Ryzen 9 7945HX vs Ryzen 7 1800X

Aggregate performance score

Ryzen 7 1800X
2017
8 cores / 16 threads, 95 Watt
10.69
Ryzen 9 7945HX
2023
16 cores / 32 threads, 55 Watt
35.72
+234%

Ryzen 9 7945HX outperforms Ryzen 7 1800X by a whopping 234% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 7 1800X and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking748108
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation3.35no data
Market segmentDesktop processorLaptop
SeriesAMD Ryzen 7no data
Power efficiency10.2659.22
Architecture codenameZen (2017−2020)Dragon Range-HX (Zen 4) (2023−2024)
Release date22 February 2017 (7 years ago)4 January 2023 (1 year ago)
Launch price (MSRP)$499no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 7 1800X and Ryzen 9 7945HX 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)16 (Hexadeca-Core)
Threads1632
Base clock speed3.6 GHz2.5 GHz
Boost clock speed4 GHz5.4 GHz
Bus rate4 × 8 GT/sno data
Multiplier36no data
L1 cache768 KB64K (per core)
L2 cache4096 KB1 MB (per core)
L3 cache16384 KB64 MB (shared)
Chip lithography14 nmCCD = 5 nm, I/O = 6 nm
Die size213 mm22x 71 mm2
Maximum core temperatureno data100 °C
Number of transistors4800 Million13,140 million
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier++

Compatibility

Information on Ryzen 7 1800X and Ryzen 9 7945HX 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 configuration1 (Uniprocessor)1
SocketAM4FL1
Power consumption (TDP)95 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 1800X and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.

Instruction set extensionsXFR, FMA3, SSE 4.2, AVX2, SMTMMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI++
FMAFMA3+
AVX++
XFR+-
SenseMI+-
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 1800X and Ryzen 9 7945HX are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 1800X and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR5
Maximum memory size64 GBno data
Max memory channels2no data
Maximum memory bandwidth42.671 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card-AMD Radeon 610M

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 1800X and Ryzen 9 7945HX.

PCIe versionn/a5.0
PCI Express lanes2028

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 1800X 10.69
Ryzen 9 7945HX 35.72
+234%

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 1800X 16354
Ryzen 9 7945HX 54663
+234%

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 1800X 1138
Ryzen 9 7945HX 2733
+140%

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 1800X 5664
Ryzen 9 7945HX 15881
+180%

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 1800X 5062
Ryzen 9 7945HX 8462
+67.2%

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 1800X 32833
Ryzen 9 7945HX 71611
+118%

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.

Ryzen 7 1800X 9585
Ryzen 9 7945HX 19820
+107%

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 1800X 4.6
Ryzen 9 7945HX 1.99
+131%

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 1800X 18
Ryzen 9 7945HX 62
+242%

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 1800X 1618
Ryzen 9 7945HX 5521
+241%

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 1800X 161
Ryzen 9 7945HX 308
+91.5%

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 1800X 1.79
Ryzen 9 7945HX 3.65
+104%

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 1800X 9.7
Ryzen 9 7945HX 27.7
+186%

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 1800X 84
Ryzen 9 7945HX 236
+180%

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 1800X 179
Ryzen 9 7945HX 369
+106%

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 1800X 3967
Ryzen 9 7945HX 14532
+266%

Geekbench 5.5 Multi-Core

Ryzen 7 1800X 6545
Ryzen 9 7945HX 19802
+203%

Blender(-)

Ryzen 7 1800X 295
+214%
Ryzen 9 7945HX 94

Geekbench 5.5 Single-Core

Ryzen 7 1800X 1023
Ryzen 9 7945HX 2124
+108%

7-Zip Single

Ryzen 7 1800X 4062
Ryzen 9 7945HX 7381
+81.7%

7-Zip

Ryzen 7 1800X 40776
Ryzen 9 7945HX 140471
+244%

WebXPRT 3

Ryzen 7 1800X 187
Ryzen 9 7945HX 351
+88.2%

Gaming performance

Pros & cons summary


Performance score 10.69 35.72
Recency 22 February 2017 4 January 2023
Physical cores 8 16
Threads 16 32
Power consumption (TDP) 95 Watt 55 Watt

Ryzen 9 7945HX has a 234.1% higher aggregate performance score, an age advantage of 5 years, 100% more physical cores and 100% more threads, and 72.7% lower power consumption.

The Ryzen 9 7945HX is our recommended choice as it beats the Ryzen 7 1800X in performance tests.

Note that Ryzen 7 1800X is a desktop processor while Ryzen 9 7945HX is a notebook one.


Should you still have questions on choice between Ryzen 7 1800X and Ryzen 9 7945HX, ask them in Comments section, and we shall answer.

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AMD Ryzen 7 1800X
Ryzen 7 1800X
AMD Ryzen 9 7945HX
Ryzen 9 7945HX

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Community ratings

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