amazon APU AMD Kaveri A10-7800 reviews
The new APU Kaveri design is based on the Steamroller microarchitecture, 28nm process and especially 65W power consumption, significantly lower than the 95 W of the same A10-7850K.
Design
A10-7800, A8-7600 and A6-7400K aimed at small-size gaming PCs, smoothly running at low power consumption. The A10-7800 features up to 12 cores with 4 cores of Steamroller and eight cores of Radeon R7 GPUs. The A8-7600 also has four CPU cores and six GPU cores while the popular A6-7400K APUs come with only two CPU cores and four cores GPU Radeon R5.
The APU A10-7800 is in the premium segment of its desktop lineup and has a slightly lower clock speed than the A10-7850K chip that Test Lab has introduced to readers. The default clock speed of the chip is 3.5 GHz and can accelerate to 3.9 GHz with Turbo Core technology while the A10-7850K runs at 3.7 GHz and 4.0 GHz when accelerated. The difference is that the A10-7800 belongs to the chip line locked multiplier, so only limited overclocking can be achieved by increasing the base clock.
The difference is that the power consumption (TDP) of the A10-7800 is only about 65 W, about 68.4% compared with the same chip A10-7850K and can even run at 45W, however. Will affect the graphics performance.
Integrated Graphics Radeon in the APU Kaveri A10-7800 also supports the GCN 1.1 (Graphics Core Next) architecture, which is used in some gaming consoles such as Microsoft’s Xbox One and Sony’s PlayStation 4, UltraHD resolution (3840 x 2160 pixels), four times higher than standard HD resolution. The Radeon R7 clocked at 720 MHz, 512 stream processing units, 32 units covered Texture texture and 8 color ROP unit.
One of the important improvements of the Kaveri APU generation is the adoption of heterogeneous Uniform Memory Access (HUMA). This memory access mechanism is based on the Heterogeneous System Architecture (HSA), which allows the CPU and GPU to access and use the entire system memory address, Virtual memory. New chip performance is improved by harnessing the computing power of the CPU and GPU in specific tasks, such as the web browser that can use both CPU and GPU to improve the quality of shared video on the Web.
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Performance
Test Lab tests and compares the performance of two Kaveri chips in the same lineup, the APU A10-7800 and the A10-7850K on the MSI A88XM Gaming motherboard platform and the Windows 7 Ultimate Sp1 operating system.
In addition to the overall performance benchmarking tools PCMark 8 and 3DMark for evaluating graphics performance, Test Lab also uses a number of detailed tests of CPU and GPU computing power and ” “Radeon R7 integrated graphics at 1280×720 pixel resolution (HD 720p) and 1920×1080 pixel (full HD).
Specifically, with 3DMark Cloud Gate, the Kaveri A10-7800 scored 3,050 points for Physics, 10,604 points for Graphics and overall performance of 6,839, which is well above the overall score of A10-7850K to 36%.
With Cinebench R11.5 testing capabilities of 3D rendering of CPUs and integrated graphics, the test configuration achieved 3.34 multi-core CPU tests and 39.8 frames per second (fps) in the OpenGL test.
Similar to PCMark 05, multi-threaded compression and encrypted data can be extracted, compressed, decoded. APU A10-7800 It is also 1.75 to 32.25% higher than the 7850K in the same test.
For the DiRT 3 and Alien Vs. Predator, the processing power of integrated graphics Radeon R7 also achieved good results, the ability to process images in the game exceeded the “30” fps (frames per second) at 720p resolution with the level graphics set. On average, the 2xAA image antialiasing mode and even DiRT 3 still reach 45.1 fps. The predator reaches 27.2 fps when pushing the resolution up to 1920×1080 pixels.
Electric used
Test the power consumption of the test configuration (not including the monitor) through the 3DMark graphics test, the system power is recorded through the Logger Lite software in normal environment (about 30 – 31 degrees Celsius).
In idle mode, the test configuration consumes only 45.6W while the A10-7850K is 59W (average). In the 3DMark test, the new APU Kaveri model only requires about 115W while the A10-7850K consumes 122.1W (the highest value).
General assessment
Overall, even with slightly lower clock speeds, the A10-7800 scores for most of the tests are higher than the APUs in the A10-7850K, especially in terms of graphics performance. Even test configurations can still play some heavy games, such as DiRT 3 still running smoothly when pushing resolution to 1920×1080 pixels, setting the anti-aliasing 2xAA mode.
