AMD® FX™-670K

The AMD FX-670K is a desktop processor with 4 cores and 4 threads. Clocks run from 3.7 GHz base to 4.3 GHz boost. It uses the FM2 socket. Rated TDP is 65 W.

The AMD FX-670K scores 1,599 in single-core performance and 3,046 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 2,207 for overall performance, 4,219 for productivity performance, 4,554 for creator performance, 2,932 for engineering performance and 5,559 for gaming performance. Its multi-core throughput works out to 762 per core, 762 per thread and 47 per watt. Its computed efficiency index is 274. Its performance index is 27, so its overall performance is 73% below the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the AMD FX-670K scores 21,463 in integer math, 5,708 in floating-point math, 53,289 in compression, 941 in cryptography, 253 in physics simulation, 1,313 in vector SIMD, 11 in the prime sieve and 6,432 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 64% below in integer math, 88% below in floating-point math, 77% below in compression, 92% below in cryptography, 77% below in physics simulation, 92% below in vector SIMD, 84% below in the prime sieve and 72% below in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The AMD FX-670K has 4 physical cores and runs 4 logical threads. It does not use a hybrid performance and efficiency core layout. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 3.70 GHz and boosts up to 4.30 GHz.

The AMD FX-670K is a desktop processor and belongs to the AMD FX family.

The AMD FX-670K has 320 KB of L1 cache and 8 MB of L2 cache. That adds up to about 8.3 MB of cache, or 2.08 MB per core.

The AMD FX-670K has a 2-level cache hierarchy: L1 at 320 KB and L2 at 8 MB. L2 is the largest level and makes up about 96% of the cache listed here.

The AMD FX-670K uses the FM2 socket.

The AMD FX-670K has a rated TDP of 65 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

After an audit, 2 values were corrected on the AMD FX-670K record. Each change is listed with its old value, new value, rule and sources.

• Display name: AMD® FX™ -670K → AMD® FX™-670K. Rule: Cleanup fx hyphen space. stray space between the trademark glyph and the hyphenated model, inserted from the PassMark chart "Updated name" column; model identifier unchanged.
• Normalized name: AMD® FX™ -670K → AMD® FX™-670K. Rule: Cleanup fx hyphen space. stray space between the trademark glyph and the hyphenated model, inserted from the PassMark chart "Updated name" column; model identifier unchanged.

The audit log is public: all changes for this CPU, the corrections overview and the method.

Feex has recorded 36% of the specifications it tracks for the AMD FX-670K. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Efficiency Cores, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L2 Cache (per Core) and L4 Cache. Memory Support: Max Memory, Memory Channels, Memory Bandwidth, Memory Types, DDR5 Support, DDR4 Support, LPDDR Support, ECC Memory and Max Memory Speed. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package, Package Size and PCIe Lanes. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count, Foundry and Launch Price. Naming & Aliases: SKU, Model Number, Processor Number and Part Number.

Processors that use the same FM2 socket as the AMD FX-670K and have the closest multi-core scores in the Feex database include AMD A8-6600K APU, AMD A10-5800B APU, AMD A10-6700 APU, AMD A10-6790K APU and AMD A10-5800K APU.