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IntelBX80684I38350K
IntelBX80623I52500K
$246

4 Cores, 4 Threads @4.0GHz, Coffee Lake.
Release date: Q3 2017.

 $246 

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

Real World Speed
Performance profile from 166,500 user samples
23,493 User Benchmarks
Best Bench: 93% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 68% Base clock 4 GHz, turbo 1.65 GHz (avg)
Poor: 68% Great: 93%
SPEED RANK: 233rd / 1468
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 88%
Aircraft carrier
Workstation
Workstation 62%
Destroyer
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
Effective Speed
Effective CPU Speed
81.7 % Faster effective speed.
+24%
65.9 %
Memory
Avg. Memory Latency
89 Pts Slightly lower memory latency.
+7%
83.1 Pts
1-Core
Avg. Single Core Speed
123 Pts Much faster single-core speed.
+39%
88.4 Pts
2-Core
Avg. Dual Core Speed
245 Pts Much faster dual-core speed.
+41%
174 Pts
4-Core
Avg. Quad Core Speed
428 Pts Much faster quad-core speed.
+52%
281 Pts
8-Core
Avg. Octa Core Speed
442 Pts Much faster octa-core speed.
+47%
300 Pts
Memory
OC Memory Latency
96.6 Pts +2% 94.9 Pts
1-Core
OC Single Core Speed
146 Pts Faster OC single-core speed.
+28%
114 Pts
2-Core
OC Dual Core Speed
290 Pts Faster OC dual-core speed.
+28%
227 Pts
4-Core
OC Quad Core Speed
544 Pts Much faster OC quad-core speed.
+43%
380 Pts
8-Core
OC Octa Core Speed
557 Pts Much faster OC octa-core speed.
+40%
399 Pts
Market Share
Based on 68,930,309 CPUs tested
Market Share
Market Share (trailing 30 days)
0.03 % 0.1 % Hugely higher market share.
+233%
Value
Value For Money
91.3 % Much better value.
+34%
68.2 %
User Rating
UBM User Rating
55 % 76 % Much more popular.
+38%
Price
Price (score)
$185 Cheaper.
+25%
$246
Age
Newest
86 Months Much more recent.
+48%
166 Months
TDP
Thermal Design Power (TDP)
91 Watts +4% 95 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
4 threads 4 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+56%
32 nm
Base Clock
Base Clock Speed
4 GHz Faster base frequency.
+21%
3.3 GHz
Turbo Clock
Turbo Clock Speed
4 GHz Slightly faster turbo frequency.
+8%
3.7 GHz
64-Core
OC Multi Core Speed
545 Pts Much faster OC 64-core speed.
+34%
407 Pts
64-Core
Avg. Multi Core Speed
445 Pts Much faster 64-core speed.
+46%
304 Pts
Series
CPU Architecture
Coffee Lake Sandy Bridge
Socket
Motherboard Socket
FCLGA1151 LGA1155
Graphics
Integrated Graphics
UHD 630 HD 3000
Launch Date
Launch Date
Q4'17 Q1'11
Cache
Cache
8 MB 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX
Lithography
Lithography
14 nm 32 nm
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2400 DDR3 1066/1333
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 3000
Graphics Base Frequency
Graphics Base Frequency
350 MHz 850 MHz
# of Displays Supported
# of Displays Supported ‡
3 2
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.1 GHz
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
No 2.0
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 2.0

More specs » More specs »

The quad core i3-8350K hails from Intel’s most recent (and as yet unreleased) generation of Coffee Lake processors. It has a stock clock of 4.0 GHz, 8MB of cache and a TDP of 95W. The 8350K is the first i3 processor to feature four cores (previous generations of i3s had two cores and four threads). With this eighth generation of processors, Intel has introduced a step change in their nomenclature which witnesses the old quad core i5s become the new quad core i3s. Our benchmarks show a 25% increase in effective speed between generations of i3 8350K vs 7350K and near equivalence between the outgoing i5-7600K and the new i3-8350K. Although the price points of Coffee Lake are not yet known, if Intel keep them roughly in line with the previous generations (i3 ~= $140) this will represent the best improvement in value for money since Sandy Bridge as the 8350K at $140 would be 34.8% cheaper than a 7600K at $215. Cynics among us will see this as an effort to fend off competition from AMD’s new multi-core Ryzen processors. It appears Intel may have been successful with this move as early benchmarks from the 8350K suggest that it beats the more expensive 8 core Ryzen 7 1700 in single and quad core performance by 25%. The 8350K is a great choice for gaming builds, but the budget will also need to factor in a complementary motherboard based on the new 300 series chipset. Expect the quad core i3-8100 which is the 8350K’s little sister featuring a base clock of 3.6 GHz, to follow shortly. [Aug '17 CPUPro]

MORE DETAILS

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

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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