Athlon II X3 420e vs Athlon 64 FX-62

Place in the ranking	2787	2488
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	0.09
Market segment	Desktop processor	Desktop processor
Series	Athlon 64 (Desktop)	no data
Power efficiency	0.48	2.06
Architecture codename	Windsor (2006−2007)	Rana (2009−2011)
Release date	no data	21 September 2010 (14 years ago)
Launch price (MSRP)	no data	$116

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon 64 (Desktop) FX-62 and Athlon II X3 420e basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	2 (Dual-core)	3 (Tri-Core)
Threads	2	3
Base clock speed	no data	2.6 GHz
Boost clock speed	2.8 GHz	2.6 GHz
Bus rate	1000 MHz	no data
L1 cache	256 KB	128 KB (per core)
L2 cache	1 MB	512 KB (per core)
L3 cache	0 KB	0 KB
Chip lithography	90 nm	45 nm
Die size	220 mm²	169 mm²
Number of transistors	243 million	300 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Athlon 64 (Desktop) FX-62 and Athlon II X3 420e compatibility with other computer components: 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. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	AM2	AM3
Power consumption (TDP)	125 Watt	45 Watt

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon 64 (Desktop) FX-62 and Athlon II X3 420e. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1

DDR3

Peripherals

Specifications and connection of peripherals supported by Athlon 64 (Desktop) FX-62 and Athlon II X3 420e.

PCIe version

no data

2.0

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark 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.

Athlon 64 FX-62 0.63

Athlon II X3 420e 0.98
+55.6%

Passmark

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

Athlon 64 FX-62 993

Athlon II X3 420e 1557
+56.8%

Gaming performance

Pros & cons summary

Performance score	0.63	0.98
Physical cores	2	3
Threads	2	3
Chip lithography	90 nm	45 nm
Power consumption (TDP)	125 Watt	45 Watt

Athlon II X3 420e has a 55.6% higher aggregate performance score, 50% more physical cores and 50% more threads, a 100% more advanced lithography process, and 177.8% lower power consumption.

The Athlon II X3 420e is our recommended choice as it beats the Athlon 64 FX-62 in performance tests.

Should you still have questions on choice between Athlon 64 FX-62 and Athlon II X3 420e, ask them in Comments section, and we shall answer.