Xeon E7340 vs EPYC 7451
Aggregate performance score
EPYC 7451 outperforms Xeon E7340 by a whopping 307% 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 | 602 | 1763 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.93 | 0.07 |
| Market segment | Server | Server |
| Series | AMD EPYC | no data |
| Power efficiency | 3.56 | 1.97 |
| Designer | AMD | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Naples (2017−2018) | Tigerton (2007) |
| Release date | 20 June 2017 (9 years ago) | 5 September 2007 (18 years ago) |
| Launch price (MSRP) | $2,400 | $1,980 |
Cost-effectiveness evaluation
Performance per price, higher is better.
EPYC 7451 has 1229% better value for money than Xeon E7340.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
Basic parameters of EPYC 7451 and Xeon E7340: 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 | 24 (Tetracosa-Core) | 4 (Quad-Core) |
| Threads | 48 | 4 |
| Base clock speed | 2.3 GHz | 2.4 GHz |
| Boost clock speed | 2.3 GHz | 2.4 GHz |
| Multiplier | 23 | no data |
| L1 cache | 2.25 MB | 64 KB (per core) |
| L2 cache | 12 MB | 4 MB (per die) |
| L3 cache | 64 MB (shared) | 8 MB L2 Cache |
| Chip lithography | 14 nm | 65 nm |
| Die size | 213 mm2 | 2x 143 mm2 |
| Maximum case temperature (TCase) | no data | 66 °C |
| Number of transistors | 19200 Million | 582 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
| VID voltage range | no data | 1.0V-1.5V |
Compatibility
Information on EPYC 7451 and Xeon E7340 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 | 2 (Multiprocessor) | 4 |
| Socket | TR4 | PGA604,PPGA604 |
| Power consumption (TDP) | 180 Watt | 80 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7451 and Xeon E7340. 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 | + |
Security technologies
EPYC 7451 and Xeon E7340 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 EPYC 7451 and Xeon E7340 are enumerated here.
| AMD-V | + | - |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7451 and Xeon E7340. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR2, DDR3 Depends on motherboard |
| Maximum memory size | 2 TiB | no data |
| Max memory channels | 8 | no data |
| Maximum memory bandwidth | 170.671 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by EPYC 7451 and Xeon E7340.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 128 | 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 | 15.58 | 3.83 |
| Recency | 20 June 2017 | 5 September 2007 |
| Physical cores | 24 | 4 |
| Threads | 48 | 4 |
| Chip lithography | 14 nm | 65 nm |
| Power consumption (TDP) | 180 Watt | 80 Watt |
EPYC 7451 has a 307% higher aggregate performance score, an age advantage of 9 years, 500% more physical cores and 1100% more threads, and a 364% more advanced lithography process.
Xeon E7340, on the other hand, has 125% lower power consumption.
The AMD EPYC 7451 is our recommended choice as it beats the Intel Xeon E7340 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.
