AMD Radeon RX 6650 XT vs Intel Arc B580 Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The Intel Arc B580 leads with an average benchmark score of 23021, placing it in the 68th percentile of all GPUs, while the AMD Radeon RX 6650 XT scores 19765 on average, which puts it in the 65th percentile.

Q: How does the Arc B580 compare to its nearest rivals?

A: The Arc B580's average score sits within 1% of the NVIDIA GeForce RTX 2080 (0.6% ahead), the RTX 3080 (0.7% behind), and the AMD RX 580 2048SP (0.2% behind). This places it in a performance tier roughly equivalent to those cards.

Q: What is the biggest benchmark win for the Intel Arc B580?

A: The largest margin is in Geekbench OpenCL, where the Arc B580 scores 92821 versus the RX 6650 XT's 10111, a massive 818% advantage. This is followed by a 65% lead in 3DMark Steel Nomad DX12 (3068 vs 1859) and a 34.9% lead in Geekbench Vulkan (109672 vs 81306).

Q: In which benchmarks does the AMD Radeon RX 6650 XT win?

A: The RX 6650 XT wins in PassMark DirectX 10 (109 vs 76, a 30.3% advantage), DirectX 11 (169 vs 128, 24.3% ahead), DirectX 9 (215 vs 183, 14.9% ahead), G2D (918 vs 709, 22.8% ahead), and G3D (17166 vs 15748, 8.3% ahead).

Q: How do the memory configurations differ?

A: The Arc B580 has 12 GB of GDDR6 on a 192-bit bus with 456.0 GB/s bandwidth. The RX 6650 XT has 8 GB of GDDR6 on a 128-bit bus with 280.3 GB/s bandwidth.

Q: What are the production statuses of these two GPUs?

A: The Intel Arc B580 is listed as Active production, released on 2024-12-12, while the AMD Radeon RX 6650 XT is End-of-life, released on 2022-05-09.

The Verdict

The data points to a clear split: the Intel Arc B580 is the stronger choice for modern DirectX 12 workloads and compute tasks, while the AMD Radeon RX 6650 XT retains advantages in legacy DirectX 9/10/11 scenarios and 2D performance. For gamers focused on current-generation titles, the Arc B580's 65% lead in 3DMark Steel Nomad DX12 (3068 vs 1859) is decisive. The Arc B580 also demonstrates vastly superior OpenCL compute performance (92821 vs 10111, 818% ahead), making it the obvious pick for compute-heavy applications. However, users running older games or applications built on DirectX 9/10/11 should note the RX 6650 XT's consistent wins in those specific tests, with margins ranging from 14.9% to 30.3%. The overall win count is tied at 5-5 across the ten head-to-head benchmarks, but the magnitude of Intel's wins in modern workloads far exceeds AMD's margins in legacy tests. Buyers prioritizing future-proofing and compute should select the Arc B580; buyers with backward-compatibility needs should consider the RX 6650 XT.

Head-to-Head Benchmarks

The Intel Arc B580 dominates the most demanding modern benchmark in the set. In 3DMark Steel Nomad DX12, the Arc B580 scores 3068 against the RX 6650 XT's 1859, a 65% advantage. This is a substantial gap that indicates the Arc B580 handles DirectX 12 rendering far more efficiently. The Geekbench results reinforce this pattern: in Vulkan, the Arc B580 scores 109672 versus 81306, a 34.9% lead, and in OpenCL the margin becomes extreme at 92821 versus 10111, an 818% difference. The OpenCL result is particularly striking; it suggests the Arc B580's compute architecture delivers performance an order of magnitude higher in this specific test.

The AMD Radeon RX 6650 XT fights back in the PassMark suite. Its best result is in DirectX 10, where it scores 109 against the Arc B580's 76, a 30.3% margin. In DirectX 11, it leads 169 to 128, a 24.3% advantage. The DirectX 9 test shows a 14.9% lead (215 vs 183), and the G2D test shows a 22.8% lead (918 vs 709). The G3D result is closer, with the RX 6650 XT ahead by 8.3% (17166 vs 15748). The Intel card narrowly wins PassMark DirectX 12 (76 vs 62, 22.6% ahead) and PassMark GPU Compute (7729 vs 7532, 2.6% ahead), but these are smaller margins than AMD's legacy wins.

Specification Differences

The memory subsystem is a major differentiator. The Intel Arc B580 offers 12 GB of GDDR6 on a 192-bit bus, delivering 456.0 GB/s of bandwidth. The AMD Radeon RX 6650 XT has 8 GB of GDDR6 on a 128-bit bus, with 280.3 GB/s of bandwidth. This gives the Arc B580 a 50% larger frame buffer and approximately 63% more bandwidth. Clock speeds also differ: the Arc B580 runs at a base and boost of 2670 MHz, while the RX 6650 XT has a base of 2055 MHz, a game clock of 2410 MHz, and a boost of 2635 MHz. The memory clock is 2375 MHz (19 Gbps effective) on the Arc B580 versus 2190 MHz (17.5 Gbps effective) on the RX 6650 XT.

Compute resources favor the Intel card. The Arc B580 has 2560 shading units, 160 TMUs, 80 ROPs, and 20 RT cores. The RX 6650 XT has 2048 shading units, 128 TMUs, 64 ROPs, and 32 RT cores. The pixel rate is 213.6 GPixel/s on the Arc B580 versus 168.6 GPixel/s on the RX 6650 XT, and texture rates are 427.2 GTexel/s versus 337.3 GTexel/s. FP32 throughput is 13.67 TFLOPS on the Arc B580 versus 10.79 TFLOPS on the RX 6650 XT. Display outputs differ as well: the Arc B580 has 1x HDMI 2.1a and 3x DisplayPort 2.1, while the RX 6650 XT has 1x HDMI 2.1 and 3x DisplayPort 1.4a. Power draw is 190 W for the Arc B580 versus 176 W for the RX 6650 XT; both use a single 8-pin connector and recommend a 450 W PSU. Both cards are dual-slot and use PCIe 4.0 x8.

Architecture Differences

The Intel Arc B580 is built on the Xe2-HPG architecture, part of the Battlemage generation (Arc 5), using the BMG-G21 chip. It is fabricated on a 5 nm process at TSMC, with 19,600 million transistors on a 272 mm² die, yielding a transistor density of 72.1M per mm². The AMD Radeon RX 6650 XT uses the RDNA 2.0 architecture, part of the Navi II (RX 6000) generation, with the Navi 23 chip. It is built on a 7 nm process, also at TSMC, with 11,060 million transistors on a 237 mm² die, for a density of 46.7M per mm². The Intel chip is newer, denser, and physically larger, which aligns with its higher transistor count and more advanced process node.

The RT core counts differ, with the RX 6650 XT having 32 RT cores versus 20 on the Arc B580, but the Intel architecture compensates with higher overall shader throughput. Both cards support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API-level features are identical. The production statuses reflect their lifecycles: the Arc B580 is Active and was released on 2024-12-12, while the RX 6650 XT is End-of-life and was released on 2022-05-09. The Arc B580's predecessor is Alchemist (Intel's prior architecture), and the RX 6650 XT's predecessor is Navi, with its successor listed as Navi III.

Where Each One Wins

The Intel Arc B580 wins decisively in modern, compute-heavy, and high-bandwidth scenarios. Its 65% lead in 3DMark Steel Nomad DX12 makes it the stronger pick for current DirectX 12 games and future titles that leverage the latest rendering APIs. The 34.9% Vulkan advantage further cements its position for Vulkan-based games and applications. The 818% OpenCL margin is the most extreme result in the comparison, indicating that compute workloads, such as GPGPU tasks, rendering, or machine learning inference, will see dramatic performance gains on the Arc B580. Additionally, the 12 GB memory capacity and 456.0 GB/s bandwidth provide a substantial buffer for high-resolution textures and large datasets, which the 8 GB RX 6650 XT cannot match.

The AMD Radeon RX 6650 XT wins in legacy DirectX environments and 2D operations. Its DirectX 10 result (109 vs 76) and DirectX 11 result (169 vs 128) show clear superiority for older game engines and applications that have not been updated to modern APIs. The DirectX 9 lead (215 vs 183) extends this to even older software. The G2D score (918 vs 709) indicates stronger 2D rendering performance, which could matter for desktop compositing or 2D applications. The G3D result (17166 vs 15748) is the closest significant margin in AMD's favor, suggesting that in some general 3D workloads, the RX 6650 XT holds an edge, albeit a modest one at 8.3%. For users with a library of older games or productivity software that relies on DirectX 9/10/11, the RX 6650 XT is the safer choice. For everything else, the data favors the Arc B580.