AMD Athlon II X4 645: specs and benchmarks

AMD Athlon II X4 645

Summary

AMD started AMD Athlon II X4 645 sales 21 September 2010 at a recommended price of $80. This is Propus architecture desktop processor primarily aimed at office systems. It has 4 cores and 4 threads, and is based on 45 nm manufacturing technology, with a maximum frequency of 3.1 and a locked multiplier.

Compatibility-wise, this is AMD Socket AM3 processor with a TDP of 95 Watt. It supports DDR3 Dual-channel memory.

It provides poor benchmark performance at 2.52 percent of a leader's which is AMD EPYC 7763.

General info

Of Athlon II X4 645 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in our rating
 
Value for money (0-100)
9.93
 
Market segment
Desktop processor
 
Architecture codename
Propus
 
Launch date
21 September 2010 (10 years ago)
 
Launch price (MSRP)
$80
 
Price now
$40
 

Technical specs

Basic processor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores
4
 
Threads
4
 
Base clock speed
3.1 GHz
 
of 4.7 (FX-9590)
Boost clock speed
3.1 GHz
 
L1 cache
128 KB (per core)
 
of 896 (Atom C3950)
L2 cache
512 KB (per core)
 
Chip lithography
45 nm
 
of 5 (Apple M1)
Die size
169 mm2
 
Transistor count
300 million
 
of 16000 (Apple M1)
64 bit support
+
 

Compatibility

Information on Athlon II X4 645 compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one.

Number of CPUs in a configuration
1
 
Socket
AM3
 
Thermal design power (TDP)
95 Watt
 

Memory specs

Types, maximum amount and channel number of RAM supported by Athlon II X4 645's memory controller.

Supported memory types
DDR3 Dual-channel
 
of 4266 (Ryzen 9 4900H)

Benchmark performance

Single-core and multi-core benchmark results of Athlon II X4 645. Overall benchmark performance is measured in points in 0-100 range, higher is better.

Overall score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

2.52

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different tests, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario.

2213

Game benchmarks

Let's see how good Athlon II X4 645 is for a gaming PC, compared with system requirements of some popular titles. Remember that sometimes official hardware requirements may reflect real performance inaccurately.

Intel equivalent

We believe that the nearest equivalent to Athlon II X4 645 from Intel is Core i5-650, which is nearly equal in speed and lower by 3 positions in our rating.

User rating

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.

Advices and comments

Here you can ask a question about Athlon II X4 645, agree or disagree with our judgements, or report an error or mismatch.