AMD Radeon RX 7800 XT vs NVIDIA GeForce RTX 3080

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Radeon RX 7800 XT compared with GeForce RTX 3080

	AMDRadeon RX 7800 XT	NVIDIAGeForce RTX 3080
Overview
Released
Released	September 2023	September 2020
Performance
Chip maker
Chip maker	AMD	NVIDIA
Architecture
Architecture	RDNA 3	Ampere
Shader cores
Shader cores	3,840	8,704 or 8,960
Boost clock
Boost clock	2,430 MHz (better)	1,710 MHz
Architecture
Architecture	60 compute units, 96 ROPs, 240 texture units; game clock 2124 MHz; 28.1 billion transistors	GA102. NVIDIA reference specifications; the photo shows PNY's stock-clock 10 GB XLR8 Gaming REVEL EPIC-X RGB Triple Fan, whose cooler and dimensions differ from the Founders Edition.
Manufacturing process
Manufacturing process	–	Samsung 8 nm 8N NVIDIA custom process
Ray tracing
Ray tracing	60 second-generation Ray Accelerators	Second-generation RT Cores
AI cores
AI cores	120 AI Accelerators; 74.6 TOPS INT8	Third-generation Tensor Cores
Upscaling and frame generation
Upscaling and frame generation	AMD FSR, Radeon Super Resolution	NVIDIA DLSS upscaling; no DLSS Frame Generation
Base clock
Base clock	–	1.44 GHz (10 GB); 1.26 GHz (12 GB); both have 1.71 GHz boost
Cache
Cache	64 MB AMD Infinity Cache (second generation)	–
Memory
Video memory
Video memory	16 GB GDDR6	10 GB GDDR6X or 12 GB GDDR6X
Memory bus
Memory bus	256-bit	320-bit or 384-bit
Memory bandwidth
Memory bandwidth	624 GB/s	760 GB/s or 912 GB/s
Memory detail
Memory detail	GDDR6 at up to 19.5 Gbps; AMD quotes up to 2708 GB/s effective bandwidth with Infinity Cache	19 Gbps GDDR6X on both revisions; the 12 GB card uses a 384-bit bus and 912 GB/s bandwidth (Gainward stock-clock Phoenix specifications)
Connections and power
Board power
Board power	263 W	320 W or 350 W
Interface
Interface	–	PCIe 4.0
Display outputs
Display outputs	DisplayPort 2.1, HDMI 2.1	3 × DisplayPort 1.4a, 1 × HDMI 2.1; up to 4 displays; HDCP 2.3
Maximum resolution
Maximum resolution	–	7680 × 4320; HDMI supports 4K 120 Hz HDR or 8K 60 Hz HDR
Power connector
Power connector	2 × 8-pin	2 × PCIe 8-pin cables through the included adapter to 1 × 12-pin (10 GB Founders Edition); check the manufacturer for 12 GB partner cards
Recommended power supply
Recommended power supply	700 W	750 W for both revisions, based on NVIDIA's Intel Core i9-10900K test system
Slot width
Slot width	2.5-slot (reference card)	2-slot (10 GB Founders Edition); 12 GB partner cards vary
Size (reference card)
Size (reference card)	267 mm long, 2.5-slot (reference card)	285 × 112 mm, 2-slot (10 GB Founders Edition); no separate reference geometry verified for the 12 GB revision
Video encode and decode
Video encode and decode	H.264, HEVC and AV1 encode and decode	Seventh-generation NVENC, fifth-generation NVDEC; hardware AV1 decode, no AV1 encode