Performance
EPYC 7451
No data available
Atom N455
No data available
We do not have any performance data for the EPYC 7451 and the Atom N455 for the 3DMark 11 Performance Physics benchmark.
Performance per dollar
EPYC 7451
No data available
Atom N455
No data available
We do not have any performance per dollar data for the EPYC 7451 and the Atom N455 for the 3DMark 11 Performance Physics benchmark.
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Summary
#
About the AMD EPYC 7451 CPU
The AMD EPYC 7451 is a 24-core (48-thread) processor built for the server CPU market. It launched in Q2 2017. It is part of AMD's EPYC lineup, which is based on the Zen microarchitecture. The EPYC 7451 is compatible with AMD Socket SP3 motherboards and is fabricated on GlobalFoundries's 14 nm manufacturing process.
Memory and Cache
The EPYC 7451 supports DDR4 memory and features a octa-channel memory controller, allowing it to utilize 8 memory modules simultaneously. In terms of cache, the EPYC 7451 has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 96 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 512 KB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 64 MB.
Cores and Clock Speeds
The EPYC 7451 features 24 total cores which can process 48 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 2.3 GHz, and it can boost up to 3.2 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is unlocked, enabling overclocking for those seeking to push the CPU's performance further.
Integrated Graphics
The EPYC 7451 does not include an integrated graphics solution. A dedicated graphics card will be required if you require a monitor with your computer.
About the Intel Atom N455 CPU
The Intel Atom N455 is an end-of-life 1-core (2-thread) processor built for the mobile CPU market. It launched in Q2 2010. It is part of Intel's Atom lineup, which is based on the Pineview microarchitecture. The N455 is compatible with Intel BGA 559 motherboards and is fabricated on Intel's 45 nm manufacturing process.
Memory and Cache
The Atom N455 supports DDR2, DDR3 memory. In terms of cache, the Atom N455 has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 56 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 512 KB, is larger but slower than the L1.
Cores and Clock Speeds
The Atom N455 is a single core CPU, but is able to process 2 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 1667.0 MHz. Higher clock speeds result in higher performance for the same microarchitecture. The multiplier is locked, making it incapable of overclocking for pushing performance further.
Integrated Graphics
The Atom N455 does not include an integrated graphics solution. A dedicated graphics card will be required if you require a monitor with your computer.
General Info
General overview of the CPU, including details like its manufacturer, release date, launch price, and current production status.
| Info | EPYC 7451 | Atom N455 |
|---|---|---|
| Manufacturer | AMD | Intel |
| Series | EPYC | Atom |
| Market Segment | Server | Mobile |
| Release Date | Q2 2017 | Q2 2010 |
| Production Status | Active | End-of-life |
| Shop | Check Price | Check Price |
Benchmark Performance
#
Performance
EPYC 7451
No data available
Atom N455
No data available
We do not have any performance data for the EPYC 7451 and the Atom N455 for the 3DMark 11 Performance Physics benchmark.
Performance per dollar
EPYC 7451
No data available
Atom N455
No data available
We do not have any performance per dollar data for the EPYC 7451 and the Atom N455 for the 3DMark 11 Performance Physics benchmark.
Relative Performance
The average score in the benchmark test can be compared to similar CPUs to assess relative performance. Generally, powerful CPUs tend to have higher scores.
Choose Baseline CPU:EPYC 7451 orAtom N455
| CPU | Benchmark Performance | ||
|---|---|---|---|
| Our database does not have enough data to compare the benchmark performance with other CPUs. | |||
Relative Value For Money
The average performance per dollar in the benchmark test can be compared to similar CPUs to assess relative value. A higher score implies a better value for your money.
Choose Baseline CPU:EPYC 7451 orAtom N455
| CPU | Performance Per Dollar | ||
|---|---|---|---|
| Our database does not have enough data to compare the benchmark performance per dollar with other CPUs. | |||
Benchmark Scores
This table showcases the average performance scores achieved by both CPUs across industry-standard benchmark tests. These scores provide a valuable insight into overall performance. Powerful CPUs tend to have higher scores.
- Popular
| Benchmark | EPYC 7451 | Atom N455 |
|---|---|---|
| Geekbench 6.2 Multi-Core | -- | 80 |
| Geekbench 6.2 Single-Core | -- | 53 |
| CPU Mark Multi-Thread | 25,863 (+13,300.52%) | 193 |
| CPU Mark Single-Thread | 1,955 (+634.96%) | 266 |
Benchmarks Source: Notebookcheck
Technical Specs
#
Manufacturing Details
Information about the CPU's manufacturing like its foundry, process size, and transistor count.
| Spec | EPYC 7451 | Atom N455 |
|---|---|---|
| Manufacturer | AMD | Intel |
| Foundry | GlobalFoundries | Intel |
| Process Size | 14 nm | 45 nm |
| Transistors | 4,800 million | 123 million |
Architecture
CPU architecture specs like its memory channels, memory support, and microarchitecture. Newer CPU architectures can minimize bottlenecks and improve execution efficiency using more advanced techniques.
| Spec | EPYC 7451 | Atom N455 |
|---|---|---|
| Series | EPYC | Atom |
| Microarchitecture | Zen | Pineview |
| Codename | Naples | Pineview |
| Memory Support | DDR4 | DDR2, DDR3 |
| Memory Channels | Octa-channel | -- |
| ECC Memory | Yes | No |
Cores & Clock Speeds
Processing power information like its cores and clock speed. These specs impact how fast they can handle instructions and tasks. These have a strong impact on the CPU's performance.
| Spec | EPYC 7451 | Atom N455 |
|---|---|---|
| Cores | 24 | 1 |
| Threads | 48 | 2 |
| Clock Speed | 2.3 GHz | 1667.0 MHz |
| Turbo Clock | 3.2 GHz | -- |
| Base Clock | 100 MHz | 133 MHz |
| Multiplier | 23.0x | 14.0x |
| Multiplier Unlocked | Yes | No |
Cache
CPU cache specs like its L1 & L2 cache. These provide the CPU with a small, but super-fast memory access. A larger cache can improve a CPU's performance.
| Spec | EPYC 7451 | Atom N455 |
|---|---|---|
| L1 Cache | 96 KB | 56 KB |
| L2 Cache | 512 KB | 512 KB |
| L3 Cache | 64 MB | -- |
Compatibility & Power Consumption
Compatibility and power consumption information like its socket type, thermal design power, power limits. These can help verify the CPU's compatibility with other PC components.
| Spec | EPYC 7451 | Atom N455 |
|---|---|---|
| Socket | AMD Socket SP3 | Intel BGA 559 |
| PCI Express | PCIe 3.0 | -- |
| Thermal Design Power (TDP) | 180 W | 7 W |
| Tcase Max | 81 °C | -- |
| TJ Max | -- | 100 °C |
Graphics, Features, & Extensions
Additional CPU features like its bundled coolers, integrated graphics, and extensions/technologies.
| Spec | EPYC 7451 | Atom N455 |
|---|---|---|
| Integrated Graphics | -- | Motherboard Dependent |
| Extensions / Technologies | MMX, EMMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AVX, AVX2, ABM, BMI1, BMI2, FMA3, AES, RdRand, SHA, ADX, CLMUL, F16C, Real, Protected, SMM, FPU, NX bit, SMT, AMD-Vi, AMD-V, SME, TSME, SEV, SenseMi | MMX, SSE, SSE2, SSE3, SSSE3, Intel 64, XD bit, HTT |
* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance Physics benchmark and MSRP.