AMD Radeon RX 6600 vs Intel Arc B580

Every spec side by side, from each maker's published figures.

Only show differences

Better figure, where one is clearly better

Share comparison

Radeon RX 6600 compared with Arc B580

	AMDRadeon RX 6600	IntelArc B580
Overview
Released
Released	October 2021	December 2024
Performance
Chip maker
Chip maker	AMD	Intel
Architecture
Architecture	RDNA 2	Xe2 (Battlemage)
Shader cores
Shader cores	1,792	2,560
Boost clock
Boost clock	2,491 MHz	–
Architecture
Architecture	AMD GPU specification baseline with 28 compute units, 64 ROPs and 112 texture units. Photo shows MSI's stock-clock MECH 2X 8G partner card.	20 Xe-cores in 5 render slices; 160 Xe Vector Engines; Intel lists a 2670 MHz graphics clock
Manufacturing process
Manufacturing process	–	TSMC N5
Ray tracing
Ray tracing	28 ray accelerators	20 second-generation ray tracing units
AI cores
AI cores	–	160 Intel XMX engines; 233 TOPS INT8
Upscaling and frame generation
Upscaling and frame generation	AMD FidelityFX Super Resolution	XeSS 2 with XeSS Super Resolution, XeSS Frame Generation and Xe Low Latency
Base clock
Base clock	AMD publishes a 2,044 MHz game clock; the 2,491 MHz boost is the maximum frequency for burst workloads	–
Cache
Cache	32 MB Infinity Cache	–
Memory
Video memory
Video memory	8 GB GDDR6	12 GB GDDR6 (better)
Memory bus
Memory bus	128-bit	192-bit (better)
Memory bandwidth
Memory bandwidth	224 GB/s	456 GB/s (better)
Memory detail
Memory detail	14 Gbps GDDR6; 224 GB/s bandwidth	GDDR6 at 19 Gbps
Connections and power
Board power
Board power	132 W (better)	190 W
Interface
Interface	PCIe 4.0	PCIe 4.0 x8
Display outputs
Display outputs	Pictured MSI MECH 2X has 3 × DisplayPort 1.4 and 1 × HDMI 2.1; AMD specifies DisplayPort 1.4a and HDMI 2.1 with variable refresh rate and FRL	HDMI 2.1, DisplayPort 2.1 up to UHBR 13.5, DisplayPort 2.1 up to UHBR 10; up to 4 displays
Maximum resolution
Maximum resolution	7680 × 4320 and up to four displays on MSI's specification	7680 × 4320 at 120 Hz over HDMI, 7680 × 4320 at 60 Hz over DisplayPort
Power connector
Power connector	1 × 8-pin	1 × 8-pin (Limited Edition)
Recommended power supply
Recommended power supply	AMD specifies 450 W; MSI recommends 500 W for its pictured MECH 2X. Requirements depend on the rest of the system.	600 W
Slot width
Slot width	Partner card designs vary; MSI MECH 2X is 46 mm thick	2-slot (Limited Edition)
Size (reference card)
Size (reference card)	No retail AMD reference card; pictured MSI MECH 2X is 235 × 125 × 46 mm and 710 g	272 × 115 mm, 779 g (Limited Edition)
Video encode and decode
Video encode and decode	AMD publishes AV1 decoding; MSI confirms PCIe 4.0 x8	2 multi-format codec engines; H.264, HEVC and AV1 encode and decode; HDR10, HDR10+ Gaming and Dolby Vision