Ryzen 9 7900 vs i7-3960X

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Aggregate performance score

Core i7-3960X
2011
6 cores / 12 threads, 130 Watt
5.48
Ryzen 9 7900
2023
12 cores / 24 threads, 65 Watt
31.68
+478%

Ryzen 9 7900 outperforms Core i7-3960X by a whopping 478% based on our aggregate benchmark results.

Primary details

Comparing Core i7-3960X and Ryzen 9 7900 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1150129
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.4065.41
Market segmentDesktop processorDesktop processor
SeriesCore i7 (Desktop)no data
Architecture codenameSandy Bridge-E (2011−2013)Raphael (Zen4) (2022−2023)
Release date14 November 2011 (12 years ago)14 January 2023 (1 year ago)
Launch price (MSRP)$861$429

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 9 7900 has 16253% better value for money than i7-3960X.

Detailed specifications

Core i7-3960X and Ryzen 9 7900 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 speed3.3 GHz3.7 GHz
Boost clock speed3.9 GHz5.4 GHz
Bus rate5 GT/sno data
L1 cache64 KB (per core)64K (per core)
L2 cache256 KB (per core)1 MB (per core)
L3 cache15 MB (shared)64 MB (shared)
Chip lithography32 nm5 nm
Die size435 mm22x 71 mm2
Maximum core temperatureno data95 °C
Maximum case temperature (TCase)67 °C47 °C
Number of transistors2,270 million13,140 million
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier++

Compatibility

Information on Core i7-3960X and Ryzen 9 7900 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 configuration11
SocketFCLGA2011AM5
Power consumption (TDP)130 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3960X and Ryzen 9 7900. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2, Intel® AVX5 nm, 0.650 - 1.475V
AES-NI++
AVX++
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
Idle States+no data
Thermal Monitoring+-
Smart Response+no data
Demand Based Switching-no data
StatusDiscontinuedno data
Precision Boost 2no data+

Security technologies

Core i7-3960X and Ryzen 9 7900 technologies aimed at improving security, for example, by protecting against hacks.

TXT-no data
EDB+no data
Identity Protection+-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3960X and Ryzen 9 7900 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 Core i7-3960X and Ryzen 9 7900. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5-5200
Maximum memory size64 GBno data
Max memory channels4no data
Maximum memory bandwidth51.2 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon Graphics (Ryzen 7000)

Peripherals

Specifications and connection of peripherals supported by Core i7-3960X and Ryzen 9 7900.

PCIe version2.05.0
PCI Express lanes4024

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.

i7-3960X 5.48
Ryzen 9 7900 31.68
+478%

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.

i7-3960X 8446
Ryzen 9 7900 48844
+478%

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.

i7-3960X 668
Ryzen 9 7900 2853
+327%

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.

i7-3960X 3218
Ryzen 9 7900 16843
+423%

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i7-3960X 5014
Ryzen 9 7900 8339
+66.3%

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i7-3960X 27190
Ryzen 9 7900 60934
+124%

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i7-3960X 8330
Ryzen 9 7900 19451
+134%

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i7-3960X 5.12
Ryzen 9 7900 2.98
+71.8%

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i7-3960X 11
Ryzen 9 7900 45
+331%

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

i7-3960X 1158
Ryzen 9 7900 4020
+247%

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

i7-3960X 159
Ryzen 9 7900 315
+98.1%

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i7-3960X 1.52
Ryzen 9 7900 3.68
+142%

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i7-3960X 5.2
Ryzen 9 7900 21.5
+313%

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i7-3960X 4205
Ryzen 9 7900 10154
+142%

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i7-3960X 55
Ryzen 9 7900 207
+278%

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i7-3960X 173
Ryzen 9 7900 356
+105%

Gaming performance

Pros & cons summary


Performance score 5.48 31.68
Recency 14 November 2011 14 January 2023
Physical cores 6 12
Threads 12 24
Chip lithography 32 nm 5 nm
Power consumption (TDP) 130 Watt 65 Watt

Ryzen 9 7900 has a 478.1% higher aggregate performance score, an age advantage of 11 years, 100% more physical cores and 100% more threads, a 540% more advanced lithography process, and 100% lower power consumption.

The Ryzen 9 7900 is our recommended choice as it beats the Core i7-3960X in performance tests.


Should you still have questions on choice between Core i7-3960X and Ryzen 9 7900, ask them in Comments section, and we shall answer.

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Intel Core i7-3960X
Core i7-3960X
AMD Ryzen 9 7900
Ryzen 9 7900

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