AMD Instinct MI308X vs Intel Arc A380E x2 Comparison

Architecture Differences

The AMD Instinct MI308X and Intel Arc A380E x2 represent fundamentally different design philosophies. The MI308X uses AMD's CDNA 3.0 architecture, built on the Aqua Vanjaram chip, while the Arc A380E x2 relies on Intel's Xe-HPG architecture with the DG2-128 die. These are not competing products in the traditional sense; the MI308X is an accelerator module designed for compute workloads, whereas the Arc A380E is a graphics card aimed at embedded and edge applications.

Manufacturing processes differ significantly. The MI308X is fabricated on TSMC's 5 nm node, while the Arc A380E x2 uses TSMC's 6 nm process. This node advantage contributes to the MI308X's massive transistor count of 153,000 million, compared to just 7,200 million for the Arc A380E. Die size tells a similar story: the MI308X measures 1017 mm² versus 157 mm² for the Intel part. Consequently, transistor density is much higher on the AMD chip at 150.4M per mm², while the Intel chip achieves 45.9M per mm².

The MI308X is a compute-focused accelerator with 19,456 shading units, 1,216 texture mapping units, and no ROPs. Its pixel rate is listed as 0 MPixel/s, confirming it has no display output capability. The Arc A380E x2, by contrast, is a full graphics processor with 1,024 shading units, 64 TMUs, 32 ROPs, and 8 ray tracing cores. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI308X lists N/A for all graphics APIs. The Arc A380E x2 also provides 8x mini-DisplayPort 2.0 outputs, whereas the MI308X has no display outputs at all.

Memory architecture is another key differentiator. The MI308X uses 192 GB of HBM3 on an 8192-bit bus, delivering 5.32 TB/s of bandwidth. The Arc A380E x2 uses 6 GB of GDDR6 on a 96-bit bus, providing 186.0 GB/s. Clock speeds also diverge: the MI308X runs at a 1000 MHz base and 2100 MHz boost, while the Arc A380E x2 operates at a fixed 2000 MHz for both base and boost. Memory clocks are 1300 MHz (5.2 Gbps effective) for the AMD part and 1937 MHz (15.5 Gbps effective) for the Intel part.

Where Each One Wins

The data shows two distinct usage domains. The MI308X is designed for compute-heavy workloads where massive memory capacity, enormous bandwidth, and raw floating-point throughput matter. Its 81.72 TFLOPS FP32 and 81.72 TFLOPS FP16 (1:1 ratio) make it suitable for AI training, scientific simulation, and data center acceleration. The absence of display outputs and graphics APIs confirms its role as a headless accelerator.

The Arc A380E x2, with its 4.096 TFLOPS FP32 and 8.192 TFLOPS FP16 (2:1 ratio), targets graphics rendering and edge inference. Its 8 ray tracing cores, DirectX 12 Ultimate support, and 8x mini-DisplayPort 2.0 outputs position it for embedded visualization, digital signage, and compact multi-display setups. The higher base clock of 2000 MHz, combined with a 64.00 GPixel/s pixel rate, indicates a focus on responsive graphics output rather than raw compute density.

In practical terms, the MI308X wins in memory-bound and throughput-bound tasks. The 192 GB HBM3 pool is 32 times larger than the Arc A380E's 6 GB, and the 5.32 TB/s bandwidth is roughly 28.6 times higher. The Arc A380E x2 wins in power efficiency for graphics workloads, with a 130 W TDP versus 750 W for the MI308X, and in physical compatibility, using a standard single-slot design with a 1x 6-pin power connector.

Specification Differences

The two parts differ across nearly every measurable specification. Process node: 5 nm versus 6 nm. Transistors: 153,000 million versus 7,200 million. Die size: 1017 mm² versus 157 mm². Transistor density: 150.4M / mm² versus 45.9M / mm².

Clocks: base 1000 MHz versus 2000 MHz, boost 2100 MHz versus 2000 MHz, memory 1300 MHz (5.2 Gbps effective) versus 1937 MHz (15.5 Gbps effective). Memory: 192 GB HBM3 versus 6 GB GDDR6, 8192-bit bus versus 96-bit bus, 5.32 TB/s versus 186.0 GB/s.

Compute resources: 19,456 shading units versus 1,024, 1,216 TMUs versus 64, 0 ROPs versus 32, no RT cores versus 8. Pixel rate: 0 MPixel/s versus 64.00 GPixel/s. Texture rate: 2,553.6 GTexel/s versus 128.0 GTexel/s. FP32: 81.72 TFLOPS versus 4.096 TFLOPS. FP16: 81.72 TFLOPS (1:1) versus 8.192 TFLOPS (2:1).

Power and cooling: TDP 750 W versus 130 W, OAM Module slot width versus single-slot, no power connectors versus 1x 6-pin, suggested PSU 1150 W versus 300 W. Bus interface: PCIe 5.0 x16 versus PCIe 4.0 x8. Display outputs: none versus 8x mini-DisplayPort 2.0. Dimensions: not listed versus 265 mm length, 127 mm height, 20 mm width. Release dates: 2023-12-05 versus 2024-03-31. Production status: not listed versus end-of-life.

Head-to-Head Benchmarks

No benchmark scores are recorded in the database for either product. Both have an average benchmark score of 0, and the head-to-head benchmark list is empty. The wins count for each side is also 0. This means the database contains no direct performance measurements comparing these two accelerators.

However, the specification data allows for derived comparisons. The MI308X delivers 81.72 TFLOPS FP32, which is 19.95 times the Arc A380E's 4.096 TFLOPS. In FP16, the ratio is 9.97 times (81.72 versus 8.192), though the AMD part uses a 1:1 ratio while Intel uses 2:1. Texture rate favors the MI308X by a factor of 19.95 (2,553.6 GTexel/s versus 128.0 GTexel/s). Memory bandwidth shows the largest gap: 5.32 TB/s versus 186.0 GB/s, a 28.6 times difference.

The Arc A380E x2 counters in pixel throughput, where it achieves 64.00 GPixel/s versus 0 MPixel/s for the MI308X. It also has a higher base clock (2000 MHz versus 1000 MHz) and a more than five times lower TDP (130 W versus 750 W). The Intel part supports modern graphics APIs, while the AMD part has none.

Both products share a 50th percentile ranking against all GPUs in the database, and neither has nearest rivals listed. This suggests the database treats them as outliers in their respective categories, not directly comparable to mainstream consumer parts.

FAQ

Q: What is the primary use case for the AMD Instinct MI308X?

A: The MI308X is a compute accelerator with no display outputs and no graphics API support. Its 192 GB HBM3 memory, 5.32 TB/s bandwidth, and 81.72 TFLOPS FP32 point to data center workloads such as AI training and scientific computing.

Q: Can the Intel Arc A380E x2 be used for gaming?

A: The Arc A380E x2 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, and includes 8 ray tracing cores. Its 4.096 TFLOPS FP32 and 64.00 GPixel/s pixel rate are sufficient for entry-level graphics, though its embedded positioning suggests industrial or commercial use.

Q: Which product has more memory bandwidth?

A: The MI308X has 5.32 TB/s from HBM3 on an 8192-bit bus. The Arc A380E x2 has 186.0 GB/s from GDDR6 on a 96-bit bus. The MI308X provides roughly 28.6 times higher bandwidth.

Q: What are the power requirements for each?

A: The MI308X has a 750 W TDP and requires a suggested 1150 W power supply. The Arc A380E x2 has a 130 W TDP, uses a single 6-pin power connector, and requires a suggested 300 W power supply.

Q: Does either card support ray tracing?

A: Only the Arc A380E x2 includes ray tracing hardware, with 8 dedicated RT cores. The MI308X lists no RT cores and has no graphics API support.

Q: What is the physical form factor difference?

A: The MI308X is an OAM Module with no power connectors, designed for server chassis. The Arc A380E x2 is a single-slot card measuring 265 mm by 127 mm by 20 mm, with a 1x 6-pin power connector and 8x mini-DisplayPort 2.0 outputs.

The Verdict

The recorded data shows two products with no overlap in intended function. The MI308X is a massive compute accelerator: 153,000 million transistors, 192 GB of HBM3, 81.72 TFLOPS FP32, and a 750 W TDP. It has no display outputs, no graphics APIs, and no ROPs. This is a server-side part for workloads that need enormous memory capacity and bandwidth, not rendering.

The Arc A380E x2 is a compact graphics solution: 7,200 million transistors, 6 GB of GDDR6, 4.096 TFLOPS FP32, 8 RT cores, and a 130 W TDP. It fits in a single slot, uses a standard 6-pin connector, and outputs to 8 displays. The 2000 MHz fixed clock and 64.00 GPixel/s pixel rate indicate a focus on consistent graphics delivery rather than peak compute.

The MI308X is the correct choice for users running memory-intensive compute tasks that require more than 6 GB of capacity and bandwidth beyond 186.0 GB/s. The Arc A380E x2 is the correct choice for applications requiring graphics output, ray tracing, or multi-display support in a low-power, single-slot package. The data does not support using either product in the other's role: the MI308X cannot render, and the Arc A380E cannot match the MI308X's compute density.

Both share a 50th percentile ranking in the database, but that statistic is misleading without benchmark scores. The absence of recorded benchmarks and nearest rivals reinforces that these parts occupy separate niches. Buyers should decide based on memory, compute, and display requirements, not on comparative performance figures that do not exist in the database.