PowerColor Radeon RX 7800 XT

Name: PowerColor Radeon RX 7800 XT
Brand: PowerColor
SKU: 92779

Manufacturer: PowerColor

The PowerColor Radeon RX 7800 XT is a graphics card based on AMD's RDNA 3.0 architecture, fabricated on a 5 nm process with 28,100 million transistors. It operates with a base GPU clock of 1295 MHz and a boost frequency of 2430 MHz, while its 16GB of GDDR6 VRAM runs across a 256-bit memory bus, yielding a maximum memory bandwidth of 624.1 GB/s.

On the feature side, the card supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 2.2, along with ray tracing and AMD SAM. Its 3840 shading units deliver 37.32 TFLOPS of floating-point performance, complemented by a texture rate of 583.2 GTexels/s and 96 render output units. Connectivity includes one HDMI 2.1 port and three DisplayPort outputs for a total of up to four simultaneous displays, and the card has a rated thermal design power of 263W with physical dimensions of 274 mm by 125 mm.

Pros

16GB of GDDR6 VRAM across a 256-bit bus provides substantial frame buffer headroom for demanding workloads
Maximum memory bandwidth of 624.1 GB/s enables fast data throughput between the GPU and its memory pool
Supports ray tracing, DirectX 12 Ultimate, and stereoscopic 3D, covering a wide range of modern rendering capabilities
ECC memory support adds data integrity protection useful for compute-oriented tasks
AMD SAM support allows the CPU to access the full GPU memory pool, which can improve rendering throughput
Four simultaneous display outputs via one HDMI 2.1 and three DisplayPort connections offer flexible multi-monitor configurations

Cons

A 263W TDP results in notable power draw and may require a capable power supply
No DLSS or XeSS support limits upscaling options to AMD's own ecosystem
Lacks USB-C and DVI outputs, which may not suit users with older monitors or specific peripheral needs
No water cooling option is available, relying solely on air cooling for thermal management
No RGB lighting for users who prefer visual customization in their build

Who is this for?

This card is well-suited to users who work with demanding rendering and compute workloads, thanks to its 16GB GDDR6 VRAM, ECC memory support, and Double Precision Floating Point capability. Content creators and developers running GPU-accelerated applications will benefit from the 624.1 GB/s memory bandwidth and OpenCL 2.2 support. It also serves users who need multi-monitor setups, as the combination of one HDMI 2.1 and three DisplayPort outputs allows up to four displays to run simultaneously.

Who is this NOT for?

Users looking for AI-based upscaling options beyond AMD's ecosystem will find this card limiting, as it does not support DLSS or XeSS. Its 263W TDP makes it a poor fit for compact or low-power builds where thermal and power constraints are tight, particularly since no water cooling option is available. Those with older display hardware requiring DVI connectivity or needing USB-C video output will also find the port selection inadequate for their setup.

Performance:

GPU clock speed	1295 MHz
GPU turbo	2430 MHz
pixel rate	233.3 GPixel/s
floating-point performance	37.32 TFLOPS
texture rate	583.2 GTexels/s
GPU memory speed	2438 MHz
shading units	3840
texture mapping units (TMUs)	240
render output units (ROPs)	96
Has Double Precision Floating Point (DPFP)	✓

The PowerColor Radeon RX 7800 XT runs a base GPU clock of 1295 MHz with a boost frequency reaching 2430 MHz, while GPU memory operates at 2438 MHz. Its 3840 shading units and 240 texture mapping units combine to deliver a texture rate of 583.2 GTexels/s and a pixel rate of 233.3 GPixel/s, with 37.32 TFLOPS of floating-point performance underpinning its compute throughput. Rounding out the pipeline are 96 render output units, and the card also supports Double Precision Floating Point (DPFP), making it capable of handling workloads that require 64-bit precision.

Memory:

effective memory speed	19500 MHz
maximum memory bandwidth	624.1 GB/s
VRAM	16GB
GDDR version	GDDR6
memory bus width	256-bit
Supports ECC memory	✓

The card is equipped with 16GB of GDDR6 VRAM running across a 256-bit memory bus, with an effective memory speed of 19,500 MHz that translates into a maximum memory bandwidth of 624.1 GB/s. ECC memory support is also included, adding a layer of data integrity for workloads where memory accuracy is a concern.

Features:

DirectX version	DirectX 12 Ultimate
OpenGL version	4.6
OpenCL version	2.2
Supports multi-display technology	✓
supports ray tracing	✓
Supports 3D	✓
supports DLSS	✕
has XeSS (XMX)	✕
AMD SAM / Intel Resizable BAR	AMD SAM
has LHR	✕
has RGB lighting	✕
supported displays	4

The PowerColor Radeon RX 7800 XT supports DirectX 12 Ultimate, OpenGL 4.6, and OpenCL 2.2, covering a broad range of graphics and compute workloads. Ray tracing, stereoscopic 3D, and multi-display technology are all supported, with the card capable of driving up to four displays simultaneously. AMD SAM is included to help improve data throughput between the CPU and GPU. The card does not support DLSS or XeSS (XMX), has no LHR restrictions, and features no RGB lighting.

Ports:

has an HDMI output	✓
HDMI ports	1
HDMI version	HDMI 2.1
DisplayPort outputs	3
USB-C ports	0
DVI outputs	0
mini DisplayPort outputs	0

The card's output configuration consists of one HDMI 2.1 port and three DisplayPort outputs, providing a total of four display connections. There are no DVI, mini DisplayPort, or USB-C outputs present on this card.

General info:

GPU architecture	RDNA 3.0
Thermal Design Power (TDP)	263W
PCI Express (PCIe) version	4
semiconductor size	5 nm
number of transistors	28100 million
Has air-water cooling	✕
width	274 mm
height	125 mm

The PowerColor Radeon RX 7800 XT is built on AMD's RDNA 3.0 architecture, using a 5 nm manufacturing process that integrates 28,100 million transistors. It connects via PCIe 4 and carries a thermal design power of 263W, with cooling handled exclusively by air — there is no water cooling option. Physically, the card measures 274 mm in width and 125 mm in height.

Final Verdict

The PowerColor Radeon RX 7800 XT presents a well-rounded specification sheet for users who need a capable graphics card with serious memory resources. Its 16GB GDDR6 VRAM paired with 624.1 GB/s of memory bandwidth makes it a credible option for content creators, multi-display users, and those running GPU-accelerated compute tasks that benefit from ECC support and DPFP. The card's 263W TDP and air-only cooling demand a thoughtfully configured system, and the absence of DLSS and XeSS narrows its upscaling flexibility. Overall, the RX 7800 XT is a technically solid card for users whose workflows align with its strengths, provided their system and display ecosystem are compatible with what it offers.