The Intel Core i7-4578U is a LV (low voltage) dual-core processor for large ultrabooks launched in Q3/2014. 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 3.0 GHz, but can dynamically increase clock rates with Turbo Boost up to 3.5 GHz.
Architecture
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.
Performance
The performance of the Core i7-4578U is slightly above the older and somewhat higher clocked Core i7-3540M. 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.
Graphics
The integrated Iris Graphics 5100 offers 40 Execution Units (EUs) clocked at 200 - 1200 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 (e.g. GeForce GT 720M).
Power Consumption
The i7-4578U 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, well-cooled ultrabooks.
The Intel Core i7-4510U is an ULV (ultra low voltage) dual-core processor for ultrabooks launched in Q2 2014. 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 2.0 GHz, but can dynamically increase clock rates with Turbo Boost up to 3.1 GHz for 1 active core or 2.8 GHz for 2 active cores. That's 100 - 200 MHz more than the i7-4500U (1.8 - 3.0 GHz).
Architektur
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.
Performance
The performance of the Core i7-4510U is similar to the old and slightly higher clocked Core i7-3667U. 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.
Graphics
The integrated HD Graphics 4400 offers 20 Execution Units (EUs) clocked at 200 - 1100 MHz with Turbo Boost, making it somewhat faster than the former HD Graphics 4000. However, the HD 4400 is slightly slower than the HD 5000 found on a number of other ULV models.
Power Consumption
The i7-4510U is rated at a TDP of 15 W including the graphics card, memory controller, VRMs and the integrated chipset. Therefore, the CPU is suited for small ultrabooks 11-inches or greater.
- Range of benchmark values for this graphics card - Average benchmark values for this graphics card * Smaller numbers mean a higher performance 1 This benchmark is not used for the average calculation
v1.28
log 16. 08:47:09
#0 ran 0s before starting gpusingle class +0s ... 0s
#1 checking url part for id 6224 +0s ... 0s
#2 checking url part for id 5863 +0s ... 0s
#3 redirected to Ajax server, took 1739692029s time from redirect:0 +0s ... 0s
#4 did not recreate cache, as it is less than 5 days old! Created at Sun, 16 Feb 2025 05:19:29 +0100 +0s ... 0s
#5 composed specs +0.006s ... 0.006s
#6 did output specs +0s ... 0.006s
#7 getting avg benchmarks for device 6224 +0.001s ... 0.007s
#8 got single benchmarks 6224 +0s ... 0.007s
#9 getting avg benchmarks for device 5863 +0.007s ... 0.014s
#10 got single benchmarks 5863 +0.018s ... 0.032s
#11 got avg benchmarks for devices +0s ... 0.032s
#12 min, max, avg, median took s +0.034s ... 0.066s