AMD Ryzen 9 7900X vs AMD Ryzen 9 3900X

VS
Performance
Ryzen 9 7900X46% better
27,73175% of 36,991
Ryzen 9 3900X
18,93251% of 36,991

The Ryzen 9 7900X has 46% better performance than the Ryzen 9 3900X for the 3DMark 11 Performance Physics benchmark.

Performance per dollar
Ryzen 9 7900X33% better
50.5142% of 121.53
Ryzen 9 3900X
37.9431% of 121.53

The Ryzen 9 7900X has 33% better value for the money than the Ryzen 9 3900X for the 3DMark 11 Performance Physics benchmark.

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Summary

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About the AMD Ryzen 9 7900X CPU

The AMD Ryzen 9 7900X is a 12-core (24-thread) processor built for the desktop CPU market. It launched in Q3 2022 with a suggested retail price of $549. It is part of AMD's Ryzen 9 lineup, which is based on the Zen 4 microarchitecture. The 7900X is compatible with AMD Socket AM5 motherboards and is fabricated on TSMC's 5 nm manufacturing process. It features the Radeon Graphics integrated graphics solution.

Memory and Cache

The Ryzen 9 7900X supports DDR5 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Ryzen 9 7900X has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 64 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 1 MB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 64 MB.

Cores and Clock Speeds

The Ryzen 9 7900X features 12 total cores which can process 24 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 4.7 GHz, and it can boost up to 5.6 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is unlocked, enabling overclocking for those seeking to push the CPU's performance further.

Integrated Graphics

The Ryzen 9 7900X includes an integrated graphics solution called Radeon Graphics. This graphics processor is directly integrated into the CPU and is not as powerful as a dedicated graphics card. While integrated graphics can handle basic tasks like web browsing and office applications, it is not suitable for more demanding activities such as gaming or video editing, where a dedicated graphics card offers superior performance.

Benchmark Performance & Value

The Ryzen 9 7900X has the 14th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 74.97% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D. Its 27,731 score and $549 launch price (MSRP) gives it a performance per dollar of 50.51. This is the 47th best in value for the 3DMark 11 Perf. Physics benchmark.

About the AMD Ryzen 9 3900X CPU

The AMD Ryzen 9 3900X is a 12-core (24-thread) processor built for the desktop CPU market. It launched in Q3 2019 with a suggested retail price of $499. It is part of AMD's Ryzen 9 lineup, which is based on the Zen 2 microarchitecture. The 3900X is compatible with AMD Socket AM4 motherboards and is fabricated on TSMC's 7 nm manufacturing process.

Memory and Cache

The Ryzen 9 3900X supports DDR4 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Ryzen 9 3900X has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 64 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 512 KB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 64 MB.

Cores and Clock Speeds

The Ryzen 9 3900X features 12 total cores which can process 24 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 3.8 GHz, and it can boost up to 4.6 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is unlocked, enabling overclocking for those seeking to push the CPU's performance further.

Integrated Graphics

The Ryzen 9 3900X does not include an integrated graphics solution. A dedicated graphics card will be required if you require a monitor with your computer.

Benchmark Performance & Value

The Ryzen 9 3900X has the 80th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 51.18% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D. Its 18,932 score and $499 launch price (MSRP) gives it a performance per dollar of 37.94. This is the 86th best in value for the 3DMark 11 Perf. Physics benchmark.

General Info

General overview of the CPU, including details like its manufacturer, release date, launch price, and current production status.

InfoRyzen 9 7900XRyzen 9 3900X
ManufacturerAMDAMD
SeriesRyzen 9Ryzen 9
Market SegmentDesktopDesktop
Release DateQ3 2022Q3 2019
Launch Price (MSRP)$549$499
Production StatusActiveActive
ShopCheck PriceCheck Price

Benchmark Performance

#
Performance
Ryzen 9 7900X46% better
27,73175% of 36,991
Ryzen 9 3900X
18,93251% of 36,991

The Ryzen 9 7900X has 46% better performance than the Ryzen 9 3900X for the 3DMark 11 Performance Physics benchmark.

The Ryzen 9 7900X is ranked 14th with a score of 27,731, and the Ryzen 9 3900X is ranked 80th with a score of 18,932.

Performance per dollar
Ryzen 9 7900X33% better
50.5142% of 121.53
Ryzen 9 3900X
37.9431% of 121.53

The Ryzen 9 7900X has 33% better value for the money than the Ryzen 9 3900X for the 3DMark 11 Performance Physics benchmark.

The Ryzen 9 7900X is ranked 47th with a performance per dollar of 50.51, and the Ryzen 9 3900X is ranked 86th with a performance per dollar of 37.94.

Relative Performance

The average score in the benchmark test can be compared to similar CPUs to assess relative performance. Generally, powerful CPUs tend to have higher scores.

Choose Baseline CPU:Ryzen 9 7900X or
CPUBenchmark Performance
Ryzen 7 9700X30,757+11%
Core i5-13600K30,419+10%
Ryzen 9 7900X27,731
Ryzen 7 5800X3D27,236-2%
Core i7-1270027,022-3%
Core i5-12400F19,436-30%
Core i9-9980XE19,237-31%
Ryzen 9 3900X18,932-32%
Ryzen 7 3800XT18,905-32%
Core i9-9900KS18,694-33%

Relative Value For Money

The average performance per dollar in the benchmark test can be compared to similar CPUs to assess relative value. A higher score implies a better value for your money.

Choose Baseline CPU:Ryzen 9 7900X or
CPUPerformance Per Dollar
Ryzen 9 7950X3D52.92+5%
Ryzen 7 5800X52.79+5%
Ryzen 9 7900X50.51
Ryzen 9 7950X50.42-0%
Core i9-1290046.85-7%
Ryzen 9 5900X38.33-24%
Core i7-9700K38.07-25%
Ryzen 9 3900X37.94-25%
Core i9-9900KS36.44-28%
Core i9-9900K35.38-30%

Benchmark Scores

This table showcases the average performance scores achieved by both CPUs across industry-standard benchmark tests. These scores provide a valuable insight into overall performance. Powerful CPUs tend to have higher scores.

  • Popular
BenchmarkRyzen 9 7900XRyzen 9 3900X
3DMark 11 Performance Physics
27,731
(+46.48%)
18,932
3DMark Time Spy CPU
15,959.5
(+33.85%)
11,923
Cinebench R15 Multi-Core
4,820.5
(+58.1%)
3,049
Cinebench R15 Single-Core
323
(+56.04%)
207
Geekbench 6.2 Multi-Core
17,964
(+80.54%)
9,950
Geekbench 6.2 Single-Core
2,957
(+72.92%)
1,710
CPU Mark Multi-Thread
51,843
(+58.8%)
32,647
CPU Mark Single-Thread
4,264
(+57.58%)
2,706
Benchmarks Source: Notebookcheck

Technical Specs

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Manufacturing Details

Information about the CPU's manufacturing like its foundry, process size, and transistor count.

SpecRyzen 9 7900XRyzen 9 3900X
ManufacturerAMDAMD
FoundryTSMCTSMC
Process Size5 nm7 nm
Transistors13,140 million7,600 million

Architecture

CPU architecture specs like its memory channels, memory support, and microarchitecture. Newer CPU architectures can minimize bottlenecks and improve execution efficiency using more advanced techniques.

SpecRyzen 9 7900XRyzen 9 3900X
SeriesRyzen 9Ryzen 9
MicroarchitectureZen 4Zen 2
CodenameRaphaelMatisse
Memory SupportDDR5DDR4
Memory ChannelsDual-channelDual-channel
ECC MemoryYesNo

Cores & Clock Speeds

Processing power information like its cores and clock speed. These specs impact how fast they can handle instructions and tasks. These have a strong impact on the CPU's performance.

SpecRyzen 9 7900XRyzen 9 3900X
Cores1212
Threads2424
Clock Speed4.7 GHz3.8 GHz
Turbo Clock5.6 GHz4.6 GHz
Base Clock100 MHz100 MHz
Multiplier47.0x38.0x
Multiplier UnlockedYesYes

Cache

CPU cache specs like its L1 & L2 cache. These provide the CPU with a small, but super-fast memory access. A larger cache can improve a CPU's performance.

SpecRyzen 9 7900XRyzen 9 3900X
L1 Cache64 KB64 KB
L2 Cache1 MB512 KB
L3 Cache64 MB64 MB

Compatibility & Power Consumption

Compatibility and power consumption information like its socket type, thermal design power, power limits. These can help verify the CPU's compatibility with other PC components.

SpecRyzen 9 7900XRyzen 9 3900X
SocketAMD Socket AM5AMD Socket AM4
PCI ExpressPCIe 5.0 x24PCIe 4.0 x24
Thermal Design Power (TDP)170 W105 W
Package Power Tracking (PPT)230 W142 W
Tcase Max47 °C95 °C
TJ Max100 °C--

Graphics, Features, & Extensions

Additional CPU features like its bundled coolers, integrated graphics, and extensions/technologies.

SpecRyzen 9 7900XRyzen 9 3900X
Integrated GraphicsRadeon Graphics--
Extensions / TechnologiesMMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, AVX2, AVX-512, BMI1, BMI2, SHA, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT, Precision Boost 2, XFR 2MMX, 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

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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance Physics benchmark and MSRP.