Review Sapphire PULSE RX 5700XT 8G GDDR6 – Specs |Test | Performance

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Review Sapphire PULSE RX 5700XT 8G GDDR6 – Specs |Test | Performance : With each release of video cards, we ask the gods of the hardware that please the design of the cooling system does not have a blower, they clearly do not listen to us and the GPU manufacturers launch their referential models with this controversial system, however we know that It’s a matter of time for partners to start developing their own versions

Sapphire in this Pulse model incorporates some technologies that differentiate it from its previous models, technologies that point to greater cooling efficiency, elements that improve the user experience such as Dual BIOS or backplate and robust electrical system to improve GPU support on board The video card

Architecture.

After AMD’s last attempt to maintain an important place in the gamer scene by squeezing its GCN architecture to the fullest, with its Vega and Vega II GPUs (7nm), these were not attractive enough in the eyes of consumers, both for their price , its performance and its consumption. Now comes a new GPU called NAVI, based on a new architecture called RDNA.

The step of using a 7nm process, with a completely new architecture, is that smaller chips can be produced, without losing performance or increasing consumption, which is why the die area could be reduced from 495mm2 of the Radeon Vega 64 , up to 251mm2 of these new GPUs.

Of all this performance gain, 60% corresponds to the increase in operating frequencies, 25% to the gain of using a 7nm process, and only 15% to improvements in design and consumption.

Like all new architecture, as they have done with Zen in the CPUs, AMD has planned the RDNA architecture for several years, and they are already planning their second version for next year, with the improved 7nm process (7nm +).

There are currently 400Millions of Radeon products in the world, now Radeon will be present in 5 business verticals, PCs, Mac (New Mac Pro), Consoles (XBOX “Scarlet” and PS5), Cloud (Google Stadia) and Mobile (thanks to a agreement with Samsung). All of these will be supported by Navi-based GPUs, in some of their variants.

As mentioned, Navi is the name of this family of GPUs, which has as highlights: 7nm manufacturing, use of 14Gbps GDDR6 memories, which grant up to 448GB / s of bandwidth, support for PCie 4.0 increasing the width of band available to the CPU, and finally the use of the new RDNA architecture, with improvements in efficiency and performance.

Among the new things that RDNA includes, we can highlight 3: New Computing unit, Multilevel cache hierarchy, and a new graphic pipeline more orderly and faster. The sum of these 3 characteristics will give RDNA-based GPUs a better performance when performing tasks, which will result in better performance in our games and applications.

NAVI: What’s new that incorporates

Let’s look at other features of these new GPUs.

Along with being based on a new architecture called RDNA, Navi GPUs will have a new and improved Multimedia Engine, in addition to a new Display Engine.

Navi 10 will own 40 Compute Units, with a total of 2560 Stream Processors and 80 scalar processing units. A better multilevel cache, and 64 pixel units (PPU), all this, to be able to handle the instructions better, and not have to wait many clock cycles, to be able to perform each action.

This new Display Engine, supports HDMI 2.0b and DisplayPort 1.4 HDR, capable of extracting 8K 60Hz video, or 4K 240Hz, all this without the need to use 2 cables. In this way, the use of cables on the desk is optimized, in addition to being able to better manage energy consumption.

The new Multimedia Engine improves the support of the current codecs, in addition to providing HDR / WCG support to the HEVC codec, along with supporting 8K 24FPS.

Finally, a summary of the new RDNA architecture: New computing units, Multilevel cache hierarchy, for low latency, bandwidth and low consumption, and finally a more orderly and efficient Pipeline, capable of providing better performance at high frequencies

Specs.

specsSapphire Pulse RX 5700 XTAMD Radeon RX 5700 XTAMD Radeon RX 5700AMD Radeon VIINVIDIA RTX 2080 TINVIDIA RTX 2070 SuperNVIDIA RTX 2060 Super
Fabrication process7 nm7 nm7 nm7 nm12 nm12 nm12 nm
GPUNavi 10Navi 10Navi 10Vega 20TU102TU104TU106
ROPs64646464886464
Texture Units160160144240272160136
Tensor Cores544320272
RT Cores684032
Shaders2560256023043840435225602176
Core clock1670 MHz1605 MHz1465 MHz1802 MHz1350 MHz1605 MHz1470 MHz
Boost Clock1925 MHz1755 MHz1625 MHz1545 MHz1770 MHz1650 MHz
Memory Frequency1750 MHz1750 MHz1750 MHz1000 MHz1750 MHz1750 MHz1750 MHz
Memory8 GB, GDDR6, 256-bit8 GB, GDDR6, 256-bit8 GB, GDDR6, 256-bit16 GB, HBM2, 4096-bit11 GB, GDDR6, 352-bit8 GB, GDDR6, 256-bit8 GB, GDDR6, 256-bit
Connectors1x 8-pin, 1x 6-pin1x 8-pin, 1x 6-pin1x 8-pin, 1x 6-pin2x 8-pin2x 8 pin1x 8 pin, 1x 6 pin1x 8-pin
TDP241W225W185W295W260 W215W175W
Price$ 399$ 349$ 699$ 1199$ 499$ 399

First look.

Sapphire Pulse RX 5700 XT

Introducing one of the first customized models in refrigeration for the Radeon RX 5700 XT, we see a robust model, with a clear difference in refrigeration that does not have any intention of saying “This is really refrigeration”.

To complement, on its back side we find a backplate, which thanks to spaces in this will give a small air flow in this area, in addition to the thermal contacts that this blackplate has.

With a fairly sober design and maintaining a low profile scheme, Sapphire enhances functionality rather than aesthetic appearance. With its two easy-to-clean fans, they give this model low noise and enough air flow to keep the card at a suitable temperature.

On the edge we can see how two large heatpipes cool with the opening of this area, delivering greater efficiency in how the cooling system dissipates the temperature generated in the GPU.

As seen in the reference model, a space for a BIOS switch is what would be present in this Sapphire model.

The video outputs already set aside the old DVI-D connector, leaving only 3x Display Port and 1x HDMI, we see how the latter ceases to be the protagonist of these models that point to a market sector of high refresh rate.

Adding aesthetic finishes, at the rear edge it offers air outlets both in the area where the frame covers the heatsink, as well as generating a space between the backplate and the heatsink itself.

Discovering the frame, we see the large heatsink that covers beyond the limits of the PCB, looking for as much space as possible to give dissipation efficiency.

With a well-achieved copper base, we see how they cross this 5 heatpipe.

Under the large heatsink, we continue to see more cooling components, a “block” heatsink that covers the memories and the VRMs that also connect in-between heatsinks with blades, are responsible for dissipating the most internal temperature.

An amazing work by Sapphire delivering a great termination as a functionality for this video card.

Test Platform

Testing platform
Processor– Intel Core I7 8086K
Motherboard– ASUS ROG Maximus X Apex
Memories– G. Skill TridentZ 3200MHz 2x8GB
Refrigeration– EK-XLC Predator 240
Graphics card– Sapphire Pulse RX 5700 XT
Power supply– Corsair RM1000x
Storage– SAMSUNG 960PRO 512GB M.2
Monitor– ASUS MG28UQ

  • Windows 10 Pro x64 operating system [Update 1903].
  • The tests were performed in an environment with a temperature of approximately 25 ° C.
  • The platform was used without a cabinet.
  • The drivers used for the Radeon: Adrenalin 19.8.1 WHQL graphics cards
  • The resolutions of the synthetic tests are the default ones for each of the benchmarks.
  • The real test resolutions are 1920 × 1080 and 3820 × 2160 with all the maximum available graphics in each game.

Synthetic tests

Real tests

Temperature and consumption.

In this section we will directly notice the difference of a model with referential cooling and a customized one. As we have said and you will also know about the disadvantages of a cooling system with blower, it is that not only noise plays a negative factor, but also the way in which the blower distributes the fresh air through the graphics card. This is why a cooling system with fans direct to temperature sensitive areas will make a big difference.

Overclocking.

Considering that the Sapphire Pulse RX 5700 XT brings a slight factory overclock on the GPU, it is able to offer even more overclock than the one it already brings. By adjusting the values ​​through Wattman within the Radeon suite, we increase the frequency of the 1434MHz that brings in the GPU clock to 1475MHz as extra OC and the Boost of 2070MHz to 2150 MHz, these values ​​without modifying extra voltages. With the previously mentioned configuration, we will measure the performance scale offered by this Navi sample.

Conclusion.

The models with customized cooling system have no doubt that they give other airs to the GPUs after comparing them with their referential versions, something that is more noticeable in the AMD Radeon models.

Particularly for this Sapphire model, great work is seen around the cooling system, both for passive and active components. The fans of this model deliver a low noise level without compromising their performance. Although not all the compliments are carried by the fans, but also by the passive cooling components, such as the backplate that contacts the VRM on its back side and also these heatsinks that go directly to the memories and VRM.

In aesthetics Sapphire has failed to find an attractive model within its lines, they tend to break the scheme of their models pointing to functionality beyond the visual, but leaves them out of what we usually see today, as what they are models with RGB, sober colors, and aggressive finishes. Although it is still a striking video card, it is felt that at this point Sapphire could take a look at what other manufacturers are doing at the moment, which is basically the result of what the final consumer asks.

For the AMD Radeon model, the RX 5700 XT has managed to reach a sector of the market where AMD has arrived with some problems before, Radeon VII was a model that did manage to reach the performance of a 2080 RTX, however with a cost and consumption That was not very attractive when comparing, this bumps in the launches that Radeon models have had over the medium-high range, have taken away a market where at the time AMD had no problem in addressing. We have seen how the Radeon RX 5700 XT with its Navia architecture could open a possibility, a base where you can improve and climb to new possibilities, which in RX Vega was a problem.

For both overclocking and consumption, this Sapphire model shows excellent results, the low temperature at which this model works gives an attractive margin for overcloking and along with this an improvement in consumption. We can see that we have a notable decrease in consumption, in relation to what was experienced with the referential model we tested, the driver has probably done his job in addition to Sapphire’s work.


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