Though it was launched in April 2009, the Phenom II X4 945 continues to hold a place in legacy systems and enthusiast builds focused on cost-effective upgrades. Based on the Deneb microarchitecture and fabricated on a 45 nm process, the chip features four cores and a 6 MB L3 cache, a significant upgrade over its predecessors. Despite its age, it maintains a modest performance footprint in today's benchmark landscape.

The processor operates at a base clock of 2.26 GHz and can boost to 2.53 GHz under load, though it lacks the sophisticated thermal and power management seen in modern CPUs. With a TDP of 80 W and a socket FCLGA1366, the Phenom II X4 945 was designed for mainstream desktop platforms, particularly those using AMD 700, 800, and 900 series chipsets. It supports DDR3 memory at up to 1333 MT/s in dual-channel mode, with a maximum memory capacity of 144 GB and a bandwidth of 21.3 GB/s. The CPU does not include integrated graphics, but some motherboard chipsets provide basic graphics via onboard solutions.

In terms of features, the Phenom II X4 945 supports a range of instruction sets including SSE, AVX2, AES-NI, and AMD-V, enabling virtualization and multimedia acceleration. However, it lacks Simultaneous Multithreading (SMT), limiting its ability to handle highly parallel workloads efficiently. The processor's performance is reflected in its benchmark scores: a single-core score of 4239, a multicore score of 4268, and an overall score of 4251. These results place it at #1594 of 2060 in overall performance, with the multicore score ranking slightly higher than the single-core, indicating more balanced performance in multi-threaded applications.

When compared to modern processors, the Phenom II X4 945 falls far behind, especially in the top 50 rankings. For instance, the Ryzen Threadripper PRO 9995WX, at #1 overall, delivers over 2.8 times the multicore performance. Even among older CPUs, it trails behind competitors like the Core i3-3240T and A10-5750M in single-core performance. Its closest peers include the Phenom II X4 9500 and Athlon X2 BE-2300, both of which offer similar or slightly better scores.

In conclusion, the Phenom II X4 945 is best suited for legacy systems, retro computing, or budget builds where integrated graphics and basic processing power suffice. While it lacks the efficiency and performance of modern CPUs, its availability and low cost make it a viable option for niche use cases. For users seeking high performance, however, modern alternatives offer vastly superior capabilities.
Frequently Compared

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AMD Phenom II X4 945

Main Specifications

Designer: AMD
Name: Phenom II X4 945
Model Number: E5520
Cores: 4
Threads: 8
Base Frequency: 2260 MHz
Clock Multiplier: 15x (locked)
Core Name: Deneb
Socket: FCLGA1366
Package: µPGA
Target Segment: Desktop
Max CPUs: 2
TDP: 80 W

Cache Specifications

L1 Cache: 124.928 KiB
L2 Cache: 0.488 MiB
L3 Cache: 5.722 MiB

Memory Specifications

Supported Memory Type: DDR3 800/1066
Memory Channels: 3
Maximum Memory: 0 GB
Maximum Bandwidth: 25.6 GB/s
ECC Support: Yes

PCI-Express Specifications

PCIe Revision: 3.0
PCIe Lanes: 12
PCIe Configuration: 1x4, 2x2, 1x2+2x1 and 4x1

Integrated Graphics

GPU: HD Graphics 620
GPU Designer: Intel
GPU Max Frequency: 1000 MHz

Physical Specifications

Process: 45 nm
Die Area: 258 mm²
Transistor Count: 0.00 billion
Manufacturer: GlobalFoundries
Word Size: 64-bit

CPU Features

MMX SSE SSE2 SSE3 SSE4.1 SSE4.2 AVX2 ABM AES x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT SSE4a AMD-V TSX Flex Memory FMA 3DNow!
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