Pentium G840 vs Core 2 Duo T8100

VS

Aggregate performance score

Core 2 Duo T8100
2008
2 cores / 2 threads, 35 Watt
0.48
Pentium G840
2011
2 cores / 2 threads, 65 Watt
0.81
+68.8%

Pentium G840 outperforms Core 2 Duo T8100 by an impressive 69% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Duo T8100 and Pentium G840 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking29072604
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data4.61
Market segmentLaptopDesktop processor
SeriesIntel Core 2 Duono data
Power efficiency1.301.18
Architecture codenamePenryn (2008−2011)Sandy Bridge (2011−2013)
Release date10 January 2008 (16 years ago)22 May 2011 (13 years ago)
Launch price (MSRP)$209$60

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Duo T8100 and Pentium G840 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 cores2 (Dual-core)2 (Dual-core)
Threads22
Base clock speed2.1 GHz2.8 GHz
Boost clock speed2.1 GHz2.8 GHz
Bus rate800 MHzno data
L1 cacheno data64 KB (per core)
L2 cache3 MB256 KB (per core)
L3 cache3 MB L2 Cache3 MB (shared)
Chip lithography45 nm32 nm
Die size107 mm2131 mm2
Maximum core temperature105 °C69 °C
Number of transistors410 Million504 million
64 bit support++
Windows 11 compatibility--
VID voltage range1V-1.25Vno data

Compatibility

Information on Core 2 Duo T8100 and Pentium G840 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 configurationno data1
SocketBGA479,PGA478FCLGA1155
Power consumption (TDP)35 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T8100 and Pentium G840. 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)++
Turbo Boost Technology--
Hyper-Threading Technology--
Idle States++
Thermal Monitoring-+
Flex Memory Accessno data+
Demand Based Switching-no data
FDIno data+
Fast Memory Accessno data+
FSB parity-no data

Security technologies

Core 2 Duo T8100 and Pentium G840 technologies aimed at improving security, for example, by protecting against hacks.

TXT--
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo T8100 and Pentium G840 are enumerated here.

VT-dno data-
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T8100 and Pentium G840. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR3
Maximum memory sizeno data32 GB
Max memory channelsno data2
Maximum memory bandwidthno data21 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 Core 2 Duo T8100 and Pentium G840 integrated GPUs.

Number of displays supportedno data2

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T8100 and Pentium G840.

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 Duo T8100 0.48
Pentium G840 0.81
+68.8%

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 Duo T8100 770
Pentium G840 1294
+68.1%

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 Duo T8100 271
Pentium G840 452
+66.8%

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 Duo T8100 429
Pentium G840 789
+83.9%

Gaming performance

Pros & cons summary


Performance score 0.48 0.81
Recency 10 January 2008 22 May 2011
Chip lithography 45 nm 32 nm
Power consumption (TDP) 35 Watt 65 Watt

Core 2 Duo T8100 has 85.7% lower power consumption.

Pentium G840, on the other hand, has a 68.8% higher aggregate performance score, an age advantage of 3 years, and a 40.6% more advanced lithography process.

The Pentium G840 is our recommended choice as it beats the Core 2 Duo T8100 in performance tests.

Be aware that Core 2 Duo T8100 is a notebook processor while Pentium G840 is a desktop one.


Should you still have questions on choice between Core 2 Duo T8100 and Pentium G840, ask them in Comments section, and we shall answer.

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Intel Core 2 Duo T8100
Core 2 Duo T8100
Intel Pentium G840
Pentium G840

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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 Core 2 Duo T8100 or Pentium G840, agree or disagree with our judgements, or report an error or mismatch.