Ryzen 9 7900X vs Ryzen 7 3800XT

VS

Aggregate performance score

Ryzen 7 3800XT
2020
8 cores / 16 threads, 105 Watt
14.86
Ryzen 9 7900X
2022
12 cores / 24 threads, 170 Watt
32.51
+119%

Ryzen 9 7900X outperforms Ryzen 7 3800XT by a whopping 119% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 7 3800XT and Ryzen 9 7900X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking476124
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation20.78no data
Market segmentDesktop processorDesktop processor
SeriesAMD Ryzen 7no data
Power efficiency13.3818.09
Architecture codenameMatisse (Zen 2) (2019−2020)Raphael (Zen4) (2022−2023)
Release date7 July 2020 (4 years ago)27 September 2022 (2 years ago)
Launch price (MSRP)$399no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 7 3800XT and Ryzen 9 7900X 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 cores8 (Octa-Core)12 (Dodeca-Core)
Threads1624
Base clock speed3.8 GHz4.7 GHz
Boost clock speed4.7 GHz5.6 GHz
L1 cache96K (per core)64K (per core)
L2 cache512K (per core)1 MB (per core)
L3 cache32 MB64 MB (shared)
Chip lithography7 nm, 12 nm5 nm
Die size74 mm22x 70 (CCD) mm2 + 122 (I/O) mm2
Maximum core temperature95 °C95 °C
Maximum case temperature (TCase)95 °C47 °C
Number of transistors3,800 millionCCD: 6,5 Mrd + IOD: 3,4 Mrd Million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on Ryzen 7 3800XT and Ryzen 9 7900X 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
SocketAM4AM5
Power consumption (TDP)105 Watt170 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 3800XT and Ryzen 9 7900X. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME5 nm (CCD), 6 nm (I/O) nm, 0.650 - 1.475V
AES-NI++
FMA+-
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 3800XT and Ryzen 9 7900X are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 3800XT and Ryzen 9 7900X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR5-5200
Maximum memory size128 GBno data
Max memory channels2no data
Maximum memory bandwidth51.196 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card-AMD Radeon Graphics (Ryzen 7000)

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 3800XT and Ryzen 9 7900X.

PCIe version4.05.0
PCI Express lanesno data24

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 7 3800XT 14.86
Ryzen 9 7900X 32.51
+119%

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.

Ryzen 7 3800XT 23606
Ryzen 9 7900X 51636
+119%

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.

Ryzen 7 3800XT 1769
Ryzen 9 7900X 2953
+66.9%

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.

Ryzen 7 3800XT 8555
Ryzen 9 7900X 17920
+109%

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.

Ryzen 7 3800XT 6035
Ryzen 9 7900X 8623
+42.9%

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.

Ryzen 7 3800XT 40528
Ryzen 9 7900X 68580
+69.2%

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.

Ryzen 7 3800XT 3.74
Ryzen 9 7900X 1.8
+108%

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.

Ryzen 7 3800XT 24
Ryzen 9 7900X 55
+126%

Cinebench 15 64-bit multi-core

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

Ryzen 7 3800XT 2230
Ryzen 9 7900X 4821
+116%

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.

Ryzen 7 3800XT 219
Ryzen 9 7900X 323
+47.5%

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.

Ryzen 7 3800XT 2.36
Ryzen 9 7900X 3.83
+62.3%

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.

Ryzen 7 3800XT 11.4
Ryzen 9 7900X 14.8
+29.8%

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.

Ryzen 7 3800XT 7467
Ryzen 9 7900X 17225
+131%

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.  

Ryzen 7 3800XT 119
Ryzen 9 7900X 241
+103%

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.  

Ryzen 7 3800XT 271
Ryzen 9 7900X 376
+38.7%

Geekbench 5.5 Multi-Core

Ryzen 7 3800XT 8948
Ryzen 9 7900X 20668
+131%

Blender(-)

Ryzen 7 3800XT 223
+110%
Ryzen 9 7900X 106

Geekbench 5.5 Single-Core

Ryzen 7 3800XT 1353
Ryzen 9 7900X 2294
+69.5%

7-Zip Single

Ryzen 7 3800XT 5516
Ryzen 9 7900X 8269
+49.9%

7-Zip

Ryzen 7 3800XT 59247
Ryzen 9 7900X 127195
+115%

WebXPRT 3

Ryzen 7 3800XT 249
Ryzen 9 7900X 383
+53.8%

Gaming performance

Pros & cons summary


Performance score 14.86 32.51
Recency 7 July 2020 27 September 2022
Physical cores 8 12
Threads 16 24
Chip lithography 7 nm 5 nm
Power consumption (TDP) 105 Watt 170 Watt

Ryzen 7 3800XT has 61.9% lower power consumption.

Ryzen 9 7900X, on the other hand, has a 118.8% higher aggregate performance score, an age advantage of 2 years, 50% more physical cores and 50% more threads, and a 40% more advanced lithography process.

The Ryzen 9 7900X is our recommended choice as it beats the Ryzen 7 3800XT in performance tests.


Should you still have questions on choice between Ryzen 7 3800XT and Ryzen 9 7900X, ask them in Comments section, and we shall answer.

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AMD Ryzen 7 3800XT
Ryzen 7 3800XT
AMD Ryzen 9 7900X
Ryzen 9 7900X

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Community ratings

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