Phenom II X4 840 vs Core 2 Quad Q8300

VS

Aggregate performance score

Core 2 Quad Q8300
2008
4 cores / 4 threads, 95 Watt
1.19
Phenom II X4 840
2011
4 cores / 4 threads, 95 Watt
1.52
+27.7%

Phenom II X4 840 outperforms Core 2 Quad Q8300 by a significant 28% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Quad Q8300 and Phenom II X4 840 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking23602144
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data3.08
Market segmentDesktop processorDesktop processor
Power efficiency1.181.51
Architecture codenameYorkfield (2007−2009)Propus (2009−2011)
Release dateNovember 2008 (16 years ago)4 January 2011 (13 years ago)
Launch price (MSRP)no data$90

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Quad Q8300 and Phenom II X4 840 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)4 (Quad-Core)
Threads44
Base clock speed2.5 GHz3.2 GHz
Boost clock speed2.5 GHz3.2 GHz
Bus rate1333 MHzno data
L1 cache64K (per core)128 KB (per core)
L2 cache4 MB (shared)512 KB (per core)
L3 cache0 KB0 KB
Chip lithography45 nm45 nm
Die size2x 81 mm2169 mm2
Maximum case temperature (TCase)71 °Cno data
Number of transistors456 million300 million
64 bit support++
Windows 11 compatibility--
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Quad Q8300 and Phenom II X4 840 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
SocketLGA775AM3
Power consumption (TDP)95 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q8300 and Phenom II X4 840. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology-no data
Hyper-Threading Technology-no data
Idle States+no data
Thermal Monitoring+-
Demand Based Switching-no data
FSB parity-no data

Security technologies

Core 2 Quad Q8300 and Phenom II X4 840 technologies aimed at improving security, for example, by protecting against hacks.

TXT-no data
EDB+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8300 and Phenom II X4 840. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR3

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q8300 and Phenom II X4 840.

PCIe versionno data2.0

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.

Core 2 Quad Q8300 1.19
Phenom II X4 840 1.52
+27.7%

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.

Core 2 Quad Q8300 1892
Phenom II X4 840 2417
+27.7%

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.

Core 2 Quad Q8300 312
Phenom II X4 840 332
+6.4%

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.

Core 2 Quad Q8300 883
Phenom II X4 840 941
+6.6%

Gaming performance

Pros & cons summary


Performance score 1.19 1.52

Phenom II X4 840 has a 27.7% higher aggregate performance score.

The Phenom II X4 840 is our recommended choice as it beats the Core 2 Quad Q8300 in performance tests.


Should you still have questions on choice between Core 2 Quad Q8300 and Phenom II X4 840, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Core 2 Quad Q8300
Core 2 Quad Q8300
AMD Phenom II X4 840
Phenom II X4 840

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Community ratings

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


3.8 605 votes

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3.9 257 votes

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Questions & comments

Here you can ask a question about Core 2 Quad Q8300 or Phenom II X4 840, agree or disagree with our judgements, or report an error or mismatch.