AMD Radeon RX 7800 XT

The AMD Radeon RX 7800 XT is a mid-range desktop GPU and is primarily designed for gaming in 1440p. This makes the AMD Radeon RX 7800 XT the fourth-fastest model of the current Radeon generation and places it directly behind the AMD Radeon RX 7900 GRE. The graphics chip is manufactured using the 5 nm process at TSMC. The chiplet design is also used in the AMD Radeon RX 7800 XT, although there are only four MCDs here. Nevertheless, the AMD Radeon RX 7800 XT has 16 GB of VRAM, beating the Nvidia GeForce RTX 4070 in terms of technical data.

Features

RDNA 3 continues to serve as the basis for the Navi 32 graphics chip. The already established features such as SAM (Smart Access Memory) and the Infinity Cache are also available in the new mid-range model aka Radeon RX 7800 XT. Compared to the AMD Radeon RX 6800 XT the ray tracing part has been revised and AI support has been implemented on the hardware side. The media engine has been updated and videos can be decoded/encoded with a resolution of up to 8K. The modern DisplayPort connection is also available on the AMD Radeon RX 7800 XT, as version 2.1 is currently only available from AMD. AMD's answer to DLSS is FSR 2.0 and offers a significant increase in performance in games with the upscaling option. With FSR 3, there will be another feature in the near future which, like DLSS 3.0, promises even better frame rates thanks to frame generation.

Performance

The performance of the AMD Radeon RX 7800 XT in games without ray tracing is well ahead of an Nvidia GeForce RTX 4070. The Nvidia GeForce RTX 4070 Ti is out of reach for the AMD Radeon RX 7800 XT. In the in-house duel, the performance of the AMD Radeon RX 7800 XT can be compared with an AMD Radeon RX 6900 XT can be compared.

Power consumption

The power consumption of the AMD Radeon RX 7800 XT is estimated by the manufacturer at 263 watts (TBP) and is therefore significantly more efficient than an AMD Radeon RX 6900 XT (300 watts). Compared to the Nvidia GeForce RTX 4070 the AMD Radeon RX 7800 XT requires 63 watts more. Also an AMD Radeon RX 7900 GRE is also more economical at 260 watts.

Radeon RX 7000 Series Radeon RX 7900 XTX 6144 @ 2.27 GHz 384 Bit @ 20000 MHz Radeon RX 7900 XT 5376 @ 2 GHz 320 Bit @ 20000 MHz Radeon RX 7900 GRE 5120 @ 2.25 GHz 256 Bit @ 18000 MHz Radeon RX 7800 XT 3840 @ 2.43 GHz 256 Bit @ 19500 MHz Radeon RX 7700 XT 3456 @ 1.7 - 2.54 GHz 192 Bit @ 18000 MHz
Codename	Navi 32
Architecture	RDNA 3
Pipelines	3840 - unified
TMUs	240
ROPs	96
Raytracing Cores	60
Tensor / AI Cores	120
Core Speed	2430 (Boost) MHz
Theoretical Performance	74.65 TFLOPS FP16, 37.32 TFLOPS FP32
Cache	L2: 4 MB, L3: 64 MB
Memory Speed	19500 effective = 2425 MHz
Memory Bus Width	256 Bit
Memory Type	GDDR6
Max. Amount of Memory	16 GB
Shared Memory	no
Memory Bandwidth	620.8 GB/s
API	DirectX 12 Ultimate (12_2), Shader 6.7, OpenGL 4.6, OpenCL 2.2, Vulkan 1.3
Power Consumption	263 Watt
Die Size	346 mm²
technology	5 nm
PCIe	4.0 x16
Displays	4 Displays (max.), HDMI 2.1a, DisplayPort 2.1 UHBR13.5
Date of Announcement	25.08.2023
Link to Manufacturer Page	www.amd.com
Predecessor	Radeon RX 6800 XT

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