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AMD Ryzen 9 3900 vs AMD Ryzen 9 7900

AMD Ryzen 9 3900

► remove from comparison AMD R9 3900

The Ryzen 9 3900 is a fast desktop CPU with 12 cores and 24 threads based on the Matisse series. It is the fastest 65 Watt CPU at launch in late 2019 and clocks the cores between 3.1 (base) to 4.3 (boost) clock (including Precision Boost). It uses 4 CCX-clusters where 3 of the 4 cores are activated. The CPU is manufactured in the modern 7nm process at TSMC. The I/O die on the package is separate and manufactured in 12 nm at Globalfoundries.

Due to the reduced Turbo speed, the Ryzen 9 3900 is aimed at content creators and other professionals that can make use of the 12 cores. For games, a fast 8-core CPU with higher boost clocks is the better choice.

AMD Ryzen 9 7900

► remove from comparison AMD R9 7900

The AMD Ryzen 9 79 00 is a high-end desktop processorfrom the Raphael series with 12 cores and hyperthreading (SMT), which means it can process up to 24 threads simultaneously. Launched in early 2023, the Ryzen 9 7900 is the fastest 12-core processor with 65 watts TDP.

The Ryzen 9 7900 clocks at 3.7 GHz base clock and reaches up to 5.4 GHz on one core in Turbo mode. This is also the difference to the higher clocked Ryzen 9 7900X.

At first glance, the internal structure of the processor has not changed fundamentally. The AMD Ryzen 9 7900 is still based on the chiplet design consisting of two CCD clusters, each containing a CCX with 8 cores. However, the manufacturing process has been scaled down to 5 nm, which ensures higher clock rates. There is also the IO die, which contains the memory controller and the iGPU, among other things. This is now manufactured in a 6 nm structure width.

The AMD Ryzen 9 7900 can impress in games thanks to the significantly improved IPC.

ModelAMD Ryzen 9 3900AMD Ryzen 9 7900
CodenameMatisse (Zen 2)Raphael (Zen4)
SeriesAMD Matisse (Ryzen 3000 Desktop)AMD Raphael (Zen 4, Ryzen 7000)
Series: Raphael (Zen 4, Ryzen 7000) Raphael (Zen4)
AMD Ryzen 9 3950X compare3.5 - 4.7 GHz16 / 32 cores64 MB L3
AMD Ryzen 9 3900X compare3.8 - 4.6 GHz12 / 24 cores64 MB L3
AMD Ryzen 9 3900 « 3.1 - 4.3 GHz12 / 24 cores64 MB L3
AMD Ryzen 7 3800XT compare3.9 - 4.7 GHz8 / 16 cores32 MB L3
AMD Ryzen 7 3700X compare3.6 - 4.4 GHz8 / 16 cores32 MB L3
AMD Ryzen 3 3300X compare3.8 - 4.3 GHz4 / 8 cores16 MB L3
AMD Ryzen 3 3100 compare3.6 - 3.9 GHz4 / 8 cores16 MB L3
AMD Ryzen 9 7950X3D compare4.2 - 5.7 GHz16 / 32 cores128 MB L3
AMD Ryzen 9 7900X compare4.7 - 5.6 GHz12 / 24 cores64 MB L3
AMD Ryzen 9 7900 « 3.7 - 5.4 GHz12 / 24 cores64 MB L3
AMD Ryzen 7 7700X compare4.5 - 5.4 GHz8 / 16 cores32 MB L3
AMD Ryzen 7 7700 compare3.8 - 5.3 GHz8 / 16 cores32 MB L3
AMD Ryzen 7 7800X3D compare4.2 - 5 GHz8 / 16 cores96 MB L3
AMD Ryzen 5 7600X compare4.7 - 5.3 GHz6 / 12 cores32 MB L3
AMD Ryzen 5 7600 compare3.8 - 5.1 GHz6 / 12 cores32 MB L3
Clock3100 - 4300 MHz3700 - 5400 MHz
L1 Cache768 KB768 KB
L2 Cache6 MB12 MB
L3 Cache64 MB64 MB
Cores / Threads12 / 2412 / 24
TDP65 Watt65 Watt
Technology7 nm5 nm
SocketAM4 (1331)AM5 (LGA 1718)
FeaturesMMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, x86-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, x86-64, AMD-V, AES, AVX, AVX2, AVX512F, FMA3, SHA, Precision Boost 2
Architecturex86x86
Announced
Transistors9.9 Million
Voltage0.650 - 1.475V V
Die Size262 mm2
max. Temp.95 °C
iGPUAMD Radeon Graphics (Ryzen 7000) ( - 2200 MHz)
Manufacturerwww.amd.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - R9 3900
33.6 pt (56%)
Restrict / Search: Model: Max. age: years
Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - R9 7900
46.1 pt (77%)
Restrict / Search: Model: Max. age: years
Cinebench R23 - Cinebench R23 Multi Core
100%
1 R9 7900 +
24776 Points (23%)
Cinebench R23 - Cinebench R23 Single Core
100%
1 R9 7900 +
1966 Points (83%)
Cinebench R20 - Cinebench R20 CPU (Single Core)
490 Points (53%)
762 Points (83%)
Cinebench R20 - Cinebench R20 CPU (Multi Core)
6321 Points (15%)
9703 Points (24%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
2804 Points (18%)
4020 Points (25%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
197 Points (55%)
315 Points (87%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
31 Points (40%)
45.3 Points (59%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
2.2 Points (53%)
3.7 Points (87%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
5700 Points (34%)
8339 Points (50%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
44191 Points (32%)
60934 Points (44%)
wPrime 2.10 - wPrime 2.0 1024m *
100%
1 R9 7900 +
46.8 s (1%)
wPrime 2.10 - wPrime 2.0 32m *
100%
1 R9 7900 +
3 s (1%)
WinRAR - WinRAR 4.0
7145 Points (11%)
10154 Points (16%)
7-Zip 18.03 - 7-Zip 18.03 Multi Thread 4 runs
75612 MIPS (43%)
112881 MIPS (65%)
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
5134 MIPS (61%)
7936 MIPS (94%)
X264 HD Benchmark 4.0 - x264 Pass 2
131.9 fps (44%)
207 fps (69%)
X264 HD Benchmark 4.0 - x264 Pass 1
255.5 fps (59%)
355.5 fps (82%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
18.9 fps (33%)
31.2 fps (55%)
TrueCrypt - TrueCrypt Serpent
1.6 GB/s (47%)
2 GB/s (59%)
TrueCrypt - TrueCrypt Twofish
2.4 GB/s (41%)
3.1 GB/s (53%)
TrueCrypt - TrueCrypt AES
10.4 GB/s (27%)
21.5 GB/s (56%)
Blender - Blender 3.3 Classroom CPU *
100%
1 R9 7900 +
199 Seconds (3%)
Blender - Blender 2.79 BMW27 CPU *
179 Seconds (1%)
125 Seconds (1%)
R Benchmark 2.5 - R Benchmark 2.5 *
0.5 sec (12%)
0.4 sec (8%)
3DMark 06 - CPU - 3DMark 06 - CPU
13817 Points (29%)
19451 Points (41%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
9.6 s (2%)
6.7 s (1%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
20.9 s (1%)
13.9 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
547 s (2%)
329 s (1%)
3DMark 11 - 3DM11 Performance Physics
16803 Points (41%)
26325 Points (65%)
3DMark - 3DMark Cloud Gate Physics
100%
1 R9 3900 +
16410 Points (42%)
3DMark - 3DMark Fire Strike Standard Physics
100%
1 R9 3900 +
26216 Points (47%)
3DMark - 3DMark Time Spy CPU
10725 Points (45%)
14817 Points (62%)
Geekbench 6.4 - Geekbench 6.4 Single-Core
100%
1 R9 7900 +
2990 Points (75%)
Geekbench 6.4 - Geekbench 6.4 Multi-Core
100%
1 R9 7900 +
15725 Points (61%)
Geekbench 6.0 - Geekbench 6.0 Single-Core
100%
1 R9 7900 +
min: 2848     avg: 2859     median: 2858.5 (91%)     max: 2869 Points
Geekbench 6.0 - Geekbench 6.0 Multi-Core
100%
1 R9 7900 +
min: 16864     avg: 16913     median: 16912.5 (69%)     max: 16961 Points
Geekbench 5.5 - Geekbench 5.1 - 5.5 64 Bit Single-Core
1246 Points (49%)
2203 Points (86%)
Geekbench 5.5 - Geekbench 5.1 - 5.5 64 Bit Multi-Core
10190 Points (18%)
17880 Points (32%)
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
1258 Points (5%)
2096 Points (9%)
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
10695 Points (34%)
17581 Points (55%)
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
5449 Points (54%)
8861 Points (88%)
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
40720 Points (41%)
65241 Points (65%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Single-Core
100%
1 R9 3900 +
5482 Points (61%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Multi-Core
100%
1 R9 3900 +
41058 Points (59%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
746 ms (1%)
452 ms (1%)
WebXPRT 4 - WebXPRT 4 Score
100%
1 R9 7900 +
302 Points (83%)
WebXPRT 3 - WebXPRT 3 Score
227 Points (41%)
366 Points (66%)
CrossMark - CrossMark Overall
100%
1 R9 7900 +
2322 Points (87%)
Power Consumption - Prime95 Power Consumption - external Monitor *
100%
1 R9 7900 +
203 Watt (35%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
100%
1 R9 7900 +
196.9 Watt (36%)
Power Consumption - Idle Power Consumption - external Monitor *
100%
1 R9 7900 +
106.9 Watt (71%)
Power Consumption - Power Efficiency - Cinebench R15 Multi external Monitor
100%
1 R9 7900 +
20.4 Points per Watt (15%)

Average Benchmarks AMD Ryzen 9 3900 → 100% n=33

Average Benchmarks AMD Ryzen 9 7900 → 154% n=33

- Range of benchmark values for this graphics card
red legend - Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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v1.33
log 26. 05:10:03

#0 ran 0s before starting gpusingle class +0s ... 0s

#1 checking url part for id 12174 +0s ... 0s

#2 checking url part for id 15014 +0s ... 0s

#3 redirected to Ajax server, took 1753499403s time from redirect:0 +0s ... 0s

#4 did not recreate cache, as it is less than 5 days old! Created at Fri, 25 Jul 2025 05:17:52 +0200 +0s ... 0s

#5 composed specs +0.005s ... 0.005s

#6 did output specs +0s ... 0.005s

#7 getting avg benchmarks for device 12174 +0.004s ... 0.009s

#8 got single benchmarks 12174 +0.004s ... 0.013s

#9 getting avg benchmarks for device 15014 +0.004s ... 0.017s

#10 got single benchmarks 15014 +0.006s ... 0.023s

#11 got avg benchmarks for devices +0s ... 0.023s

#12 min, max, avg, median took s +0.038s ... 0.062s

#13 return log +0.001s ... 0.063s

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2023-07- 1)