Phenom II X6 1045T vs Xeon E5649

Aggregate performance score

Xeon E5649
2011
6 cores / 12 threads, 80 Watt
3.72
+78%

Xeon E5649 outperforms Phenom II X6 1045T by an impressive 78% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5649 and Phenom II X6 1045T processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking15051912
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.560.22
Market segmentServerDesktop processor
Power efficiency4.242.01
Architecture codenameWestmere-EP (2010−2011)Thuban (2010)
Release date14 February 2011 (13 years ago)1 September 2010 (14 years ago)
Launch price (MSRP)$45$175

Cost-effectiveness evaluation

Performance per price, higher is better.

Xeon E5649 has 609% better value for money than Phenom II X6 1045T.

Detailed specifications

Xeon E5649 and Phenom II X6 1045T 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)6 (Hexa-Core)
Threads126
Base clock speed2.53 GHz2.7 GHz
Boost clock speed2.93 GHz3.2 GHz
L1 cache64 KB (per core)128 KB (per core)
L2 cache256 KB (per core)512 KB (per core)
L3 cache12288 KB (shared)6 MB (shared)
Chip lithography32 nm45 nm
Die size239 mm2346 mm2
Maximum core temperature76 °Cno data
Number of transistors1,170 million904 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Xeon E5649 and Phenom II X6 1045T 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
SocketFCLGA1366AM3
Power consumption (TDP)80 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5649 and Phenom II X6 1045T. 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 E5649 and Phenom II X6 1045T 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 E5649 and Phenom II X6 1045T are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5649 and Phenom II X6 1045T. 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+-

Peripherals

Specifications and connection of peripherals supported by Xeon E5649 and Phenom II X6 1045T.

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.

Xeon E5649 3.72
+78%
Phenom II X6 1045T 2.09

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.

Xeon E5649 5686
+77.7%
Phenom II X6 1045T 3200

Gaming performance

Pros & cons summary


Performance score 3.72 2.09
Recency 14 February 2011 1 September 2010
Threads 12 6
Chip lithography 32 nm 45 nm
Power consumption (TDP) 80 Watt 95 Watt

Xeon E5649 has a 78% higher aggregate performance score, an age advantage of 5 months, 100% more threads, a 40.6% more advanced lithography process, and 18.8% lower power consumption.

The Xeon E5649 is our recommended choice as it beats the Phenom II X6 1045T in performance tests.

Be aware that Xeon E5649 is a server/workstation processor while Phenom II X6 1045T is a desktop one.


Should you still have questions on choice between Xeon E5649 and Phenom II X6 1045T, ask them in Comments section, and we shall answer.

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Intel Xeon E5649
Xeon E5649
AMD Phenom II X6 1045T
Phenom II X6 1045T

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Community ratings

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Questions & comments

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