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Intel Core i5-8400 vs AMD Ryzen 7 7800X3D vs AMD Ryzen 9 7900

Intel Core i5-8400

► remove from comparison Intel i5-8400

The Intel Core i5-8400 is a mid-range 6-core CPU. The processor belongs to the Coffee Lake generation and was presented in September 2017. It does not support Hyper-Threading, which means it can run six threads simultaneously. The base clock rate is 2.8 GHz and the CPU can speed up to 4.0 GHz under high load. Despite belonging to the new generation of CPUs, the Core i5-8400 is manufactured in an improved 14nm process.

Performance

The processor offers a strong performance increase compared to the Core i5-7400 due to its two additional cores. Single-core performance has not improved significantly compared to its Kaby Lake predecessor. As a mid-range model, the Core i5-8400 should be suitable for demanding games and programs.

Graphics

The integrated Intel UHD Graphics 630 iGPU is supposed to offer higher performance as its clock rate has been increased by 50 MHz. The build is identical to that of the Intel HD Graphics 630. We do expect a performance improvement, but as a low-end solution it will probably only display current games smoothly at reduced details - if at all.

Power Consumption

Intel specifies the TDP with 65 watts. Therefore, well-dimensioned cooling systems should easily manage to deal with the created heat. We expect increased efficiency due to the higher performance.

AMD Ryzen 7 7800X3D

► remove from comparison AMD R7 7800X3D

The AMD Ryzen 7 7800X3D is a high-end desktop processor from the Raphael series with 8 Zen 4 cores and SMT (Simultaneous Multithreading), allowing it to handle up to 16 threads simultaneously. After its announcement in January 2023 at CES in Las Vegas, it was launched in April 2023. Following the launch of the two top models, the AMD Ryzen 9 7900X3D and the AMD Ryzen 9 7950X3D, the third model was introduced, which offers significantly more gaming performance with the 3D V-Cache.

The CPU cores have a base clock of 4.2 GHz and can be boosted up to 5 GHz (single-core turbo). The AMD Ryzen 7 7800X3D features a CCD with 8 cores, which includes the fast 3D V-Cache. This differs significantly from the two Ryzen 9 models, as they have two CCDs, but only one of them can utilize the 3D V-Cache.

The performance of the AMD Ryzen 7 7800X3D is consistently good, although its multi-threaded performance suffers a bit due to the eight native compute cores. However, the real strength of the AMD Ryzen 7 7800X3D lies in gaming performance, where it excels. In tests, we see consistently high gaming performance, even surpassing that of an Intel Core i9-13900K.

In terms of power consumption, the AMD Ryzen 7 7800X3D aligns with the other two models featuring 3D V-Cache, making the 8-core processor extremely power-efficient. In numbers, this means that the AMD Ryzen 7 7800X3D is specified with a TDP of up to 120 watts. The PPT (Package Power Tracking) is also rated up to 162 watts. For comparison, an AMD Ryzen 9 7950X is specified with 170 watts (TDP) or 230 watts (PPT).

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.

ModelIntel Core i5-8400AMD Ryzen 7 7800X3DAMD Ryzen 9 7900
SeriesIntel Coffee LakeAMD Raphael (Zen 4, Ryzen 7000)AMD Raphael (Zen 4, Ryzen 7000)
CodenameCoffee Lake-SRaphael (Zen4)Raphael (Zen4)
Series: Raphael (Zen 4, Ryzen 7000) Raphael (Zen4)
Intel Core i7-8086K3.7 - 5 GHz6 / 12 cores12 MB L3
Intel Core i7-8700K3.7 - 4.7 GHz6 / 12 cores12 MB L3
Intel Core i7-87003.2 - 4.6 GHz6 / 12 cores12 MB L3
Intel Core i5-8600K3.6 - 4.3 GHz6 / 6 cores9 MB L3
Intel Core i5-85003 - 4.1 GHz6 / 6 cores9 MB L3
Intel Core i5-8400 « 2.8 - 4 GHz6 / 6 cores9 MB L3
Intel Core i5-8500T2.1 - 3.5 GHz6 / 6 cores9 MB L3
AMD Ryzen 9 7950X3D4.2 - 5.7 GHz16 / 32 cores128 MB L3
AMD Ryzen 9 7900X4.7 - 5.6 GHz12 / 24 cores64 MB L3
AMD Ryzen 9 79003.7 - 5.4 GHz12 / 24 cores64 MB L3
AMD Ryzen 7 7700X4.5 - 5.4 GHz8 / 16 cores32 MB L3
AMD Ryzen 7 77003.8 - 5.3 GHz8 / 16 cores32 MB L3
AMD Ryzen 7 7800X3D « 4.2 - 5 GHz8 / 16 cores96 MB L3
AMD Ryzen 5 7600X4.7 - 5.3 GHz6 / 12 cores32 MB L3
AMD Ryzen 5 76003.8 - 5.1 GHz6 / 12 cores32 MB L3
AMD Ryzen 9 7950X3D4.2 - 5.7 GHz16 / 32 cores128 MB L3
AMD Ryzen 9 7900X4.7 - 5.6 GHz12 / 24 cores64 MB L3
AMD Ryzen 9 7900 « 3.7 - 5.4 GHz12 / 24 cores64 MB L3
AMD Ryzen 7 7700X4.5 - 5.4 GHz8 / 16 cores32 MB L3
AMD Ryzen 7 77003.8 - 5.3 GHz8 / 16 cores32 MB L3
AMD Ryzen 7 7800X3D4.2 - 5 GHz8 / 16 cores96 MB L3
AMD Ryzen 5 7600X4.7 - 5.3 GHz6 / 12 cores32 MB L3
AMD Ryzen 5 76003.8 - 5.1 GHz6 / 12 cores32 MB L3
Clock2800 - 4000 MHz4200 - 5000 MHz3700 - 5400 MHz
L1 Cache384 KB0.1 MB768 KB
L2 Cache1.5 MB0 MB12 MB
L3 Cache9 MB96 MB64 MB
Cores / Threads6 / 68 / 1612 / 24
TDP65 Watt162 Watt65 Watt
14 nm5 nm5 nm, 0.650 - 1.475V
SocketFCLGA1151AM5 (LGA 1718)AM5 (LGA 1718)
FeaturesDual-Channel DDR3(L)-1600/DDR4-2666 Memory Controller, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vProMMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, x86-64, AMD-V, AES, AVX, AVX2, AVX512, BMI1, BMI2, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT SHA, XFR2, 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
iGPUIntel UHD Graphics 630 (350 - 1050 MHz)AMD Radeon Graphics (Ryzen 7000) (400 - 2200 MHz)AMD Radeon Graphics (Ryzen 7000) ( - 2200 MHz)
Architecturex86x86x86
Announced
Manufacturerark.intel.comwww.amd.com
Transistors6570 Million9.9 Million
Die Size1x 71 mm² (CCD) + 121 mm² (I/O) mm2262 mm2
max. Temp.89 °C95 °C
$449 U.S.

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - R7 7800X3D
48.3 pt (67%)
Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - R9 7900
54.2 pt (75%)
Cinebench R23 - Cinebench R23 Multi Core
min: 16688     avg: 17387     median: 17387 (16%)     max: 18086 Points
142%
1 R9 7900 +
24776 Points (23%)
Cinebench R23 - Cinebench R23 Single Core
min: 1713     avg: 1767     median: 1766.5 (75%)     max: 1820 Points
111%
1 R9 7900 +
1966 Points (84%)
Cinebench R20 - Cinebench R20 CPU (Single Core)
min: 663     avg: 686     median: 686 (76%)     max: 709 Points
111%
1 R9 7900 +
762 Points (85%)
Cinebench R20 - Cinebench R20 CPU (Multi Core)
min: 6488     avg: 6805     median: 6804.5 (17%)     max: 7121 Points
143%
1 R9 7900 +
9703 Points (24%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 939     avg: 943     median: 941 (6%)     max: 949 Points
min: 2783     avg: 2879     median: 2878.5 (18%)     max: 2974 Points
4020 Points (25%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 167     avg: 169.5     median: 169.5 (51%)     max: 172 Points
min: 272     avg: 281.5     median: 281.5 (85%)     max: 291 Points
315 Points (95%)
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
11 Points (14%)
33.5 Points (44%)
45.3 Points (59%)
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
1.9 Points (47%)
3.4 Points (85%)
3.7 Points (92%)
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 6356     avg: 6364     median: 6363.5 (38%)     max: 6371 Points
8026 Points (48%)
8339 Points (50%)
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 30658     avg: 30790     median: 30789.5 (22%)     max: 30921 Points
51950 Points (38%)
60934 Points (44%)
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
94035 Points (65%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
14485 Points (18%)
wPrime 2.10 - wPrime 2.0 1024m *
191.8 s (2%)
62.7 s (1%)
46.8 s (1%)
wPrime 2.10 - wPrime 2.0 32m *
6.2 s (1%)
2.4 s (0%)
3 s (1%)
WinRAR - WinRAR 4.0
5173 Points (8%)
16585 Points (26%)
10154 Points (16%)
7-Zip 18.03 - 7-Zip 18.03 Multli Thread 4 runs
min: 75558     avg: 80313     median: 80312.5 (46%)     max: 85067 MIPS
141%
1 R9 7900 +
112881 MIPS (65%)
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
min: 7412     avg: 7824     median: 7823.5 (94%)     max: 8235 MIPS
101%
1 R9 7900 +
7936 MIPS (95%)
X264 HD Benchmark 4.0 - x264 Pass 2
61.4 fps (21%)
169.3 fps (59%)
207 fps (72%)
X264 HD Benchmark 4.0 - x264 Pass 1
223.8 fps (52%)
344 fps (79%)
355.5 fps (82%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
min: 22.1     avg: 23.3     median: 23.3 (41%)     max: 24.4 fps
134%
1 R9 7900 +
31.2 fps (55%)
TrueCrypt - TrueCrypt Serpent
0.5 GB/s (0%)
1.3 GB/s (0%)
2 GB/s (0%)
TrueCrypt - TrueCrypt Twofish
0.8 GB/s (14%)
2.1 GB/s (36%)
3.1 GB/s (53%)
TrueCrypt - TrueCrypt AES
5 GB/s (13%)
15.3 GB/s (40%)
21.5 GB/s (56%)
Blender - Blender 3.3 Classroom CPU *
min: 266     avg: 282.5     median: 282.5 (4%)     max: 299 Seconds
101%
1 R9 7900 +
199 Seconds (3%)
Blender - Blender 2.79 BMW27 CPU *
488 Seconds (3%)
min: 169     avg: 178     median: 178 (1%)     max: 187 Seconds
125 Seconds (1%)
R Benchmark 2.5 - R Benchmark 2.5 *
min: 0.4152     avg: 0.4     median: 0.4 (9%)     max: 0.4479 sec
101%
1 R9 7900 +
0.4 sec (8%)
3DMark 06 - CPU - 3DMark 06 - CPU
9474 Points (20%)
16892 Points (36%)
19451 Points (41%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
9.5 s (2%)
7.1 s (2%)
6.7 s (1%)
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
21.6 s (1%)
15.3 s (1%)
13.9 s (1%)
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
526 s (2%)
337.6 s (1%)
329 s (1%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 i5-8400 +
35310 Points (31%)
97391 Points (85%)
3DMark 11 - 3DM11 Performance Physics
min: 9057     avg: 9453     median: 9453 (26%)     max: 9849 Points
min: 30767     avg: 32947     median: 32947 (89%)     max: 35127 Points
26325 Points (71%)
3DMark - 3DMark Ice Storm Physics
89617 Points (73%)
3DMark - 3DMark Ice Storm Extreme Physics
100%
1 i5-8400 +
65891 Points (53%)
89287 Points (72%)
3DMark - 3DMark Ice Storm Unlimited Physics
100%
1 i5-8400 +
69971 Points (59%)
91846 Points (77%)
3DMark - 3DMark Cloud Gate Physics
100%
1 i5-8400 +
7891 Points (20%)
25510 Points (65%)
3DMark - 3DMark Fire Strike Standard Physics
100%
1 i5-8400 +
min: 10911     avg: 11774     median: 12066 (22%)     max: 12346 Points
min: 30333     avg: 31839     median: 31839 (57%)     max: 33345 Points
3DMark - 3DMark Time Spy CPU
min: 4372     avg: 4941     median: 4940.5 (21%)     max: 5509 Points
min: 11975     avg: 13037     median: 13036.5 (55%)     max: 14098 Points
14817 Points (62%)
Geekbench 6.2 - Geekbench 6.2 Single-Core
2634 Points (72%)
Geekbench 6.2 - Geekbench 6.2 Multi-Core
14288 Points (56%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Single-Core
min: 1856     avg: 1934     median: 1920 (81%)     max: 2027 Points
115%
1 R9 7900 +
2203 Points (93%)
Geekbench 5.5 - Geekbench 5.1 - 5.4 64 Bit Multi-Core
min: 12073     avg: 13013     median: 12715 (23%)     max: 14252 Points
141%
1 R9 7900 +
17880 Points (32%)
Geekbench 5.0 - Geekbench 5.0 64 Bit Single-Core
1938 Points (8%)
108%
1 R9 7900 +
2096 Points (9%)
Geekbench 5.0 - Geekbench 5.0 64 Bit Multi-Core
13888 Points (44%)
127%
1 R9 7900 +
17581 Points (55%)
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Single-Core
5104 Points (51%)
9097 Points (91%)
8861 Points (89%)
Geekbench 4.4 - Geekbench 4.1 - 4.4 64 Bit Multi-Core
20500 Points (22%)
54840 Points (60%)
65241 Points (72%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Single-Core
100%
1 i5-8400 +
4996 Points (68%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Multi-Core
100%
1 i5-8400 +
19500 Points (47%)
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
100%
1 i5-8400 +
19334 Points (30%)
Geekbench 3 - Geekbench 3 64 Bit Single-Core
100%
1 i5-8400 +
4283 Points (64%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
min: 487     avg: 504     median: 503.5 (1%)     max: 520 ms
100%
1 R9 7900 +
452 ms (1%)
WebXPRT 4 - WebXPRT 4 Score
282 Points (81%)
107%
1 R9 7900 +
302 Points (87%)
WebXPRT 3 - WebXPRT 3 Score
353 Points (74%)
104%
1 R9 7900 +
366 Points (76%)
CrossMark - CrossMark Overall
2216 Points (85%)
105%
1 R9 7900 +
2322 Points (89%)
Power Consumption - Prime95 Power Consumption - external Monitor *
100%
1 i5-8400 +
115 Watt (20%)
218 Watt (38%)
203 Watt (35%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
100%
1 i5-8400 +
97 Watt (18%)
207 Watt (38%)
196.9 Watt (36%)
Power Consumption - Idle Power Consumption - external Monitor *
121.6 Watt (80%)
150%
1 R9 7900 +
106.9 Watt (71%)
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
100%
1 i5-8400 +
9.7 Points per Watt (7%)
14.4 Points per Watt (11%)
210%
1 R9 7900 +
20.4 Points per Watt (15%)

Average Benchmarks Intel Core i5-8400 → 100% n=23

Average Benchmarks AMD Ryzen 7 7800X3D → 203% n=23

Average Benchmarks AMD Ryzen 9 7900 → 232% n=23

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

v1.26
log 18. 11:43:18

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

#3 not redirecting to Ajax server +0s ... 0s

#4 did not recreate cache, as it is less than 5 days old! Created at Fri, 17 May 2024 11:21:47 +0200 +0.001s ... 0.001s

#5 composed specs +0.032s ... 0.033s

#6 did output specs +0s ... 0.033s

#7 getting avg benchmarks for device 9298 +0.003s ... 0.036s

#8 got single benchmarks 9298 +0.012s ... 0.048s

#9 getting avg benchmarks for device 15064 +0.019s ... 0.067s

#10 got single benchmarks 15064 +0.012s ... 0.079s

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#12 got single benchmarks 15014 +0.007s ... 0.101s

#13 got avg benchmarks for devices +0s ... 0.101s

#14 min, max, avg, median took s +0.367s ... 0.468s

#15 return log +0s ... 0.468s

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Redaktion, 2017-09- 8 (Update: 2023-07- 1)