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Intel Arc B570vsIntel Arc B580: Which GPU Wins?

These graphics cards share the Xe2 architecture, PCIe 4.0 interfaces, and dual video encoders. Choosing between them comes down to a trade-off between price, power consumption, and raw graphics horsepower.

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Intro

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Best for

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Biggest differences

  • Board power

    Intel Arc B570 leads

    −21%

    lower is better

    • Intel Arc B570150 W
    • Intel Arc B580190 W

  • Video memory

    Intel Arc B580 leads

    +20%

    higher is better

    • Intel Arc B57010 GB
    • Intel Arc B58012 GB

  • Memory bus width

    Intel Arc B580 leads

    +20%

    higher is better

    • Intel Arc B570160 bit
    • Intel Arc B580192 bit

  • Memory bandwidth

    Intel Arc B580 leads

    +20%

    higher is better

    • Intel Arc B570380 GB/s
    • Intel Arc B580456 GB/s

Where each one wins

  • Intel Arc B570

    • Launch price
    • Board power

  • Intel Arc B580

    • Shader cores
    • Boost clock
    • Video memory
    • Memory bus width
    • Memory bandwidth

What both have

  • ArchitectureXe2
  • Memory typeGddr6
  • Memory speed19 Gbps
  • Power connectors8-pin
  • PCIe version4.0
  • PCIe lanes8 lanes
  • HDMI version2.1
  • DisplayPort version2.1
  • HDMI outputs1 ports
  • DisplayPort outputs3 ports
  • Max displays4 displays
  • Hardware encodeH.264, HEVC, AV1
  • Video encoders2 encoders

Every spec

Red marks the better value in each row.

SpecIntel Arc B570Intel Arc B580
Overview

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Overview specs

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Release date2025-0112024-12
Launch price219 USD2249 USD
Graphics chip

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Graphics chip specs

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ArchitectureXe2Xe2
Shader cores2,304 cores32,560 cores
Boost clock2,500 MHz42,670 MHz
Base clockNot publishedNot published
FP32 computeNot publishedNot published
Memory

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Memory specs

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Video memory10 GB12 GB
Memory typeGddr6Gddr6
Memory bus width160 bit192 bit
Memory bandwidth380 GB/s456 GB/s
Memory speed19 Gbps19 Gbps
Last-level cacheNot published18 MB
Power

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Power specs

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Board power150 W190 W
Recommended PSUNot published600 W
Power connectors8-pin58-pin
Interface

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Interface specs

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PCIe version4.04.0
PCIe lanes8 lanes68 lanes
Display outputs

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Display outputs specs

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HDMI version2.12.1
DisplayPort version2.172.18
HDMI outputs1 ports91 ports
DisplayPort outputs3 ports3 ports
Max displays4 displays4 displays
Video engine

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Video engine specs

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Hardware encodeH.264, HEVC, AV110H.264, HEVC, AV111
Video encoders2 encoders2 encoders
Size

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Size specs

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Card lengthNot published272 mm
Card heightNot published115 mm12
Slot widthNot published2 slots
Notes on 12 values — test conditions and caveats
  1. 1Intel Arc B570, Release date: All three launch-day reviews are dated 16 Jan 2025; Intel's page gives only the quarter 'Q4'24.
  2. 2Intel Arc B570, Launch price: Launch MSRP; Ars Technica notes it only counts if you can actually get one at that price.
  3. 3Intel Arc B570, Shader cores: Derived per definition: 18 Xe-cores x 128 shading units = 2,304.
  4. 4Intel Arc B570, Boost clock: Intel publishes only a 'Graphics Clock'; per the key's definition it is recorded as the boost clock.
  5. 5Intel Arc B570, Power connectors: Intel sells no first-party card; partner B570 cards use a single 8-pin connector.
  6. 6Intel Arc B570, PCIe lanes: Eight electrical lanes; Ars Technica notes Arc relies on Resizable BAR to perform optimally.
  7. 7Intel Arc B570, DisplayPort version: Maker caps DisplayPort 2.1 at UHBR 13.5.
  8. 8Intel Arc B580, DisplayPort version: Intel rates the DisplayPort outputs at DP 2.1 up to UHBR 13.5 (second output listed at UHBR 10).
  9. 9Intel Arc B570, HDMI outputs: Intel sells no first-party B570; this is the standard partner-card port layout.
  10. 10Intel Arc B570, Hardware encode: Maker also lists 'H.265 (HEVC) Hardware Encode/Decode: Yes' and 'AV1 Encode/Decode: Yes'.
  11. 11Intel Arc B580, Hardware encode: Intel's spec table also lists H.264 and H.265 (HEVC) hardware encode as Yes.
  12. 12Intel Arc B580, Card height: Intel publishes this dimension as the card's 'Width' (115 mm) alongside the 272 mm length.

Performance and Specs

The Intel Arc B580 drives heavier workloads with 2,560 shader cores and a 2,670 MHz boost clock. It also features an 18 MB last-level cache to help speed up processing tasks.

By comparison, the Intel Arc B570 steps down to 2,304 shader cores and a 2,500 MHz boost clock [Intel publishes only a 'Graphics Clock'; per the key's definition it is recorded as the boost clock.]. This makes the B580 better suited for demanding gaming and rendering sessions.

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Performance and Specs

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Memory and Bandwidth

Memory configuration heavily favors the higher-end model. The Arc B580 equips 12 GB of GDDR6 video memory across a 192-bit bus, achieving a memory bandwidth of 456 GB/s.

The Arc B570 drops down to 10 GB of video memory on a 160-bit bus, yielding 380 GB/s of bandwidth. Both cards maintain a 19 Gbps memory speed, but the wider bus on the B580 handles high-resolution textures more efficiently.

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Memory and Bandwidth

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Power and Efficiency

Power requirements highlight the efficiency focus of the lower-tier card. The Arc B570 operates at a board power of 150 W ★, making it easier to fit into tighter thermal budgets.

The Arc B580 demands 190 W and recommends a 600 W power supply. Both units rely on a single 8-pin power connector [Intel sells no first-party card; partner B570 cards use a single 8-pin connector.], keeping physical installation similarly straightforward.

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Power and Efficiency

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The Verdict

Buy the Intel Arc B580 if you want maximum frame rates and memory bandwidth. Buy the Intel Arc B570 if you need to lower your system's power draw and upfront cost.

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Verdict

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Where to buy

FAQ

What power supply is recommended for the Intel Arc B570?

Intel does not publish a recommended PSU wattage for the B570.

What are the physical dimensions of the Intel Arc B570?

Intel publishes no physical dimensions for the B570 because it makes no first-party card.

Do both cards support AV1 encoding?

Yes, both models feature hardware encode for H.264, HEVC, and AV1.

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FAQ

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