Performance
Ryzen 9 3900X28% better
18,93251% of 36,991
Core i7-8700K
14,76640% of 36,991
The Ryzen 9 3900X has 28% better performance than the Core i7-8700K for the 3DMark 11 Performance Physics benchmark.
Performance per dollar
Ryzen 9 3900X
37.9431% of 121.53
Core i7-8700K8% better
41.1334% of 121.53
The Core i7-8700K has 8% better value for the money than the Ryzen 9 3900X for the 3DMark 11 Performance Physics benchmark.
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Summary
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About the AMD Ryzen 9 3900X CPU
The AMD Ryzen 9 3900X is a 12-core (24-thread) processor built for the desktop CPU market. It launched in Q3 2019 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 3900X is compatible with AMD Socket AM4 motherboards and is fabricated on TSMC's 7 nm manufacturing process.
Memory and Cache
The Ryzen 9 3900X 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 3900X 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 3900X 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 3.8 GHz, and it can boost up to 4.6 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 3900X does not include an integrated graphics solution. A dedicated graphics card will be required if you require a monitor with your computer.
Benchmark Performance & Value
The Ryzen 9 3900X has the 80th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 51.18% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D. Its 18,932 score and $499 launch price (MSRP) gives it a performance per dollar of 37.94. This is the 86th best in value for the 3DMark 11 Perf. Physics benchmark.
About the Intel Core i7-8700K CPU
The Intel Core i7-8700K is an end-of-life 6-core (12-thread) processor built for the desktop CPU market. It launched in Q4 2017 with a suggested retail price of $359. It is part of Intel's Core i7 lineup, which is based on the Coffee Lake microarchitecture. The i7-8700K is compatible with Intel Socket 1151 motherboards and is fabricated on Intel's 14 nm manufacturing process. It features the UHD Graphics 630 integrated graphics solution.
Memory and Cache
The Core i7-8700K supports DDR4 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Core i7-8700K 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 12 MB.
Cores and Clock Speeds
The Core i7-8700K features 6 total cores which can process 12 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 3.7 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 Core i7-8700K includes an integrated graphics solution called UHD Graphics 630. This graphics processor is directly integrated into the CPU and is not as powerful as a dedicated graphics card. While integrated graphics can handle basic tasks like web browsing and office applications, it is not suitable for more demanding activities such as gaming or video editing, where a dedicated graphics card offers superior performance.
Benchmark Performance & Value
The Core i7-8700K has the 144th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 39.92% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D. Its 14,766 score and $359 launch price (MSRP) gives it a performance per dollar of 41.13. This is the 71st best in value for the 3DMark 11 Perf. Physics benchmark.
General Info
General overview of the CPU, including details like its manufacturer, release date, launch price, and current production status.
| Info | Ryzen 9 3900X | Core i7-8700K |
|---|---|---|
| Manufacturer | AMD | Intel |
| Series | Ryzen 9 | Core i7 |
| Market Segment | Desktop | Desktop |
| Release Date | Q3 2019 | Q4 2017 |
| Launch Price (MSRP) | $499 | $359 |
| Production Status | Active | End-of-life |
| Shop | Check Price | Check Price |
Benchmark Performance
#
Performance
Ryzen 9 3900X28% better
18,93251% of 36,991
Core i7-8700K
14,76640% of 36,991
The Ryzen 9 3900X has 28% better performance than the Core i7-8700K for the 3DMark 11 Performance Physics benchmark.
The Ryzen 9 3900X is ranked 80th with a score of 18,932, and the Core i7-8700K is ranked 144th with a score of 14,766.
Performance per dollar
Ryzen 9 3900X
37.9431% of 121.53
Core i7-8700K8% better
41.1334% of 121.53
The Core i7-8700K has 8% better value for the money than the Ryzen 9 3900X for the 3DMark 11 Performance Physics benchmark.
The Ryzen 9 3900X is ranked 86th with a performance per dollar of 37.94, and the Core i7-8700K is ranked 71st with a performance per dollar of 41.13.
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:Ryzen 9 3900X or
| CPU | Benchmark Performance | |
|---|---|---|
| Core i5-12400F | 19,436 | +3% |
| Core i9-9980XE | 19,237 | +2% |
| Ryzen 9 3900X | 18,932 | |
| Ryzen 7 3800XT | 18,905 | -0% |
| Core i9-9900KS | 18,694 | -1% |
| Core i9-7900X | 15,260 | -19% |
| Ryzen 7 2700X | 15,098 | -20% |
| Core i7-8700K | 14,766 | -22% |
| Core i7-9700K | 14,657 | -23% |
| Ryzen 7 2700 | 13,959 | -26% |
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:Ryzen 9 3900X or
| CPU | Performance Per Dollar | |
|---|---|---|
| Core i7-9700 | 41.86 | +10% |
| Core i7-8700K | 41.13 | +8% |
| Core i5-11400T | 40.21 | +6% |
| Core i9-10900K | 40.1 | +6% |
| Ryzen 7 1700 | 38.67 | +2% |
| Core i9-11900K | 38.33 | +1% |
| Ryzen 9 5900X | 38.33 | +1% |
| Core i7-9700K | 38.07 | +0% |
| Ryzen 9 3900X | 37.94 | |
| Core i9-9900KS | 36.44 | -4% |
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 3900X | Core i7-8700K |
|---|---|---|
| 3DMark 11 Performance Physics | 18,932 (+28.21%) | 14,766 |
| 3DMark Time Spy CPU | 11,923 (+64.33%) | 7,255.5 |
| Cinebench R15 Multi-Core | 3,049 (+123.86%) | 1,362 |
| Cinebench R15 Single-Core | 207 (+7.81%) | 192 |
| Geekbench 6.2 Multi-Core | 9,950 (+52.82%) | 6,511 |
| Geekbench 6.2 Single-Core | 1,710 (+6.21%) | 1,610 |
| CPU Mark Multi-Thread | 32,647 (+139.38%) | 13,638 |
| CPU Mark Single-Thread | 2,706 | 2,730 (+0.89%) |
Benchmarks Source: Notebookcheck
Technical Specs
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Manufacturing Details
Information about the CPU's manufacturing like its foundry, process size, and transistor count.
| Spec | Ryzen 9 3900X | Core i7-8700K |
|---|---|---|
| Manufacturer | AMD | Intel |
| Foundry | TSMC | Intel |
| Process Size | 7 nm | 14 nm |
| Transistors | 7,600 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 3900X | Core i7-8700K |
|---|---|---|
| Series | Ryzen 9 | Core i7 |
| Microarchitecture | Zen 2 | Coffee Lake |
| Codename | Matisse | Coffee Lake |
| Memory Support | DDR4 | DDR4 |
| Memory Channels | Dual-channel | Dual-channel |
| ECC Memory | No | 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 | Ryzen 9 3900X | Core i7-8700K |
|---|---|---|
| Cores | 12 | 6 |
| Threads | 24 | 12 |
| Clock Speed | 3.8 GHz | 3.7 GHz |
| Turbo Clock | 4.6 GHz | 4.7 GHz |
| Base Clock | 100 MHz | 100 MHz |
| Multiplier | 38.0x | 37.0x |
| Multiplier Unlocked | Yes | Yes |
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 3900X | Core i7-8700K |
|---|---|---|
| L1 Cache | 64 KB | 64 KB |
| L2 Cache | 512 KB | 256 KB |
| L3 Cache | 64 MB | 12 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 3900X | Core i7-8700K |
|---|---|---|
| Socket | AMD Socket AM4 | Intel Socket 1151 |
| PCI Express | PCIe 4.0 x24 | PCIe 3.0 x16 |
| Thermal Design Power (TDP) | 105 W | 95 W |
| Package Power Tracking (PPT) | 142 W | -- |
| Tcase Max | 95 °C | 72 °C |
Graphics, Features, & Extensions
Additional CPU features like its bundled coolers, integrated graphics, and extensions/technologies.
| Spec | Ryzen 9 3900X | Core i7-8700K |
|---|---|---|
| Integrated Graphics | -- | UHD Graphics 630 |
| 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, Intel 64, XD bit, VT-x, VT-d, HTT, AES-NI, TSX, TXT, CLMUL, FMA3, F16C, BMI1, BMI2, Boost 2.0 |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance Physics benchmark and MSRP.