AMD Instinct MI308X vs Intel Arc B570 Comparison

Where Each One Wins

The AMD Instinct MI308X and Intel Arc B570 occupy fundamentally different positions in the hardware landscape, and the recorded data reflects that split clearly. The MI308X is an accelerator built around the CDNA 3.0 architecture, designed for compute workloads where massive memory capacity and raw FP32 throughput matter. The Arc B570 is a consumer-oriented graphics card from the Battlemage generation, with a full DirectX 12 Ultimate feature set and display outputs.

On compute metrics, the MI308X dominates without contest. Its FP32 throughput of 81.72 TFLOPS is roughly seven times the Arc B570's 11.52 TFLOPS. The MI308X also delivers FP16 at the same 81.72 TFLOPS rate with a 1:1 ratio, while the Arc B570 reaches 23.04 TFLOPS FP16 with a 2:1 ratio. For any workload that scales with raw floating-point performance, the MI308X is the clear choice.

Memory capacity is another decisive separator. The MI308X carries 192 GB of HBM3 across an 8192-bit bus, yielding 5.32 TB/s of bandwidth. The Arc B570 has 10 GB of GDDR6 on a 160-bit bus with 380.0 GB/s. The MI308X offers nearly 14 times the bandwidth and 19 times the capacity. Large model inference, scientific simulation, and data-intensive compute tasks require that kind of memory footprint; the Arc B570 cannot approach it.

The Arc B570 wins in areas tied to consumer graphics functionality. It has 80 ROPs and a pixel rate of 200.0 GPixel/s, whereas the MI308X lists 0 ROPs and 0 MPixel/s. The MI308X has no display outputs, while the Arc B570 provides 1x HDMI 2.1a and 3x DisplayPort 2.1. The Arc B570 also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4; the MI308X reports N/A for all three API categories. Any task requiring rasterization, display output, or modern graphics APIs belongs to the Arc B570.

The benchmark database only contains results for the Arc B570, with an average benchmark score of 20556 and a percentile rank of 65 among all GPUs. Its nearest rivals include the NVIDIA GeForce RTX 3070 Mobile at 20534 (0.1% ahead), the Intel Arc A750 at 20582 (0.1% behind), the NVIDIA Quadro M4000M at 20480 (0.4% ahead), and the AMD Radeon R9 M390X at 20662 (0.5% behind). The MI308X has no recorded benchmark scores and no nearest rivals in the database, so its measured performance cannot be compared directly in the same framework.

The Verdict

The data indicates that these two products are not competitors. The MI308X is built for compute density: 153,000 million transistors on a 1017 mm² die at 5 nm, with 19,456 shading units and a 750 W TDP. It is an OAM module with no power connectors, no display outputs, and no consumer API support. Its release date is December 5, 2023, and it follows the Radeon Instinct line. This is a datacenter accelerator.

The Arc B570 is a dual-slot consumer graphics card, 272 mm long and 115 mm tall, with a 150 W TDP and a single 8-pin power connector. It has 19,600 million transistors on a 272 mm² die, also at 5 nm, with 2,304 shading units, 144 TMUs, 80 ROPs, and 18 ray tracing cores. It launched on January 15, 2025, succeeding the Alchemist generation. The database shows an active production status.

For compute-focused buyers, the MI308X is the only option with the memory and throughput profile for large-scale acceleration. For anyone needing a graphics card with rasterization, ray tracing, display outputs, and modern API support, the Arc B570 is the product the data supports. The Arc B570's launch MSRP is 219 USD.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between these two accelerators, and the MI308X has an empty benchmark list. However, the architectural specifications allow for meaningful comparisons across several dimensions.

FP32 compute is the largest gap. The MI308X delivers 81.72 TFLOPS, which is 7.09 times the Arc B570's 11.52 TFLOPS. FP16 shows a different ratio: the MI308X sustains 81.72 TFLOPS at 1:1, while the Arc B570 reaches 23.04 TFLOPS at 2:1, putting the MI308X 3.55 times ahead. Texture rate follows a similar pattern, with the MI308X at 2,553.6 GTexel/s versus 360.0 GTexel/s for the Arc B570, a 7.09 times advantage.

Memory bandwidth is the second major separator. The MI308X's 5.32 TB/s is exactly 14 times the Arc B570's 380.0 GB/s. The bus width difference is extreme: 8192 bit versus 160 bit. Memory clock rates also differ, with the MI308X running at 1300 MHz (5.2 Gbps effective) and the Arc B570 at 2375 MHz (19 Gbps effective). The Arc B570 uses faster GDDR6 signaling, but the MI308X's HBM3 configuration and massive bus width produce far greater aggregate bandwidth.

The Arc B570 wins decisively in pixel throughput. Its 200.0 GPixel/s pixel rate compares to 0 MPixel/s for the MI308X. The Arc B570 also supports ray tracing with 18 dedicated RT cores, a feature the MI308X does not list. Clock behavior differs too: the Arc B570 runs at a flat 2500 MHz for both base and boost, while the MI308X spans from 1000 MHz base to 2100 MHz boost.

The Arc B570's benchmark results cluster around its nearest rivals. Its PassMark G3D score of 14195 and GPU compute score of 7281 sit alongside a Geekbench OpenCL score of 83514 and Vulkan score of 96844. The 3DMark Steel Nomad DX12 result is 2649. These figures place it within 0.5% of the AMD Radeon R9 M390X and 0.1% of the NVIDIA GeForce RTX 3070 Mobile in average score.

FAQ

Q: Which card has more memory bandwidth?

A: The AMD Instinct MI308X has 5.32 TB/s from HBM3 across an 8192-bit bus. The Intel Arc B570 has 380.0 GB/s from GDDR6 on a 160-bit bus.

Q: Can the MI308X output video to a display?

A: No. The MI308X lists no display outputs, while the Arc B570 provides 1x HDMI 2.1a and 3x DisplayPort 2.1.

Q: Which product supports DirectX 12 Ultimate?

A: The Intel Arc B570 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI308X reports N/A for all three API categories.

Q: What is the transistor count difference?

A: The MI308X has 153,000 million transistors on a 1017 mm² die, giving a density of 150.4M per mm². The Arc B570 has 19,600 million transistors on a 272 mm² die, with a density of 72.1M per mm².

Q: How does the Arc B570 compare to its nearest rivals in the database?

A: The Arc B570's average benchmark score is 20556. It sits 0.1% ahead of the NVIDIA GeForce RTX 3070 Mobile (20534), 0.1% behind the Intel Arc A750 (20582), 0.4% ahead of the NVIDIA Quadro M4000M (20480), and 0.5% behind the AMD Radeon R9 M390X (20662).

Q: What is the FP32 throughput of each product?

A: The MI308X delivers 81.72 TFLOPS FP32. The Arc B570 delivers 11.52 TFLOPS FP32, which is 7.09 times lower.

Architecture Differences

The MI308X uses the Aqua Vanjaram chip with the CDNA 3.0 architecture, part of the Instinct MIx generation. The Arc B570 uses the BMG-G21 chip with the Xe2-HPG architecture, part of the Battlemage Arc 5 generation. Both are fabricated by TSMC at 5 nm, but the die sizes diverge sharply: the MI308X measures 1017 mm² with 153,000 million transistors, while the Arc B570 measures 272 mm² with 19,600 million transistors. Transistor density reflects this: 150.4M per mm² for the MI308X versus 72.1M per mm² for the Arc B570.

The compute pipelines are structured differently. The MI308X has 19,456 shading units and 1,216 TMUs, with no ROPs listed. The Arc B570 has 2,304 shading units, 144 TMUs, and 80 ROPs, plus 18 ray tracing cores. The MI308X has no RT core count listed. The MI308X's FP32 and FP16 rates match at 81.72 TFLOPS, indicating a 1:1 ratio, while the Arc B570's FP16 rate of 23.04 TFLOPS is double its FP32 rate, indicating a 2:1 ratio.

Memory subsystems reflect the intended use cases. The MI308X uses HBM3 with 192 GB capacity, an 8192-bit bus, and 1300 MHz memory clock (5.2 Gbps effective). The Arc B570 uses GDDR6 with 10 GB capacity, a 160-bit bus, and 2375 MHz memory clock (19 Gbps effective). The MI308X's bandwidth advantage is 14 times.

Power and physical design differ completely. The MI308X is an OAM module with a 750 W TDP and no power connectors, suggesting a system-integrated power delivery approach. The Arc B570 is a dual-slot card with a 150 W TDP and a single 8-pin connector. The suggested PSU rating is 1150 W for the MI308X and 450 W for the Arc B570. The MI308X connects via PCIe 5.0 x16, while the Arc B570 uses PCIe 4.0 x8. The Arc B570 measures 272 mm by 115 mm, while the MI308X has no listed dimensions.

The API support gap is complete. The Arc B570 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI308X reports N/A for DirectX, OpenGL, and Vulkan, reinforcing its role as a compute accelerator without a graphics pipeline. Release timing also reflects the product split: the MI308X launched December 5, 2023, while the Arc B570 launched January 15, 2025, succeeding the Alchemist line.