IntelBX80605I5750
IntelBX80684I58400

4 Cores, 4 Threads @2.66GHz, Nehalem.
Release date: Q3 2009.

6 Cores, 6 Threads @2.8GHz, Coffee Lake.
Release date: Q4 2017.

Real World Speed
Performance profile from 356,016 user samples
43,796 User Benchmarks
Best Bench: 71% Base clock 3.65 GHz, turbo 3.8 GHz (avg)
Worst Bench: 48% Base clock 2.65 GHz, turbo 2.4 GHz (avg)
Poor: 48% Great: 71%
SPEED RANK: 559th / 1442
Gaming
Gaming 62%
Destroyer
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 44%
Speed boat
312,220 User Benchmarks
Best Bench: 89% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 61% Base clock 2.8 GHz, turbo 0.8 GHz (avg)
Poor: 61% Great: 89%
SPEED RANK: 212th / 1442
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 66%
Battle cruiser
Effective Speed
Effective CPU Speed
61.5 % 81.8 % Much faster effective speed.
+33%
Memory
Avg. Memory Latency
85.6 Pts +1% 84.9 Pts
1-Core
Avg. Single Core Speed
66.7 Pts 113 Pts Much faster single-core speed.
+69%
2-Core
Avg. Dual Core Speed
131 Pts 224 Pts Much faster dual-core speed.
+71%
4-Core
Avg. Quad Core Speed
218 Pts 434 Pts Hugely faster quad-core speed.
+99%
8-Core
Avg. Octa Core Speed
228 Pts 564 Pts Hugely faster octa-core speed.
+147%
Memory
OC Memory Latency
94.3 Pts +0% 94.2 Pts
1-Core
OC Single Core Speed
85.1 Pts 120 Pts Much faster OC single-core speed.
+41%
2-Core
OC Dual Core Speed
172 Pts 237 Pts Much faster OC dual-core speed.
+38%
4-Core
OC Quad Core Speed
299 Pts 471 Pts Much faster OC quad-core speed.
+58%
8-Core
OC Octa Core Speed
304 Pts 657 Pts Hugely faster OC octa-core speed.
+116%
Market Share
Based on 67,744,482 CPUs tested
Market Share
Market Share (trailing 30 days)
0.05 % 0.81 % Insanely higher market share.
+1,520%
Value
Value For Money
89.2 % 101 % Better value.
+13%
User Rating
UBM User Rating
54 % 61 % More popular.
+13%
Price
Price (score)
$72 Much cheaper.
+45%
$131
Age
Newest
177 Months 78 Months Much more recent.
+56%
TDP
Thermal Design Power (TDP)
95 Watts 65 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
4 cores 6 cores Much higher core count.
+50%
Threads
CPU Processing Threads
4 threads 6 threads Much higher thread count.
+50%
Lithography
Manufacturing process
45 nm 14 nm Much newer manufacturing.
+69%
Base Clock
Base Clock Speed
2.66 GHz 2.8 GHz Slightly faster base frequency.
+5%
Turbo Clock
Turbo Clock Speed
3.2 GHz 4 GHz Faster turbo frequency.
+25%
64-Core
OC Multi Core Speed
300 Pts 675 Pts Hugely faster OC 64-core speed.
+125%
64-Core
Avg. Multi Core Speed
230 Pts 588 Pts Hugely faster 64-core speed.
+156%
Series
CPU Architecture
Nehalem Coffee Lake
Socket
Motherboard Socket
LGA1156 FCLGA1151
Graphics
Integrated Graphics
None UHD 630
Launch Date
Launch Date
Q3'09 Q4'17
Cache
Cache
8 MB SmartCache 9 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.2 SSE4.1/4.2, AVX2
Embedded Options Available
Embedded Options Available
Yes No
Lithography
Lithography
45 nm 14 nm
Recommended Price
Recommended Customer Price
$193.00 - $213.00 N/A
Max Turbo Frequency
Max Turbo Frequency
3.2 GHz 4.00 GHz
Bus Speed
Bus Speed
2.5 GT/s DMI 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
16 GB 64 GB
Memory Types
Memory Types
DDR3 1066/1333 DDR4-2666
Thermal Monitoring Technologies
Thermal Monitoring Technologies
No Yes
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
1.0 2.0
AES New Instructions
Intel® AES New Instructions
No Yes
PCI Express Revision
PCI Express Revision
2.0 3.0
PCI Express Configurations
PCI Express Configurations ‡
1x16, 2x8 Up to 1x16 or 2x8 or 1x8+2x4

More specs » More specs »
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The Intel Core i5-750 is a mid-range quad core, four thread desktop processor which is part of the Nehalem series launched in Q3 2009. Considering the age of this processor, its effective speed of 67 is damn impressive. It has a base frequency of 2.66 GHz, which boosts to 3.2 GHz turbo when under load and can be significantly extended beyond by overclocking. Combined with a decent graphics card, the i5-750 should give a reasonable gaming experience even by today’s standards. There are of course faster modern alternatives such as the i5-4690K, but if you already have the 750 with an older graphics card it's likely that your GPU will need updating before the CPU. Comparing the 750 and 4690K shows that the 4690K has an effective speed of 109 which is 62% faster than the now five years old i5-750. [Nov '14 CPUPro]

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The i5-8400 is a competitively priced hex-core processor from Intel’s 8th generation of Core processors (Coffee Lake). Along with the release of the unlocked i5-8600K, this is the first time that six-core processors have featured in the i5 line-up. Like the other Coffee Lake processors, the i5-8400 is based upon an improved version of Intel’s 14nm architecture which featured in both Skylake and Kaby Lake. Early benchmarks reveal that for average quad core usage (most games employ a maximum of four cores) the i5-8400 performs way above its pay grade. It achieves quad core mixed speeds close to Intel’s outgoing 2017 flagship the $300, quad-core, 8 thread i7-7700k, which to date has been a strong favourite for high-end gaming setups. On paper, the i5-8400 has a base clock of 2.8 GHz (Intel are significantly downplaying the performance of this SKU by giving it a relatively low nominal base clock), an all core boost of 3.8 GHz (this is the effective base clock figure that counts) and a single core boost of 4 GHz. This compares reasonably well to the i5-8600K which has a base clock of 3.6 GHz, all core boost of 4.1 GHz and a single core boost of 4.3 GHz. The i5-8400 also features 9MB of L3 cache and an energy-thrifty TDP of 65W. Priced at under $190, the i5-8400 offers fantastic value for money. Unfortunately, like the other Coffee Lake processors, the i5-8400 will require a new 300 series motherboard, and at the time of writing, the only available version is Intel’s high-end Z370 which isn't an ideal pairing for the i5-8400. The Z series motherboards are designed to cater for the unlocked and overclockable "K" SKUs. Cheaper 300 series motherboards will be available in 2018 at which time the 8400 will offer even better value for money. [Oct '17 CPUPro]

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Processor Rankings (Price vs Performance) April 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]

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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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Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

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 Frequently Asked Questions

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Intel Core i5-12600K $178Nvidia RTX 4070 $539Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
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