amazon Radeon HD 7790 reviews
AMD introduced the Radeon HD 7790 to fill the gap between the Radeon HD 7770 and Radeon HD 7850 and also compete directly with the GeForce GTX 650 Ti. Considering the performance ratio on the price, the Radeon HD 7790 will be one of the attractive options, suitable for most users.
Design
The Asus HD7790, GIGABYTE GV-R779OC, HIS H779FT1GD and MSI R7790 all have the same graphics card design (GPU), AMD Radeon HD 7790 (code-named Bonair XT), Graphics Core Next (GCN Architecture) Version 1.1 with 28 nm manufacturing technology.
Compared to the old Radeon HD 6700 VLIW4 graphics architecture (code-named Juniper), the new GCN architecture improves GPU multi-threading processing, which can better utilize graphics processing power with multiple pipelines. At the same time without significantly affecting overall performance. In addition, the application of 28nm manufacturing technology also allows narrowing the distance between the transistor connections, so that the new GPUs have faster processing speed, low power consumption and cooler when operating.
The Radeon HD 7790 has 14 compute units with a total of 896 stream processing units, 56 texture unit units, and 16 color ROP units. Unit). AMD said that the standard HD 7790 clock is 1,000 MHz, 1 GB of GDDR5 memory, 1,500 MHz of memory and 128 bits of memory bandwidth.
In terms of design, the Asus, Gigabyte, HIS, and MSI graphics cards all have their own features, about two-thirds the size of high-end graphics cards and occupy two expansion slots on the card. Motherboard when assembling. So these graphics cards are not only suitable for standard mini-tower enclosures, but also for standard desktop enclosures.
The point to note is that both the Asus HD7790, Gigabyte GV-R779OC, MSI R7790 and HIS H779FT1GD are all overclocked manufacturers will need a power line + 12V PCIe 6-pin power reaches 150W and 450W power supply to ensure Ensure power for the whole system.
Technology, support features
As mentioned above, the design of the four graphics cards of Asus, Gigabyte, HIS and MSI with the AMD Radeon HD 7790 GPU and Graphics Graphics Graphics Architecture Next as high-end models as Radeon HD 7950 and 7970 should still support Full support for DirectX 11.1 and OpenGL 4.2 graphics libraries as well as optimized multi-threading, 24-bit anti-aliasing and 16-surface texture filtering, Enhanced Quality Anti-Aliasing (EQAA) and Morphological Anti- Aliasing (MLAA) enhances image antialiasing quality during post-construction and after-construction to achieve the “sharpest” image.
In addition to the unique technologies AMD has equipped for the Radeon HD 7900 series, such as AMD HD3D technology to meet the needs of 3D movie playback, AMD Eyefinity technology allows the transmission of images to six monitors at the same time through the port. DVI, HDMI 1.4a and DisplayPort to display resolutions of up to 4096×2160 pixels (4K Support) for gaming, movie playback or multi-tasking applications. AMD PowerPlay and ZeroCore Power smart power management technologies reduce power consumption in idle state.
The Radeon HD 7900 series also includes the new AMD PowerTune technology, which dynamically adjusts the TDP (power consumption) value to boost the GPU clock to a higher level, delivering the highest performance in the industry. Specialized graphics applications or games dubbed “hardware killers”.
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Asus HD7790-DC2OC-1GD5
Asus HD7790-DC2OC-1GD5 (Asus HD7790) graphics card manufacturers are overclocked manufacturers so the GPU operates at a clock speed of 1075 MHz and memory clock frequency of 1600 MHz; Higher 7.5% and 6.67% respectively than the standard AMD announced. The card measures 21.6×13.9×3.8 cm, weighs in at 450g and adopts DirectCU II heatsink technology with two 80mm cooling fans and an 8mm heatpipe duct to reduce the GPU temperature to about 20 degree C compared to conventional radiators.
Gigabyte GV-R779OC-1GD
Gigabyte GV-R779OC-1GD (Gigabyte R779OC) measures 20.3×13.6×4.2 cm and weighs 470 g. The Triangle Cool Cooling Technology incorporates a large 100 mm cooling fan to ensure efficient heat dissipation and smooth operation. Similar to the Asus HD 7790, this card is also pre-overclocked Gigabyte on the factory, specifically the GPU operating at 1075 MHz clock and memory frequency is also pushed up to 1600 MHz.
HIS H779FT1GD
Using the same PCB size as the Asus HD7790 and MSI R7790, but the HIS H779FT1GD looks “longer” because the plastic design protects the cooling fan and the heat sink below. ICooler Turbo heatsink delivers good performance while not causing noise during operation. Another difference is that the HIS H779FT1GD only overclocks the GPU (1,075 MHz) while retaining the RAM.
MSI R7790-1GD5-OC
The MSI R7790-1GD5-OC (MSI R7790) measures 18.5×12.5×3.8 cm, weighs 410 g and features its unique Propeller Blade Technology and 100mm large fan to ensure heat dissipation. Efficient, smooth operation. Like the HIS H779FT1GD, the MSI R7790 is only GPU clocked up by the manufacturer to 1,050 MHz while keeping the RAM clock constant. So the test results of the MSI R7790-1GD5-OC are usually slightly lower than the three remaining graphics cards in most performance evaluations, which is understandable.
Performance
To assess the power of the four Radeon HD 7790 cards, Test Lab uses a test configuration built on the Gigabyte Z77X-UD3H motherboard platform, Intel Core i7-3770K processor, Windows 8 Pro 64bit OS and Controller Catalyst driver 12.101.2.1. In addition to the overall performance benchmarking tools 3DMark 11 and Heaven DX11 Benchmark 4.0, Test Lab also uses some DirectX 11 games such as DiRT 3, Alien Vs. Predator and Crysis 2 to test the graphics performance of the graphics card at 1280×720 pixel resolution (HD 720p) and 1920×1080 pixels (HD 1080p).
Overall, the scores achieved by the four graphics cards are negligible but not as significant as the design of the same graphics card based on the AMD Radeon HD 7790 GPU. Specifically, the Gigabyte R779OC is slightly better in probability tests. Multi-threaded graphics engine based on 3DMark 11 with 6,010 points in Performance mode (resolution 1280×720 pixels) and 1,645 points in Extreme mode (1920×1080 pixels resolution). Asus HD7790 and HIS H779FT1GD have the advantage of the Heaven DX11 Benchmark v4.0, which has many similarities with 3DMark 11 but highlights Tessellation – one of the outstanding technologies of the DirectX 11 graphics library. With three graphics card in the same test, the MSI R7790 also achieved impressive results, although the GPU card only operates at a clock speed of 1,050 MHz and RAM is 1,500 MHz.
For the test games DiRT 3, Alien vs. Predator 1.03 and Crysis 2, all four graphics cards are pretty good, the ability to process images in the game reaches 30 fps (full frame) in full HD resolution with graphics quality. Pushed to the highest level. For example, with Alien Vs. Predator, MSI R7790 29.5 fps and Asus HD7790 30.6 fps. The “Road Dust” in DiRT 3 also failed to block the power of four Asus, Gigabyte, HIS and MSI graphics cards, of which the MSI R7790 was 53.8 fps and the highest was the Asus HD7790 and HIS H779FT1GD with 55.5 fps.
Temperature, power consumption
Testing the graphics card thermal clearance and power consumption of the test configuration (not including the monitor) through 3DMark 11 graphics tests, temperature and system power are recorded through the GPU-z software. And Logger Lite in normal environment (about 30 – 31 degrees Celsius).
At no-load mode, the graphics card operation smoothly, GPU temperature difference is negligible, of which the lowest is the MSI R7790 with 43 degrees C, power consumption of the test configuration is 110.2 W (average value). The Gigabyte GV-R779OC has the highest GPU temperature (46 degrees Celsius), while the highest tested configuration with the Asus HD7790 graphics card is 116.8 W.
With 3DMark 11 graphics tests, the GPU is only running at 1,050 MHz, which is lower than the three graphics cards in the same test, which is the MSI R7790’s “superiority” when the GPU temperature is only 65 degrees Celsius. The corresponding test configuration consumption is 191.3 W (the highest value). The Asus HD7790 is equipped with two 80mm cooling fans and an 8mm heatpipe duct that maintains the GPU temperature of 69 degrees Celsius and the highest test configuration capacity is 201.7 W. Gigabyte heat sink The R779OC and HIS H779FT1GD have a simpler design and do not have the heat pipe so the GPU temperature is quite high, 75 and 79 degrees Celsius, respectively.
Optimal performance/price
The test results show that the Radeon HD 7790 graphics card easily conveys Test Lab scripts built in 720p HD resolution. However, at a resolution of 1920×1080 pixels, the processing power of the Radeon HD 7790 significantly reduced, this is also normal with popular graphics card models.
