Intel Core i9-11900KB vs AMD Ryzen 9 3900XT
Comparative analysis of Intel Core i9-11900KB and AMD Ryzen 9 3900XT processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 3DMark Fire Strike - Physics Score.
Differences
Reasons to consider the Intel Core i9-11900KB
- Around 4% higher clock speed: 4.90 GHz vs 4.7 GHz
- Around 67% more L2 cache; more data can be stored in the L2 cache for quick access later
- Around 62% lower typical power consumption: 65 Watt vs 105 Watt
- Around 20% better performance in PassMark - Single thread mark: 3308 vs 2746
Specifications (specs) | |
Maximum frequency | 4.90 GHz vs 4.7 GHz |
L2 cache | 10 MB vs 6 MB |
Thermal Design Power (TDP) | 65 Watt vs 105 Watt |
Benchmarks | |
PassMark - Single thread mark | 3308 vs 2746 |
Reasons to consider the AMD Ryzen 9 3900XT
- Processor is unlocked, an unlocked multiplier allows for easier overclocking
- 4 more cores, run more applications at once: 12 vs 8
- 8 more threads: 24 vs 16
- A newer manufacturing process allows for a more powerful, yet cooler running processor: 7 nm vs 10 nm SuperFin
- 2.7x more L3 cache, more data can be stored in the L3 cache for quick access later
- Around 43% better performance in PassMark - CPU mark: 32670 vs 22917
- Around 11% better performance in 3DMark Fire Strike - Physics Score: 8546 vs 7681
Specifications (specs) | |
Unlocked | Unlocked vs Locked |
Number of cores | 12 vs 8 |
Number of threads | 24 vs 16 |
Manufacturing process technology | 7 nm vs 10 nm SuperFin |
L3 cache | 64 MB vs 24 MB |
Benchmarks | |
PassMark - CPU mark | 32670 vs 22917 |
3DMark Fire Strike - Physics Score | 8546 vs 7681 |
Compare benchmarks
CPU 1: Intel Core i9-11900KB
CPU 2: AMD Ryzen 9 3900XT
PassMark - Single thread mark |
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PassMark - CPU mark |
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3DMark Fire Strike - Physics Score |
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Name | Intel Core i9-11900KB | AMD Ryzen 9 3900XT |
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PassMark - Single thread mark | 3308 | 2746 |
PassMark - CPU mark | 22917 | 32670 |
3DMark Fire Strike - Physics Score | 7681 | 8546 |
Compare specifications (specs)
Intel Core i9-11900KB | AMD Ryzen 9 3900XT | |
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Essentials |
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Architecture codename | Tiger Lake | Zen 2 |
Launch date | Q2'21 | July 2020 |
Launch price (MSRP) | $539 | |
Place in performance rating | 560 | 595 |
Processor Number | i9-11900KB | |
Series | 11th Generation Intel Core i9 Processors | |
Status | Launched | |
Vertical segment | Desktop | Desktop |
OPN PIB | 100-100000277WOF | |
Performance |
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64 bit support | ||
Base frequency | 3.30 GHz | 3.8 GHz |
Bus Speed | 8 GT/s | |
L1 cache | 768 KB | |
L2 cache | 10 MB | 6 MB |
L3 cache | 24 MB | 64 MB |
Manufacturing process technology | 10 nm SuperFin | 7 nm |
Maximum core temperature | 100°C | |
Maximum frequency | 4.90 GHz | 4.7 GHz |
Number of cores | 8 | 12 |
Number of threads | 16 | 24 |
Unlocked | ||
Memory |
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Max memory channels | 2 | 2 |
Maximum memory bandwidth | 51.2 GB/s | |
Maximum memory size | 128 GB | 128 GB |
Supported memory types | Up to 3200 MT/s | DDR4-3200 |
ECC memory support | ||
Graphics |
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Execution Units | 32 | |
Graphics base frequency | 350 MHz | |
Graphics max dynamic frequency | 1.45 GHz | |
Intel® Quick Sync Video | ||
Processor graphics | Intel UHD Graphics for 11th Gen Intel Processors | |
Graphics interfaces |
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Number of displays supported | 4 | |
Graphics image quality |
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4K resolution support | ||
Max resolution over DisplayPort | 7680x4320@60Hz | |
Max resolution over eDP | 4096 x 2304@60Hz | |
Graphics API support |
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DirectX | 12 | |
OpenGL | 4.6 | |
Compatibility |
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Configurable TDP-down | 55 Watt | |
Configurable TDP-up | 65 Watt | |
Max number of CPUs in a configuration | 1 | |
Package Size | 50mm x 26.5mm | |
Sockets supported | FCBGA1787 | AM4 |
Thermal Design Power (TDP) | 65 Watt | 105 Watt |
Peripherals |
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Max number of PCIe lanes | 20 | 20 |
PCIe configurations | Up to 1x16+1x4, 2x8+1x4, 1x8+3x4 | |
PCI Express revision | 4.0 | |
Security & Reliability |
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Execute Disable Bit (EDB) | ||
Intel® Identity Protection technology | ||
Intel® OS Guard | ||
Intel® Secure Key technology | ||
Intel® Software Guard Extensions (Intel® SGX) | ||
Intel® Trusted Execution technology (TXT) | ||
Secure Boot | ||
Advanced Technologies |
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Enhanced Intel SpeedStep® technology | ||
Idle States | ||
Instruction set extensions | Intel SSE4.1, Intel SSE4.2, Intel AVX2 | |
Intel 64 | ||
Intel® AES New Instructions | ||
Intel® Flex Memory Access | ||
Intel® Hyper-Threading technology | ||
Intel® Optane™ Memory Supported | ||
Speed Shift technology | ||
Thermal Monitoring | ||
Virtualization |
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Intel® Virtualization Technology (VT-x) | ||
Intel® Virtualization Technology for Directed I/O (VT-d) | ||
Intel® VT-x with Extended Page Tables (EPT) |