AMD Radeon RX 6800 XT vs NVIDIA GeForce RTX 3080 Ti

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Radeon RX 6800 XT compared with GeForce RTX 3080 Ti

	AMDRadeon RX 6800 XT	NVIDIAGeForce RTX 3080 Ti
Overview
Released
Released	November 2020	June 2021
Performance
Chip maker
Chip maker	AMD	NVIDIA
Architecture
Architecture	RDNA 2	Ampere
Shader cores
Shader cores	4,608	10,240
Boost clock
Boost clock	2,250 MHz (better)	1,670 MHz
Architecture
Architecture	AMD reference specification; 72 compute units and 26.8 billion transistors	NVIDIA reference specifications. The photo shows PNY's stock-clock XLR8 Gaming REVEL EPIC-X RGB Triple Fan; its cooler differs from the Founders Edition geometry below.
Manufacturing process
Manufacturing process	7 nm	–
Ray tracing
Ray tracing	72 Ray Accelerators; DirectX Raytracing support	Second-generation RT Cores
AI cores
AI cores	–	Third-generation Tensor Cores
Upscaling and frame generation
Upscaling and frame generation	AMD FidelityFX Super Resolution (FSR); AMD Radeon Super Resolution	NVIDIA DLSS upscaling; no DLSS Frame Generation
Base clock
Base clock	2015 MHz game frequency; up to 2250 MHz boost, which AMD defines for bursty workloads rather than sustained gaming	NVIDIA lists 1.37 GHz base and 1.67 GHz boost rounded to two decimal places; stock-clock PNY REVEL specifies 1365 MHz base and 1665 MHz boost
Cache
Cache	128 MB AMD Infinity Cache	–
Memory
Video memory
Video memory	16 GB GDDR6 (better)	12 GB GDDR6X
Memory bus
Memory bus	256-bit	384-bit (better)
Memory bandwidth
Memory bandwidth	512 GB/s	912 GB/s (better)
Memory detail
Memory detail	Up to 16 Gbps GDDR6; 512 GB/s physical memory bandwidth	19 Gbps GDDR6X; 912 GB/s bandwidth verified by PNY's stock-clock REVEL specification
Connections and power
Board power
Board power	300 W (better)	350 W
Interface
Interface	PCIe 4.0	PCIe 4.0
Display outputs
Display outputs	DisplayPort 1.4a, HDMI 2.1 with VRR and FRL, and USB-C (AMD reference)	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; DisplayPort supports 4K 240 Hz with DSC
Power connector
Power connector	2 × PCIe 8-pin	2 × PCIe 8-pin cables through the included adapter to 1 × 12-pin (Founders Edition)
Recommended power supply
Recommended power supply	750 W	750 W, based on NVIDIA's Intel Core i9-10900K test system
Slot width
Slot width	2.5-slot (AMD reference)	2-slot (Founders Edition)
Size (reference card)
Size (reference card)	267 mm long (AMD reference); no reference width or height verified	285 × 112 mm, 2-slot (Founders Edition)
Video encode and decode
Video encode and decode	Hardware AV1 decoding; H.264 and H.265/HEVC encode and decode	Seventh-generation NVENC and fifth-generation NVDEC; no hardware AV1 encoding