Ryzen 9 5900X vs Xeon E5649

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Aggregate performance score

Xeon E5649
2011
6 cores / 12 threads, 80 Watt
3.72
Ryzen 9 5900X
2020
12 cores / 24 threads, 105 Watt
25.56
+587%

Ryzen 9 5900X outperforms Xeon E5649 by a whopping 587% based on our aggregate benchmark results.

Primary details

Comparing Xeon E5649 and Ryzen 9 5900X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1505199
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.5631.05
Market segmentServerDesktop processor
Seriesno dataAMD Ryzen 9
Power efficiency4.2422.20
Architecture codenameWestmere-EP (2010−2011)Vermeer (Zen3) (2020−2022)
Release date14 February 2011 (13 years ago)8 October 2020 (4 years ago)
Launch price (MSRP)$45$549

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 5900X has 1890% better value for money than Xeon E5649.

Detailed specifications

Xeon E5649 and Ryzen 9 5900X 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)12 (Dodeca-Core)
Threads1224
Base clock speed2.53 GHz3.7 GHz
Boost clock speed2.93 GHz4.8 GHz
Multiplierno data37
L1 cache64 KB (per core)768 KB
L2 cache256 KB (per core)6 MB
L3 cache12288 KB (shared)64 MB
Chip lithography32 nm7 nm, 12 nm
Die size239 mm22x 74 mm2(CCD) + 125 mm2 (IOD)
Maximum core temperature76 °Cno data
Maximum case temperature (TCase)no data95 °C
Number of transistors1,170 million0 Million
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier-+

Compatibility

Information on Xeon E5649 and Ryzen 9 5900X 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
SocketFCLGA1366AM4
Power consumption (TDP)80 Watt105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5649 and Ryzen 9 5900X. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.286x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2
AES-NI++
AVX-+
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
Precision Boost 2no data+

Security technologies

Xeon E5649 and Ryzen 9 5900X 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 Ryzen 9 5900X 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 E5649 and Ryzen 9 5900X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR4-3200
Maximum memory size288 GB128 GB
Max memory channels32
Maximum memory bandwidth32 GB/s51.196 GB/s
ECC memory support+-

Peripherals

Specifications and connection of peripherals supported by Xeon E5649 and Ryzen 9 5900X.

PCIe version2.04.0

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
Ryzen 9 5900X 25.56
+587%

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
Ryzen 9 5900X 39115
+588%

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.

Xeon E5649 477
Ryzen 9 5900X 2209
+363%

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.

Xeon E5649 2953
Ryzen 9 5900X 11967
+305%

Gaming performance

Pros & cons summary


Performance score 3.72 25.56
Recency 14 February 2011 8 October 2020
Physical cores 6 12
Threads 12 24
Chip lithography 32 nm 7 nm
Power consumption (TDP) 80 Watt 105 Watt

Xeon E5649 has 31.3% lower power consumption.

Ryzen 9 5900X, on the other hand, has a 587.1% higher aggregate performance score, an age advantage of 9 years, 100% more physical cores and 100% more threads, and a 357.1% more advanced lithography process.

The Ryzen 9 5900X is our recommended choice as it beats the Xeon E5649 in performance tests.

Be aware that Xeon E5649 is a server/workstation processor while Ryzen 9 5900X is a desktop one.


Should you still have questions on choice between Xeon E5649 and Ryzen 9 5900X, ask them in Comments section, and we shall answer.

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Intel Xeon E5649
Xeon E5649
AMD Ryzen 9 5900X
Ryzen 9 5900X

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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

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