AMD Ryzen 9 3900XT vs Intel Xeon E5-2666 v3
We do not have any performance data for the Ryzen 9 3900XT and the Xeon E5-2666 v3 for the 3DMark 11 Performance Physics benchmark.
We do not have any performance per dollar data for the Ryzen 9 3900XT and the Xeon E5-2666 v3 for the 3DMark 11 Performance Physics benchmark.
Summary
About the AMD Ryzen 9 3900XT CPU
The AMD Ryzen 9 3900XT is a 12-core (24-thread) processor built for the desktop CPU market. It launched in Q3 2020 with a suggested retail price of $499. It is part of AMD's Ryzen 9 lineup, which is based on the Zen 2 microarchitecture. The 3900XT is compatible with AMD Socket AM4 motherboards and is fabricated on TSMC's 7 nm manufacturing process.
Memory and Cache
The Ryzen 9 3900XT supports DDR4 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Ryzen 9 3900XT has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 64 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 Ryzen 9 3900XT features 12 total cores which can process 24 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 3.9 GHz, and it can boost up to 4.7 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 Ryzen 9 3900XT 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 Xeon E5-2666 v3 CPU
The Intel Xeon E5-2666 v3 is an end-of-life 10-core (20-thread) processor built for the server CPU market. It launched in Q4 2014. It is part of Intel's Xeon E5 lineup, which is based on the Haswell-EP microarchitecture. The E5-2666 v3 is compatible with Intel Socket 2011-3 motherboards and is fabricated on Intel's 22 nm manufacturing process.
Memory and Cache
The Xeon E5-2666 v3 supports DDR3, DDR4 memory and features a quad-channel memory controller, allowing it to utilize 4 memory modules simultaneously. In terms of cache, the Xeon E5-2666 v3 has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 64 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 256 KB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 25 MB.
Cores and Clock Speeds
The Xeon E5-2666 v3 features 10 total cores which can process 20 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 2.9 GHz, and it can boost up to 3.5 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is locked, making it incapable of overclocking for pushing performance further.
Integrated Graphics
The Xeon E5-2666 v3 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 | Ryzen 9 3900XT | Xeon E5-2666 v3 |
|---|---|---|
| Manufacturer | AMD | Intel |
| Series | Ryzen 9 | Xeon E5 |
| Market Segment | Desktop | Server |
| Release Date | Q3 2020 | Q4 2014 |
| Launch Price (MSRP) | $499 | -- |
| Production Status | Active | End-of-life |
| Shop | Check Price | Check Price |
Benchmark Performance
We do not have any performance data for the Ryzen 9 3900XT and the Xeon E5-2666 v3 for the 3DMark 11 Performance Physics benchmark.
We do not have any performance per dollar data for the Ryzen 9 3900XT and the Xeon E5-2666 v3 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.
| 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.
| 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 | Ryzen 9 3900XT | Xeon E5-2666 v3 |
|---|---|---|
| Geekbench 6.2 Multi-Core | 9,961 | -- |
| Geekbench 6.2 Single-Core | 1,739 | -- |
| CPU Mark Multi-Thread | 32,708 (+128.55%) | 14,311 |
| CPU Mark Single-Thread | 2,747 (+39.37%) | 1,971 |
Technical Specs
Manufacturing Details
Information about the CPU's manufacturing like its foundry, process size, and transistor count.
| Spec | Ryzen 9 3900XT | Xeon E5-2666 v3 |
|---|---|---|
| Manufacturer | AMD | Intel |
| Foundry | TSMC | Intel |
| Process Size | 7 nm | 22 nm |
| Transistors | 7,600 million | 2,600 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 | Ryzen 9 3900XT | Xeon E5-2666 v3 |
|---|---|---|
| Series | Ryzen 9 | Xeon E5 |
| Microarchitecture | Zen 2 | Haswell-EP |
| Codename | Matisse 2 | Haswell-EP |
| Memory Support | DDR4 | DDR3, DDR4 |
| Memory Channels | Dual-channel | Quad-channel |
| ECC Memory | No | Yes |
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 | Ryzen 9 3900XT | Xeon E5-2666 v3 |
|---|---|---|
| Cores | 12 | 10 |
| Threads | 24 | 20 |
| Clock Speed | 3.9 GHz | 2.9 GHz |
| Turbo Clock | 4.7 GHz | 3.5 GHz |
| Base Clock | 100 MHz | 100 MHz |
| Multiplier | 39.0x | 29.0x |
| 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 | Ryzen 9 3900XT | Xeon E5-2666 v3 |
|---|---|---|
| L1 Cache | 64 KB | 64 KB |
| L2 Cache | 512 KB | 256 KB |
| L3 Cache | 64 MB | 25 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 | Ryzen 9 3900XT | Xeon E5-2666 v3 |
|---|---|---|
| Socket | AMD Socket AM4 | Intel Socket 2011-3 |
| PCI Express | PCIe 4.0 x24 | PCIe 3.0 x40 |
| Thermal Design Power (TDP) | 105 W | 135 W |
| Package Power Tracking (PPT) | 142 W | -- |
| Tcase Max | 95 °C | -- |
| TJ Max | -- | 79 °C |
Graphics, Features, & Extensions
Additional CPU features like its bundled coolers, integrated graphics, and extensions/technologies.
| Spec | Ryzen 9 3900XT | Xeon E5-2666 v3 |
|---|---|---|
| Extensions / Technologies | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AES, AVX, AVX2, BMI1, BMI2, SHA, F16C, FMA3, AMD64, EVP, AMD-V, SMAP, SMEP, SMT, Precision Boost 2, XFR 2 | MMX, SSE, SSE2, SSE3, SSSE3, SSE4.2, AVX, AVX2, EIST, HTT, Intel 64, XD bit, VT-x, VT-d, AES-NI, TSX, TXT, CLMUL, FMA3, F16C, BMI1, BMI2, Boost 2.0, vPro |
* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance Physics benchmark and MSRP.