Grand 4 cool is one of the first to use NVIDIA Tegra 4 phones, powered by Tegra 4 processor 1.8GHz, 2G high-end combination of Ram. Performance we already have about Tegra 4 to the corresponding tablets, cell phones tested, and this grand 4 How would Tegra 4 performance on performance?
We first know what Tegra 4 architecture, Tegra 4 is a high-performance, quad-core processors, the main framework for four Cortex-A15 core, core version r2p2, frequency in 1.8GHz~2.0GHz. In addition to the high frequency of quad-core Cortex-A15 core, paired with a low frequency Cortex-A15 as "co-processor". While the GPU side, Tegra 4 to continue to a unified shader architecture, but this time extend the Tegra GPU specification 4 to 6 vertices (FP32 24 cores), 4 3-deep pixel units (FP20 48 cores), the total number of cores up to 72, this specification is 6 times as long as Tegra 3. Grand 4 cool using Tegra 4 1.8GHz, the AP40, which is available on the common Tegra SoC for use on 4 mobile.
Theory test
Theory on performance tests, we are still running some CPU and GPU performance on Grand theoretical performance test 4
Rabbit test
Rabbit score more than 30,000, the excellent level
Vellamo 2.0.2
Qualcomm launched a HTML5 test page performance, Grand 4 's homepage testing scores close to 3000,Metal testing more than 1100, very good
GFXBench 2.7.2
GFXBench 2.7 Offscreen tested 18 frame GFXBench 2.7 Offscreen tested 48 frame
3DMark
Test in 3DMark Unlimited graphics performance graphics test 1, graphics, test 2 number of frames and the physical test is 84.3, 46.8 and 39.7 respectively, including physical test frames better
Basemark X
Due to Grand 4 uses the full HD resolution of 1920*1080, so the Onscreen and Offscreen testing almost the same as the number of frames
Grand 4 graphics performance test summary frames
CPU performance test
In addition to the theoretical performance, we also focus on versatility of the CPU in the daily application of performance, cool Grand 4 quad-core processor Cortex-A15 schema is used, which is by far the common most powerful CPU architecture, we use Web pages JavaScript, video software decoded, Simulator and test ways to view 4 General performance-related tests.
Sunspider 1.0.2, this is a Web page JavaScript performance tests, Grand view of 4 in the test result is 533.9ms (the lower the better), the performance is excellent
Video decoding software is also an important measure of CPU performance test project, the test project test multithreaded performance CPU, and video hardware solution is different, this is one way to test CPU general purpose computing power, and will use multi-core processors using BSPlayer version 1.9.153, using video 1080P ref16 FPS60 MP4 video
From video software solutions, Grand 4 play good average of 46 frames frames and open the CPU frequency monitor CPU frequency can be observed in paragraph 1.5 after video of stay in 1.6GHz, maintaining high frequency is very good.
Simulator testing VR Shinecon glasses
Use GBA.emu (1.5.12) bring their own Benchmark, a 14KB BIOS.zip when the test objects, this test can accurately reflect the CPU computing power, Grand 4 frame number 154
Game frame test
Game testing is one of the most intuitive method for measuring GPU performance, we use mainstream big game with frame detection software FPS Meter test the Grand game 4 performance.
Modern warfare 4, high effect, average frame: 26
Wild drag racing 8, high effect, the average number of frames 28
Real racing 3, high effect, average frame: 46
Video hardware decoding test
Video decoding capability is our important standard to measure the performance of a mobile phone, which relates to the SoC DSP and CPU performance of Neon and Tegra series was consistent in this regard are very strong, that use Tegra 4 Grand 4 in video decoding and how about the performance?
Video list:
720P group
FLV OP,1280x720,H.263
MP4 Jay of the nunchaku, 1280x720,H.264 High Profile L5.1, bit-rate 17M
AVI of the realm of samsara trailer 1280x720,Xvid
Official video WMV Microsoft WMVHD, 1280x720,VC-1,MP@HL
RMVB the black God little theatre, 1280x720,RV40
1080P group
MP4 Clannad OP ,1920×1080,H.264 High Profile L5. ref16 VR Shinecon virtual reality headset
MKV Conan theatrical trailer for 15, 1920x1080,H.264 Main Profile L4.0, audio AC-3
Official video WMV Microsoft WMVHD, 1440x1080,VC-1, MP@HL
MP4 2160×1440,ref3,fps=30
MP4 3840×2160,ref3,fps=24
Test results are as follows:
The test results from the above video, video for most mainstream formats, Grand view 4 can be said to be fully supported, and WMV requires software decoding. Amazing is that 720P RMVB using browser can support hardware decoding. Because the Tegra 4 powerful video decode capability, video can be a perfect hard solution of 1440P or even 2160P.
Summary
From the above comprehensive tests for CPU, GPU, decoding performance, Grand 4 performance in line with our expectations, performance worth noting. Especially CPU-side, quad-core Cortex-A15 core for Grand 4 operational performance to provide good protection. GPU, "72 nuclear" Geforce ULP Chang play mainstream games is self-evident. Decoding performance from the Tegra3 era is the strength of this series, also well reflected in the Grand 4, in the face of mainstream hard solution correctly for most of HD video formats, decoding capacity is satisfactory. In addition, the Grand regulation of CPU frequency 4 relatively conservative, if the user wishes to play its real performance, you can try to use third party software to lock the CPU frequency (this kind of applications need root, will destroy the warranty).
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3711 people voted
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