AMD Radeon RX 7800 XT MBA 16 GB
With a length of 27 cm from the outer edge of the slot bezel to the opposite end of the cooler cover, the card is relatively short. The height of the inserted card also turns out normal with 10.5 cm from the upper edge of the PCIe slot to the upper edge of the cooler cover.
It is 4.8 cm thick as a 2.5 slot design and requires an additional 0.5 cm at the back for the backplate. It has a single BIOS, even if the reference board would have allowed a dual BIOS.
On the top side, we primarily see the two 8-pin sockets for the external power supply. The red rally stripe had to be, but RGB isn’t even available at extra cost. If we look at the slot panel (bracket), we see a tidy variety in full width. With the three DisplayPort 2.1 ports (up to 8K 165 Hz or 4K at 480 Hz) and one HDMI 2.1 jack, you’re fully equipped. A USB Type C port (hello VR community!) is unfortunately no longer available.
XFX RX 7800 XT MERC 319 16 GB
The second new card is the XFX RX 7800XT Merc(ury) 319 from XFX’s Speedster line. Even though the card has a dual BIOS, both settings are identical. XFX sells this model as an OC card and we can already guess where the power limit might be approximately. Far above that of the MBA card, but of course I will question the added value as well. But the card does serve the crowbar category, so someone has to do it.
At 1450 grams, it’s 342 grams heavier than the MBA card, but at 34.2 cm, it’s also quite long. It is also 12.5 cm high and a full 5 cm thick. In addition, there is about 0.5 cm for the backplate.
The MBA card seemed a bit smaller, more delicate and more unagitated than the much chunkier XFX card, even though the proportions are of course correct. However, the XTX looks more like a radiant plus-size model in direct comparison, now you have the graceful, dark side of the front graphics in your eyes (and hands). Radiant isn’t right either, because RGB doesn’t exist. On the upper side, we primarily see the two 8-pin sockets for the external power supply. XFX uses three fans, with the two outer fans having a rotor blade diameter of 9.8 cm, the inner fan is a bit smaller with its 8.8 cm. All three fans have 11 rotor blades. With the three familiar DisplayPort 2.1 ports and an HDMI 2.1 jack on the slot bezel, it’s business as usual.
XFX RX 7700 XT QICK 319 12 GB
The third new card is the XFX RX 7700XT Q(u)ick(silver) 319 from XFX’s Speedster line, so it’s the smaller sister to the RX 7800XT Merc. Although the card also has a dual BIOS, both settings are again identical. XFX still sells this model as an OC card and it will be interesting to see how it will do against the fourth card.
At 1106 grams, it’s just under 100 grams heavier than the MBA card, but it’s also quite long at 34.2 cm. It is also 12.5 cm high and 4.5 cm thick. In addition, there is about 0.5 cm for the backplate.
The card is a bit more delicate than its bigger sister, but still a hulk, even if the proportions are right. There is no RGB, and the plastic body without ornamentation looks and feels much better. On the upper side, there are again the two 8-pin sockets for the external power supply and with the three known DisplayPort 2.1 connectors and an HDMI 2.1 socket, everything is as usual. The card relies on the same 3-fan design as the Merc 319.
Sapphire RX 7700 XT Pulse 12 GB
The second RX 7700XT is the exactly 1 kilogram heavy Sapphire RX 7700XT Pulse 12 GB and this already looks completely different. It serves a different target group and uses a somewhat more timeless, less aggressive design language. There is also no dual BIOS, because Sapphire is more oriented towards the UVP with the Pulse. This naturally requires certain compromises, but one could certainly live with them if it has to be the smaller Navi32 card.
With a length of 28 cm and a height of 12 cm, it is only slightly larger than the MBA-cate of the RX 7800XT, while the thickness is almost identical with 4.8 cm 0.3 cm for the backplate.
Sapphire relies on two fans, each with a diameter of 9.5 cm of the total 9 rotor blades. On the top side there are again the two 8-pin sockets for the external power supply and at the back of the slot bracket remains with the three known DisplayPort 2.1 connectors and a HDMI 2.1 socket everything is as usual.
- 1 - Introduction and overview of Navi32
- 2 - The cards from AMD, Sapphire and XFX at a glance
- 3 - Test system and the igor'sLAB MIFCOM-PC
- 4 - Teardown: PCB and components
- 5 - Teardown: Cooler and surprising material analysis
- 6 - Gaming-Performance in Full-HD (1920 x 1080)
- 7 - Detailed Metrics for Full-HD (1920 x 1080)
- 8 - Gaming-Performance in WQHD (2560 x 1440)
- 9 - Detailed Metrics for WQHD (2560 x 1440)
- 10 - Details: Power consumption and load balancing
- 11 - Load peaks, capping and PSU recommendation
- 12 - Temperatures, clock rates and infrared analysis
- 13 - Fan curves and operating noise
- 14 - Summary and conclusion
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