Ryzen Threadripper PRO 9945WX vs Core 2 Extreme QX9770
Aggregate performance score
Ryzen Threadripper PRO 9945WX outperforms Core 2 Extreme QX9770 by a whopping 1135% 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 | 1878 | 147 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 0.81 | 3.90 |
| Designer | Intel | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Yorkfield (2007−2009) | Shimada Peak (2025) |
| Release date | March 2008 (17 years ago) | July 2025 (recently) |
Detailed specifications
Core 2 Extreme QX9770 and Ryzen Threadripper PRO 9945WX 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) | 12 (Dodeca-Core) |
| Threads | 4 | 24 |
| Base clock speed | 3.2 GHz | 4.7 GHz |
| Boost clock speed | 3.2 GHz | 5.4 GHz |
| Bus rate | 1600 MHz | no data |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 12 MB (shared) | 1 MB (per core) |
| L3 cache | 0 KB | 64 MB (shared) |
| Chip lithography | 45 nm | 4 nm |
| Die size | 2x 107 mm2 | 2x 70.6 mm2 |
| Maximum case temperature (TCase) | 55 °C | no data |
| Number of transistors | 820 million | 16,630 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | + |
| VID voltage range | 0.85V-1.3625V | no data |
Compatibility
Information on Core 2 Extreme QX9770 and Ryzen Threadripper PRO 9945WX 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 | LGA775 | sTR5 |
| Power consumption (TDP) | 136 Watt | 350 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Extreme QX9770 and Ryzen Threadripper PRO 9945WX. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
| Precision Boost 2 | no data | + |
Security technologies
Core 2 Extreme QX9770 and Ryzen Threadripper PRO 9945WX 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 2 Extreme QX9770 and Ryzen Threadripper PRO 9945WX are enumerated here.
| AMD-V | - | + |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme QX9770 and Ryzen Threadripper PRO 9945WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Core 2 Extreme QX9770 and Ryzen Threadripper PRO 9945WX.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 136 |
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 | 2.62 | 32.36 |
| Physical cores | 4 | 12 |
| Threads | 4 | 24 |
| Chip lithography | 45 nm | 4 nm |
| Power consumption (TDP) | 136 Watt | 350 Watt |
Core 2 Extreme QX9770 has 157.4% lower power consumption.
Ryzen Threadripper PRO 9945WX, on the other hand, has a 1135.1% higher aggregate performance score, 200% more physical cores and 500% more threads, and a 1025% more advanced lithography process.
The AMD Ryzen Threadripper PRO 9945WX is our recommended choice as it beats the Intel Core 2 Extreme QX9770 in performance tests.
Note that Core 2 Extreme QX9770 is a desktop processor while Ryzen Threadripper PRO 9945WX is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
