Ryzen 7 7745HX vs Ryzen 9 7900

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Aggregate performance score

Ryzen 9 7900
2023
12 cores / 24 threads, 65 Watt
30.71
+49.1%
Ryzen 7 7745HX
2023
8 cores / 16 threads, 55 Watt
20.60

Ryzen 9 7900 outperforms Ryzen 7 7745HX by a considerable 49% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 7900 and Ryzen 7 7745HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking134271
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation65.60no data
Market segmentDesktop processorLaptop
Power efficiency44.7135.45
Architecture codenameRaphael (Zen4) (2022−2023)Dragon Range (Zen 4) (2023)
Release date14 January 2023 (1 year ago)4 January 2023 (1 year ago)
Launch price (MSRP)$429no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 9 7900 and Ryzen 7 7745HX 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 cores12 (Dodeca-Core)8 (Octa-Core)
Threads2416
Base clock speed3.7 GHz3.6 GHz
Boost clock speed5.4 GHz5.1 GHz
L1 cache64K (per core)64K (per core)
L2 cache1 MB (per core)1 MB (per core)
L3 cache64 MB (shared)32 MB (shared)
Chip lithography5 nmCCD = 5 nm, I/O = 6 nm
Die size2x 71 mm271 mm2
Maximum core temperature95 °C100 °C
Maximum case temperature (TCase)47 °Cno data
Number of transistors13,140 million6,570 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier++

Compatibility

Information on Ryzen 9 7900 and Ryzen 7 7745HX 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
SocketAM5FL1
Power consumption (TDP)65 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7900 and Ryzen 7 7745HX. You'll probably need this information if you require some particular technology.

Instruction set extensions5 nm, 0.650 - 1.475VMMX, 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++
FMA-+
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7900 and Ryzen 7 7745HX are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7900 and Ryzen 7 7745HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5-5200DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
AMD Radeon Graphics (Ryzen 7000) ( - 2200 MHz)AMD Radeon 610M (400 - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7900 and Ryzen 7 7745HX.

PCIe version5.05.0
PCI Express lanes2428

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 9 7900 30.71
+49.1%
Ryzen 7 7745HX 20.60

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 9 7900 48777
+49.1%
Ryzen 7 7745HX 32722

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 9 7900 2859
+8.3%
Ryzen 7 7745HX 2639

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 9 7900 16836
+30.7%
Ryzen 7 7745HX 12882

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 9 7900 8339
+4.2%
Ryzen 7 7745HX 8006

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 9 7900 60934
+11.3%
Ryzen 7 7745HX 54762

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 9 7900 19451
+14.9%
Ryzen 7 7745HX 16933

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 9 7900 2.98
Ryzen 7 7745HX 2.28
+30.7%

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 9 7900 45
+29.2%
Ryzen 7 7745HX 35

Cinebench 15 64-bit multi-core

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

Ryzen 9 7900 4020
+34.6%
Ryzen 7 7745HX 2986

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 9 7900 315
+7%
Ryzen 7 7745HX 295

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 9 7900 3.68
+5.1%
Ryzen 7 7745HX 3.5

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 9 7900 21.5
+31.1%
Ryzen 7 7745HX 16.4

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 9 7900 10154
Ryzen 7 7745HX 14476
+42.6%

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 9 7900 207
+19.5%
Ryzen 7 7745HX 173

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 9 7900 356
Ryzen 7 7745HX 359
+0.8%

Geekbench 5.5 Multi-Core

Ryzen 9 7900 17880
+38.4%
Ryzen 7 7745HX 12920

Blender(-)

Ryzen 9 7900 125
Ryzen 7 7745HX 172
+37.2%

Geekbench 5.5 Single-Core

Ryzen 9 7900 2203
+7.3%
Ryzen 7 7745HX 2054

7-Zip Single

Ryzen 9 7900 7936
+9.3%
Ryzen 7 7745HX 7260

7-Zip

Ryzen 9 7900 112881
+42.1%
Ryzen 7 7745HX 79413

WebXPRT 3

Ryzen 9 7900 366
+5.5%
Ryzen 7 7745HX 347

CrossMark Overall

Ryzen 9 7900 2322
+10.4%
Ryzen 7 7745HX 2103

WebXPRT 4 Overall

Ryzen 9 7900 302
+7.3%
Ryzen 7 7745HX 282

Blender v3.3 Classroom CPU(-)

Ryzen 9 7900 199
Ryzen 7 7745HX 275
+37.9%

Gaming performance

Pros & cons summary


Performance score 30.71 20.60
Integrated graphics card 4.43 2.85
Physical cores 12 8
Threads 24 16
Power consumption (TDP) 65 Watt 55 Watt

Ryzen 9 7900 has a 49.1% higher aggregate performance score, 55.4% faster integrated GPU, and 50% more physical cores and 50% more threads.

Ryzen 7 7745HX, on the other hand, has 18.2% lower power consumption.

The Ryzen 9 7900 is our recommended choice as it beats the Ryzen 7 7745HX in performance tests.

Note that Ryzen 9 7900 is a desktop processor while Ryzen 7 7745HX is a notebook one.


Should you still have questions on choice between Ryzen 9 7900 and Ryzen 7 7745HX, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 7900
Ryzen 9 7900
AMD Ryzen 7 7745HX
Ryzen 7 7745HX

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