Sapphire Radeon RX 7800 XT Nitro+ Review - Fantastic Overclocking 45

Sapphire Radeon RX 7800 XT Nitro+ Review - Fantastic Overclocking

Circuit Board Analysis »

Packaging

Package Front
Package Back


The Card

Graphics Card Front
Graphics Card Back
Graphics Card Front Angled

For their RDNA 3 Radeon RX 7000 Series of graphics cards, Sapphire has come up with a completely new design. The main color is a matte gray that looks stunning. I love the looks of the main cooler, it's almost like it came right out of Apple's design labs. The metal backplate is a bit more busy, with various cutouts, logos and labels.

Graphics Card Dimensions

Dimensions of the card are 32.0 x 13.5 cm, and it weighs 1583 g.

Graphics Card Height
Graphics Card Back Angled

Installation requires three slots in your system. The card's width is 62 mm.

Monitor Outputs, Display Connectors

Display connectivity includes two standard DisplayPort 2.1 ports (RDNA 2 had 1.4a) and two HDMI 2.1a (same as RDNA 2).

AMD has upgraded their encode/decode setup. It now comes with two independent hardware units that can encode and decode two streams of video in parallel, or one stream at double the FPS rate. There's support for VP9, H.264, H.265 and AV1 decode, and encoding is supported for H.264, H.265 and AV1.

Graphics Card Power Plugs

All AMD Radeon RX 7800 XT and RX 7700 XT designs use dual 8-pin PCIe power connectors.


This dual BIOS switch lets you toggle between the default BIOS and a "quiet" BIOS, which runs the fans at a more relaxed fan curve.

With this generation, Sapphire is including their software BIOS switch feature, too. The BIOS switch has three positions: left-most = default BIOS, middle = secondary BIOS, right = software-controlled. In Sapphire's TRIXX software you can now toggle the BIOS selection, without having to open your case or crawl under your desk.


Near the back of the card, Sapphire has placed an ARGB output that lets you sync the rest of the system to the RGB effects of your graphics card. Here you also get a 4-pin header for a case fan that runs synced with the graphics card fan speed. The "Fan In" label is actually a bit misleading, I would have called it "Fan Out," or "External Fan," or similar.

Teardown

Graphics Card Cooler Front
Graphics Card Cooler Back

Sapphire lets you remove the fan assembly pretty easily, which means it can be cleaned without disturbing the thermal paste on the GPU, or you can easily replace it, should a fan break at some point.


The actual heatsink is pretty big and combines a copper base with five heatpipes. The main cooler also provides cooling for the VRM circuitry and memory chips.


Once the main heatsink is removed, a metal reinforcement brace becomes visible, which safeguards against warping and sagging.


The backplate is made of metal and protects the card against damage during installation and handling.
Next Page »Circuit Board Analysis
View as single page
Oct 31st, 2024 06:12 EDT change timezone

New Forum Posts

Popular Reviews

Controversial News Posts