Ryzen Threadripper PRO 3995WX vs i7-965

Primary details

Comparing Core i7-965 and Ryzen Threadripper PRO 3995WX processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1818	26
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.45	5.36
Market segment	Desktop processor	Server
Series	no data	AMD Ryzen Threadripper
Architecture codename	Bloomfield (2008−2010)	Matisse (2019−2020)
Release date	November 2008 (15 years ago)	14 June 2020 (4 years ago)
Launch price (MSRP)	$1,509	$5,500

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen Threadripper PRO 3995WX has 119% better value for money than i7-965.

Detailed specifications

Core i7-965 and Ryzen Threadripper PRO 3995WX 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)	64 (Tetrahexaconta-Core)
Threads	8	128
Base clock speed	3.2 GHz	2.7 GHz
Boost clock speed	3.46 GHz	4.2 GHz
Bus rate	6.4 GT/s	no data
Multiplier	no data	27
L1 cache	64 KB (per core)	4 MB
L2 cache	256 KB (per core)	32 MB
L3 cache	8 MB (shared)	256 MB
Chip lithography	45 nm	7 nm, 12 nm
Die size	263 mm2	74 mm2
Maximum core temperature	68 °C	95 °C
Maximum case temperature (TCase)	no data	95 °C
Number of transistors	731 million	38740 Million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	+	+

Compatibility

Information on Core i7-965 and Ryzen Threadripper PRO 3995WX 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	1	1
Socket	FCLGA1366	sWRX8
Power consumption (TDP)	130 Watt	280 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-965 and Ryzen Threadripper PRO 3995WX. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, AVX2, BMI1, BMI2, SHA, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT, Precision Boost 2, XFR 2
AES-NI	-	+
AVX	-	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	1.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Demand Based Switching	-	no data
PAE	36 Bit	no data
Status	Discontinued	no data
Precision Boost 2	no data	+

Security technologies

Core i7-965 and Ryzen Threadripper PRO 3995WX 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 i7-965 and Ryzen Threadripper PRO 3995WX are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-965 and Ryzen Threadripper PRO 3995WX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR4-3200
Maximum memory size	24 GB	2 TiB
Max memory channels	3	no data
Maximum memory bandwidth	25.6 GB/s	204.8 GB/s

Peripherals

Specifications and connection of peripherals supported by Core i7-965 and Ryzen Threadripper PRO 3995WX.

PCIe version	no data	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.

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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.

Pros & cons summary

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Performance score	2.21	54.11
Physical cores	4	64
Threads	8	128
Chip lithography	45 nm	7 nm
Power consumption (TDP)	130 Watt	280 Watt

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Should you still have questions on choice between Core i7-965 and Ryzen Threadripper PRO 3995WX, ask them in Comments section, and we shall answer.

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