Core i5-10400F vs Core i7-990X EE
Aggregate performance score
Core i5-10400F outperforms Core i7-990X EE by an impressive 97% based on our aggregated benchmark results.
Primary details
Comparing Core i7-990X EE and Core i5-10400F processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1276 | 829 |
| Place by popularity | not in top-100 | 11 |
| Cost-effectiveness evaluation | no data | 48.22 |
| Market segment | Desktop processor | Desktop processor |
| Series | Core i7 (Desktop) | no data |
| Architecture codename | Gulftown (2010−2011) | Comet Lake (2020) |
| Release date | no data | 30 April 2020 (4 years ago) |
| Launch price (MSRP) | no data | $155 |
| Current price | no data | $100 (0.6x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i7-990X EE and Core i5-10400F basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 6 (Hexa-Core) | 6 (Hexa-Core) |
| Threads | 12 | 12 |
| Base clock speed | no data | 2.9 GHz |
| Boost clock speed | 3.73 GHz | 4.3 GHz |
| Bus support | 6400 MHz | no data |
| L1 cache | no data | 64K (per core) |
| L2 cache | no data | 256K (per core) |
| L3 cache | no data | 12 MB (shared) |
| Chip lithography | 32 nm | 14 nm |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | no data | 72 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | No |
Compatibility
Information on Core i7-990X EE and Core i5-10400F compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | no data | 1 |
| Socket | LGA-1366 | FCLGA1200 |
| Power consumption (TDP) | 130 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-990X EE and Core i5-10400F. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | no data | + |
| AVX | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | no data | + |
| SIPP | no data | - |
| Turbo Boost Max 3.0 | no data | - |
| Status | no data | Launched |
Security technologies
Core i7-990X EE and Core i5-10400F technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| Identity Protection | no data | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-990X EE and Core i5-10400F are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-990X EE and Core i5-10400F. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 41.6 GB/s |
| ECC memory support | no data | - |
Peripherals
Specifications and connection of peripherals supported by Core i7-990X EE and Core i5-10400F.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Core i5-10400F outperforms Core i7-990X EE by 97% based on our aggregated benchmark results.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
Core i5-10400F outperforms Core i7-990X EE by 97% in Passmark.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Benchmark coverage: 20%
Core i5-10400F outperforms Core i7-990X EE by 60% in Cinebench 10 32-bit single-core.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
Benchmark coverage: 19%
Core i5-10400F outperforms Core i7-990X EE by 64% in Cinebench 10 32-bit multi-core.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Benchmark coverage: 18%
Core i5-10400F outperforms Core i7-990X EE by 21% in wPrime 32.
Cinebench 11.5 64-bit multi-core
Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.
Benchmark coverage: 17%
Core i5-10400F outperforms Core i7-990X EE by 63% in Cinebench 11.5 64-bit multi-core.
Pros & cons summary
| Performance score | 4.28 | 8.42 |
| Chip lithography | 32 nm | 14 nm |
| Power consumption (TDP) | 130 Watt | 65 Watt |
The Core i5-10400F is our recommended choice as it beats the Core i7-990X EE in performance tests.
Should you still have questions on choice between Core i7-990X EE and Core i5-10400F, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
