Xeon Gold 6438N vs W-2135
Aggregate performance score
Xeon Gold 6438N outperforms Xeon W-2135 by a whopping 266% 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 | 945 | 145 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 5.10 | 25.82 |
| Market segment | Server | Server |
| Series | Intel Xeon W | no data |
| Power efficiency | 6.17 | 15.44 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Skylake (server) (2017−2018) | Sapphire Rapids (2023−2024) |
| Release date | 29 August 2017 (7 years ago) | 10 January 2023 (2 years ago) |
| Launch price (MSRP) | $835 | $3,351 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon Gold 6438N has 406% better value for money than Xeon W-2135.
Performance to price scatter graph
Detailed specifications
Xeon W-2135 and Xeon Gold 6438N 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 | 6 (Hexa-Core) | 32 (Dotriaconta-Core) |
| Threads | 12 | 64 |
| Base clock speed | 3.7 GHz | 2 GHz |
| Boost clock speed | 4.5 GHz | 3.6 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | no data |
| Multiplier | 37 | no data |
| L1 cache | 64K (per core) | 80K (per core) |
| L2 cache | 1 MB (per core) | 2 MB (per core) |
| L3 cache | 8.25 MB (shared) | 60 MB |
| Chip lithography | 14 nm | Intel 7 nm |
| Die size | 484 mm2 | no data |
| Maximum case temperature (TCase) | 64 °C | 85 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Xeon W-2135 and Xeon Gold 6438N 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) | 2 |
| Socket | FCLGA2066 | FCLGA4677 |
| Power consumption (TDP) | 140 Watt | 205 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon W-2135 and Xeon Gold 6438N. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | + |
| TSX | + | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | - | no data |
| Demand Based Switching | + | no data |
| PAE | 46 Bit | no data |
| Turbo Boost Max 3.0 | - | no data |
| Deep Learning Boost | - | + |
Security technologies
Xeon W-2135 and Xeon Gold 6438N technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | no data |
| MPX | + | - |
| Identity Protection | + | - |
| SGX | - | Yes with Intel® SPS |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon W-2135 and Xeon Gold 6438N are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon W-2135 and Xeon Gold 6438N. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666 | DDR5-4800, DDR5-4400 |
| Maximum memory size | 512 GB | 4 TB |
| Max memory channels | 4 | 8 |
| Maximum memory bandwidth | 85.33 GB/s | no data |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon W-2135 and Xeon Gold 6438N.
| PCIe version | 3.0 | 5 |
| PCI Express lanes | 48 | 80 |
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.
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 | 8.96 | 32.83 |
| Recency | 29 August 2017 | 10 January 2023 |
| Physical cores | 6 | 32 |
| Threads | 12 | 64 |
| Power consumption (TDP) | 140 Watt | 205 Watt |
Xeon W-2135 has 46.4% lower power consumption.
Xeon Gold 6438N, on the other hand, has a 266.4% higher aggregate performance score, an age advantage of 5 years, and 433.3% more physical cores and 433.3% more threads.
The Intel Xeon Gold 6438N is our recommended choice as it beats the Intel Xeon W-2135 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.
