Pentium G645 vs Athlon II X3 455

VS

Aggregate performance score

Athlon II X3 455
2010
3 cores / 3 threads, 95 Watt
1.18
+31.1%
Pentium G645
2012
2 cores / 2 threads, 65 Watt
0.90

Athlon II X3 455 outperforms Pentium G645 by a substantial 31% based on our aggregate benchmark results.

Primary details

Comparing Athlon II X3 455 and Pentium G645 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking23652549
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation5.520.06
Market segmentDesktop processorDesktop processor
Power efficiency1.181.31
Architecture codenameRana (2009−2011)Sandy Bridge (2011−2013)
Release date7 December 2010 (14 years ago)2 September 2012 (12 years ago)
Launch price (MSRP)$88$80

Cost-effectiveness evaluation

Performance per price, higher is better.

Athlon II X3 455 has 9100% better value for money than Pentium G645.

Detailed specifications

Athlon II X3 455 and Pentium G645 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 cores3 (Tri-Core)2 (Dual-core)
Threads32
Base clock speed3.3 GHz2.9 GHz
Boost clock speed3.3 GHz2.9 GHz
Bus rateno data5 GT/s
L1 cache128 KB (per core)64 KB (per core)
L2 cache512 KB (per core)256 KB (per core)
L3 cache0 KB3 MB (shared)
Chip lithography45 nm32 nm
Die size169 mm2131 mm2
Maximum core temperatureno data69 °C
Number of transistors300 million504 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Athlon II X3 455 and Pentium G645 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
SocketAM3FCLGA1155
Power consumption (TDP)95 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon II X3 455 and Pentium G645. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2
AES-NI-+
AVX-+
Enhanced SpeedStep (EIST)no data+
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data-
Idle Statesno data+
Thermal Monitoring-+
Flex Memory Accessno data+
FDIno data+
Fast Memory Accessno data+

Security technologies

Athlon II X3 455 and Pentium G645 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data-
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon II X3 455 and Pentium G645 are enumerated here.

VT-dno data-
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X3 455 and Pentium G645. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory sizeno data32 GB
Max memory channelsno data2
Maximum memory bandwidthno data17 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel HD Graphics for 2nd Generation Intel Processors
Graphics max frequencyno data1.1 GHz

Graphics interfaces

Available interfaces and connections of Athlon II X3 455 and Pentium G645 integrated GPUs.

Number of displays supportedno data2

Peripherals

Specifications and connection of peripherals supported by Athlon II X3 455 and Pentium G645.

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.

Athlon II X3 455 1.18
+31.1%
Pentium G645 0.90

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 II X3 455 1879
+31.5%
Pentium G645 1429

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.

Athlon II X3 455 348
Pentium G645 454
+30.5%

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.

Athlon II X3 455 855
+10.6%
Pentium G645 773

Gaming performance

Pros & cons summary


Performance score 1.18 0.90
Recency 7 December 2010 2 September 2012
Physical cores 3 2
Threads 3 2
Chip lithography 45 nm 32 nm
Power consumption (TDP) 95 Watt 65 Watt

Athlon II X3 455 has a 31.1% higher aggregate performance score, and 50% more physical cores and 50% more threads.

Pentium G645, on the other hand, has an age advantage of 1 year, a 40.6% more advanced lithography process, and 46.2% lower power consumption.

The Athlon II X3 455 is our recommended choice as it beats the Pentium G645 in performance tests.


Should you still have questions on choice between Athlon II X3 455 and Pentium G645, ask them in Comments section, and we shall answer.

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AMD Athlon II X3 455
Athlon II X3 455
Intel Pentium G645
Pentium G645

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


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Questions & comments

Here you can ask a question about Athlon II X3 455 or Pentium G645, agree or disagree with our judgements, or report an error or mismatch.