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AMD Radeon RX 9070 XTvsIntel Arc B580: Spec Showdown
Both the AMD Radeon RX 9070 XT and the Intel Arc B580 support modern GDDR6 memory and hardware-accelerated AV1 encoding. Choosing between them comes down to a trade-off between raw processing power and strict power efficiency at different price tiers.
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- MOST WINS
Best for High-end enthusiasts seeking maximum compute power and memory bandwidth
Wins11 / 14 
Best for Budget-conscious builders needing efficient 1440p performance
Wins3 / 14
Biggest differences
Launch price
Intel Arc B580 leads
2.41×
lower is better
- AMD Radeon RX 9070 XT599 USD
- Intel Arc B580249 USD
PCIe lanes
AMD Radeon RX 9070 XT leads
2×
higher is better
- AMD Radeon RX 9070 XT16 lanes
- Intel Arc B5808 lanes
Last-level cache
AMD Radeon RX 9070 XT leads
3.56×
higher is better
- AMD Radeon RX 9070 XT64 MB
- Intel Arc B58018 MB
Shader cores
AMD Radeon RX 9070 XT leads
+60%
higher is better
- AMD Radeon RX 9070 XT4,096 cores
- Intel Arc B5802,560 cores
Where each one wins
AMD Radeon RX 9070 XT
- Shader cores
- Boost clock
- Video memory
- Memory bus width
- Memory bandwidth
- Memory speed
- Last-level cache
- PCIe version
- PCIe lanes
- HDMI version
- DisplayPort version
Intel Arc B580
- Launch price
- Board power
- Recommended PSU
What both have
- Memory typeGddr6
- Power connectors8-pin
- HDMI outputs1 ports
- DisplayPort outputs3 ports
- Hardware encodeH.264, HEVC, AV1
Every spec
Red marks the better value in each row.
| Spec | AMD Radeon RX 9070 XT | Intel Arc B580 |
|---|---|---|
| Overview | ||
| Release date | 2025-03 | 2024-12 |
| Launch price | 599 USD1 | 249 USD |
| Graphics chip | ||
| Architecture | Rdna 4 | Xe2 |
| Shader cores | 4,096 cores | 2,560 cores |
| Boost clock | 2,970 MHz2 | 2,670 MHz |
| Base clock | Not published | Not published |
| FP32 compute | 48.7 TFLOPS | Not published |
| Memory | ||
| Video memory | 16 GB | 12 GB |
| Memory type | Gddr6 | Gddr6 |
| Memory bus width | 256 bit | 192 bit |
| Memory bandwidth | 640 GB/s | 456 GB/s |
| Memory speed | 20 Gbps | 19 Gbps |
| Last-level cache | 64 MB | 18 MB |
| Power | ||
| Board power | 304 W | 190 W |
| Recommended PSU | 750 W | 600 W |
| Power connectors | 8-pin3 | 8-pin |
| Interface | ||
| PCIe version | 5.0 | 4.0 |
| PCIe lanes | 16 lanes | 8 lanes |
| Display outputs | ||
| HDMI version | 2.1b | 2.1 |
| DisplayPort version | 2.1a4 | 2.15 |
| HDMI outputs | 1 ports | 1 ports |
| DisplayPort outputs | 3 ports | 3 ports |
| Max displays | Not published | 4 displays |
| Video engine | ||
| Hardware encode | H.264, HEVC, AV1 | H.264, HEVC, AV16 |
| Video encoders | Not published | 2 encoders |
| Size | ||
| Card length | Not published | 272 mm |
| Card height | Not published | 115 mm7 |
| Slot width | Not published | 2 slots |
Notes on 7 values — test conditions and caveats
- 1AMD Radeon RX 9070 XT, Launch price: TechSpot reports AMD subsidizes this MSRP with a $50 retailer rebate, so street prices often run higher.
- 2AMD Radeon RX 9070 XT, Boost clock: TechSpot's 2400 MHz figure is AMD's 'game' clock; the boost rating is 2970 MHz.
- 3AMD Radeon RX 9070 XT, Power connectors: Corsair notes a few partner 90-series cards use 12V-2x6; the vast majority use 2x 8-pin.
- 4AMD Radeon RX 9070 XT, DisplayPort version: TechPowerUp specifies the DisplayPort outputs as UHBR13.5.
- 5Intel Arc B580, DisplayPort version: Intel rates the DisplayPort outputs at DP 2.1 up to UHBR 13.5 (second output listed at UHBR 10).
- 6Intel Arc B580, Hardware encode: Intel's spec table also lists H.264 and H.265 (HEVC) hardware encode as Yes.
- 7Intel Arc B580, Card height: Intel publishes this dimension as the card's 'Width' (115 mm) alongside the 272 mm length.
Performance and processing
The AMD Radeon RX 9070 XT dominates raw graphics output with 4,096 shader cores and a robust 2,970 MHz boost clock [TechSpot's 2400 MHz figure is AMD's 'game' clock; the boost rating is 2970 MHz.]. This muscle delivers 48.7 TFLOPS of FP32 compute to heavy rendering pipelines.
In contrast, the Intel Arc B580 fields 2,560 cores and a 2,670 MHz boost clock. It leaves base clocks and compute figures unpublished, meaning buyers must rely on its smaller core count for mid-tier workloads.
Memory and bandwidth
Memory subsystem differences heavily favor the AMD card for demanding 4K assets and dense textures. It pairs a 256-bit memory bus with 16 GB of video memory, pushing 640 GB/s of bandwidth at 20 Gbps alongside a large 64 MB last-level cache.
The Intel option equips 12 GB of video memory over a 192-bit bus. It achieves 456 GB/s at 19 Gbps and relies on an 18 MB last-level cache, fitting standard 1440p gaming better.
Power and system demands
Running the AMD hardware requires substantial electrical overhead, demanding a 304 W board power and a 750 W recommended PSU. It uses an 8-pin connector [Corsair notes a few partner 90-series cards use 12V-2x6; the vast majority use 2x 8-pin.].
The Intel card pulls significantly less energy with a 190 W board power and asks for only a 600 W recommended PSU while using an 8-pin connector.
Connectivity and interface
Motherboard compatibility leans heavily toward the AMD architecture due to PCIe 5.0 support across 16 lanes. Its display outputs include an HDMI 2.1b port and three DisplayPort 2.1a connections [TechPowerUp specifies the DisplayPort outputs as UHBR13.5.].
The Intel rival uses PCIe 4.0 across 8 lanes. Its display array features an HDMI 2.1 port and three DisplayPort 2.1 outputs [Intel rates the DisplayPort outputs at DP 2.1 up to UHBR 13.5 (second output listed at UHBR 10).], supporting up to 4 displays.
The Verdict
Buy the Radeon RX 9070 XT if you need top-tier compute performance and expansive memory bandwidth. Buy the Arc B580 if you want a budget-friendly graphics card with lower power requirements.
Where to buy
AMD Radeon RX 9070 XT
Best for High-end enthusiasts seeking maximum compute power and memory bandwidth
Intel Arc B580
Best for Budget-conscious builders needing efficient 1440p performance
FAQ
What video encoding formats do these graphics cards support?
Both the AMD Radeon RX 9070 XT and the Intel Arc B580 support hardware-accelerated H.264, HEVC, and AV1 encoding.
What are the launch prices for these GPUs?
The AMD Radeon RX 9070 XT has a launch price of $599 [TechSpot reports AMD subsidizes this MSRP with a $50 retailer rebate, so street prices often run higher.], while the Intel Arc B580 costs $249.
How many display outputs do they feature?
Both cards include one HDMI port and three DisplayPort outputs, though the Intel model supports a maximum of 4 displays.
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