Intel Core i9-9900X vs Intel Core i5-2500K

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Intel Core i9-9900X
Intel Core i9-9900X Image
Intel Core i5-2500K
Intel Core i5-2500K Image
Intel Core i9-9900X
Intel Core i5-2500K
Key Differences Key Differences Intel Core i9-9900X Intel Core i5-2500K
Cores 10 4
CPU Threads 20 4
Base Clock Speed 3.5GHz 3.4GHz
Turbo Clock Speed 4.4GHz 3.7GHz
TDP (THERMAL DESIGN POINT) 165W 95W
Has integrated graphics No Yes
Performance per watt 61.8 96.0
Performance Performance Intel Core i9-9900X Intel Core i5-2500K
CPU Speed & Cores 10 x 3.5GHz 4 x 3.4GHz
Number of CPU Threads 20 4
L2 Cache Size 10MB 1MB
L3 Cache Size 19.25MB 6MB
Turbo Boost Frequency 4.4GHz 3.7GHz
L1 Cache Size 640KB 256KB
L2 Core 1MB/core 0.25MB/core
L3 Core 1.93MB/core 1.5MB/core
Clock Multiplier 35 33
Turbo Boost Tech Version 2 Not Known
Does it have an unlocked multiplier No Yes
Uses ARM big.LITTLE tech No No
Uses ARM HMP No No
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Features Features Intel Core i9-9900X Intel Core i5-2500K
Has AES Support Yes Yes
Supports CPU Throttling Yes Yes
Supported SSE Version 4.2 4.2
Has AVX Support Yes Yes
Has MMX Tech Support Yes Yes
Has F16C Support Yes No
Has Multithreading Tech Support Yes No
Has NX Processor Bit Support Yes Yes
Has FMA3 Instructions Support Yes No
Supports ARM TrustZone Tech No No
Has FMA4 Instructions Support No No
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General info General info Intel Core i9-9900X Intel Core i5-2500K
Has 64-bit Support Yes Yes
Semiconductor Size 14nm 32nm
TDP (Thermal Design Point) 165W 95W
PCI Express Version 3 2
CPU Temperature 92°C Not Known
Does it have Integrated Graphics No Yes
GPU Base Clock Speed Not Known 850MHz
DirectX Version Info Not Known 10.1
Transistor Count Not Known 995 million
OpenGL Driver Version Not Known 3
OpenGL Driver Version Not Known 1.1
GPU Boost Clock Speed Not Known 1100MHz
Total GPU Execution Units Not Known 12
No. of Supported Displays Not Known 2
Supports Power Optimized L2 Cache No No
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Memory Memory Intel Core i9-9900X Intel Core i5-2500K
RAM Memory Speed 2666MHz 1333MHz
Max Memory Channels 4 2
Supported Memory Size 128GB 32GB
Bus Bandwidth 8GT/s 5GT/s
ECC (Error-Correcting Code) Memory Support No No
DDR Type Memory Version 4 Not Known
Max Memory Bandwidth Not Known 21GB/s
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Benchmarks Benchmarks Intel Core i9-9900X Intel Core i5-2500K
PassMark Score 21793 6387
PassMark Score (Single Thread) 2590 1864
Geekbench 5 Score (Multi-Thread) 10204 Not Known
Cinebench R20 Score (Multi-Thread) 4855 Not Known
Cinebench R20 Score (Single Thread) 455 Not Known
Geekbench 5 Score (Single Thread) 1115 Not Known
PassMark Score (Overclocked) 23091 8113
CPU Performance (Per Watt) 61.8 96.0
Power Consumption Under High Load Not Known 125.6W
Standard Power Consumption Not Known 73.4W
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