AMD Radeon RX 7800 XT vs AMD Radeon RX 7900 XTX

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Radeon RX 7800 XT compared with Radeon RX 7900 XTX

	AMDRadeon RX 7800 XT	AMDRadeon RX 7900 XTX
Overview
Released
Released	September 2023	December 2022
Performance
Chip maker
Chip maker	AMD	AMD
Architecture
Architecture	RDNA 3	RDNA 3
Shader cores
Shader cores	3,840	6,144
Boost clock
Boost clock	2,430 MHz	2,500 MHz (better)
Architecture
Architecture	60 compute units, 96 ROPs, 240 texture units; game clock 2124 MHz; 28.1 billion transistors	96 compute units, 192 ROPs, 384 texture units; game clock 2300 MHz; 58 billion transistors
Manufacturing process
Manufacturing process	–	Chiplet design; 5nm Graphics Compute Die (306 mm²) with 6nm Memory Cache Dies
Ray tracing
Ray tracing	60 second-generation Ray Accelerators	96 second-generation Ray Accelerators
AI cores
AI cores	120 AI Accelerators; 74.6 TOPS INT8	192 AI Accelerators; 123 TOPS INT8
Upscaling and frame generation
Upscaling and frame generation	AMD FSR, Radeon Super Resolution	AMD FSR, Radeon Super Resolution
Cache
Cache	64 MB AMD Infinity Cache (second generation)	96 MB AMD Infinity Cache (second generation)
Memory
Video memory
Video memory	16 GB GDDR6	24 GB GDDR6 (better)
Memory bus
Memory bus	256-bit	384-bit (better)
Memory bandwidth
Memory bandwidth	624 GB/s	960 GB/s (better)
Memory detail
Memory detail	GDDR6 at up to 19.5 Gbps; AMD quotes up to 2708 GB/s effective bandwidth with Infinity Cache	GDDR6 at up to 20 Gbps; AMD quotes up to 3500 GB/s effective bandwidth with Infinity Cache
Connections and power
Board power
Board power	263 W (better)	355 W
Display outputs
Display outputs	DisplayPort 2.1, HDMI 2.1	DisplayPort 2.1 (UHBR 13.5), HDMI 2.1a, USB Type-C
Maximum resolution
Maximum resolution	–	Up to 4K 480 Hz or 8K 165 Hz over DisplayPort 2.1
Power connector
Power connector	2 × 8-pin	2 × 8-pin
Recommended power supply
Recommended power supply	700 W	800 W
Slot width
Slot width	2.5-slot (reference card)	2.5-slot (reference card)
Size (reference card)
Size (reference card)	267 mm long, 2.5-slot (reference card)	287 mm long, 2.5-slot (reference card)
Video encode and decode
Video encode and decode	H.264, HEVC and AV1 encode and decode	H.264, HEVC and AV1 encode and decode