AMD Instinct MI308X vs Intel Arc 140T Mobile Comparison

Head-to-Head Benchmarks

The database contains no recorded benchmark scores for either the AMD Instinct MI308X or the Intel Arc 140T Mobile. Both entries show an average benchmark score of zero, with no head-to-head benchmark results, no individual benchmark entries, and no nearest rival comparisons. The recorded data indicates zero wins for each product in direct competition. This absence of measurable performance data means any quantitative comparison between the two must rely entirely on their architectural specifications and theoretical compute figures.

The AMD Instinct MI308X delivers 81.72 TFLOPS of FP32 performance, while the Intel Arc 140T Mobile delivers 4.813 TFLOPS. This represents a 16.97x raw FP32 throughput advantage for the AMD part, a figure derived directly from the recorded specifications. In FP16, the MI308X sustains 81.72 TFLOPS with a 1:1 ratio, whereas the Arc 140T reaches 9.626 TFLOPS with a 2:1 ratio, giving the AMD accelerator an 8.49x lead in that precision class.

Texture throughput follows the same pattern. The MI308X records 2,553.6 GTexel/s against the Arc 140T's 150.4 GTexel/s, a 16.98x difference. Pixel rate, however, inverts the comparison: the MI308X lists 0 MPixel/s because it has no ROPs, while the Arc 140T posts 75.20 GPixel/s from its 32 ROPs. This is the only recorded metric where the Intel part shows a clear numerical advantage.

The AMD product uses 19456 shading units and 1216 TMUs, while the Intel product uses 1024 shading units and 64 TMUs. The MI308X's memory subsystem provides 192 GB of HBM3 across an 8192-bit bus, yielding 5.32 TB/s bandwidth. The Arc 140T uses system shared memory with system-dependent bandwidth, so no fixed memory bandwidth figure exists in the database.

Architecture Differences

The two products share a 5 nm process node and TSMC as the foundry, but diverge sharply in every other architectural dimension. The AMD Instinct MI308X is built on CDNA 3.0 architecture, using the Aqua Vanjaram chip, and belongs to the Instinct (MIx) generation. The Intel Arc 140T Mobile uses Xe-LPG+ architecture, based on the Arrow Lake-H chip, and belongs to the Arc Graphics-M (Arrow Lake) generation. The AMD part is a discrete accelerator packaged as an OAM Module with PCIe 5.0 x16 bus interface, while the Intel part is an integrated GPU (IGP) with no separate bus interface.

Transistor counts differ dramatically. The MI308X contains 153,000 million transistors on a 1017 mm² die, producing a transistor density of 150.4M per mm². The Arc 140T's transistor count, die size, and density are recorded as unknown or null in the database, so no direct comparison is possible on those fields.

Memory architecture is fundamentally different. The MI308X features dedicated HBM3 memory with 192 GB capacity, an 8192-bit bus, and 5.32 TB/s bandwidth. The Arc 140T uses system shared memory, meaning its capacity, bus width, and bandwidth are all system-dependent rather than fixed specifications. Memory clock also differs: the MI308X runs at 1300 MHz with 5.2 Gbps effective, while the Arc 140T's memory clock is listed as "System Shared."

Clock speeds show a notable inversion. The MI308X has a base clock of 1000 MHz and a boost clock of 2100 MHz. The Arc 140T has a base clock of 300 MHz but a boost clock of 2350 MHz, which is 250 MHz higher than the AMD part's boost. This indicates the Intel integrated GPU can reach a higher peak clock, despite its much lower base frequency.

The MI308X has no ROPs, no RT cores, and no tensor cores recorded. The Arc 140T has 32 ROPs and 8 RT cores, with tensor cores left unspecified. API support differs as well: the MI308X lists DirectX, OpenGL, and Vulkan as N/A, while the Arc 140T supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Power and cooling requirements separate the two into different product categories. The MI308X has a TDP of 750 W, requires a suggested PSU of 1150 W, and uses no power connectors because it is an OAM Module. The Arc 140T has a TDP of 35 W, uses no external power connectors as an IGP, and has no suggested PSU listed. The MI308X has no display outputs, while the Arc 140T's display outputs are portable-device dependent.

Release dates place these products in different market moments. The MI308X launched on 2023-12-05, while the Arc 140T launched on 2025-01-12. The AMD product's predecessor is Radeon Instinct, while the Intel product's predecessor is HD Graphics-M. The Arc 140T has an active production status, while the MI308X's production status is not recorded.

Where Each One Wins

The AMD Instinct MI308X wins decisively in raw compute workloads. Its FP32 throughput of 81.72 TFLOPS, FP16 throughput of 81.72 TFLOPS, and texture rate of 2,553.6 GTexel/s position it for heavy parallel computation tasks such as large-scale scientific simulation, machine learning training, and high-bandwidth data processing. The 192 GB HBM3 memory with 5.32 TB/s bandwidth provides a memory capacity and bandwidth envelope that the Arc 140T cannot approach, since the Intel part relies entirely on system shared memory with system-dependent performance.

The Intel Arc 140T Mobile wins in integrated graphics scenarios where power constraints and system integration matter. Its 35 W TDP is 715 W lower than the MI308X's 750 W TDP, making it suitable for portable devices where the MI308X's OAM Module form factor and 1150 W suggested PSU would be impossible to accommodate. The Arc 140T also delivers actual pixel rendering with 75.20 GPixel/s from its 32 ROPs, while the MI308X delivers 0 MPixel/s because it lacks ROPs entirely. The Intel part includes 8 RT cores, enabling hardware ray tracing, whereas the MI308X records no RT cores.

The Arc 140T's higher boost clock of 2350 MHz versus the MI308X's 2100 MHz suggests better single-threaded or lightly-threaded performance scaling in the Intel part, though this is a clock specification rather than a measured benchmark result. The Arc 140T's API support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 indicates compatibility with standard graphics software stacks, while the MI308X lists all three APIs as N/A, signaling a compute-focused rather than graphics-focused device.

FAQ

Q: Which product has higher FP32 compute performance?

A: The AMD Instinct MI308X delivers 81.72 TFLOPS of FP32 performance, while the Intel Arc 140T Mobile delivers 4.813 TFLOPS. The AMD part is approximately 16.97x faster in this metric.

Q: Does the Intel Arc 140T Mobile support hardware ray tracing?

A: Yes, the Arc 140T includes 8 RT cores. The AMD Instinct MI308X records no RT cores in the database.

Q: What memory does each product use?

A: The MI308X uses 192 GB of HBM3 memory with an 8192-bit bus and 5.32 TB/s bandwidth. The Arc 140T uses system shared memory, with capacity, bus width, and bandwidth all system-dependent.

Q: Are these products comparable in power consumption?

A: No. The MI308X has a TDP of 750 W and requires a suggested PSU of 1150 W. The Arc 140T has a TDP of 35 W and requires no external power connectors as an IGP.

Q: Which product can output to displays?

A: The Intel Arc 140T Mobile has display outputs that are portable-device dependent. The AMD Instinct MI308X has no display outputs.

Q: What is the release timeline for each product?

A: The MI308X was released on 2023-12-05, and the Arc 140T was released on 2025-01-12.

Specification Differences

| Field | AMD Instinct MI308X | Intel Arc 140T Mobile |

|---|---|---|

| Architecture | CDNA 3.0 | Xe-LPG+ |

| Chip | Aqua Vanjaram | Arrow Lake-H |

| Generation | Instinct (MIx) | Arc Graphics-M (Arrow Lake) |

| Process Node | 5 nm | 5 nm |

| Foundry | TSMC | TSMC |

| Transistors | 153,000 million | unknown |

| Die Size | 1017 mm² | unknown |

| Transistor Density | 150.4M / mm² | null |

| Base Clock | 1000 MHz | 300 MHz |

| Boost Clock | 2100 MHz | 2350 MHz |

| Memory Clock | 1300 MHz, 5.2 Gbps effective | System Shared |

| Memory Size | 192 GB | System Shared |

| Memory Type | HBM3 | System Shared |

| Memory Bus Width | 8192 bit | System Shared |

| Memory Bandwidth | 5.32 TB/s | System Dependent |

| Shading Units | 19456 | 1024 |

| TMUs | 1216 | 64 |

| ROPs | 0 | 32 |

| RT Cores | null | 8 |

| Pixel Rate | 0 MPixel/s | 75.20 GPixel/s |

| Texture Rate | 2,553.6 GTexel/s | 150.4 GTexel/s |

| FP32 | 81.72 TFLOPS | 4.813 TFLOPS |

| FP16 | 81.72 TFLOPS (1:1) | 9.626 TFLOPS (2:1) |

| TDP | 750 W | 35 W |

| Slot Width | OAM Module | IGP |

| Power Connectors | None | null |

| Suggested PSU | 1150 W | null |

| Bus Interface | PCIe 5.0 x16 | IGP |

| Display Outputs | No outputs | Portable Device Dependent |

| DirectX | N/A | 12 Ultimate (12_2) |

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Production Status | null | Active |

| Release Date | 2023-12-05 | 2025-01-12 |

| Predecessor | Radeon Instinct | HD Graphics-M |

The Verdict

The data places these products in entirely different segments. The AMD Instinct MI308X is a high-power, compute-oriented accelerator with 81.72 TFLOPS FP32, 192 GB HBM3, and 5.32 TB/s bandwidth, designed for rack-scale deployment as an OAM Module with a 750 W TDP. The Intel Arc 140T Mobile is a low-power integrated GPU with 4.813 TFLOPS FP32, 35 W TDP, and system shared memory, designed for portable devices.

For workloads requiring maximum parallel compute throughput, large memory capacity, or extreme memory bandwidth, the MI308X is the only viable choice based on recorded specifications. Its 16.97x FP32 advantage and 192 GB dedicated HBM3 memory cannot be matched by any integrated solution. The absence of display outputs and standard graphics API support confirms this is not a graphics card but a compute accelerator.

For portable systems needing integrated graphics with ray tracing capability, the Arc 140T is the appropriate selection. Its 8 RT cores, 32 ROPs, 75.20 GPixel/s pixel rate, and support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4 make it a functional graphics processor. Its 2350 MHz boost clock exceeds the MI308X's 2100 MHz, and its 35 W TDP fits within mobile power envelopes.

The MI308X has no ROPs and no display outputs, making it unsuitable for any rendering or display task. The Arc 140T has no dedicated memory and no fixed bandwidth figure, making it unsuitable for workloads that require the MI308X's 5.32 TB/s memory throughput. The production status of the Arc 140T is active, while the MI308X's status is unrecorded, though the MI308X's earlier release date of 2023-12-05 suggests it has been available longer.

Users should select based on the recorded data: the MI308X for compute density and memory bandwidth, the Arc 140T for integrated graphics, ray tracing, and low power consumption. No benchmark results exist in the database to refine these conclusions further.