Core i9-7900X

Details and Benchmarks for Intel Core i9-7900X

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Core i9-7900X based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

6,117 Rank: 207
Rank Name Score Visual
203 Ryzen 9 PRO 6950HS 6,134
+0.3%
204 Core i9-11900F 6,132
+0.2%
205 Xeon E-2236 6,131
+0.2%
206 Ryzen 7 5700 6,130
+0.2%
207 Core i9-7900X 6,117
208 Ryzen 9 6900HX 6,117
+0%
209 Xeon Gold 6146 6,115
+-0%
210 Xeon Platinum 8180M 6,112
-0.1%
211 Xeon Gold 6150 6,112
-0.1%
212 Core i9-10900KF 6,108
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Core i9-7900X based on multi-threaded benchmark results.

6,101 Rank: 216
Rank Name Score Visual
212 Core i9-13900H 6,141
+0.7%
213 Core i9-12900E 6,139
+0.6%
214 Xeon Gold 6142 6,125
+0.4%
215 Ryzen Threadripper 2920X 6,104
+0%
216 Core i9-7900X 6,101
217 Ryzen 9 3900 6,100
+-0%
218 Xeon Silver 4314 6,086
-0.2%
219 Xeon W-2175 6,079
-0.4%
220 Xeon E5-2695 v4 6,067
-0.6%
221 Xeon w3-2435 6,067
-0.6%

View full ranking →

Singlecore Score

Single-core performance score for Core i9-7900X based on single-threaded benchmark results.

6,128 Rank: 225
Rank Name Score Visual
221 Ryzen 9 6900HS 6,135
+0.1%
222 Xeon w3-2425 6,134
+0.1%
223 Xeon E-2124G 6,131
+0%
224 AMD Ryzen 7 1800X 6,130
+0%
225 Core i9-7900X 6,128
226 Core i9-10900X 6,127
+-0%
227 Core i9-10980HK 6,119
-0.1%
228 Ryzen 9 PRO 3900 6,116
-0.2%
229 Ryzen 7 7735HS 6,116
-0.2%
230 Core i9-9900X 6,115
-0.2%

View full ranking →

Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Core i9-7900X based on integer math, floating point math, and prime number computation benchmarks.

5,167 Rank: 298
Rank Name Score Visual
294 Ryzen 7 PRO 5750GE 5,174
+0.1%
295 Ryzen 7 6800HS 5,174
+0.1%
296 Xeon Gold 6334 5,172
+0.1%
297 Core i9-9820X 5,169
+0%
298 Core i9-7900X 5,167
299 Core i9-10900E 5,166
+-0%
300 Ryzen 7 3700X 5,163
-0.1%
301 Xeon W-2155 5,160
-0.1%
302 Xeon E5-2680 v4 5,155
-0.2%
303 Core i9-10900 5,155
-0.2%

View full ranking →

Data Processing

Aggregated score for Core i9-7900X based on data encryption, data compression, and string sorting benchmarks.

5,272 Rank: 287
Rank Name Score Visual
283 Core i9-11900 5,282
+0.2%
284 Ryzen 7 PRO 2700X 5,281
+0.2%
285 Xeon E5-2690 v4 5,278
+0.1%
286 Ryzen Threadripper 1900X 5,273
+0%
287 Core i9-7900X 5,272
288 Xeon Gold 6126T 5,269
-0.1%
289 Xeon E5-2682 v4 5,269
-0.1%
290 Ryzen 9 4900H 5,269
-0.1%
291 Ryzen 7 5800H 5,269
-0.1%
292 Ryzen 9 4900HS 5,268
-0.1%

View full ranking →

Physics & Compute

Aggregated score for Core i9-7900X based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

5,356 Rank: 227
Rank Name Score Visual
223 Core i9-9820X 5,363
+0.1%
224 Ryzen 7 5800X 5,362
+0.1%
225 Xeon E5-2698 v4 5,361
+0.1%
226 Xeon W-2155 5,356
+0%
227 Core i9-7900X 5,356
228 Core i9-12900E 5,353
-0.1%
229 Xeon Silver 4310 5,350
-0.1%
230 Xeon Gold 6138T 5,347
-0.2%
231 EPYC 7551 5,329
-0.5%
232 Xeon Gold 6244 5,323
-0.6%

View full ranking →

Core i9-7900X Details

The Intel Core i9-7900X stands as a high-end desktop processor from the Skylake-X generation, launched in June 2017, and remains a notable performer in the enthusiast segment despite its age. With a current-time of March 2026, the processor is now over eight years old, placing it firmly in the realm of legacy hardware. While it is no longer competitive with the latest high-performance CPUs, it still holds its ground in certain benchmark categories, particularly in multicore performance.

At the heart of the Core i9-7900X lies a 10-core, 20-thread design based on Intel’s Skylake-X microarchitecture, manufactured on a 14 nm process. The base clock runs at 3.3 GHz, with a single-core turbo frequency of 4.3 GHz and a maximum turbo frequency of 4.5 GHz when using Turbo Boost Max Technology 3.0. This allows the processor to scale dynamically depending on workload and thermal headroom. It features a substantial L3 cache of 13.75 MiB, distributed across the ten cores, with 10 MiB of L2 cache and 0.625 MiB of L1 cache. The processor operates on a quad-channel DDR4-2666 memory interface, supporting up to 128 GB of RAM and delivering a peak memory bandwidth of 85.3 GB/s.

The Core i9-7900X is built for high-end desktops and is compatible with the Socket R4 (FCLGA-2066) platform, requiring a Z270 or X299 chipset. It has a TDP of 140 W, which demands robust cooling solutions due to its high power draw and heat output. Notably, the processor lacks integrated graphics, requiring a discrete GPU for display output. This makes it suitable only for systems where graphics performance is handled externally.

In terms of supported features, the Core i9-7900X offers a comprehensive set of technologies, including AVX-512, AVX2, and AVX, enabling accelerated performance in scientific computing, media encoding, and machine learning tasks. It also supports Intel’s Hyper-Threading, allowing each physical core to handle two threads simultaneously. The processor supports Intel Turbo Boost 2.0 and 3.0, Intel VT-x and VT-d virtualization, and Intel Enhanced SpeedStep Technology, which helps manage power consumption.

Benchmarking reveals that the Core i9-7900X scores 6,117 in the overall PassMark benchmark, placing it at #207 among 2,060 CPUs. Its single-core performance scores 6,128, ranking #225, while its multicore score reaches 6,101, ranking #216. In comparison, it trails behind modern processors like the Ryzen Threadripper 9980X and Core Ultra 9 285K, which dominate the top ranks. However, it outperforms many mainstream and even some enthusiast CPUs, such as the Ryzen 9 3900 and Core i9-10900X.

In conclusion, the Core i9-7900X is a powerful but aging processor best suited for legacy systems or users with specific workloads that benefit from its high core count and AVX-512 support. While it is no longer competitive in the current market, its performance and expandability make it a viable option for niche applications. As of March 2026, it remains a testament to Intel’s earlier efforts in high-end desktop computing, though it is increasingly overshadowed by newer architectures.
Frequently Compared

AMD Ryzen 9 PRO 6950H 30 views

Intel Core i7-3820 28 views

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Intel Core i5-8500 23 views

Intel Core i5-5300U 22 views

Intel Core i9-12900T 22 views

Intel Core i9-7900X

Main Specifications

Designer: Intel
Name: Core i9-7900X
Family: Core
Series: i9-7000
Model Number: i9-7900X
Cores: 10
Threads: 20
Base Frequency: 3300 MHz
Turbo Frequency (1 core): 4300 MHz
Turbo Frequency (2 cores): 4300 MHz
Clock Multiplier: 33x (unlocked)
Microarchitecture: Skylake
Core Name: Skylake
Core Family: 6
Core Model: 85
Socket: Socket
Package: FCLGA-2066
Chipset: Lewisburg
Target Segment: Desktop
Max CPUs: 1
TDP: 140 W
Release Price: $999.00

Cache Specifications

L1 Cache: 640 KiB
L1 Instruction Cache: 320.512 KiB (8-way set associative)
L1 Data Cache: 320.512 KiB (8-way set associative)
L2 Cache: 10 MiB (16-way set associative)
L3 Cache: 13.75 MiB (11-way set associative)

Memory Specifications

Supported Memory Type: DDR4-2666
Memory Channels: 4
Maximum Memory: 128 GB
Maximum Bandwidth: 79.47 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 3.0
PCIe Lanes: 44
PCIe Configuration: x16, x8, x4

Physical Specifications

Process: 14 nm
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 ABM BMI1 BMI2 FMA3 AES RdRand ADX CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX HT TBT 2.0 EIST TXT VT-x VT-d EPT AVX-512 AVX512F AVX512CD AVX512BW AVX512DQ AVX512VL TSX Flex Memory AVX-512 TBMT 3.0 TBT 1.0 FMA
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