Ryzen Threadripper PRO 3945WX vs Core 2 Extreme X6800
Aggregate performance score
Ryzen Threadripper PRO 3945WX outperforms Core 2 Extreme X6800 by a whopping 2884% 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 | 3046 | 384 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.01 | no data |
| Market segment | Desktop processor | Server |
| Series | Core 2 Extreme (Desktop) | AMD Ryzen Threadripper |
| Power efficiency | 0.36 | 2.88 |
| Designer | Intel | AMD |
| Manufacturer | Intel | TSMC |
| Architecture codename | Conroe XE (2006) | Castle Peak (2020) |
| Release date | 27 July 2006 (19 years ago) | 14 July 2020 (5 years ago) |
| Launch price (MSRP) | $999 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Basic parameters of Core 2 Extreme (Desktop) X6800 and Ryzen Threadripper PRO 3945WX: 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 | 2 (Dual-core) | 12 (Dodeca-Core) |
| Threads | 2 | 24 |
| Base clock speed | 2.933 GHz | 4 GHz |
| Boost clock speed | 0.93 GHz | 4.3 GHz |
| Bus rate | 1066 MHz | no data |
| Multiplier | no data | 40 |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 4 MB (shared) | 512 KB (per core) |
| L3 cache | 0 KB | 64 MB |
| Chip lithography | 65 nm | 7 nm, 12 nm |
| Die size | 143 mm2 | 2x 74 mm2 |
| Maximum case temperature (TCase) | 60 °C | 95 °C |
| Number of transistors | 291 million | 7,600 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Core 2 Extreme (Desktop) X6800 and Ryzen Threadripper PRO 3945WX 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 | 775 | WRX8 |
| Power consumption (TDP) | 75 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Extreme (Desktop) X6800 and Ryzen Threadripper PRO 3945WX. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core 2 Extreme (Desktop) X6800 and Ryzen Threadripper PRO 3945WX are enumerated here.
| AMD-V | - | + |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Extreme (Desktop) X6800 and Ryzen Threadripper PRO 3945WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR4-3200 |
| Maximum memory size | no data | 2 TiB |
| Maximum memory bandwidth | no data | 204.8 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | N/A |
Peripherals
Specifications and connection of peripherals supported by Core 2 Extreme (Desktop) X6800 and Ryzen Threadripper PRO 3945WX.
| PCIe version | 2.0 | 4.0 |
| PCI Express lanes | no data | 128 |
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 | 0.64 | 19.10 |
| Recency | 27 July 2006 | 14 July 2020 |
| Physical cores | 2 | 12 |
| Threads | 2 | 24 |
| Chip lithography | 65 nm | 7 nm |
| Power consumption (TDP) | 75 Watt | 280 Watt |
Core 2 Extreme X6800 has 273% lower power consumption.
Ryzen Threadripper PRO 3945WX, on the other hand, has a 2884% higher aggregate performance score, an age advantage of 13 years, 500% more physical cores and 1100% more threads, and a 829% more advanced lithography process.
The AMD Ryzen Threadripper PRO 3945WX is our recommended choice as it beats the Intel Core 2 Extreme X6800 in performance tests.
Note that Core 2 Extreme X6800 is a desktop processor while Ryzen Threadripper PRO 3945WX 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.
