AMD

AMD FX-770K

AMD processor specifications and benchmark scores

4
Cores
4
Threads
3.9
GHz Boost
65W
TDP
🔓Unlocked

AMD FX-770K Specifications

⚙️

FX-770K Core Configuration

Processing cores and threading

The AMD FX-770K 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
⏱️

FX-770K Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in FX-770K 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 FX-770K by AMD can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.5 GHz
Boost Clock
3.9 GHz
Multiplier
35x 🔓
💾

AMD's FX-770K Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the FX-770K 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 FX-770K's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
256 KB
L2 Cache
4 MB
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Steamroller Architecture & Process

Manufacturing and design details

The AMD FX-770K is built on AMD's 28 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 FX-770K incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Steamroller
Codename
Kaveri
Process Node
28 nm
Foundry
GlobalFoundries
Transistors
2,411 million
Die Size
245 mm²
Generation
FX (Kaveri)
🔢

Steamroller Instruction Set Features

Supported CPU instructions and extensions

The FX-770K 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
SSSE3
SSE4A
SSE4.1
SSE4.2
AES
AVX
AVX2
FMA3
BMI1
AMD64
AMD-V
🔌

FX-770K Power & Thermal

TDP and power specifications

The AMD FX-770K has a TDP (Thermal Design Power) of 65W, 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
65W
🔧

AMD Socket FM2+ Platform & Socket

Compatibility information

The FX-770K uses the AMD Socket FM2+ 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 FM2+
Chipsets
A88X, A85X, A78, A75, A68H
PCIe
Gen 3, 16 Lanes(CPU only)
Package
µPGA
DDR5

AMD Socket FM2+ Memory Support

RAM compatibility and speeds

Memory support specifications for the FX-770K 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 FX-770K 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
34.1 GB/s
📦

FX-770K Product Information

Release and pricing details

The AMD FX-770K 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 FX-770K by AMD offers a specific balance of performance, features, and cost within AMD's product lineup.

Manufacturer
AMD
Market
Desktop
Status
End-of-life
Part Number
FD770KYBI44JA

FX-770K Benchmark Scores

📊

No benchmark data available for this CPU.

About AMD FX-770K

The AMD FX-770K delivers modest single‑thread throughput that feels adequate for everyday desktop tasks but struggles with heavily threaded workloads. Its 3.5 GHz base clock and 3.9 GHz boost provide a predictable performance envelope that aligns with the 65 W TDP envelope of the Kaveri‑based design. In web browsing and office suites the chip holds its own, though latency spikes become noticeable when multiple background services run concurrently. Gaming at 1080p shows acceptable frame rates at low settings, but modern titles with higher shader complexity expose the limited cache hierarchy. Power consumption remains low under idle conditions, yet sustained loads can trigger thermal throttling if cooling is insufficient. Overall, the practical performance of the AMD FX-770K is best suited for budget builds where cost outweighs raw speed. When evaluated as a workstation processor, the FX-770K’s four cores and lack of simultaneous multithreading limit its ability to handle parallel compile jobs efficiently. Applications that leverage SIMD, such as video encoding with AVX‑enabled codecs, see only marginal speedups compared to newer Ryzen or Threadripper offerings. Memory latency is amplified by the FM2+ platform’s slower DDR3 bandwidth, which can bottleneck data‑intensive benchmarks. Nevertheless, for lightweight CAD drafts or 2D rendering the chip remains usable, especially when paired with a fast SSD and ample RAM. The absence of overclock headroom further restricts its suitability for high‑throughput professional pipelines. In summary, the workstation performance of FX-770K is adequate for entry‑level tasks but not competitive for demanding engineering workloads. From a cost‑effectiveness standpoint, the FX‑770K’s low price on the secondary market makes it attractive for retrofits, yet the total platform cost can rise due to the need for a compatible FM2+ motherboard and DDR3 memory. Compatibility considerations include the limited BIOS update path, as newer chipsets no longer support Kaveri CPUs without a firmware patch. The socket’s discontinuation also means that future upgrade paths are blocked, locking the system into a legacy configuration. For users prioritizing longevity, investing in a newer socket platform may ultimately provide better value despite higher upfront costs. Consequently, the FX‑770K remains a niche choice that only makes sense when budget constraints and legacy software compatibility dominate the decision matrix.

The Intel Equivalent of FX-770K

Looking for a similar processor from Intel? The Intel Core i5-110 offers comparable performance and features in the Intel lineup.

Intel Core i5-110

Intel • 6 Cores

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