AMD

AMD Phenom X4 9850 (125W)

AMD processor specifications and benchmark scores

4
Cores
4
Threads
GHz Boost
125W
TDP
🖥️Integrated GPU

AMD Phenom X4 9850 (125W) Specifications

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Phenom X4 9850 (125W) Core Configuration

Processing cores and threading

The AMD Phenom X4 9850 (125W) features 4 physical cores and 4 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
4
Threads
4
SMP CPUs
1
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Phenom X4 9850 (125W) Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Phenom X4 9850 (125W) benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Phenom X4 9850 (125W) by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
2.5 GHz
Boost Clock
N/A
Multiplier
12.5x
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AMD's Phenom X4 9850 (125W) Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Phenom X4 9850 (125W) processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Phenom X4 9850 (125W)'s cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
128 KB (per core)
L2 Cache
512 KB (per core)
L3 Cache
2 MB (shared)
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K10 Architecture & Process

Manufacturing and design details

The AMD Phenom X4 9850 (125W) is built on AMD's 65 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in Phenom X4 9850 (125W) incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
K10
Codename
Agena
Process Node
65 nm
Transistors
450 million
Die Size
285 mm²
Generation
Phenom X4 (Agena)
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K10 Instruction Set Features

Supported CPU instructions and extensions

The Phenom X4 9850 (125W) by AMD supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
SSE3
SSE4A
AMD64
AMD-V
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Phenom X4 9850 (125W) Power & Thermal

TDP and power specifications

The AMD Phenom X4 9850 (125W) has a TDP (Thermal Design Power) of 125W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
125W
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AMD Socket AM2+ Platform & Socket

Compatibility information

The Phenom X4 9850 (125W) uses the AMD Socket AM2+ socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
AMD Socket AM2+
PCIe
Gen 2
Package
µPGA
DDR5

AMD Socket AM2+ Memory Support

RAM compatibility and speeds

Memory support specifications for the Phenom X4 9850 (125W) define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Phenom X4 9850 (125W) determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Bus
Dual-channel
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AMD's Phenom X4 9850 (125W) Integrated Graphics

Built-in GPU specifications

The AMD Phenom X4 9850 (125W) includes integrated graphics, eliminating the need for a dedicated GPU in basic computing scenarios. Integrated graphics are ideal for office productivity, video playback, and light gaming. While not designed for demanding GPU benchmarks, the iGPU in the Phenom X4 9850 (125W) provides hardware video encoding and decoding capabilities. This makes the processor suitable for compact builds, HTPCs, and systems where power efficiency is prioritized over gaming performance.

iGPU
On certain motherboards (Chipset feature)
Graphics Model
On certain motherboards (Chipset feature)
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Phenom X4 9850 (125W) Product Information

Release and pricing details

The AMD Phenom X4 9850 (125W) is manufactured by AMD and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Phenom X4 9850 (125W) by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Jul 2008
Market
Desktop
Status
End-of-life
Part Number
HD9850XAJ4BGH

Phenom X4 9850 (125W) Benchmark Scores

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No benchmark data available for this CPU.

About AMD Phenom X4 9850 (125W)

The AMD AMD Phenom X4 9850 (125W) features a quad-core design, providing four physical processing units capable of handling parallel workloads efficiently. With each core operating independently, the processor leverages a fully simultaneous multithreading architecture, enabling four threads to be executed concurrently without hyperthreading technology. This configuration allows the CPU to excel in multi-threaded applications, such as digital content creation and scientific simulations, where multiple tasks can be processed simultaneously. The cores are built on a 65 nm manufacturing process, which, at the time of release, balanced power consumption with performance. Despite its relatively high TDP of 125W, this chip was designed to deliver substantial computational power, trading off energy efficiency for raw processing capability. The AMD AMD Phenom X4 9850 (125W)’s core architecture was optimized for desktop environments that prioritized performance over energy savings, making it suitable for high-performance workstations and gaming rigs. The processor’s base clock speed of 2.50 GHz offers a solid performance foundation for many users, particularly in applications that are more sensitive to single-thread performance. While it does not support turbo or dynamic frequency scaling, its stable 2.50 GHz frequency, combined with a 2 MB shared L3 cache, helps improve data access speeds for intensive workloads. The shared cache architecture enables efficient data sharing across cores, minimizing latency and reducing bottlenecks in cache memory, which enhances overall responsiveness. When considering the AMD AMD Phenom X4 9850 (125W), it is important to recognize that its power draw reflects a design geared toward sustained high-performance operation. The memory subsystem, supporting DDR2 RAM, was standard for its era and suited for typical desktop workloads, though it doesn’t emphasize high-bandwidth or low-latency memory configurations. Energy efficiency is not the primary focus of the AMD AMD Phenom X4 9850 (125W), which aligns with its desktop-oriented design. Its 125W TDP suggests significant thermal output requiring adequate cooling solutions, particularly in overclocking scenarios or extended heavy workloads. This processor was aimed at users demanding computational throughput rather than low power consumption. In terms of workload profiling, the AMD AMD Phenom X4 9850 (125W) shines in applications that are heavily multi-threaded, such as video editing, 3D rendering, and scientific modeling, where multiple cores can be fully utilized. Its performance in single-threaded tasks, while competent, is not exceptional, making it less suitable for lightly threaded or latency-sensitive tasks such as real-time audio/video editing or web browsing. Overall, this processor from AMD, known for its robust multi-core capability, remains a reliable choice when paired with compatible motherboards and memory for intensive productivity. While no specific benchmark data is available for the AMD AMD Phenom X4 9850 (125W), its architectural design offers insights into expected performance characteristics. The quad-core setup paired with a moderate clock speed was designed to improve multi-core performance relative to older single-threaded CPUs, with multi-threaded benchmarks expected to show significant gains in relevant tasks. However, given its release date and technological constraints, it is outperformed by more recent offerings with higher clock speeds, better power efficiency, and advanced features. For workloads that depend heavily on core count and multi-threading, the AMD AMD Phenom X4 9850 (125W) provides a balanced approach. Its place in the performance hierarchy suggests that it is well-suited for users with legacy systems or those who require a cost-effective solution that can still handle demanding multi-threaded applications amidst contemporary hardware. At its core, this AMD model remains a testament to the company's approach to delivering multi-core processing at an accessible price point during its era.

The Intel Equivalent of Phenom X4 9850 (125W)

Looking for a similar processor from Intel? The Intel Core i5-750 offers comparable performance and features in the Intel lineup.

Intel Core i5-750

Intel • 4 Cores

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