Introduction
Setup
Benchmark Results
.
Artificial Benchmarks
.
Game Benchmarks
.
CPU Benchmarks
Temperatures
and Power Consumption
Battery Life
Conclusion
intro
INTRODUCTION
Intel has finally released their dual core Haswell mobile CPU's and Sager is offering them with their latest laptop offerings including the W230ST. Larry at LPC Digital was kind enough to send me a sample CPU to evaluate in my NP7330, so I put it to the test.
Prema also has released his latest modded BIOS which allows for users to adjust number of cores being utilized, so I also tested the i7-4800MQ in my laptop limiting it to two cores.
setup
SETUP
First let's look at the significant differences between the two CPU's being evaluated:
CPU |
i7-4800MQ |
i5-4200m |
TDP |
47W |
37W |
Physical Cores |
4 |
2 |
Hyperthreading |
Yes |
Yes |
Rated MHz |
2700 |
2500 |
Max Boost 1 Core |
3700 |
3100 |
Max Boost 2 Core |
3600 |
3000 |
Max Boost 3 Core |
3500 |
N/A |
Max Boost 4 Core |
3500 |
N/A |
Max XTU Overclock |
+400 MHz |
Not Adjustable* |
iGPU |
HD 4600 1.3GHz |
HD 4600 1.15GHz |
* By not adjustable, the i5-4200m cannot adjust the clock frequency at all, even downclock. But voltage is adjustable just like with the quad core variants.
The system used as noted is the Sager NP7330 (Clevo W230ST) with the following configuration:
System |
Sager NP7300 (Cleveo W230ST) |
CPU |
i7-4800MQ i5-4200m |
GPU |
nVidia GeForce GTX 765m |
GPU Driver |
nVidia 331.40 Beta |
RAM |
2x8GB DDR3 1866 Corsair |
Drive 1 |
128GB Plextor mSATA III SSD |
Drive 2 |
960GB Crucial M500 SATA III SSD |
Wi-Fi |
Intel 7260 802.11AC |
Mouse |
Logitech Anywhere MX |
BIOS |
Prema's Modded |
Unfortunately the nVidia R331 or 331.58 WHQL drivers came out just after I had finished testing this with the 331.40 beta drivers, and noticed a significant performance improvement with these newer WHQL drivers (i.e. 3DMark 11 from 4300 to 4800 score). But the relative performance difference should be the same.
The i7-4800MQ was modified with Intel XTU by dropping stock voltage -80mV just to keep temps under control. This was not done with the dual core CPU just to evaluate it from a stock perspective.
Three CPU/System configurations were tested:
(1) i7-4800MQ stock speeds with -80mv adjustement
(2) i7-4800MQ with 2 cores disabled at stock speeds with -80mv adjustment
(3) i5-4200M stock speeds and voltage
Each of the configurations were evaluated for general benchmark/performance, CPU and GPU heat, power consumption, CPU utilization (between both dual core configs), and light browsing battery life.
bench
RESULTS
artbench
ARTIFICIAL BENCHMARKS
3DMark 11
3DMark 13
Allbenchmark Catzilla 1.0
Unigine Heaven
Unigine Valley
gamebench
GAME BENCHMARKS
Battlefield 3
Bioshock Infinite
Civilization 5
For Civilization 5, I used the built in FireTuner SDK that allows for auto turns for the human player.
I started a 10 civ large map and ran it for 200 turns to let the unit count increase.
Then I measured the amount of time it took to run for 30 turns.
Crysis 3
Dirt 3
Grid 2
Metro Last Light
Total War Shogun 2
Sleeping Dogs
Tomb Raider
cpubench
CPU BENCHMARKS
7-Zip Compress Open Source Game FlightGear
Cinebench 11.5
wPrime
x264
heatpower
HEAT and POWER CONSUMPTION
CPU Temperatures
GPU Temperatures
power
POWER CONSUMPTION
battery
BATTERY LIFE
The three configurations were tested for battery life. The system is using Prema's Modded BIOS (
biosmods.wordpress.com and was configured for the battery test using the following:
- Power Saver mode
- LCD at 20% brighness
- Backlit keyboard OFF
- Drives set to shut off after 30 minutes
- Fore Firefox Websites refreshed with 5-15 minute intervals
- Battery drained from 100% to 5% with automatic shutdown at 5%
The resulting battery life:
conclusion
CONCLUSION
I used the i5-4200m in my Sager NP7330 for the last couple of weeks and was actually impressed with the overall performance. For genaral use and gaming it seemed to perform remarkably well, even for BF3, which is known to love quad cores over dual cores. Obviously multi-threaded CPU tasks like video rendering, encoding, and compiling will perform much better using a quad core.
Power and temperatures were down slightly even from the quad core running two cores, although not significantly so. 3-5C on average. The i5-4200m also stayed pegged at 3.0GHz regardless of the load thrown at it. There is still opportunity to drop temps a bit by lowering voltage like was done with the quad core.
Battery life didn't make much of a difference with dual or quad or quad with just two cores. So unfortunately you can't expect that to improve.
Overall if you're on a budget, it can't hurt to save the $75-100 difference and put that towards an SSD. You won't see much difference in gaming and general use, just if you need more intense CPU work completed then you will sacrifice that performance.
Last edited by a moderator:
May 7, 2015