Phenom II X4 945 (95W) vs Xeon X5660

VS

Primary details

Comparing Xeon X5660 and Phenom II X4 945 (95W) processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1467not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.05no data
Market segmentServerDesktop processor
Power efficiency3.78no data
Architecture codenameWestmere-EP (2010−2011)Deneb (2009−2011)
Release date16 March 2010 (14 years ago)22 July 2009 (15 years ago)
Launch price (MSRP)$33no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon X5660 and Phenom II X4 945 (95W) 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 cores6 (Hexa-Core)4 (Quad-Core)
Threads124
Base clock speed2.8 GHz3 GHz
Boost clock speed3.2 GHz3 GHz
L1 cache64 KB (per core)128 KB (per core)
L2 cache256 KB (per core)512 KB (per core)
L3 cache12 MB (shared)6 MB (shared)
Chip lithography32 nm45 nm
Die size239 mm2258 mm2
Maximum core temperature81 °Cno data
Number of transistors1,170 million758 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Xeon X5660 and Phenom II X4 945 (95W) 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 configuration21
SocketFCLGA1366,LGA1366AM3
Power consumption (TDP)95 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon X5660 and Phenom II X4 945 (95W). You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2no data
AES-NI+-
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology1.0no data
Hyper-Threading Technology+no data
Idle States+no data
Demand Based Switching+no data
PAE40 Bitno data

Security technologies

Xeon X5660 and Phenom II X4 945 (95W) 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 Xeon X5660 and Phenom II X4 945 (95W) are enumerated here.

AMD-V-+
VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon X5660 and Phenom II X4 945 (95W). Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size288 GBno data
Max memory channels3no data
Maximum memory bandwidth32 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataOn certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Xeon X5660 and Phenom II X4 945 (95W).

PCIe version2.02.0

Pros & cons summary


Recency 16 March 2010 22 July 2009
Physical cores 6 4
Threads 12 4
Chip lithography 32 nm 45 nm

Xeon X5660 has an age advantage of 7 months, 50% more physical cores and 200% more threads, and a 40.6% more advanced lithography process.

We couldn't decide between Xeon X5660 and Phenom II X4 945 (95W). We've got no test results to judge.

Be aware that Xeon X5660 is a server/workstation processor while Phenom II X4 945 (95W) is a desktop one.


Should you still have questions on choice between Xeon X5660 and Phenom II X4 945 (95W), 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 Xeon X5660
Xeon X5660
AMD Phenom II X4 945 (95W)
Phenom II X4 945 (95W)

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.


4.2 120 votes

Rate Xeon X5660 on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
4 721 vote

Rate Phenom II X4 945 (95W) on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Xeon X5660 or Phenom II X4 945 (95W), agree or disagree with our judgements, or report an error or mismatch.