up
en ru ua
menu



logo minifile

::>Graphics cards > 2014 > 05 > ASUS R7265-DC2-2GD5

Print version
Republish review

25-05-2014


rss

Graphics card ASUS R7265-DC2-2GD5 base on AMD Radeon R7 265: review and testing

In February 2014 a new graphics card AMD Radeon R7 265 of family AMD Volcanic Islands was officially released. It is intended to take place between the AMD Radeon R7 260X and AMD Radeon R9 270 and compete for the attention of buyers with NVIDIA GeForce GTX 750 Ti. Note that the recommended price (and competitor of NVIDIA company) is 150 U.S. dollars. 

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

In fact, AMD Radeon R7 265 is well-known AMD Radeon HD 7850 with overclocked to 925 MHz graphics core, and increased level of TDP (from 130 to 150 W). Also the new product can boast with the support of API AMD Mantle.

For greater clarity, we want to compare the actual specifications of AMD graphics cards:


AMD Radeon R7 265

AMD Radeon R7 260Х

AMD Radeon R7 260

AMD Radeon R7 250

Codename

Curacao

Bonaire XTX

Bonaire PRO

Oland XT

Q-ty of thread CPUs

1024

896

768

384

Texture blocks

64

56

48

24

Rasterization blocks (ROP)

32

16

16

8

Graphics processor frequency, MHz

до 925

1100

1000

1050

Type and frequency of video memory, MHz

GDDR5
1400

GDDR5
1625

GDDR5
1500

GDDR3 / GDDR5

900 / 1125

Video memory interface, bit

256

128

128

128

Separately note that the base frequency of the graphics core is 900 MHz, and it can be dynamically accelerated to 925 MHz in mode AMD PowerTune Boost.

And now let's move on to the review of graphics card ASUS Radeon R7 265 DirectCU II.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

The specs:

Model

ASUS Radeon R7 265 DirectCU II

(ASUS R7265-DC2-2GD5)

Graphics core

AMD Radeon R7 265 (Curacao)

Quantity of shader processors

1024

Technologies and API support

DirectX 11.2, OpenGL 4.3, AMD Mantle, AMD Eyefinity, AMD App Acceleration, AMD HD3D, AMD CrossFireX, AMD PowerPlay, AMD PowerTune, AMD ZeroCore

Basic/dynamic frequency of graphics processor, MHz

900 / 925

Memory frequency (effective), MHz

1400 (5600)

Memory capacity, GB

2

Memory type

GDDR5

Memory bus, bit

256

Carrying capacity of the memory, GB/s

179,2

Bus type

PCI Express 3.0 x16

Max resolution

Digital – up to 4096 x 2160

Analog – up to 2048 x 1536

Screening  interfaces

1 х DVI-I

1 х DVI-D

1 х HDMI

1 х DisplayPort

HDCP support and HD-video decoding

Yes

Min PSU capacity, W

500

Additional PCIe power sockets

1 x 6-pin

Dimensions taken from official website (according measurements in own test lab) , mm

233,6 х 124,4 (240 х 127)

Drivers

Drivers can be downloaded here: ASUS or producer website GPU

Producer website

ASUS

Tested modification AMD Radeon R7 265 differs from the standard version due to the availability of original cooling system ASUS DirectCU II and quality circuitry. As for the printed circuit board and power supply subsystem, in this case AMD did not create the "reference" sample and allowed the partners to use their own experience in this field.

Packaging and content 

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

Graphics card ASUS R7265-DC2-2GD5 is shipped in the traditional for company ASUS cardboard box decorated with quality printing in a corporate style. In addition to the manufacturer and model, on the front side is the reference about the volume and type of video memory, as well as the presence of the supplied utility GPU Tweak. The main advantages are: a proprietary cooling system DirectCU II and improved circuitry made in accordance with the concept of Super Alloy Power. It includes:

  • solid capacitors with increased service life to 50,000 hours and increased endurance at high temperatures up to 20%;
  • chokes with ferrite core.

The above-described advantages make 15% increase in performance, reduced the temperature of power cells (on 35°C), and 2.5 increase in the service life of the graphic adapter.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

The reverse side of the box traditionally reserved for the more detailed description of the benefits listed on the front side. Also here is a schematic representation of the interface panel.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

List of system requirements for the computer is located on one side of the box. Based on the recommendations, the power supply unit must have a capacity at least 500 W and provide at least 24 A on +12 V line. As for the power connector, the model ASUS Radeon R7 265 DirectCU II requires the connection of one 6-pin cable PCIe.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

In addition to the standard documentation and CD with software, we found a DVI to D-Sub adapter and bridge AMD CrossFireX, that can be considered a great set.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

To output images the new product has a reference set of interfaces:

  • 1 х DVI-I;
  • 1 х DVI-D;
  • 1 х HDMI;
  • 1 х DisplayPort.

The following resolutions are supported:

  • Digital – up to 4096 x 2160
  • Analog – up to 2048 x 1536

Design and circuitry

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

The product is made on a relatively compact black PCB in with a matte cover. As you can see, the main principles of the location of key elements are pretty standard: the graphics core slightly shifted from the center of the PCB and surrounded by memory chips, while elements of the power subsystem are located on both side.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

The power supply of tested graphics card is performed via octa-core scheme (six phases for the GPU and one for the memory chips and PLL). Circuitry is collected in accordance with the concept of Super Alloy Power and includes only high-quality components: solid capacitors and inductors with ferrite core which improves the stability and reliability of the graphics adapter and prolongs its service life.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

The power subsystem of graphics core implemented on a digital PWM controller DIGI+VRM ASP1215AH details of which, unfortunately is no widely available.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

In addition to slot PCI Express 3.0 x16, power feeding of adapter ASUS R7265-DC2-2GD5 is provided through one additional connector on the right side of the graphics card. In accordance with the recommendations of AMD 6-pin option is used.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

To implement the AMD CrossFireX technology on ASUS R7265-DC2-2GD5 one connector for the corresponding bridge is used. This bridge allows to combine two video accelerator for joint calculation of graphical effects.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

The reverse side of the PCB is notable by the mounting screws of the cooling system, one of which is covered by a warranty sticker.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

The base of the product is the graphics chip AMD Curacao produced according to 28 nm process. It consists of 1024 universal shader pipelines, 32 rasterization units and 64 texture units. Since ASUS Radeon R7 265 DirectCU II comes with a reference frequency formula, the graphics core can be dynamically accelerated to the recommended 925 MHz.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

Total memory volume (2 GB) is collected using 8 ELPIDA W2032BBBG-6A-F chips with capacity 256MB each which run on the recommended by AMD company frequency 1400 MHz (effective value is 5600 MHz). Data exchange between the graphics core and memory is realized via 256-bit bus which is capable of information passing to 179.2 GB per second.

Cooling system

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

Accelerator with installed cooling system DirectCU II occupies two expansion slots and has a total length of 240 mm (according to measuring in our lab).

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

The cooler consists of a relatively small radiator, which has 37 aluminum plates and two 74 mm fans attached to the plastic case that covers the entire structure above.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

For a uniform distribution of heat over the entire area of the radiator two copper heat pipes with diameter 8 mm are used. Note that the fins and the heat pipes are coated with a layer of nickel which is designed to reduce drop of efficiency of cooling system in the operation caused by the metal oxidation. A small layer of thermal paste is applied.

As you can see, the main cooling system using a special thermal interface contacts directly with two of the eight memory chips, while the other six and power elements of stabilization don’t have additional cooling.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

Heat pipes are tightly placed on the radiator fins without the usage of the solder.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

In automatic control fan speed at maximum load the graphics core was heated up to 69 degrees, and cooler operated with 56% of its maximum capacity. The noise level in this mode can be described as subjectively quiet.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)

After the forced increase of fan speed to the maximum level the GPU temperature dropped to 62 degrees. Generated noise can be described as “below average, comfortable for extended use”. We remind that such similar operation in everyday use is unlikely because the speed of the blades was increased to the maximum level of force solely to measure “margin of safety”.

ASUS Radeon R7 265 DirectCU II (R7265-DC2-2GD5)


Социальные комментарии Cackle
Site Search
facebook vk YouTube
google+ twitter rss
top10

vote

Голосование