Sapphire Pulse Radeon RX 7900 XT 20GB: features, specs and who it suits

The Sapphire Pulse Radeon RX 7900 XT, model 11323-02-20G, is a high-end graphics card based on AMD's RDNA 3 architecture. It carries 20GB of GDDR6 memory and is aimed at gaming at high resolutions and demanding creative work.

Clock speeds

Sapphire lists a game clock of up to 2075 MHz and a boost clock of up to 2450 MHz. The game clock is the typical speed under gaming loads, while the boost clock is the highest the card can reach when power and temperature allow. Actual speeds vary with the case, cooling and workload.

What 20GB on a 320-bit bus means

The card has 20GB of GDDR6 on a 320-bit bus, with a memory clock of 20 Gbps effective. Memory capacity affects how large the textures and scenes a card can hold at higher resolutions, and the wide bus and fast memory help move data quickly. In general, more memory gives more room for high-resolution textures and large creative projects.

RDNA 3

RDNA 3 is the AMD graphics architecture behind this card. The listing gives the name and little more, so check AMD's documentation for the exact features it supports and the software drivers available for your system.

Outputs

There are four video outputs: two HDMI and two DisplayPort. That allows several monitors or a monitor and a TV. Check the HDMI and DisplayPort versions in the product manual to match your displays.

Size and slots

This is a large card. The listing gives a 2.7-slot, ATX form factor, at 313 x 133.75 x 52.67 mm (about 12.3 x 5.3 x 2.1 inches). It occupies nearly three expansion slots, so the case needs both the length and the clear space. The shipping dimensions and the 2.2 lb weight are listed as well.

Power and cooling in practice

Cards of this class draw a lot of power and give off a lot of heat. The listing doesn't state the board power or the required connectors, so read Sapphire's and AMD's documentation before choosing a power supply. A case with good front-to-back airflow typically keeps clocks steadier, and a card this thick leaves little gap to a neighbouring expansion card, so plan the rest of the build around it.

Who it suits

It suits enthusiasts building a gaming PC for high resolutions and high refresh rates, and creators working with large scenes or textures. It is more graphics power than office or light-use PCs require.

What to check before you buy

• Case clearance: confirm length (313 mm) and the thickness of about 2.7 slots.
• Power supply: check the wattage and connectors AMD and Sapphire recommend.
• Motherboard slot: make sure there is a free PCIe x16 slot with adequate spacing.
• Monitor inputs: match your display to HDMI and DisplayPort.
• Cooling: make sure the case has good airflow.
• Drivers: check support for your operating system.

The short version

• Sapphire Pulse Radeon RX 7900 XT, model 11323-02-20G, on AMD RDNA 3.
• 20GB GDDR6, 320-bit, 20 Gbps effective memory clock.
• Game clock up to 2075 MHz and boost clock up to 2450 MHz.
• Two HDMI and two DisplayPort outputs.
• 2.7-slot, 313 mm card for ATX cases.

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