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NVIDIA GeForce RTX 5070vsIntel Arc B580: Spec Comparison

The NVIDIA GeForce RTX 5070 and Intel Arc B580 both arrive with 12 GB of video memory and fit into standard dual-slot cases. They differ sharply in their target investment level and raw processing capabilities.

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Intro

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Best for

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Biggest differences

  • Shader cores

    NVIDIA GeForce RTX 5070 leads

    2.4×

    higher is better

    • NVIDIA GeForce RTX 50706,144 cores
    • Intel Arc B5802,560 cores

  • Launch price

    Intel Arc B580 leads

    2.2×

    lower is better

    • NVIDIA GeForce RTX 5070549 USD
    • Intel Arc B580249 USD

  • PCIe lanes

    NVIDIA GeForce RTX 5070 leads

    2×

    higher is better

    • NVIDIA GeForce RTX 507016 lanes
    • Intel Arc B5808 lanes

  • Last-level cache

    NVIDIA GeForce RTX 5070 leads

    2.67×

    higher is better

    • NVIDIA GeForce RTX 507048 MB
    • Intel Arc B58018 MB

Where each one wins

  • NVIDIA GeForce RTX 5070

    • Shader cores
    • Memory type
    • Memory bandwidth
    • Memory speed
    • Last-level cache
    • PCIe version
    • PCIe lanes
    • HDMI version
    • DisplayPort version
    • Card length
    • Card height

  • Intel Arc B580

    • Launch price
    • Boost clock
    • Board power
    • Recommended PSU
    • Video encoders

What both have

  • Video memory12 GB
  • Memory bus width192 bit
  • HDMI outputs1 ports
  • DisplayPort outputs3 ports
  • Max displays4 displays
  • Hardware encodeH.264, HEVC, AV1
  • Slot width2 slots

Every spec

Red marks the better value in each row.

SpecNVIDIA GeForce RTX 5070Intel Arc B580
Overview

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Overview specs

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Release date2025-032024-12
Launch price549 USD249 USD
Graphics chip

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Graphics chip specs

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ArchitectureBlackwellXe2
Shader cores6,144 cores2,560 cores
Boost clock2,512 MHz2,670 MHz
Base clock2,330 MHzNot published
FP32 compute30.9 TFLOPSNot published
Memory

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Memory specs

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Video memory12 GB12 GB
Memory typeGddr7Gddr6
Memory bus width192 bit192 bit
Memory bandwidth672 GB/s456 GB/s
Memory speed28 Gbps19 Gbps
Last-level cache48 MB18 MB
Power

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Power specs

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Board power250 W190 W
Recommended PSU650 W1600 W
Power connectors12V-2x628-pin
Interface

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Interface specs

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PCIe version5.04.0
PCIe lanes16 lanes8 lanes
Display outputs

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Display outputs specs

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HDMI version2.1b2.1
DisplayPort version2.1b32.14
HDMI outputs1 ports1 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, AV1H.264, HEVC, AV15
Video encoders1 encoders2 encoders
Size

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Size specs

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Card length242 mm272 mm
Card height112 mm115 mm6
Slot width2 slots2 slots
Notes on 6 values — test conditions and caveats
  1. 1NVIDIA GeForce RTX 5070, Recommended PSU: NVIDIA's minimum for a PC with a Ryzen 9 9950X; other systems may need a different PSU.
  2. 2NVIDIA GeForce RTX 5070, Power connectors: One 16-pin 12V-2x6 socket; an adapter for two 8-pin cables comes in the box.
  3. 3NVIDIA GeForce RTX 5070, DisplayPort version: DisplayPort 2.1b at the full UHBR20 rate.
  4. 4Intel Arc B580, DisplayPort version: Intel rates the DisplayPort outputs at DP 2.1 up to UHBR 13.5 (second output listed at UHBR 10).
  5. 5Intel Arc B580, Hardware encode: Intel's spec table also lists H.264 and H.265 (HEVC) hardware encode as Yes.
  6. 6Intel Arc B580, Card height: Intel publishes this dimension as the card's 'Width' (115 mm) alongside the 272 mm length.

Performance and Architecture

The NVIDIA card runs on the Blackwell architecture featuring 6,144 shader cores and 30.9 TFLOPS of FP32 compute power. It achieves a 2,512 MHz boost clock, while the Intel Arc B580 uses the Xe2 architecture with 2,560 cores and reaches a 2,670 MHz boost clock.

Memory specifications further separate the two options. The RTX 5070 utilizes GDDR7 memory reaching 28 Gbps and 672 GB/s of bandwidth, paired with a 48 MB last-level cache. The Arc B580 relies on GDDR6 memory at 19 Gbps, delivering 456 GB/s across the same 192-bit bus width alongside an 18 MB last-level cache.

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Performance and Architecture

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Power and System Requirements

Running the NVIDIA card requires a 250 W board power allocation and a 650 W recommended power supply unit, utilizing a 12V-2x6 power connector with an included adapter for two 8-pin cables. The Intel competitor draws 190 W and asks for a 600 W power supply via a standard 8-pin connector.

PCIe connectivity also varies between the options. The RTX 5070 supports PCIe 5.0 across 16 lanes, whereas the Arc B580 operates on PCIe 4.0 across 8 lanes.

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Power and System Requirements

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Displays and Video Encoding

Both graphics cards support up to four displays through a single HDMI 2.1 port and three DisplayPort outputs. The NVIDIA hardware features HDMI 2.1b and DisplayPort 2.1b connections, with the latter supporting the full UHBR20 rate. Intel implements HDMI 2.1 and DisplayPort 2.1 up to UHBR 13.5 on its primary output and UHBR 10 on the second.

Video encoding capabilities cover H.264, HEVC, and AV1 formats on both models. The Intel option includes two video encoders, while the NVIDIA hardware integrates one encoder.

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Displays and Video Encoding

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Physical Dimensions

The RTX 5070 measures 242 mm in length and 112 mm in height. The Arc B580 spans 272 mm long and 115 mm wide. Both cards occupy two expansion slots inside the PC case.

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Physical Dimensions

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The Verdict

Buy the NVIDIA GeForce RTX 5070 if you want maximum rendering compute and faster GDDR7 memory. Buy the Intel Arc B580 if you need a budget-friendly option with lower power draw.

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Verdict

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Where to buy

  • NVIDIA GeForce RTX 5070

    Best for High-end compute and memory bandwidth

  • Intel Arc B580

    Best for Budget-conscious systems and lower power draw

    View on eBay · $345.99

FAQ

What power supply do these graphics cards require?

The RTX 5070 requires a 650 W power supply, while the Arc B580 requires a 600 W power supply.

Do both cards support AV1 hardware encoding?

Yes, both graphics cards feature hardware encode support for H.264, HEVC, and AV1.

How much video memory do they include?

Both models come equipped with 12 GB of video memory across a 192-bit memory bus width.

What is the launch price for each card?

The RTX 5070 has a launch price of $549, and the Arc B580 launches at $249.

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FAQ

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