After the release of the new Broadwell generation processors, Intel has scheduled the next big thing – the Braswell generation CPUs. The Braswell family will be Bay Trail’s successor and will fill the lower-end segment of the market. Just like last year’s Bay Trail CPUs, the Braswell ones will be suitable for budget notebooks, ultrabooks, 2-in-1 devices. and also give the foundation of Atom SoCs for smartphones and tablets. Later this year we can expect the Cherry Trail CPUs that are specially designed for tablets and they will offer the very same silicon.

But what will the Braswell CPUs offer that will be beneficial to the end consumer? Just like the Broadwell CPUs, the Braswell CPUs are manufactured with 14nm FinFET process making them more energy-efficient, better thermals, and, of course, more transistors in the same die size. Actually, these are the main features that the new CPUs will bring. We came across an engineering sample of the new Pentium N3700 CPU that will most likely be the flagship of the Braswell generation processors. Furthermore, Braswell SoCs will accommodate 8th generation Intel HD Graphics cores, meaning the Braswell will skip the Haswell integrated GPUs. Other chips part of the Braswell generation are Celeron and Atom processors. It’s more likely to see them in Chromebooks and mobile devices such as smartphones and tablets. Nevertheless, we will try to give you as much information as possible about the newly announced Pentium N3700.

Contents


Architecture

The new Braswell family promises increased overall performance, but the main focus here is the improved power efficiency and lower thermals. Also, 8th generation Intel HD Graphics will most likely bring a big leap in graphics performance over last year’s Bay Trail CPUs. We will make sure to check that, but first let’s take a look what makes the new CPUs tick.

cost-curve_large

The new architecture looks quite promising as it lowers the TDP to 6W, while last years Bay Trail CPUs consume 7.5W and this might not seem as much, but this is 20% more efficient and it may result in a serious battery performance leap in a smaller form factor notebooks. It’s important to note that Intel outed 4 CPUs part of the Baswell family and they are aimed at ultrabooks and notebooks. We are talking about Celeron N3000, Celeron N3050, Celeron N3150, and Pentium N3700. While the Celeron N3000 is a CPUs designed only for notebooks, the more powerful Celeron N3050, Celeron N3150 and Pentium N3700 will be also available in desktop variants. The most important specs can be seen in the table below.

intel-2015_01

However, all of those CPUs share relatively the same architecture – they integrate 1 or 2 CPU modules, Gen 8-LP graphics unit, and DDR3 memory controller. The CPU modules are using two Airmont CPU cores, meaning the Pentium N3700 has 4 of those and 1MB of shared cached memory at level 2. The cores also support Intel 64 virtualization and most importantly, the Burst Performance feature. The SoC also holds DDR3-1600 memory controller, which means that the Braswell family has finally got to the point of using 1600MHz RAM chips, however, the chip can only support up to 8GB.

The frequency of the Pentium N3700 is 1.6GHz at normal state and can go up to 2.4GHz, which isn’t all that bad, considering the extra-low TDP of just 6W. Moreover, the Celeron N3000 boast a burst frequency of 2.08GHz with even lower TDP of 4W. It will be interesting to see how this one performs in real-life conditions.

Model Cores/Threads Frequency/Burst L2 Cache Graphics Graphics’ frequency Memory TDP
Celeron N3000 2/2 1.04/2.08 GHz 1MB Gen 8-LP 320-600 MHz DDR3L-1600 4W
Celeron N3050 2/2 1.6/2.16 GHz 1MB Gen 8-LP 320-600 MHz DDR3L-1600 6W
Celeron N3150 4/4 1.6/2.08 GHz 2MB Gen 8-LP 400-640 MHz DDR3L-1600 6W
Celeron N3700 4/4 1.6/2.4 GHz 2MB Gen 8-LP 400-700 MHz DDR3L-1600 6W

Enough with the similarities and moving on to the GPU, where it gets interesting. The Pentium N3700 uses the same 8th generation Intel HD Graphics as its other siblings, but carries more powerful graphics core due to its operating frequency. The normal operating frequency of the GPU is 400MHz making it 100MHz faster even than the Intel HD Graphics 5500 found in the higher-end Broadwell CPUs. The maximum operating frequency goes up to 700MHz, but there’s another significant limitation and that’s the number of EU (Execution Units). Intel HD Graphics 5500 holds 24 EUs, while the Braswell CPUs uses 16 EUs integrated with the same architecture, as Intel likes to standardize its graphics units between Core and Atom products. Simply put, we can still expect big improvement in the graphics department, but let’s not keep our hopes high. You can see the design of the graphics processor in the image below, but keep in mind that this is true for the Core M implementation, but the Braswell equivalent won’t differ much as only the EUs will be 16, not 24.

Intel24EU-640x488

Supported technologies and features

As mentioned above, the new Braswell CPUs will support 2-channel memory up to 8GB of DDR3(L)-1600MHz. The PCI Express revision is 2.0 and other interesting features are the support of Virtualization and Burst Performance technologies. To take one step further, Intel has implemented support for DirectX 12 and Open GL 4.2 if you are running Windows 10. It can also support 4K resolution and up three external displays, while internally, the platform will handle eDP 1.4 up to 2650 x 1440. The external monitors can be connected via HDMI or Display Port. And the best part is that Braswell chips can run on Android, Chrome, Linux and Windows platforms, but on the other hand, this is a necessity as Intel is struggling on the mobile market and it will need all the extra CPUs to turn things around.

  • MMX instructions
  • SSE / Streaming SIMD Extensions
  • SSE2 / Streaming SIMD Extensions 2
  • SSE3 / Streaming SIMD Extensions 3
  • SSSE3 / Supplemental Streaming SIMD Extensions 3
  • SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4
  • EM64T / Extended Memory 64 technology / Intel 64
  • NX / XD / Execute disable bit
  • VT-x / Virtualization technology
  • BPT / Burst Performance technology

Performance and benchmarking

CPU performance

Results are from the Cinebench 20 CPU test (the higher the score, the better)
1631193797 753 laptop default
Intel Pentium N3700
Pentium N3700 prototype
price
performance
1636357188 630 laptop main 109 Satellite C55 A
Intel Core i3-4005U
Toshiba Satellite C55
laptop main 153 Aspire E5 551
AMD A10-7300
Acer Aspire E5-551
1636357193 640 laptop main 137 review lenovo ideapad yoga 11s raqwe.com 01
Intel Core i5-4210Y
Lenovo IdeaPad Yoga 11s
Results are from the Fritz chess benchmark (the higher the score, the better)
1631193797 753 laptop default
Intel Pentium N3700
Pentium N3700 prototype
price
4068.00

performance
1636357188 630 laptop main 109 Satellite C55 A
Intel Core i3-4005U
Toshiba Satellite C55
3401.00-16.4%
laptop main 153 Aspire E5 551
AMD A10-7300
Acer Aspire E5-551
3944.00-3%
1636357193 640 laptop main 137 review lenovo ideapad yoga 11s raqwe.com 01
Intel Core i5-4210Y
Lenovo IdeaPad Yoga 11s
0.00-100%
Results are from our Photoshop benchmark test (the lower the score, the better)
1631193797 753 laptop default
Intel Pentium N3700
Pentium N3700 prototype
price
43.26

performance
1636357188 630 laptop main 109 Satellite C55 A
Intel Core i3-4005U
Toshiba Satellite C55
53.00+22.5%
laptop main 153 Aspire E5 551
AMD A10-7300
Acer Aspire E5-551
56.55+30.7%
1636357193 640 laptop main 137 review lenovo ideapad yoga 11s raqwe.com 01
Intel Core i5-4210Y
Lenovo IdeaPad Yoga 11s
43.30+0.1%

GPU performance

Results are from the 3DMark: Fire Strike (Graphics) benchmark (higher the score, the better)
1631193797 753 laptop default
Intel HD Graphics 405 (Braswell)
Pentium N3700 prototype
price
324.00

performance
1636357188 630 laptop main 109 Satellite C55 A
Intel HD Graphics 4400
Toshiba Satellite C55
512.00+58%
laptop main 153 Aspire E5 551
AMD Radeon R6 (Mullins)
Acer Aspire E5-551
926.00+185.8%
1636357193 640 laptop main 137 review lenovo ideapad yoga 11s raqwe.com 01
Intel HD Graphics 4200
Lenovo IdeaPad Yoga 11s
458.00+41.4%
Results are from the Unigine Heaven 3.0 benchmark (higher the score, the better)
1631193797 753 laptop default
Intel HD Graphics 405 (Braswell)
Pentium N3700 prototype
price
114.00

performance
1636357188 630 laptop main 109 Satellite C55 A
Intel HD Graphics 4400
Toshiba Satellite C55
146.00+28.1%
laptop main 153 Aspire E5 551
AMD Radeon R6 (Mullins)
Acer Aspire E5-551
293.00+157%
1636357193 640 laptop main 137 review lenovo ideapad yoga 11s raqwe.com 01
Intel HD Graphics 4200
Lenovo IdeaPad Yoga 11s
137.00+20.2%
Results are from the Unigine Heaven 4.0 benchmark (higher the score, the better)
1631193797 753 laptop default
Intel HD Graphics 405 (Braswell)
Pentium N3700 prototype
price
74.00

performance
1636357188 630 laptop main 109 Satellite C55 A
Intel HD Graphics 4400
Toshiba Satellite C55
126.00+70.3%
laptop main 153 Aspire E5 551
AMD Radeon R6 (Mullins)
Acer Aspire E5-551
0.00-100%
1636357193 640 laptop main 137 review lenovo ideapad yoga 11s raqwe.com 01
Intel HD Graphics 4200
Lenovo IdeaPad Yoga 11s
0.00-100%
Results are from the Unigine Superposition benchmark (higher the score, the better)
1631193797 753 laptop default
Intel HD Graphics 405 (Braswell)
Pentium N3700 prototype
price
0.00

performance
1636357188 630 laptop main 109 Satellite C55 A
Intel HD Graphics 4400
Toshiba Satellite C55
0.00
laptop main 153 Aspire E5 551
AMD Radeon R6 (Mullins)
Acer Aspire E5-551
0.00
1636357193 640 laptop main 137 review lenovo ideapad yoga 11s raqwe.com 01
Intel HD Graphics 4200
Lenovo IdeaPad Yoga 11s
0.00

Verdict

The overall performance of the Pentium N3700 is more than delightful and can be easily compared to more powerful CPUs which are representing the next tier, like the Core i5-4210Y. Moreover, it’s important to note that the TDP of the whole SoC is just 6W, making it more power-efficient than its competitors and predecessors. We can also see that the GPU is significantly more powerful than the one used in Bay Trail’s CPUs and, of course, the GPU supports DirectX 12 and Open GL 4.2, as long as you run on Windows 10.

However, these performance gains and new features look more appealing than the ones we saw with the Broadwell CPUs and it seems that Intel has invested a lot in the lower-end segment of the market. It was easy to foresee it since Intel has been struggling a lot on the mobile market and we can expect Cherry Trail CPUs, based on the very same architecture for tablets, to be launched later this year.

We are also working on testing the engineering sample with benchmarks using DirectX 12 API and we will soon release an article with the conducted tests and everything related. Stay tuned as the DirectX 12 promises big performance leaps.

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