Pentium D 950 vs i9-7900X
Aggregate performance score
Core i9-7900X outperforms Pentium D 950 by a whopping 2883% 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 | 759 | 3283 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.18 | no data |
| Market segment | Desktop processor | Desktop processor |
| Series | Core i9 (Desktop) | no data |
| Power efficiency | 3.60 | 0.13 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Skylake (server) (2017−2018) | Presler (2005−2007) |
| Release date | 26 June 2017 (8 years ago) | 16 January 2006 (20 years ago) |
| Launch price (MSRP) | $999 | $637 |
Cost-effectiveness evaluation
Performance per price, higher is better.
i9-7900X and Pentium D 950 have a nearly equal value for money.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
Basic parameters of Core i9-7900X and Pentium D 950: 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) | 2 (Dual-core) |
| Threads | 20 | 2 |
| Base clock speed | 3.3 GHz | 3.4 GHz |
| Boost clock speed | 4.5 GHz | 3.4 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) | 16 KB (per core) |
| L2 cache | 1 MB (per core) | 2 MB (per die) |
| L3 cache | 14 MB (shared) | 0 KB |
| Chip lithography | 14 nm | 65 nm |
| Die size | no data | 2x 81 mm2 |
| Maximum core temperature | 95 °C | C1+D0=63 °C, B1=69 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 376 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | + | - |
| VID voltage range | no data | 1.2V-1.3375V |
Compatibility
Information on Core i9-7900X and Pentium D 950 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 | LGA775,PLGA775 |
| Power consumption (TDP) | 140 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-7900X and Pentium D 950. 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 | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Turbo Boost Technology | 2.0 | - |
| Hyper-Threading Technology | + | - |
| TSX | + | - |
| Idle States | no data | + |
| Demand Based Switching | no data | - |
| PAE | no data | 32 Bit |
| Turbo Boost Max 3.0 | + | no data |
| FSB parity | no data | - |
Security technologies
Core i9-7900X and Pentium D 950 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-7900X and Pentium D 950 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 Pentium D 950. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR1, DDR2, DDR3 |
| 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 | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Core i9-7900X and Pentium D 950.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 44 | no data |
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 | 0.40 |
| Recency | 26 June 2017 | 16 January 2006 |
| Physical cores | 10 | 2 |
| Threads | 20 | 2 |
| Chip lithography | 14 nm | 65 nm |
| Power consumption (TDP) | 140 Watt | 130 Watt |
i9-7900X has a 2883% higher aggregate performance score, an age advantage of 11 years, 400% more physical cores and 900% more threads, and a 364% more advanced lithography process.
Pentium D 950, on the other hand, has 8% lower power consumption.
The Intel Core i9-7900X is our recommended choice as it beats the Intel Pentium D 950 in performance tests.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
