AMD

AMD Phenom II X4 805

AMD processor specifications and benchmark scores

4
Cores
4
Threads
โ€”
GHz Boost
95W
TDP
๐Ÿ–ฅ๏ธIntegrated GPU ๐Ÿ›ก๏ธECC Memory

AMD Phenom II X4 805 Specifications

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Phenom II X4 805 Core Configuration

Processing cores and threading

The AMD Phenom II X4 805 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 II X4 805 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Phenom II X4 805 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 II X4 805 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 II X4 805 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Phenom II X4 805 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 II X4 805'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
4 MB (shared)
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K10 Architecture & Process

Manufacturing and design details

The AMD Phenom II X4 805 is built on AMD's 45 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 II X4 805 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
K10
Codename
Deneb
Process Node
45 nm
Transistors
758 million
Die Size
258 mmยฒ
Generation
Phenom II X4 (Deneb)
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K10 Instruction Set Features

Supported CPU instructions and extensions

The Phenom II X4 805 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 II X4 805 Power & Thermal

TDP and power specifications

The AMD Phenom II X4 805 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 AM3 Platform & Socket

Compatibility information

The Phenom II X4 805 uses the AMD Socket AM3 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 AM3
Chipsets
AMD 700 Series, AMD 800 Series, AMD 900 Series, nForce 630a, nForce 700a, nForce 900a
PCIe
Gen 2
Package
ยตPGA
DDR5

AMD Socket AM3 Memory Support

RAM compatibility and speeds

Memory support specifications for the Phenom II X4 805 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 II X4 805 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 Type
DDR3
Memory Bus
Dual-channel
Memory Bandwidth
21.3 GB/s
ECC Memory
Supported
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AMD's Phenom II X4 805 Integrated Graphics

Built-in GPU specifications

The AMD Phenom II X4 805 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 II X4 805 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 II X4 805 Product Information

Release and pricing details

The AMD Phenom II X4 805 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 II X4 805 by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
Feb 2009
Market
Desktop
Status
End-of-life
Part Number
HDX805WFK4FGI

Phenom II X4 805 Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how AMD Phenom II X4 805 performs in parallel rendering workloads.

cinebench_cinebench_r15_multicore #1585 of 1788
171
1%
Max: 14,978
Compare with other CPUs

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on AMD Phenom II X4 805. The more demanding workload provides better differentiation between current-generation processors. Content creators and 3D artists use this benchmark to estimate real-world render performance.

cinebench_cinebench_r20_multicore #1586 of 1788
714
1%
Max: 62,412
Compare with other CPUs

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of AMD Phenom II X4 805. The increased complexity provides more accurate performance differentiation between modern CPUs. Single-thread performance remains critical for gaming and applications with serial bottlenecks.

cinebench_cinebench_r20_singlecore #1589 of 1784
100
1%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of AMD Phenom II X4 805 after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss. Professional users rely on R23 scores to predict real-world rendering performance under sustained workloads.

cinebench_cinebench_r23_multicore #1587 of 1788
1,700
1%
Max: 148,601
Compare with other CPUs

๐Ÿ† Top 5 Performers

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how AMD Phenom II X4 805 maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance. This score is particularly important for understanding real-world responsiveness beyond initial boost behavior.

cinebench_cinebench_r23_singlecore #1586 of 1788
240
1%
Max: 20,979
Compare with other CPUs

About AMD Phenom II X4 805

AMD Phenom II X4 805: A Sturdy Mid-Range Performer

The AMD Phenom II X4 805 processor, based on the 45 nm Deneb architecture, delivers a balanced mix of performance and efficiency for its era. With four cores operating at a base clock of 2.50 GHz, this chip is well-suited for a variety of everyday tasks and moderate workloads. Real-world performance expectations include smooth multitasking, responsive web browsing, and decent productivity in applications like photo editing and light video work. Benchmark results, such as a Cinebench R23 multicore score of 1,700 points, confirm its capabilities in handling concurrent operations without significant bottlenecks.

When it comes to gaming capabilities, the AMD Phenom II X4 805 remains a competent but not cutting-edge choice. While it won't compete with modern processors in demanding AAA titles, it can still handle older and less graphically intensive games reasonably well. Paired with a capable discrete GPU, this chip can deliver enjoyable frame rates in popular titles from the late 2000s and early 2010s. However, newer games that rely heavily on single-thread performance may see limitations, as reflected by its Cinebench R20 singlecore score of 100 points.

One of the strongest appeals of the AMD Phenom II X4 805 is its value proposition. Released in 2009, this processor offers a budget-friendly option for those looking to build or upgrade a system on a limited budget. Its 95W TDP strikes a decent balance between power consumption and performance, making it suitable for users who want reliable performance without excessive electricity bills. Additionally, its compatibility with Socket AM3 motherboards means users can leverage existing infrastructure, further enhancing its cost-effectiveness.

Platform requirements for the AMD Phenom II X4 805 are relatively straightforward, with support for Socket AM3 motherboards ensuring broad compatibility. Users should ensure their motherboard firmware is up to date to maximize stability and performance. While it may not match the latest multi-core behemoths, the Phenom II X4 805 provides a solid foundation for those seeking a dependable, no-frills computing experience. For enthusiasts on a budget or those maintaining legacy systems, this chip remains an interesting option that balances performance, power efficiency, and affordability.

The Intel Equivalent of Phenom II X4 805

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 โ€ข 4 Cores

View Specs Compare

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