FX-8100 vs Phenom II X4 905e

VS

Aggregate performance score

Phenom II X4 905e
2009
4 cores / 4 threads, 65 Watt
1.22
FX-8100
2011
8 cores / 8 threads, 95 Watt
2.55
+109%

FX-8100 outperforms Phenom II X4 905e by a whopping 109% based on our aggregate benchmark results.

Primary details

Comparing Phenom II X4 905e and FX-8100 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking23371750
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.08no data
Market segmentDesktop processorDesktop processor
Series4x Phenom II (Desktop)no data
Power efficiency1.782.54
Architecture codenameDeneb (2009−2011)Zambezi (2011−2012)
Release date2 June 2009 (15 years ago)12 October 2011 (13 years ago)
Launch price (MSRP)$212no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Phenom II X4 905e and FX-8100 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 cores4 (Quad-Core)8 (Octa-Core)
Threads48
Base clock speed2.5 GHz2.8 GHz
Boost clock speed2.5 GHz3.7 GHz
L1 cache128 KB (per core)384 KB
L2 cache512 KB (per core)8 MB
L3 cache6 MB (shared)8 MB (shared)
Chip lithography45 nm32 nm
Die size258 mm2315 mm2
Number of transistors758 million1,200 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+

Compatibility

Information on Phenom II X4 905e and FX-8100 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 configuration11
SocketAM3AM3+
Power consumption (TDP)65 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Phenom II X4 905e and FX-8100. You'll probably need this information if you require some particular technology.

Instruction set extensions45 nm, 1.25no data
AES-NI-+
FMA-+
AVX-+

Virtualization technologies

Virtual machine speed-up technologies supported by Phenom II X4 905e and FX-8100 are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X4 905e and FX-8100. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)no data

Peripherals

Specifications and connection of peripherals supported by Phenom II X4 905e and FX-8100.

PCIe version2.02.0

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.

Phenom II X4 905e 1.22
FX-8100 2.55
+109%

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.

Phenom II X4 905e 1936
FX-8100 4055
+109%

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Phenom II X4 905e 341
FX-8100 411
+20.5%

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Phenom II X4 905e 1150
FX-8100 1819
+58.2%

Gaming performance

Pros & cons summary


Performance score 1.22 2.55
Recency 2 June 2009 12 October 2011
Physical cores 4 8
Threads 4 8
Chip lithography 45 nm 32 nm
Power consumption (TDP) 65 Watt 95 Watt

Phenom II X4 905e has 46.2% lower power consumption.

FX-8100, on the other hand, has a 109% higher aggregate performance score, an age advantage of 2 years, 100% more physical cores and 100% more threads, and a 40.6% more advanced lithography process.

The FX-8100 is our recommended choice as it beats the Phenom II X4 905e in performance tests.


Should you still have questions on choice between Phenom II X4 905e and FX-8100, ask them in Comments section, and we shall answer.

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AMD Phenom II X4 905e
Phenom II X4 905e
AMD FX-8100
FX-8100

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Community ratings

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4.2 28 votes

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Questions & comments

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