Athlon II X2 245 vs Core 2 Quad Q8400

Aggregate performance score

Core 2 Quad Q8400
2009
4 cores / 4 threads, 95 Watt
1.30
+85.7%
Athlon II X2 245
2009
2 cores / 2 threads, 65 Watt
0.70

Core 2 Quad Q8400 outperforms Athlon II X2 245 by an impressive 86% based on our aggregate benchmark results.

Primary details

Comparing Core 2 Quad Q8400 and Athlon II X2 245 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking22812718
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data5.89
Market segmentDesktop processorDesktop processor
Power efficiency1.291.02
Architecture codenameYorkfield (2007−2009)Regor (2009−2013)
Release date19 April 2009 (15 years ago)23 July 2009 (15 years ago)
Launch price (MSRP)no data$35

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core 2 Quad Q8400 and Athlon II X2 245 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)2 (Dual-core)
Threads42
Base clock speed2.66 GHz2.9 GHz
Boost clock speed0.67 GHz2.9 GHz
Bus rate1333 MHzno data
L1 cache64 KB (per core)256 KB
L2 cache4 MB (shared)2 MB
L3 cache0 KB0 KB
Chip lithography45 nm45 nm
Die size2x 82 mm2117 mm2
Maximum case temperature (TCase)71 °Cno data
Number of transistors456 million410 million
64 bit support++
Windows 11 compatibility--
VID voltage range0.85V-1.3625Vno data

Compatibility

Information on Core 2 Quad Q8400 and Athlon II X2 245 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
SocketFCLGA775,LGA775AM3
Power consumption (TDP)95 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Quad Q8400 and Athlon II X2 245. 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 Q8400 and Athlon II X2 245 technologies aimed at improving security, for example, by protecting against hacks.

TXT-no data
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Quad Q8400 and Athlon II X2 245 are enumerated here.

VT-x+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Quad Q8400 and Athlon II X2 245. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1, DDR2, DDR3DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)On certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Core 2 Quad Q8400 and Athlon II X2 245.

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.

Core 2 Quad Q8400 1.30
+85.7%
Athlon II X2 245 0.70

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 2068
+86.3%
Athlon II X2 245 1110

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
+10.4%
Athlon II X2 245 297

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 897
+74.2%
Athlon II X2 245 515

Gaming performance

Pros & cons summary


Performance score 1.30 0.70
Recency 19 April 2009 23 July 2009
Physical cores 4 2
Threads 4 2
Power consumption (TDP) 95 Watt 65 Watt

Core 2 Quad Q8400 has a 85.7% higher aggregate performance score, and 100% more physical cores and 100% more threads.

Athlon II X2 245, on the other hand, has an age advantage of 3 months, and 46.2% lower power consumption.

The Core 2 Quad Q8400 is our recommended choice as it beats the Athlon II X2 245 in performance tests.


Should you still have questions on choice between Core 2 Quad Q8400 and Athlon II X2 245, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core 2 Quad Q8400
Core 2 Quad Q8400
AMD Athlon II X2 245
Athlon II X2 245

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

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


4 1346 votes

Rate Core 2 Quad Q8400 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.5 325 votes

Rate Athlon II X2 245 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core 2 Quad Q8400 or Athlon II X2 245, agree or disagree with our judgements, or report an error or mismatch.