Xeon E5345 vs Core 2 Quad Q8400

VS

Aggregate performance score

Core 2 Quad Q8400
2009
4 cores / 4 threads, 95 Watt
1.31
+11%
Xeon E5345
2006
4 cores / 4 threads, 80 Watt
1.18

Core 2 Quad Q8400 outperforms Xeon E5345 by a moderate 11% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Quad Q8400 and Xeon E5345 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking22662353
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.04
Market segmentDesktop processorServer
Power efficiency1.301.39
Architecture codenameYorkfield (2007−2009)Clovertown (2006−2007)
Release date19 April 2009 (15 years ago)14 November 2006 (18 years ago)
Launch price (MSRP)no data$851

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Quad Q8400 and Xeon E5345 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 speed2.66 GHz2.33 GHz
Boost clock speed0.67 GHz0.33 GHz
Bus rate1333 MHzno data
L1 cache64 KB (per core)64 KB (per core)
L2 cache4 MB (shared)4 MB (per die)
L3 cache0 KB8 MB L2 Cache
Chip lithography45 nm65 nm
Die size2x 82 mm22x 143 mm2
Maximum case temperature (TCase)71 °C66 °C
Number of transistors456 million582 million
64 bit support++
Windows 11 compatibility-no data
VID voltage range0.85V-1.3625V1V-1.5V

Compatibility

Information on Core 2 Quad Q8400 and Xeon E5345 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 configuration12
SocketFCLGA775,LGA775LGA771,PLGA771
Power consumption (TDP)95 Watt80 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q8400 and Xeon E5345. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)++
Turbo Boost Technology--
Hyper-Threading Technology--
Idle States++
Thermal Monitoring++
Demand Based Switching-+
PAEno data32 Bit
FSB parity-+

Security technologies

Core 2 Quad Q8400 and Xeon E5345 technologies aimed at improving security, for example, by protecting against hacks.

TXT--
EDB++

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q8400 and Xeon E5345 are enumerated here.

VT-x++
EPTno data-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400 and Xeon E5345. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR2, DDR3 Depends on motherboard

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)N/A

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q8400 and Xeon E5345.

PCIe version2.0no data

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 Q8400 1.31
+11%
Xeon E5345 1.18

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 Q8400 2067
+10.7%
Xeon E5345 1868

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 Q8400 328
+2.8%
Xeon E5345 319

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 Q8400 895
Xeon E5345 1054
+17.8%

Gaming performance

Pros & cons summary


Performance score 1.31 1.18
Recency 19 April 2009 14 November 2006
Chip lithography 45 nm 65 nm
Power consumption (TDP) 95 Watt 80 Watt

Core 2 Quad Q8400 has a 11% higher aggregate performance score, an age advantage of 2 years, and a 44.4% more advanced lithography process.

Xeon E5345, on the other hand, has 18.8% lower power consumption.

The Core 2 Quad Q8400 is our recommended choice as it beats the Xeon E5345 in performance tests.

Note that Core 2 Quad Q8400 is a desktop processor while Xeon E5345 is a server/workstation one.


Should you still have questions on choice between Core 2 Quad Q8400 and Xeon E5345, ask them in Comments section, and we shall answer.

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Intel Core 2 Quad Q8400
Core 2 Quad Q8400
Intel Xeon E5345
Xeon E5345

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