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Intel Core i5-4258U

Intel 4258U

The Intel Core i5-4258U is a LV (low voltage) dual-core processor for large ultrabooks launched in Q2 2013. It is based on the Haswell architecture and is manufactured in 22nm. Due to Hyper-Threading, the two cores can handle up to four threads in parallel, leading to better utilization of the CPU. Each core offers a base speed of 2.4 GHz, but can dynamically increase clock rates with Turbo Boost up to 2.9 GHz for 1 or 2 active cores.

Haswell is the successor to the Ivy Bridge architecture with improvements on both GPU and CPU performance. The CPUs are produced in 22nm and offer an optimized branch prediction as well as additional execution ports, improving the performance per clock by almost 10 percent. Furthermore, new features like AVX2 and FMA should increase the performance in future applications.

Due to these architectural improvements, the performance is slightly above a similarly clocked Ivy Bridge CPU. Therefore, the Core i5-4258U is almost as fast as the older i5-3230M. However, when using new instruction sets such as AVX2 the performance can be significantly better. Thus, the CPU has sufficient power for office and multimedia purposes as well as more demanding applications.

The integrated Iris Graphics 5100 offers 40 Execution Units (EUs) clocked at 200 - 1100 MHz with Turbo Boost, making it significantly faster than the HD Graphics 4000. As a result, the Iris Graphics competes with dedicated lower mid-range graphics cards. However, even fast dual-channel memory limits the performance.

The i5-4258U is rated at a TDP of 28 W including the graphics card, memory controller, VRMs and the integrated chipset. Therefore, the CPU is suited for larger ultrabooks 14-inches or greater.

SeriesIntel Core i5
CodenameHaswell
Series: Core i5 Haswell
Intel Core i5-4340M (compare)2900 - 3600 MHz2 / 43 MB
Intel Core i5-4210H (compare)2900 - 3500 MHz2 / 43 MB
Intel Core i5-4330M (compare)2800 - 3500 MHz2 / 43 MB
Intel Core i5-4200H (compare)2800 - 3400 MHz2 / 43 MB
Intel Core i5-4308U (compare)2800 - 3300 MHz2 / 43 MB
Intel Core i5-4310M (compare)2700 - 3400 MHz2 / 43 MB
Intel Core i5-4400E (compare)2700 - 3300 MHz2 / 43 MB
Intel Core i5-4300M (compare)2600 - 3300 MHz2 / 43 MB
Intel Core i5-4210M (compare)2600 - 3200 MHz2 / 43 MB
Intel Core i5-4288U (compare)2600 - 3100 MHz2 / 43 MB
Intel Core i5-4278U (compare)2600 - 3100 MHz2 / 43 MB
Intel Core i5-4200M (compare)2500 - 3100 MHz2 / 43 MB
» Intel Core i5-4258U2400 - 2900 MHz2 / 43 MB
Intel Core i5-4310U (compare)2000 - 3000 MHz2 / 43 MB
Intel Core i5-4360U (compare)1500 - 3000 MHz2 / 43 MB
Intel Core i5-4300U (compare)1900 - 2900 MHz2 / 43 MB
Intel Core i5-4350U (compare)1400 - 2900 MHz2 / 43 MB
Intel Core i5-4210U (compare)1700 - 2700 MHz2 / 43 MB
Intel Core i5-4260U (compare)1400 - 2700 MHz2 / 43 MB
Intel Core i5-4402E (compare)1600 - 2700 MHz2 / 43 MB
Intel Core i5-4200U (compare)1600 - 2600 MHz2 / 43 MB
Intel Core i5-4250U (compare)1300 - 2600 MHz2 / 43 MB
Intel Core i5-4300Y (compare)1600 - 2300 MHz2 / 43 MB
Intel Core i5-4302Y (compare)1600 - 2300 MHz2 / 43 MB
Intel Core i5-4202Y (compare)1600 - 2000 MHz2 / 43 MB
Intel Core i5-4220Y (compare)1600 - 2000 MHz2 / 43 MB
Intel Core i5-4210Y (compare)1500 - 1900 MHz2 / 43 MB
Intel Core i5-4200Y (compare)1400 - 1900 MHz2 / 43 MB
Clock Rate2400 - 2900 MHz
Level 1 Cache128 KB
Level 2 Cache512 KB
Level 3 Cache3 MB
Number of Cores / Threads2 / 4
Max. Power Consumption (TDP = Thermal Design Power)28 Watt
Transistor Count1300 Million
Manufacturing Technology22 nm
Die Size181 mm2
Max. Temperature100 °C
SocketFCBGA
FeaturesIris Graphics 5100 (200 - 1100 MHz), DDR3(L)-1600 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
GPUIntel Iris Graphics 5100 (200 - 1100 MHz)
64 Bit64 Bit support
Starting Price$342 U.S.
Announcement Date06/04/2013
Product Link (external)Intel Core i5 4258U

Benchmarks

Cinebench R15 - CPU Multi 64Bit
min: 261     avg: 276     median: 276 (13%)     max: 291 Points
Cinebench R15 - CPU Single 64Bit
min: 106     avg: 109.5     median: 109.5 (19%)     max: 113 Points
Cinebench R11.5 - CPU Multi 64Bit
min: 2.92     avg: 3     median: 3 (13%)     max: 3.15 Points
Cinebench R11.5 - CPU Single 64Bit
min: 1.21     avg: 1.2     median: 1.2 (55%)     max: 1.27 Points
Cinebench R10 - Rendering Single 32Bit
min: 4312     avg: 4571.5     median: 4571.5 (55%)     max: 4831 Points
Cinebench R10 - Rendering Multiple CPUs 32Bit
min: 9638     avg: 10121     median: 10121 (20%)     max: 10604 Points
X264 HD Benchmark 4.0 - Pass 2
18.5 fps (15%)
TrueCrypt - Serpent Mean 100MB
0.2 GB/s (0%)
TrueCrypt - Twofish Mean 100MB
0.3 GB/s (0%)
Geekbench 2 - 32 Bit - Stream
min: 6428     avg: 7032     median: 7032 (57%)     max: 7636 Points
Geekbench 2 - 32 Bit - Memory
min: 6211     avg: 6487.5     median: 6487.5 (59%)     max: 6764 Points
Geekbench 2 - 32 Bit - Floating Point
min: 6644     avg: 8314     median: 8314 (24%)     max: 9984 Points
Geekbench 2 - 32 Bit - Integer
min: 5218     avg: 5590     median: 5590 (17%)     max: 5962 Points
Geekbench 2 - 32 Bit - Total Score
min: 6528     avg: 6866.5     median: 6866.5 (26%)     max: 7205 Points
Geekbench 3 - 32 Bit Multi-Core Score
min: 5634     avg: 5782.5     median: 5782.5 (19%)     max: 5931 Points
Geekbench 3 - 32 Bit Single-Core Score
min: 2701     avg: 2739     median: 2739 (59%)     max: 2777 Points
Mozilla Kraken 1.1 - Total Score *
min: 2040     avg: 2166.1     median: 2166.1 (4%)     max: 2292.2 ms
Sunspider - 1.0 Total Score *
min: 99.1     avg: 121.6     median: 121.6 (3%)     max: 144 ms
Sunspider - 0.9.1 Total Score *
min: 98.2     avg: 138.1     median: 138.1 (1%)     max: 178 ms
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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