Phenom II X6 1045T vs i7-875K
Aggregate performance score
Phenom II X6 1045T outperforms Core i7-875K by a minimal 4% based on our aggregate benchmark results.
Primary details
Comparing Core i7-875K and Phenom II X6 1045T processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1955 | 1926 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.10 | 0.29 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 1.94 | 2.01 |
| Architecture codename | Lynnfield (2009−2010) | Thuban (2010) |
| Release date | 30 May 2010 (14 years ago) | 1 September 2010 (14 years ago) |
| Launch price (MSRP) | $486 | $175 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Phenom II X6 1045T has 190% better value for money than i7-875K.
Detailed specifications
Core i7-875K and Phenom II X6 1045T 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 | 4 (Quad-Core) | 6 (Hexa-Core) |
| Threads | 8 | 6 |
| Base clock speed | 2.93 GHz | 2.7 GHz |
| Boost clock speed | 3.6 GHz | 3.2 GHz |
| Bus rate | 2.5 GT/s | no data |
| L1 cache | 64 KB (per core) | 128 KB (per core) |
| L2 cache | 256 KB (per core) | 512 KB (per core) |
| L3 cache | 8 MB (shared) | 6 MB (shared) |
| Chip lithography | 45 nm | 45 nm |
| Die size | 296 mm2 | 346 mm2 |
| Maximum core temperature | 73 °C | no data |
| Number of transistors | 774 million | 904 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i7-875K and Phenom II X6 1045T 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 | 1 |
| Socket | FCLGA1156,LGA1156 | AM3 |
| Power consumption (TDP) | 95 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-875K and Phenom II X6 1045T. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Demand Based Switching | - | no data |
| PAE | 36 Bit | no data |
Security technologies
Core i7-875K and Phenom II X6 1045T 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 i7-875K and Phenom II X6 1045T 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 i7-875K and Phenom II X6 1045T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 16 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 21 GB/s | no data |
Peripherals
Specifications and connection of peripherals supported by Core i7-875K and Phenom II X6 1045T.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | 16 | no data |
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.
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.
Pros & cons summary
| Performance score | 1.95 | 2.02 |
| Recency | 30 May 2010 | 1 September 2010 |
| Physical cores | 4 | 6 |
| Threads | 8 | 6 |
i7-875K has 33.3% more threads.
Phenom II X6 1045T, on the other hand, has a 3.6% higher aggregate performance score, an age advantage of 3 months, and 50% more physical cores.
Given the minimal performance differences, no clear winner can be declared between Core i7-875K and Phenom II X6 1045T.
Should you still have questions on choice between Core i7-875K and Phenom II X6 1045T, ask them in Comments section, and we shall answer.
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