AMD Ryzen 7 3800XT vs AMD Ryzen 9 7900

VS
Performance
Ryzen 7 3800XT
18,90551% of 36,991
Ryzen 9 790039% better
26,32571% of 36,991

The Ryzen 9 7900 has 39% better performance than the Ryzen 7 3800XT for the 3DMark 11 Performance Physics benchmark.

Performance per dollar
Ryzen 7 3800XT
47.3839% of 121.53
Ryzen 9 790030% better
61.3650% of 121.53

The Ryzen 9 7900 has 30% better value for the money than the Ryzen 7 3800XT for the 3DMark 11 Performance Physics benchmark.

Shop Ryzen 7 3800XT
Shop Ryzen 9 7900
As an Amazon Associate I earn from qualifying purchases.

Summary

#

About the AMD Ryzen 7 3800XT CPU

The AMD Ryzen 7 3800XT is a 8-core (16-thread) processor built for the desktop CPU market. It launched in Q3 2020 with a suggested retail price of $399. It is part of AMD's Ryzen 7 lineup, which is based on the Zen 2 microarchitecture. The 3800XT is compatible with AMD Socket AM4 motherboards and is fabricated on TSMC's 7 nm manufacturing process.

Memory and Cache

The Ryzen 7 3800XT supports DDR4 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Ryzen 7 3800XT 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 32 MB.

Cores and Clock Speeds

The Ryzen 7 3800XT features 8 total cores which can process 16 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 4.7 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 7 3800XT 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 7 3800XT has the 81st best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 51.11% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D. Its 18,905 score and $399 launch price (MSRP) gives it a performance per dollar of 47.38. This is the 55th best in value for the 3DMark 11 Perf. Physics benchmark.

About the AMD Ryzen 9 7900 CPU

The AMD Ryzen 9 7900 is a 12-core (24-thread) processor built for the desktop CPU market. It launched in Q1 2023 with a suggested retail price of $429. It is part of AMD's Ryzen 9 lineup, which is based on the Zen 4 microarchitecture. The 7900 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 and is bundled with a Wraith Prism cooler.

Memory and Cache

The Ryzen 9 7900 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 7900 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 7900 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 3.7 GHz, and it can boost up to 5.4 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 7900 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 7900 has the 19th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 71.17% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D. Its 26,325 score and $429 launch price (MSRP) gives it a performance per dollar of 61.36. This is the 31st 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 7 3800XTRyzen 9 7900
ManufacturerAMDAMD
SeriesRyzen 7Ryzen 9
Market SegmentDesktopDesktop
Release DateQ3 2020Q1 2023
Launch Price (MSRP)$399$429
Production StatusActiveActive
ShopCheck PriceCheck Price

Benchmark Performance

#
Performance
Ryzen 7 3800XT
18,90551% of 36,991
Ryzen 9 790039% better
26,32571% of 36,991

The Ryzen 9 7900 has 39% better performance than the Ryzen 7 3800XT for the 3DMark 11 Performance Physics benchmark.

The Ryzen 7 3800XT is ranked 81st with a score of 18,905, and the Ryzen 9 7900 is ranked 19th with a score of 26,325.

Performance per dollar
Ryzen 7 3800XT
47.3839% of 121.53
Ryzen 9 790030% better
61.3650% of 121.53

The Ryzen 9 7900 has 30% better value for the money than the Ryzen 7 3800XT for the 3DMark 11 Performance Physics benchmark.

The Ryzen 7 3800XT is ranked 55th with a performance per dollar of 47.38, and the Ryzen 9 7900 is ranked 31st with a performance per dollar of 61.36.

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 7 3800XT or
CPUBenchmark Performance
Core i7-1270027,022+43%
Core i7-1370026,874+42%
Ryzen 9 790026,325+39%
Core i9-12900K26,223+39%
Ryzen 5 7600X25,731+36%
Core i9-9980XE19,237+2%
Ryzen 9 3900X18,932+0%
Ryzen 7 3800XT18,905
Core i9-9900KS18,694-1%
Ryzen 7 3700X18,283.5-3%

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 7 3800XT or
CPUPerformance Per Dollar
Core i7-12700F73.3+55%
Core i7-1370069.98+48%
Ryzen 9 790061.36+30%
Core i7-12700K61+29%
Ryzen 7 5800X3D60.66+28%
Ryzen 7 3700X55.57+17%
Ryzen 7 5800X52.79+11%
Ryzen 7 3800XT47.38
Ryzen 7 270046.69-1%
Ryzen 7 2700X45.89-3%

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 7 3800XTRyzen 9 7900
3DMark 11 Performance Physics
18,905
26,325
(+39.25%)
3DMark Time Spy CPU
10,302
14,817
(+43.83%)
Cinebench R15 Multi-Core
2,230
4,020
(+80.27%)
Cinebench R15 Single-Core
219
315
(+43.84%)
Geekbench 6.2 Multi-Core
8,570
16,860
(+96.73%)
Geekbench 6.2 Single-Core
1,770
2,854
(+61.24%)
CPU Mark Multi-Thread
23,622
48,891
(+106.97%)
CPU Mark Single-Thread
2,802
4,154
(+48.25%)
Benchmarks Source: Notebookcheck

Technical Specs

#

Manufacturing Details

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

SpecRyzen 7 3800XTRyzen 9 7900
ManufacturerAMDAMD
FoundryTSMCTSMC
Process Size7 nm5 nm
Transistors3,800 million13,140 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 7 3800XTRyzen 9 7900
SeriesRyzen 7Ryzen 9
MicroarchitectureZen 2Zen 4
CodenameMatisse 2Raphael
Memory SupportDDR4DDR5
Memory ChannelsDual-channelDual-channel
ECC MemoryNoYes

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 7 3800XTRyzen 9 7900
Cores812
Threads1624
Clock Speed3.8 GHz3.7 GHz
Turbo Clock4.7 GHz5.4 GHz
Base Clock100 MHz100 MHz
Multiplier38.0x37.0x
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 7 3800XTRyzen 9 7900
L1 Cache64 KB64 KB
L2 Cache512 KB1 MB
L3 Cache32 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 7 3800XTRyzen 9 7900
SocketAMD Socket AM4AMD Socket AM5
PCI ExpressPCIe 4.0PCIe 5.0 x24
Thermal Design Power (TDP)105 W65 W
Package Power Tracking (PPT)142 W88 W
Tcase Max95 °C47 °C
TJ Max95 °C95 °C

Graphics, Features, & Extensions

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

SpecRyzen 7 3800XTRyzen 9 7900
Bundled Cooler--Wraith Prism
Integrated Graphics--Radeon Graphics
Extensions / TechnologiesMMX, 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 2MMX, 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

Check out these comparisons for similar CPUs:

Looking for alternatives? Check out these similar CPUs:

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