Ryzen Threadripper PRO 3945WX vs Xeon L5609

Primary details

Comparing Xeon L5609 and Ryzen Threadripper PRO 3945WX processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1780	225
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.04	8.71
Market segment	Server	Server
Series	no data	AMD Ryzen Threadripper
Architecture codename	Westmere-EP (2010−2011)	Matisse (2019−2020)
Release date	16 March 2010 (14 years ago)	14 July 2020 (3 years ago)
Current price	$2360	$1961

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen Threadripper PRO 3945WX has 21675% better value for money than Xeon L5609.

Detailed specifications

Xeon L5609 and Ryzen Threadripper PRO 3945WX 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 cores	4 (Quad-Core)	12 (Dodeca-Core)
Threads	4	24
Base clock speed	1.86 GHz	4 GHz
Boost clock speed	1.86 GHz	4.3 GHz
L1 cache	64 KB (per core)	64K (per core)
L2 cache	256 KB (per core)	512K (per core)
L3 cache	12 MB (shared)	64 MB
Chip lithography	32 nm	7 nm, 12 nm
Die size	239 mm2	74 mm2
Maximum core temperature	63 °C	no data
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	1,170 million	3,800 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	No	Yes

Compatibility

Information on Xeon L5609 and Ryzen Threadripper PRO 3945WX 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 configuration	2	1
Socket	FCLGA1366,LGA1366	TR4
Power consumption (TDP)	40 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon L5609 and Ryzen Threadripper PRO 3945WX. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
AES-NI	+	+
AVX	no data	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	-	no data
Hyper-Threading Technology	-	no data
Idle States	+	no data
Thermal Monitoring	-	no data
Demand Based Switching	+	no data
PAE	40 Bit	no data
Status	Discontinued	no data

Security technologies

Xeon L5609 and Ryzen Threadripper PRO 3945WX 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 L5609 and Ryzen Threadripper PRO 3945WX are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon L5609 and Ryzen Threadripper PRO 3945WX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-3200
Maximum memory size	288 GB	2 TiB
Max memory channels	3	no data
Maximum memory bandwidth	25.6 GB/s	204.8 GB/s
ECC memory support	+	no data

Peripherals

Specifications and connection of peripherals supported by Xeon L5609 and Ryzen Threadripper PRO 3945WX.

PCIe version	2.0	4.0
PCI Express lanes	no data	128

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.

Ryzen Threadripper PRO 3945WX outperforms Xeon L5609 by 917% based on our aggregate benchmark results.

---

Pros & cons summary

---

Performance score	2.13	21.66
Recency	16 March 2010	14 July 2020
Physical cores	4	12
Threads	4	24
Chip lithography	32 nm	7 nm
Power consumption (TDP)	40 Watt	280 Watt

---

Should you still have questions on choice between Xeon L5609 and Ryzen Threadripper PRO 3945WX, 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.

---