Athlon II X4 645 vs FX-8350

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Aggregate performance score

FX-8350
2012
8 cores / 8 threads, 125 Watt
3.74
+153%
Athlon II X4 645
2010
4 cores / 4 threads, 95 Watt
1.48

FX-8350 outperforms Athlon II X4 645 by a whopping 153% based on our aggregate benchmark results.

Primary details

Comparing FX-8350 and Athlon II X4 645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking14852167
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.883.30
Market segmentDesktop processorDesktop processor
SeriesAMD FX-Series (Desktop)no data
Power efficiency2.831.47
Architecture codenameVishera (2012−2015)Propus (2009−2011)
Release date23 October 2012 (12 years ago)21 September 2010 (14 years ago)
Launch price (MSRP)$199$80

Cost-effectiveness evaluation

Performance per price, higher is better.

Athlon II X4 645 has 275% better value for money than FX-8350.

Detailed specifications

FX-8350 and Athlon II X4 645 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 cores8 (Octa-Core)4 (Quad-Core)
Threads84
Base clock speed4 GHz3.1 GHz
Boost clock speed4.2 GHz3.1 GHz
L1 cacheno data128 KB (per core)
L2 cache8192 KB512 KB (per core)
L3 cacheno data0 KB
Chip lithography32 nm45 nm
Die size315 mm2169 mm2
Maximum core temperature61 °Cno data
Number of transistors1,200 million300 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier+-
P0 Vcore voltageMin: 1.2 V - Max: 1.4 Vno data

Compatibility

Information on FX-8350 and Athlon II X4 645 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
SocketAM3+AM3
Power consumption (TDP)125 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by FX-8350 and Athlon II X4 645. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4a, AMD64, AMD-V, AES, AVX, CLMUL, CVT16, EVP, FMA4, XOP, Turbo Core, HT3.1no data
AES-NI+-
FMA+-
AVX+-

Virtualization technologies

Virtual machine speed-up technologies supported by FX-8350 and Athlon II X4 645 are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by FX-8350 and Athlon II X4 645. 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 FX-8350 and Athlon II X4 645.

PCIe versionn/a2.0

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.

FX-8350 3.74
+153%
Athlon II X4 645 1.48

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.

FX-8350 5936
+152%
Athlon II X4 645 2351

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.

FX-8350 487
+52.2%
Athlon II X4 645 320

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.

FX-8350 1983
+105%
Athlon II X4 645 969

Gaming performance

Pros & cons summary


Performance score 3.74 1.48
Recency 23 October 2012 21 September 2010
Physical cores 8 4
Threads 8 4
Chip lithography 32 nm 45 nm
Power consumption (TDP) 125 Watt 95 Watt

FX-8350 has a 152.7% 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.

Athlon II X4 645, on the other hand, has 31.6% lower power consumption.

The FX-8350 is our recommended choice as it beats the Athlon II X4 645 in performance tests.


Should you still have questions on choice between FX-8350 and Athlon II X4 645, ask them in Comments section, and we shall answer.

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AMD FX-8350
FX-8350
AMD Athlon II X4 645
Athlon II X4 645

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Community ratings

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Questions & comments

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