AMD Radeon Instinct MI300 vs Intel Arc B370 Comparison

The Verdict

The AMD Radeon Instinct MI300 and Intel Arc B370 occupy entirely different segments of the hardware landscape. The MI300 is a data-center accelerator built for massive compute workloads, while the Arc B370 is an integrated graphics solution for mobile processors. Based on the recorded data, the MI300 delivers 47.87 TFLOPS of FP32 compute, whereas the Arc B370 delivers 6.144 TFLOPS. That is a 7.8x gap in raw FP32 throughput, which translates into the MI300 being the clear choice for any workload that demands heavy parallel processing, such as scientific simulations or machine learning inference.

The Arc B370, with its 25 W TDP and integrated form factor, suits ultra-portable devices where power efficiency and physical integration matter more than absolute performance. Its 3DMark Steel Nomad DX12 score of 1184 places it at the 5th percentile among all GPUs in the database, indicating that it is a low-end part by overall performance standards. The MI300, with no benchmark entries in the database, holds a 50th percentile ranking, which reflects its position as a mid-tier performer relative to all recorded GPUs, though its compute specifications suggest it is aimed at specialized tasks rather than general graphics.

The data shows no head-to-head benchmark comparisons between these two products. The MI300 has no recorded benchmark scores, and the Arc B370 has only a single 3DMark result. Consequently, the verdict rests on architectural intent and specification analysis. The MI300 is for users who need enormous memory capacity, 128 GB of HBM3, and extreme bandwidth at 6.55 TB/s. The Arc B370 is for users who need a built-in graphics solution with modern API support, including DirectX 12 Ultimate and Vulkan 1.4, within a low-power envelope. The MI300 has no display outputs, confirming it is not designed for rendering to a screen. The Arc B370 supports portable device dependent outputs, confirming its role in mobile systems.

Architecture Differences

The AMD Radeon Instinct MI300 uses the CDNA 3.0 architecture, built on a 5 nm process at TSMC. The chip, codenamed Aqua Vanjaram, contains 153,000 million transistors on a 1017 mm² die. The transistor density is 150.4 million per square millimeter. This is a massive, purpose-built compute accelerator with no display capabilities and no graphics API support listed, as its role is purely computational.

The Intel Arc B370 uses the Xe3-LPG architecture, built on a 3 nm process at Intel. The chip, codenamed Panther Lake, is part of the Arc Graphics-M generation for mobile platforms. The transistor count and die size are listed as unknown in the database. This is an integrated graphics processor, meaning it shares system memory rather than using dedicated VRAM. The memory configuration is listed as System Shared, with bandwidth described as System Dependent, which means performance varies based on the host platform's memory subsystem.

The MI300 has 14,080 shading units, 880 texture mapping units, and no ROPs, with a pixel rate of 0 MPixel/s. The texture rate is 1,496.0 GTexel/s. The Arc B370 has 1,280 shading units, 40 texture mapping units, and 20 ROPs, with a pixel rate of 48.00 GPixel/s and a texture rate of 96.00 GTexel/s. The MI300 has no dedicated ray tracing cores listed, while the Arc B370 includes 10 ray tracing cores. Neither product lists tensor core counts in the database.

The MI300 operates at a base clock of 1000 MHz and a boost clock of 1700 MHz, with memory running at 1600 MHz (6.4 Gbps effective). The Arc B370 operates at a base clock of 300 MHz and a boost clock of 2400 MHz, with system shared memory. The MI300 uses an 8192-bit memory bus, the widest possible interface for HBM3, enabling 6.55 TB/s of bandwidth. The Arc B370's memory bus width is listed as System Shared, meaning it depends entirely on the host processor's memory controller.

The MI300 draws 600 W of power, requiring two 8-pin power connectors and a suggested 1000 W power supply. The Arc B370 draws only 25 W and requires no power connectors, as it is integrated into the processor package. The MI300 is a PCIe 5.0 x16 add-in card measuring 267 mm (10.5 inches) in length and 111 mm (4.4 inches) in height. The Arc B370 has no physical dimensions listed, as it is an IGP (integrated graphics processor) that occupies no expansion slot.

The MI300 supports no graphics APIs in the database, while the Arc B370 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. This stark contrast confirms the MI300 is not intended for gaming or consumer graphics, while the Arc B370 is a modern graphics solution for portable devices.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark comparisons between the AMD Radeon Instinct MI300 and the Intel Arc B370. The MI300 has zero recorded benchmark scores, and the wins counter for both products is zero. The only benchmark data available is a single 3DMark Steel Nomad DX12 result for the Arc B370, which scored 1184 points.

This score places the Arc B370 at the 5th percentile among all GPUs in the database. Its nearest rivals, based on average scores, are the ATI Mobility Radeon HD 5570 with an average score of 1186, which is 0.2% higher than the Arc B370. The ATI Radeon HD 5770 averages 1190, which is 0.5% higher. The AMD Radeon HD 7650M averages 1192, which is 0.7% higher. The AMD FirePro M2000 averages 1168, which is 1.4% lower than the Arc B370. These deltas indicate that the Arc B370 performs at a level comparable to a decade-old discrete mobile graphics chip, with differences within 1.4% either way.

The MI300, by contrast, has no recorded benchmark scores, so no direct comparison can be made. However, its FP32 compute of 47.87 TFLOPS versus the Arc B370's 6.144 TFLOPS offers a specification-level comparison. The MI300 delivers 7.8 times the FP32 throughput. In FP16, the MI300 delivers 383.0 TFLOPS (8:1 ratio), while the Arc B370 delivers 12.29 TFLOPS (2:1 ratio). That is a 31.2x gap in FP16 throughput, though the differing ratios mean the MI300 is optimized for heavily packed FP16 operations, whereas the Arc B370's FP16 is only twice its FP32 rate.

The texture rate differences are equally stark. The MI300 reaches 1,496.0 GTexel/s, while the Arc B370 reaches 96.00 GTexel/s, a 15.6x difference. Pixel rate comparisons are not meaningful because the MI300 has zero ROPs and a pixel rate of 0 MPixel/s, while the Arc B370 has 20 ROPs and a pixel rate of 48.00 GPixel/s. The MI300 cannot rasterize at all, reinforcing its compute-only role.

Memory bandwidth is another major separator. The MI300's 6.55 TB/s dwarfs the Arc B370's System Dependent bandwidth, which cannot be quantified without knowing the host platform's memory configuration. The MI300's 128 GB of HBM3 memory is the largest capacity in the database for any single GPU, while the Arc B370 relies on shared system memory, the size of which is determined by the host laptop or handheld device.

Specification Differences

The following fields differ between the AMD Radeon Instinct MI300 and the Intel Arc B370:

Process Node: The MI300 uses 5 nm at TSMC. The Arc B370 uses 3 nm at Intel.

Transistors: The MI300 has 153,000 million transistors. The Arc B370's transistor count is unknown.

Die Size: The MI300 measures 1017 mm². The Arc B370's die size is unknown.

Transistor Density: The MI300 has 150.4 million transistors per mm². The Arc B370 has no density data.

Base Clock: The MI300 runs at 1000 MHz. The Arc B370 runs at 300 MHz.

Boost Clock: The MI300 boosts to 1700 MHz. The Arc B370 boosts to 2400 MHz.

Memory Clock: The MI300 runs at 1600 MHz (6.4 Gbps effective). The Arc B370 uses System Shared memory.

Memory Size: The MI300 has 128 GB of HBM3. The Arc B370 has System Shared memory.

Memory Bus Width: The MI300 has an 8192-bit bus. The Arc B370 has System Shared bus width.

Memory Bandwidth: The MI300 provides 6.55 TB/s. The Arc B370 provides System Dependent bandwidth.

Shading Units: The MI300 has 14,080. The Arc B370 has 1,280.

TMUs: The MI300 has 880. The Arc B370 has 40.

ROPs: The MI300 has 0. The Arc B370 has 20.

Ray Tracing Cores: The MI300 has none listed. The Arc B370 has 10.

Pixel Rate: The MI300 delivers 0 MPixel/s. The Arc B370 delivers 48.00 GPixel/s.

Texture Rate: The MI300 delivers 1,496.0 GTexel/s. The Arc B370 delivers 96.00 GTexel/s.

FP32 Performance: The MI300 delivers 47.87 TFLOPS. The Arc B370 delivers 6.144 TFLOPS.

FP16 Performance: The MI300 delivers 383.0 TFLOPS (8:1). The Arc B370 delivers 12.29 TFLOPS (2:1).

TDP: The MI300 draws 600 W. The Arc B370 draws 25 W.

Slot Width: The MI300 has no slot width listed. The Arc B370 is an IGP.

Power Connectors: The MI300 requires 2x 8-pin. The Arc B370 requires none.

Suggested PSU: The MI300 suggests 1000 W. The Arc B370 has no suggestion.

Bus Interface: The MI300 uses PCIe 5.0 x16. The Arc B370 uses IGP.

Display Outputs: The MI300 has no outputs. The Arc B370 has Portable Device Dependent outputs.

DirectX Support: The MI300 has none listed. The Arc B370 supports 12 Ultimate (12_2).

OpenGL Support: The MI300 has none listed. The Arc B370 supports 4.6.

Vulkan Support: The MI300 has none listed. The Arc B370 supports 1.4.

Dimensions: The MI300 measures 267 mm (10.5 inches) by 111 mm (4.4 inches). The Arc B370 has no dimensions listed.

Production Status: The MI300 has no status listed. The Arc B370 is Active.

Release Date: The MI300 released on January 3, 2023. The Arc B370 releases on January 26, 2026.

Predecessor: The MI300's predecessor is FirePro Data Center. The Arc B370 has no predecessor listed.

Generation: The MI300 is from the Radeon Instinct (MIx) generation. The Arc B370 is from the Arc Graphics-M (Panther Lake) generation.

Benchmark Score: The MI300 has no benchmarks. The Arc B370 has one 3DMark Steel Nomad DX12 score of 1184.

Percentile: The MI300 sits at the 50th percentile. The Arc B370 sits at the 5th percentile.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Radeon Instinct MI300 delivers 47.87 TFLOPS, which is 7.8 times higher than the Intel Arc B370's 6.144 TFLOPS.

Q: Does the Intel Arc B370 support hardware ray tracing?

A: Yes, the Arc B370 includes 10 ray tracing cores. The MI300 has no ray tracing cores listed in the database.

Q: What memory configuration does each GPU use?

A: The MI300 uses 128 GB of HBM3 memory across an 8192-bit bus with 6.55 TB/s of bandwidth. The Arc B370 uses System Shared memory with System Dependent bandwidth, meaning it relies on the host system's RAM.

Q: What is the power consumption difference?

A: The MI300 has a TDP of 600 W and requires two 8-pin power connectors plus a suggested 1000 W power supply. The Arc B370 has a TDP of 25 W and requires no power connectors.

Q: How does the Arc B370 compare to its nearest rivals in 3DMark Steel Nomad DX12?

A: The Arc B370 scores 1184, which is 0.2% lower than the ATI Mobility Radeon HD 5570 (1186), 0.5% lower than the ATI Radeon HD 5770 (1190), 0.7% lower than the AMD Radeon HD 7650M (1192), and 1.4% higher than the AMD FirePro M2000 (1168).

Q: Which GPU supports modern graphics APIs?

A: The Arc B370 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300 has no graphics API support listed, consistent with its compute-only design and lack of display outputs.