The Intel Core i7-4900MQ is a high-end quad-core processor for laptops which has been launched in Q2/2013. It is based on the Haswell architecture and manufactured in 22nm. Due to Hyperthreading, the four cores can handle up to eight threads in parallel leading to better utilization of the CPU. Each core offers a base speed of 2.8 GHz but can dynamically increase clock rates with Turbo Boost up to 3.6 GHz (for 4 active cores), 3.7 GHz (for 2 active cores) and 3.8 GHz (for 1 active core).
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 changes, the overall performance has been improved slightly compared to Ivy Bridge. Therefore, the 4900MQ is about 10 % faster than the former i7-3840QM.
The integrated Intel HD Graphics 4600 offers 20 Execution Units (EUs) clocked at 400 MHz up to 1300 MHz with Turbo Boost, making it about 30 % faster than the HD 4000.
The i7-4900MQ is rated at a TDP of 47 W including graphics card, memory controller and VRMs. Therefore, the CPU is only suited for laptops 15-inches or greater.
The Intel Core i7-7700HQ is a fast quad-core processor for notebooks based on the Kaby Lake H architecture (7th generation Core), which was announced in January 2017 at CES. It is the successor to the Core i7-6700HQ from the Skylake generation and is manufactured in an improved 14 nm+ process, so the clocks are 200 MHz higher at the same TDP. The architecture was not changed, only the video engine got an update (see our Kaby Lake article).
The integrated graphics card is called Intel HD Graphics 630, but the architecture does not differ from the 530 GPU from the Skylake generation and only the clocks are slightly higher.
Performance
Thanks to the 200 MHz higher clocks (5.5-7.6% depending on the Boost), the CPU performance is increased and roughly on par with the Core i7-6970HQ (2.8-3.7 GHz but with 128 MB eDRAM). The TDP can also be reduced to 35 Watts (cTDP down), but this will reduce the performance.
Power Consumption
Due to its 45-Watt TDP, the CPU will be used in bigger notebooks with at least 15 inches most of the time.
The Intel Core i7-7700 is a fast quad-core processor for desktops based on the Kaby Lake architecture and was announced in January 2017. It is the top model of the 65 Watt consumer Kaby-Lake-H series at the time of the announcement. The faster CPUs, like the Core i7-7700K, are specified with 91 Watt. Besides four cores including Hyper-Threading (8 threads) support running at 3.6 - 4.2 GHz, the processor is also equipped with the HD Graphics 630 GPU as well as a dual-channel memory controller (DDR3L-1600/DDR4-2400). It is manufactured in a 14nm process with FinFET transistors.
Architecture
Intel basically uses the same micro architecture compared to Skylake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.
Power Consumption
The chip is manufactured in an improved 14nm process with FinFET transistors, which improves the efficiency slightly.
Average Benchmarks Intel Core i7-4900MQ → 100%n=15
Average Benchmarks Intel Core i7-7700HQ → 107%n=15
Average Benchmarks Intel Core i7-7700 → 117%n=15
- 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 03. 22:33:33
#0 checking url part for id 3665 +0s ... 0s
#1 checking url part for id 8400 +0s ... 0s
#2 checking url part for id 8566 +0s ... 0s
#3 redirected to Ajax server, took 1720038813 +0s ... 0s
#4 did not recreate cache, as it is less than 5 days old! Created at Mon, 01 Jul 2024 05:15:43 +0200 +0s ... 0s
#5 composed specs +0.006s ... 0.006s
#6 did output specs +0s ... 0.006s
#7 getting avg benchmarks for device 3665 +0.001s ... 0.007s
#8 got single benchmarks 3665 +0.009s ... 0.016s
#9 getting avg benchmarks for device 8400 +0.004s ... 0.02s
#10 got single benchmarks 8400 +0.067s ... 0.087s
#11 getting avg benchmarks for device 8566 +0.001s ... 0.088s
#12 got single benchmarks 8566 +0.004s ... 0.092s
#13 got avg benchmarks for devices +0s ... 0.092s
#14 min, max, avg, median took s +0.052s ... 0.144s