Core™ i9-9900
G-Score 64 Overall Score
8 cores / 16 threads, up to 5.00 GHz, 65.00 W TDP
GeeCoolGuest
GeeCoolCPU Comparison
Ryzen™ 9 3900X
G-Score 68 Overall Score
12 cores / 24 threads, up to 4.60 GHz, 105.00 W TDP, 64.00 MB cache
VERDICT
Recommended Ryzen™ 9 3900X
Same tier, both fine; Ryzen™ 9 3900X just crosses the G-SCORE line first. Scenario-first: Compute Index favors Ryzen™ 9 3900X (~+7%). Stack on Efficiency Index: +27%, Gaming Index, +18% together—that is the everyday case for Ryzen™ 9 3900X. Platform planning: match cooling and board tier to up to 4.6 GHz, 64 MB L3 cache, 12 / 24. Slim margins forgive informed gut calls—trust yours here.
Generated by GeeCool AI
Head-to-Head Specs
8 / 16
Cores
12 / 24
5.0 GHz
Clock
4.6 GHz
16 MB
Cache
64 MB
65 W
Power
105 W
Six Index Comparison
Gaming Index
Game performanceBetter in this index AMD Ryzen™ 9 3900X
82
97
Core™ i9-9900 Ryzen™ 9 3900X
Align your pick with Gaming Index if frame stability matters more than spec-sheet core counts.
Content Creation Index
Editing, rendering & streamingBetter in this index Intel® Core™ i9-9900 Processor
68
63
Core™ i9-9900 Ryzen™ 9 3900X
Creation workloads care about encode, render, and memory bandwidth—Content Creation Index reflects that mix.
Compute Index
Compilation & multithreaded workloadsBetter in this index AMD Ryzen™ 9 3900X
64
69
Core™ i9-9900 Ryzen™ 9 3900X
For dev work and multithreaded desktop tasks, prioritize Compute Index.
AI Capability
On-device AI workloadsBetter in this index Intel® Core™ i9-9900 Processor
49
43
Core™ i9-9900 Ryzen™ 9 3900X
Planning to run local models or AI tools? Compare AI Capability explicitly.
Efficiency Index
Performance per wattBetter in this index AMD Ryzen™ 9 3900X
56
71
Core™ i9-9900 Ryzen™ 9 3900X
Small builds, quiet systems, and always-on desktops should weigh Efficiency Index heavily.
Value Index
Capability vs platform costBetter in this index Intel® Core™ i9-9900 Processor
38
35
Core™ i9-9900 Ryzen™ 9 3900X
Value is not simply cheapest—Value Index measures capability against platform cost.
Key Differences
Spec Core™ i9-9900 Ryzen™ 9 3900X
硬件类型 CPU CPU
核心 / 线程 8 / 16 12 / 24
最高 Boost 5.0 GHz 4.6 GHz
L3 缓存 16 MB 64 MB
TDP 65 W 105 W
平台 FCLGA1151 AM4
内存支持 DDR4-2666 DDR4
Buying Choice
Why choose Core™ i9-9900?
- Up to 5.00 GHz boost — stronger single-core bursts
- Hardware better suited to local AI and inference workloads
- Lower platform cost with less cooling pressure
Why choose Ryzen™ 9 3900X?
- 64.00 MB L3 cache — smoother gaming with fewer hitches
- 12 cores / 24 threads — higher multithreaded throughput
- Efficiency-focused specs for quiet, cool builds
Left/right order follows slug order in the URL