AMD

AMD Athlon II X4 640

AMD processor specifications and benchmark scores

4
Cores
4
Threads
—
GHz Boost
95W
TDP
🖥️Integrated GPU

AMD Athlon II X4 640 Specifications

⚙️

Athlon II X4 640 Core Configuration

Processing cores and threading

The AMD Athlon II X4 640 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
⏱️

Athlon II X4 640 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Athlon II X4 640 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 Athlon II X4 640 by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3 GHz
Boost Clock
N/A
Multiplier
15x
đź’ľ

AMD's Athlon II X4 640 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the Athlon II X4 640 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 Athlon II X4 640'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)
🏗️

K10 Architecture & Process

Manufacturing and design details

The AMD Athlon II X4 640 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 Athlon II X4 640 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
K10
Codename
Propus
Process Node
45 nm
Transistors
300 million
Die Size
169 mm²
Generation
Athlon II X4 (Propus)
🔢

K10 Instruction Set Features

Supported CPU instructions and extensions

The Athlon II X4 640 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
🔌

Athlon II X4 640 Power & Thermal

TDP and power specifications

The AMD Athlon II X4 640 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
đź”§

AMD Socket AM3 Platform & Socket

Compatibility information

The Athlon II X4 640 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
PCIe
Gen 2
Package
µPGA
DDR5

AMD Socket AM3 Memory Support

RAM compatibility and speeds

Memory support specifications for the Athlon II X4 640 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 Athlon II X4 640 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
🖥️

AMD's Athlon II X4 640 Integrated Graphics

Built-in GPU specifications

The AMD Athlon II X4 640 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 Athlon II X4 640 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)
📦

Athlon II X4 640 Product Information

Release and pricing details

The AMD Athlon II X4 640 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 Athlon II X4 640 by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Release Date
May 2010
Market
Desktop
Status
End-of-life
Part Number
ADX640WFK42GMADX640WFGMBOX

Athlon II X4 640 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 Athlon II X4 640 performs in parallel rendering workloads like video production and 3D animation. The R15 version remains useful for comparing against older hardware benchmarks. Higher scores directly correlate with faster render times in Cinema 4D and similar 3D applications.

cinebench_cinebench_r15_multicore #1521 of 1788
194
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 Athlon II X4 640. The more demanding workload provides better differentiation between current-generation processors.

cinebench_cinebench_r20_multicore #1524 of 1788
809
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 Athlon II X4 640. The increased complexity provides more accurate performance differentiation between modern CPUs.

cinebench_cinebench_r20_singlecore #1519 of 1784
114
1%
Max: 8,811
Compare with other CPUs

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 Athlon II X4 640 after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss.

cinebench_cinebench_r23_multicore #1524 of 1788
1,927
1%
Max: 148,601
Compare with other CPUs

🏆 Top 5 Performers

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how AMD Athlon II X4 640 maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance.

cinebench_cinebench_r23_singlecore #1523 of 1788
272
1%
Max: 20,979
Compare with other CPUs

About AMD Athlon II X4 640

Unearthing the AMD Athlon II X4 640 by AMD feels like stumbling upon a forgotten workhorse from the early 2010s tech scene a quad-core chip built on a 45nm process, rocking a solid 3.00 GHz base clock without turbo boosts. With four cores and four threads, it’s not exactly built for today’s heavily multithreaded workloads, but for basic day-to-day tasks like web browsing, streaming videos, or managing office documents, it holds up surprisingly well think of it as the digital equivalent of a trusty sedan that still runs, even if it doesn’t turn heads. Released back on May 11, 2010, this Socket AM3 processor was designed for affordability, and that shows in its 95W TDP and lack of L3 cache. Still, the absence of hyperthreading doesn’t cripple its usability for lighter multitasking, especially in systems paired with decent RAM and an SSD. It won’t crush video editing or 3D rendering, but if you're reviving an old PC for email, YouTube, or even light programming, the AMD Athlon II X4 640 by AMD can pull its weight. Benchmark numbers like 194 points in Cinebench R15 multicore and 809 in Cinebench R20 multicore confirm its position in the entry-level tier by today’s standards. While modern CPUs laugh at these scores, they’re not dead in the water for non-intensive routines. The real charm lies in its simplicity no fancy power management, no complex core架构, just straightforward processing power for those who don’t need more. If you're on a tight budget or scavenging parts, this chip might just be the hidden gem you didn’t know you needed. Running Windows 10 or even a lightweight Linux distro, it delivers just enough juice to stay relevant in niche use cases.

When it comes to gaming, the AMD Athlon II X4 640 by AMD demands serious realism this isn’t a gaming beast, but more of a budget-minded survivor in a world dominated by octa-core titans. Titles from its era like Left 4 Dead 2, StarCraft II, or even early entries in the Skyrim engine will run, provided you've got a discrete GPU pulling the graphics load. Without integrated graphics, your gaming experience hinges entirely on your GPU pairing, so coupling it with something like a Radeon HD 7770 or GTX 750 Ti could yield playable framerates at 720p in older or indie games. However, modern AAA titles will choke instantly games relying on strong single-core performance, like Cyberpunk 2077 or Elden Ring, will stutter or fail to launch altogether. Its single-core score of 114 in Cinebench R20 and 272 in R23 highlights its bottleneck in CPU-intensive scenarios. The lack of modern instruction sets and memory bandwidth limits further drag performance, especially in open-world games requiring fast data streaming. That said, retro gaming builds or emulation up to PS2/Wii levels can still benefit from this processor’s quad-core layout. It won’t win any awards, but in the right context say, a retro LAN party rig it’s more than a nostalgic relic. For gamers on a shoestring who aren’t chasing 60fps in AAA blockbusters, this old-school chip still has a pulse.

Where this processor truly sparks interest is in its price-to-performance ratio or rather, the ghost of one. Today, you’ll likely find the AMD Athlon II X4 640 by AMD going for just a few bucks on the secondhand market, making it a tempting option for DIY tinkerers or repair enthusiasts. But is it worth it? Consider these factors before dropping it into your next build:

  • Budget Revival Builds: Ideal for breathing life into older AM3 motherboards without spending much.
  • Compatibility: Works with DDR3 and AM3/AM3+ sockets, but check motherboard BIOS support some newer boards dropped compatibility.
  • Upgrade Ceiling: Limited don’t expect to pair it with a modern GPU and get miracles; bottlenecks will be severe.
  • Power & Heat: 95W TDP means it runs hot; ensure your cooling setup isn’t an afterthought.

While you won’t match modern quad-cores like Ryzen 3s or even Pentium Golds, the real value here is in salvage engineering using what’s already available. It’s not about winning benchmarks (1,927 in Cinebench R23 multicore says as much), but about solving problems creatively. For students, hobbyists, or anyone diving into hardware on a dime, this aging AMD chip offers a hands-on lesson in limitations and optimization. It may be outdated, but in the right hands, it’s far from obsolete.

The Intel Equivalent of Athlon II X4 640

Looking for a similar processor from Intel? The Intel Core i5-655K offers comparable performance and features in the Intel lineup.

Intel Core i5-655K

Intel • 2 Cores

View Specs Compare

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