AMD

AMD Phenom X4 9850B

AMD processor specifications and benchmark scores

4
Cores
4
Threads
β€”
GHz Boost
95W
TDP
πŸ–₯️Integrated GPU

AMD Phenom X4 9850B Specifications

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Phenom X4 9850B Core Configuration

Processing cores and threading

The AMD Phenom X4 9850B 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
⏱️

Phenom X4 9850B Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Phenom X4 9850B 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 9850B 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 9850B Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Phenom X4 9850B 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 9850B'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 9850B 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 9850B 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 mmΒ²
Generation
Phenom X4 (Agena)
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K10 Instruction Set Features

Supported CPU instructions and extensions

The Phenom X4 9850B 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 9850B Power & Thermal

TDP and power specifications

The AMD Phenom X4 9850B has a TDP (Thermal Design Power) of 95W, 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
95W
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AMD Socket AM2+ Platform & Socket

Compatibility information

The Phenom X4 9850B 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
Β΅PGA
DDR5

AMD Socket AM2+ Memory Support

RAM compatibility and speeds

Memory support specifications for the Phenom X4 9850B 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 9850B 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 9850B Integrated Graphics

Built-in GPU specifications

The AMD Phenom X4 9850B 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 9850B 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 9850B Product Information

Release and pricing details

The AMD Phenom X4 9850B 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 9850B by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Aug 2008
Market
Desktop
Status
End-of-life
Part Number
HD985BWCJ4BGH

Phenom X4 9850B Benchmark Scores

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No benchmark data available for this CPU.

About AMD Phenom X4 9850B

The AMD Phenom X4 9850B stands as a robust quad-core processor crafted by AMD, embodying the capabilities of the Agena platform, which was a significant advancement during its release in mid-2008. With a base clock speed of 2.50 GHz, this chip delivers steady computing power that suits everyday tasks and light multitasking scenarios. Its 65 nm manufacturing process ensures a balance between performance and energy consumption, while the 95W TDP reflects its thermal demands, making it a fit within systems designed with adequate cooling solutions. The AMD Phenom X4 9850B’s inclusion of four cores, even though not all cores can be utilized on older operating systems, sets a foundation for smooth processing of multiple applications simultaneously. The shared 2 MB L3 cache supports quick data retrieval across all cores, enhancing the efficiency of the processor as it handles demanding workloads without excessive delays. When examining practical performance, the AMD Phenom X4 9850B demonstrates reliability in various real-world applications that don’t push the boundaries of modern computing. For tasks like web browsing, document editing, and media playback, this processor provides a stable experience, ensuring that users can navigate daily routines without noticeable slowdowns. It remains capable of managing several background processes, such as background downloads or updates, alongside primary tasks, making it a solid choice for users prioritizing a dependable workhorse. The AMD Phenom X4 9850B’s design lets it handle a moderate number of intensive tasks if paired with sufficient RAM and storage, but it falls short when compared to contemporary high-performance CPUs in those scenarios. Still, in standard computing environments, this chip offers a balanced mix of speed and energy-saving features, keeping operational costs manageable over time. For workstation settings, the AMD Phenom X4 9850B can serve as a capable centerpiece, especially in applications that benefit from multiple cores but don’t demand cutting-edge processing speeds. It works well in office suites, which often involve running spreadsheets, presentations, and databases, all while handling multiple tabs or applications. This setup suits professionals who need a stable and predictable performance environment without the need for constant optimization or upgrades. However, for more specialized workstations, such as those in video editing or complex engineering simulations, the AMD Phenom X4 9850B may struggle under heavy loads compared to newer, more powerful processors. Its performance in workstation contexts is good but not exceptional, making it a suitable option for users who need a reliable machine without requiring state-of-the-art capabilities. In terms of cost effectiveness, the AMD Phenom X4 9850B stands out as an economical choice for users looking to maximize their investment without overspending. Given its release date and current market position, this chip often represents a budget-friendly option for those building or upgrading a system on a limited budget. Its efficient power consumption and moderate cooling requirements add to its appeal, as they translate into lower electricity bills and easier maintenance over time. While newer processors may offer better performance metrics, the AMD Phenom X4 9850B remains relevant for users who value cost efficiency over raw power. Compatibility considerations are also key, as this chip supports the AMD Socket AM2+ platform, ensuring it fits within many existing systems from the mid-2000s. For buyers seeking a balance between affordability and dependability, the AMD Phenom X4 9850B offers a compelling solution.

The Intel Equivalent of Phenom X4 9850B

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 β€’ 4 Cores

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