NVidia GeForce GT 640 Graphics Accelerator: Features, Reviews and Features

, конечно, выдающимися назвать нельзя, но его наличия в составе компьютера на момент начала продаж было вполне достаточно для запуска большинства игрушек на тот момент. The 2012 mid-range graphics card with affordable price and acceptable technical specifications is all about the NVidia GeForce GT 640. Of course, the adapter's characteristics can not be called outstanding, but its availability as a part of the computer at the time of sales was enough to run most of the toys on This moment. It is about this video card and its capabilities that will be discussed later.

Niche of the graphics adapter

для стационарных системных блоков условно подразделяются на две большие группы: Graphical accelerators of the California company NVidia for stationary system blocks are conventionally divided into two large groups:

• Solutions of the premium level with the maximum speed, high energy consumption and high cost. Also, the technical specifications in this respect are indeed beyond competition. Video cards of this group have the abbreviation GTX in the designation .

• The second group of graphic adapters in this leading manufacturer of such products is designated GT. In this case, the performance of the video subsystem is much lower, technical specifications are more modest, and the price is more affordable. It is to this group of devices that the NVidia GeForce GT 640 belongs. The characteristics of this product confirm this once again.

Adapter Settings

Not bad (as for 2012) were the parameters in the NVidia GeForce GT 640. The characteristics of this computer component were as follows:

• GK107. The code name of the chip is GK107. Architecture - Kepler.
• Production technology - 28 nm. The number of transistors is 1.3 billion pieces.
• CUDA – 900 МГц. The operating frequency of the core and CUDA cores is 900 MHz.
• CUDA – 384. The number of CUDA blocks is 384.
• TMU на каждый конвейер — 32. The number of TMUs per conveyor is 32.
• ROP – 16. The number of ROP modules is 16.
• DirectX и OpenGL. At the system software level, DirectX and OpenGL technologies were supported . 4.3. Their versions were 11.0 and 4.3 , respectively .
• DVI ( максимальный формат изображения - 2560 x 1600) и 1 аналоговый — VGA (2048 х 1536) . The number of ports is 3. 2 digital DVI ( maximum image format is 2560 x 1600) and 1 analog - VGA (2048 x 1536) .

Graphics accelerator memory

In 2012, there was a gradual replacement of one type of RAM by another. вытеснялся из рынка GDDR5. More specifically, GDDR3 was forced out of the GDDR5 market . As a result, this model of the graphics accelerator could be completed with both the first type of RAM and the other. NVidia GeForce GT 640 — 2Gb. The minimum amount of RAM in this case was 1 GB, and the maximum RAM for NVidia GeForce GT 640 is 2Gb. The characteristics of the video buffer controller indicate that it was oriented to memory chips with operating frequencies of 1800 MHz. GDDR3. As a result, it was most optimal on such accelerators to use GDDR3. GDDR5 получить дополнительный прирост быстродействия было практически невозможно. But from using GDDR5 to get an additional increase in performance was almost impossible. The memory bus width of this graphics processor was 64 bits.

Thermal mode of the accelerator

At 49 W, there was a thermal package of the NVidia GeForce GT 640 graphics card. The characteristics of most similar graphics cards indicate that at this value of this parameter the cooling system can be passive. But this California company decided to reinsure and by default such accelerators were equipped with systems with an active heat sink (that is, with a cooler). On the one hand, this approach allowed practically in any situation to avoid overheating of the video accelerator, and on the other - added additional decibels to the overall noise level of the PC. ⁰ С. А вот минимальная мощность системы электроснабжения системного блока ограничивалась 300 Вт. The maximum allowable temperature for this accelerator was 95 ⁰ C. But the minimum power of the power supply system of the system unit was limited to 300 watts.

Competitors

The main competitors of the hero of this review are integrated in the CPU video adapters. Technical parameters are almost the same, as well as speed. Even the maximum number of them is identical to the NVidia GeForce GT 640 - 2 GB. The characteristics of the graphics processors themselves, they have a lot in what also coincide. The main advantage of built-in accelerators is that they are already included as part of the PC and they do not need to be purchased separately. But such a discrete graphics need to be purchased separately for an additional amount. Therefore, its acquisition is justified only if the system unit is repaired due to a malfunction of the existing video card in the shortest possible time and with the minimum possible costs.

The cost. Reviews

In a new state, such a computer accessory is already impossible to acquire: it itself has been withdrawn a long time ago, and warehouse stocks have been successfully sold. In the supported state, such an accelerator can be purchased at various trading platforms on the Internet at a price ranging from 3000 to 3500 rubles. GT 640 в особом исполнении с улучшенной системой охлаждения. The feedback of most owners of such a computer component indicates, first of all, that the same level of performance has modern integrated graphics subsystems and the NVidia GeForce GT 640. ASUS (the product characteristics under this brand always differed somewhat from the competitors) was released by GT 640 in a special version with an improved cooling system. GT 640-2GD3. This model GT 640-2GD3. As a result, such adapters can be overclocked and achieved due to this a certain gain in performance in relation to the modern integrated graphics. GT 640 и имеют схожую производительность . As for the rest, as it was mentioned before, the technical parameters of the embedded video cards duplicate the GT 640 and have similar performance .

Results

At the time of its release, a decent mid-range accelerator was the NVidia GeForce GT 640. Its characteristics were really relevant and allowed to run most of the existing toys at that time. Now this accelerator has gradually dropped into the segment of entry-level products and now it has to withstand integrated video subsystems. The latter have one important advantage: they are included in the PC initially and for them there is no need to pay extra.