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IntelBX80623I52500K
$246
IntelBX8070110900K
 $246 

4 Cores, 4 Threads @3.3GHz, Sandy Bridge.
Release date: Q1 2011.

10 Cores, 20 Threads @3.7GHz, Comet Lake.
Release date: Q2 2020.

Real World Speed
Performance profile from 250,276 user samples
143,007 User Benchmarks
Best Bench: 79% Base clock 3.3 GHz, turbo 4.6 GHz (avg)
Worst Bench: 44% Base clock 3.3 GHz, turbo 0.5 GHz (avg)
Poor: 44% Great: 79%
SPEED RANK: 505th / 1468
Gaming
Gaming 66%
Battle cruiser
Desktop
Desktop 72%
Battleship
Workstation
Workstation 49%
Yacht
107,269 User Benchmarks
Best Bench: 106% Base clock 3.7 GHz, turbo 5.3 GHz (avg)
Worst Bench: 89% Base clock 3.7 GHz, turbo 2.15 GHz (avg)
Poor: 89% Great: 106%
SPEED RANK: 91st / 1468
Gaming
Gaming 100%
Nuclear submarine
Desktop
Desktop 100%
Nuclear submarine
Workstation
Workstation 107%
UFO
Effective Speed
Effective CPU Speed
65.9 % 99.6 % Much faster effective speed.
+51%
Memory
Avg. Memory Latency
83.1 Pts 91.1 Pts Slightly lower memory latency.
+10%
1-Core
Avg. Single Core Speed
88.4 Pts 149 Pts Much faster single-core speed.
+69%
2-Core
Avg. Dual Core Speed
174 Pts 295 Pts Much faster dual-core speed.
+70%
4-Core
Avg. Quad Core Speed
281 Pts 579 Pts Hugely faster quad-core speed.
+106%
8-Core
Avg. Octa Core Speed
300 Pts 1100 Pts Hugely faster octa-core speed.
+267%
Memory
OC Memory Latency
94.9 Pts 97.4 Pts +3%
1-Core
OC Single Core Speed
114 Pts 158 Pts Much faster OC single-core speed.
+39%
2-Core
OC Dual Core Speed
227 Pts 314 Pts Much faster OC dual-core speed.
+38%
4-Core
OC Quad Core Speed
380 Pts 623 Pts Much faster OC quad-core speed.
+64%
8-Core
OC Octa Core Speed
399 Pts 1222 Pts Hugely faster OC octa-core speed.
+206%
Market Share
Based on 68,935,507 CPUs tested
Market Share
Market Share (trailing 30 days)
0.1 % 0.43 % Hugely higher market share.
+330%
Value
Value For Money
68.2 % 86.6 % Better value.
+27%
User Rating
UBM User Rating
76 % More popular.
+15%
66 %
Price
Price (score)
$246 Much cheaper.
+47%
$463
Age
Newest
166 Months 54 Months Much more recent.
+67%
TDP
Thermal Design Power (TDP)
95 Watts More energy efficient.
+24%
125 Watts
Cores
CPU Processing Cores
4 cores 10 cores Hugely higher core count.
+150%
Threads
CPU Processing Threads
4 threads 20 threads Hugely higher thread count.
+400%
Lithography
Manufacturing process
32 nm 14 nm Much newer manufacturing.
+56%
Base Clock
Base Clock Speed
3.3 GHz 3.7 GHz Faster base frequency.
+12%
Turbo Clock
Turbo Clock Speed
3.7 GHz 5.3 GHz Much faster turbo frequency.
+43%
64-Core
OC Multi Core Speed
407 Pts 2033 Pts Hugely faster OC 64-core speed.
+400%
64-Core
Avg. Multi Core Speed
304 Pts 1888 Pts Hugely faster 64-core speed.
+521%
Series
CPU Architecture
Sandy Bridge Comet Lake
Socket
Motherboard Socket
LGA1155 FCLGA1200
Graphics
Integrated Graphics
HD 3000 UHD 630
Launch Date
Launch Date
Q1'11 Q2'20
Cache
Cache
6 MB SmartCache 20 MB Intel® Smart Cache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Lithography
Lithography
32 nm 14 nm
Max Turbo Frequency
Max Turbo Frequency
3.7 GHz 5.30 GHz
Bus Speed
Bus Speed
5 GT/s DMI 8 GT/s
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 128 GB
Memory Types
Memory Types
DDR3 1066/1333 DDR4-2933
Memory Bandwidth
Max Memory Bandwidth
21 GB/s 45.8 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 3000 Intel® UHD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
850 MHz 350 MHz
# of Displays Supported
# of Displays Supported ‡
2 3
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.1 GHz 1.20 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 2
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
No Yes
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
No Yes
PCI Express Revision
PCI Express Revision
2.0 3

More specs » More specs »

The i5-2500K is a second generation Sandy Bridge processor which is currently two generations old and nearly three years out of date. The many users that had the good sense to purchase this processor should feel in no hurry to upgrade as it's still no slouch, even by today's standards. The benchmark figures indicate that, even at stock clock rates, in terms of real-world performance this processor is approximately 20% slower than the best currently available, not bad considering its age. Given that the 2500K has an unlocked multiplier upping its performance by 10% with stock cooling should not pose much of a problem for the majority of owners. Here is a detailed performance comparison of the 2500K vs 4670K.  [Jul '13 CPUPro]

MORE DETAILS

Intel’s Comet Lake flagship, the i9-10900K, is the fastest gaming and desktop CPU currently available. This ten-core hyperthreaded processor can easily be overclocked so that all twenty threads run at an eye-watering 5.2 GHz. Whilst its stellar performance is second to none, it comes with a premium price tag of $488 USD. The 10900K also requires a new (Z490) LGA1200 motherboard, which Intel has indicated will remain compatible with Rocket Lake CPUs which are due later this year. Whilst AMD’s competing $420 USD Ryzen 3900X and $675 USD Ryzen 3950X do have a greater number of cores, their lower clock speeds and higher memory latency handicap them in non-rendering use cases. Overall, the 10900K has a 16% effective speed advantage over both the 3900X and 3950X. Users that do a lot of rendering should investigate dedicated hardware encoders such as NVENC and Quick Sync as these are far more efficient than CPU based rendering. Comparing the 10900K and 10700K shows that, when paired with a 2060S, the 10700K offers comparable gaming performance for 20% less money. [Jun '20 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) November 2024 CPU Rankings

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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