Ultra 5 245K vs i7-6800K

#ad 
Buy on Amazon
VS

Aggregate performance score

Core i7-6800K
2016
6 cores / 12 threads, 140 Watt
6.76
Core Ultra 5 245K
2024
14 cores / 14 threads, 125 Watt
27.74
+310%

Core Ultra 5 245K outperforms Core i7-6800K by a whopping 310% based on our aggregate benchmark results.

Primary details

Comparing Core i7-6800K and Core Ultra 5 245K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1034174
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.6978.80
Market segmentDesktop processorDesktop processor
Power efficiency4.5721.00
Architecture codenameBroadwell-E (2016)Arrow Lake-S (2024−2025)
Release date31 May 2016 (8 years ago)24 October 2024 (less than a year ago)
Launch price (MSRP)$345$309

Cost-effectiveness evaluation

Performance per price, higher is better.

Ultra 5 245K has 4563% better value for money than i7-6800K.

Detailed specifications

Core i7-6800K and Core Ultra 5 245K basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores6 (Hexa-Core)14 (Tetradeca-Core)
Threads1214
Base clock speed3.4 GHz4.2 GHz
Boost clock speed3.8 GHz5.2 GHz
Bus rateno data159 MHz
L1 cache32 KB (per core)112 KB (per core)
L2 cache256 KB (per core)3 MB (per core)
L3 cache15 MB (shared)24 MB (shared)
Chip lithography14 nm3 nm
Die sizeno data243 mm2
Maximum case temperature (TCase)72 °Cno data
Number of transistorsno data17,800 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier++

Compatibility

Information on Core i7-6800K and Core Ultra 5 245K compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration11
SocketFCLGA20111851
Power consumption (TDP)140 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-6800K and Core Ultra 5 245K. You'll probably need this information if you require some particular technology.

AES-NI++
AVX++
vProno data+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX-+
Idle States+no data
SIPP-+
Smart Response+no data
Turbo Boost Max 3.0+no data

Security technologies

Core i7-6800K and Core Ultra 5 245K technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-6800K and Core Ultra 5 245K are enumerated here.

VT-d++
VT-x++
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-6800K and Core Ultra 5 245K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR5
Maximum memory size128 GBno data
Max memory channels4no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataArc Xe-LPG Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Core i7-6800K and Core Ultra 5 245K.

PCIe version3.05.0
PCI Express lanes2820

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i7-6800K 6.76
Ultra 5 245K 27.74
+310%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i7-6800K 10738
Ultra 5 245K 44059
+310%

Gaming performance

Pros & cons summary


Performance score 6.76 27.74
Recency 31 May 2016 24 October 2024
Physical cores 6 14
Threads 12 14
Chip lithography 14 nm 3 nm
Power consumption (TDP) 140 Watt 125 Watt

Ultra 5 245K has a 310.4% higher aggregate performance score, an age advantage of 8 years, 133.3% more physical cores and 16.7% more threads, a 366.7% more advanced lithography process, and 12% lower power consumption.

The Core Ultra 5 245K is our recommended choice as it beats the Core i7-6800K in performance tests.


Should you still have questions on choice between Core i7-6800K and Core Ultra 5 245K, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


Intel Core i7-6800K
Core i7-6800K
Intel Core Ultra 5 245K
Core Ultra 5 245K

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4 242 votes

Rate Core i7-6800K on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3 26 votes

Rate Core Ultra 5 245K on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Core i7-6800K or Core Ultra 5 245K, agree or disagree with our judgements, or report an error or mismatch.