i5-1145GRE vs i9-7900X
Aggregate performance score
Core i9-7900X outperforms Core i5-1145GRE by a whopping 154% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 754 | 1463 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.18 | 5.01 |
| Market segment | Desktop processor | Laptop |
| Series | Core i9 (Desktop) | no data |
| Power efficiency | 3.60 | 7.07 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Skylake (server) (2017−2018) | Tiger Lake-U (2020−2021) |
| Release date | 26 June 2017 (8 years ago) | 2 September 2020 (5 years ago) |
| Launch price (MSRP) | $999 | $362 |
Cost-effectiveness evaluation
Performance per price, higher is better.
i5-1145GRE has 130% better value for money than i9-7900X.
Performance to price scatter graph
Detailed specifications
Core i9-7900X and Core i5-1145GRE 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 | 10 (Deca-Core) | 4 (Quad-Core) |
| Threads | 20 | 8 |
| Base clock speed | 3.3 GHz | 1.5 GHz |
| Boost clock speed | 4.5 GHz | 4.1 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 33 | no data |
| L1 cache | 64 KB (per core) | 80 KB (per core) |
| L2 cache | 1 MB (per core) | 1.25 MB (per core) |
| L3 cache | 14 MB (shared) | 8 MB (shared) |
| Chip lithography | 14 nm | 10 nm |
| Die size | no data | 144 mm2 |
| Maximum core temperature | 95 °C | no data |
| Maximum case temperature (TCase) | 72 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-7900X and Core i5-1145GRE 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 | 1 (Uniprocessor) | 1 |
| Socket | Socket R4 | Intel BGA 1449 |
| Power consumption (TDP) | 140 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-7900X and Core i5-1145GRE. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Turbo Boost Max 3.0 | + | no data |
Security technologies
Core i9-7900X and Core i5-1145GRE technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-7900X and Core i5-1145GRE are enumerated here.
| AMD-V | + | - |
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-7900X and Core i5-1145GRE. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4, LPDDR4X |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 85.33 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel Iris Xe Graphics G7 80EU |
Peripherals
Specifications and connection of peripherals supported by Core i9-7900X and Core i5-1145GRE.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 44 | 4 |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 11.93 | 4.69 |
| Recency | 26 June 2017 | 2 September 2020 |
| Physical cores | 10 | 4 |
| Threads | 20 | 8 |
| Chip lithography | 14 nm | 10 nm |
| Power consumption (TDP) | 140 Watt | 28 Watt |
i9-7900X has a 154.4% higher aggregate performance score, and 150% more physical cores and 150% more threads.
i5-1145GRE, on the other hand, has an age advantage of 3 years, a 40% more advanced lithography process, and 400% lower power consumption.
The Intel Core i9-7900X is our recommended choice as it beats the Intel Core i5-1145GRE in performance tests.
Note that Core i9-7900X is a desktop processor while Core i5-1145GRE is a notebook one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
