AMD Instinct MI300 vs NVIDIA RTX 3500 Mobile Ada Generation Comparison

Where Each One Wins

The recorded benchmark data shows no head-to-head comparison entries, and both parts hold a median 50th percentile placement among all GPUs in the database. With zero wins recorded for either side, the measurable performance split is not established by direct scores. What the data does reveal is a clear division of capability profiles: the AMD Instinct MI300 is built around massive compute throughput and memory bandwidth for data-center workloads, while the NVIDIA RTX 3500 Mobile Ada Generation is oriented toward graphics rendering, ray tracing, and mobile deployment.

The MI300 delivers 47.87 TFLOPS of FP32 and 47.87 TFLOPS of FP16, both at a 1:1 ratio, which indicates sustained compute density across precision formats. Its texture rate reaches 1,496.0 GTexel/s, a figure that outpaces the RTX 3500 Mobile's 247.2 GTexel/s by a factor of six. The NVIDIA part counters with 98.88 GPixel/s pixel throughput, while the MI300 records 0 MPixel/s, meaning the AMD accelerator performs no rasterization work at all. The RTX 3500 Mobile also carries 40 ray tracing cores and 160 tensor cores, features entirely absent from the MI300 specification. For any workload involving real-time graphics, the NVIDIA GPU is the only viable option in this pairing.

Conversely, the MI300's 128 GB of HBM3 memory with an 8192-bit bus and 5.32 TB/s bandwidth positions it for large-scale matrix operations and inference tasks where data residency and memory movement dominate. The RTX 3500 Mobile's 12 GB GDDR6 on a 192-bit bus delivers 432.0 GB/s, roughly 8 percent of the AMD part's bandwidth. The compute-to-memory ratio underscores different design philosophies: the MI300 is a server accelerator, the RTX 3500 Mobile is a workstation graphics processor.

Architecture Differences

The MI300 uses the CDNA 3.0 architecture on TSMC's 5 nm process, with the chip designated Aqua Vanjaram. It integrates 153,000 million transistors across a 1017 mm² die, yielding a transistor density of 150.4M per mm². The RTX 3500 Mobile uses the Ada Lovelace architecture on the same 5 nm node and TSMC foundry, but the AD104 chip contains 35,800 million transistors on a 294 mm² die, giving 121.8M per mm². The MI300's die is 3.46 times larger and packs 4.27 times more transistors.

Memory architectures diverge sharply. The MI300 uses HBM3 with a 1300 MHz memory clock (5.2 Gbps effective), while the RTX 3500 Mobile uses GDDR6 at 2250 MHz (18 Gbps effective). The MI300's bus width of 8192 bit is 42.7 times wider than the RTX 3500 Mobile's 192-bit bus. This width advantage drives the massive bandwidth gap: 5.32 TB/s versus 432.0 GB/s.

Compute resources differ in scale and type. The MI300 has 14,080 shading units and 880 texture mapping units, with 0 ROPs. The RTX 3500 Mobile has 5,120 shading units, 160 TMUs, and 64 ROPs. The MI300 has no ray tracing cores or tensor cores listed, while the RTX 3500 Mobile includes 40 RT cores and 160 tensor cores. Clock behavior also differs: the MI300 runs at 1000 MHz base and 1700 MHz boost, whereas the RTX 3500 Mobile runs at 1110 MHz base and 1545 MHz boost. The NVIDIA part starts higher but peaks lower.

Power and interface specifications reinforce divergent use cases. The MI300 draws 600 W TDP with 2x 8-pin power connectors and requires a 1000 W suggested PSU. The RTX 3500 Mobile has a 100 W TDP, no power connectors, and is an integrated graphics package (IGP). The MI300 uses PCIe 5.0 x16; the RTX 3500 Mobile uses PCIe 4.0 x16. The MI300 has no display outputs; the RTX 3500 Mobile's outputs are portable device dependent. API support similarly splits: the MI300 lists N/A for DirectX, OpenGL, and Vulkan, while the RTX 3500 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

The Verdict

The data directs each product to a distinct audience. The AMD Instinct MI300 is a 600 W, 5 nm data-center accelerator with 128 GB HBM3, 5.32 TB/s bandwidth, and 47.87 TFLOPS FP32/FP16 compute. It has no display outputs, no rasterization pipeline, and no graphics API support. Its 267 mm length and 111 mm height indicate a server card form factor. The RTX 3500 Mobile is a 100 W mobile GPU with 12 GB GDDR6, 432.0 GB/s bandwidth, 15.82 TFLOPS FP32/FP16, and full graphics API coverage including ray tracing and tensor cores. Its IGP slot width and portable-device-dependent outputs confirm a laptop or mobile workstation implementation.

For compute-heavy workloads such as large model inference, scientific simulation, or high-bandwidth memory-bound tasks, the MI300 delivers 3.02 times the FP32 throughput and 12.3 times the memory bandwidth of the RTX 3500 Mobile. For graphics rendering, real-time ray tracing, or any DirectX/Vulkan application, only the RTX 3500 Mobile qualifies. The MI300's 0 MPixel/s pixel rate and absent graphics APIs make it unsuitable for display output. The RTX 3500 Mobile's 12 GB memory and 192-bit bus limit its capacity for very large datasets, but its 64 ROPs and 40 RT cores provide actual rendering capability.

Release timing shows the MI300 launched on 2023-01-03, and the RTX 3500 Mobile followed on 2023-03-20. The MI300's predecessor is Radeon Instinct; the RTX 3500 Mobile's predecessor is Ampere-MW and successor is Blackwell-MW. The RTX 3500 Mobile is listed as Active in production status; the MI300 has no production status recorded. Neither part has a launch MSRP in the database, and neither has recorded benchmark scores or nearest rivals.

FAQ

Q: Which GPU has higher FP32 compute?

A: The AMD Instinct MI300 delivers 47.87 TFLOPS FP32, which is 3.02 times the 15.82 TFLOPS of the NVIDIA RTX 3500 Mobile Ada Generation.

Q: Does the MI300 support graphics APIs?

A: No. The MI300 lists N/A for DirectX, OpenGL, and Vulkan. The RTX 3500 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the memory bandwidth difference?

A: The MI300 provides 5.32 TB/s from 128 GB HBM3 on an 8192-bit bus. The RTX 3500 Mobile provides 432.0 GB/s from 12 GB GDDR6 on a 192-bit bus, which is 8.1 percent of the MI300's bandwidth.

Q: Which GPU has ray tracing capabilities?

A: Only the NVIDIA RTX 3500 Mobile, which includes 40 ray tracing cores and 160 tensor cores. The MI300 specification lists no RT cores or tensor cores.

Q: How do their power requirements compare?

A: The MI300 has a 600 W TDP with 2x 8-pin power connectors and a 1000 W suggested PSU. The RTX 3500 Mobile has a 100 W TDP, no power connectors, and an IGP slot width.

Q: What are the transistor counts?

A: The MI300 contains 153,000 million transistors on a 1017 mm² die. The RTX 3500 Mobile contains 35,800 million transistors on a 294 mm² die. Both use TSMC's 5 nm process.

Head-to-Head Benchmarks

No head-to-head benchmark entries exist in the database for this pairing, and neither part has an average benchmark score above zero. The wins count stands at zero for both sides. Without measured performance deltas, the comparison rests on recorded specifications and architectural traits.

The largest numerical gaps appear in memory bandwidth and compute throughput. The MI300's 5.32 TB/s exceeds the RTX 3500 Mobile's 432.0 GB/s by 4.89 TB/s, a 12.3-fold advantage. In FP32, the MI300's 47.87 TFLOPS leads the RTX 3500 Mobile's 15.82 TFLOPS by 32.05 TFLOPS, or 3.02 times. Texture rate shows a similar pattern: 1,496.0 GTexel/s versus 247.2 GTexel/s, a 6.05-fold gap. The MI300 also leads in memory capacity, 128 GB versus 12 GB, and transistor count, 153,000 million versus 35,800 million.

The RTX 3500 Mobile holds advantages in pixel rate, 98.88 GPixel/s versus 0 MPixel/s, and in base clock, 1110 MHz versus 1000 MHz. The NVIDIA part has 64 ROPs to the MI300's 0, and 40 RT cores to the MI300's none. The RTX 3500 Mobile's 160 tensor cores have no counterpart in the MI300's listed specifications. The MI300's boost clock of 1700 MHz exceeds the RTX 3500 Mobile's 1545 MHz, and its TMU count of 880 dwarfs the NVIDIA part's 160.

Shader count also favors the MI300: 14,080 shading units versus 5,120. The MI300's die size of 1017 mm² is 3.46 times the RTX 3500 Mobile's 294 mm². Transistor density reverses slightly, with the MI300 at 150.4M per mm² and the RTX 3500 Mobile at 121.8M per mm². The MI300's memory clock of 1300 MHz (5.2 Gbps effective) is lower than the RTX 3500 Mobile's 2250 MHz (18 Gbps effective), but the bus width difference overwhelms that clock gap.

Specification Differences

| Field | AMD Instinct MI300 | NVIDIA RTX 3500 Mobile Ada Generation |

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

| Architecture | CDNA 3.0 | Ada Lovelace |

| Process node | 5 nm | 5 nm |

| Foundry | TSMC | TSMC |

| Transistors | 153,000 million | 35,800 million |

| Die size | 1017 mm² | 294 mm² |

| Transistor density | 150.4M / mm² | 121.8M / mm² |

| Base clock | 1000 MHz | 1110 MHz |

| Boost clock | 1700 MHz | 1545 MHz |

| Memory clock | 1300 MHz 5.2 Gbps effective | 2250 MHz 18 Gbps effective |

| Memory size | 128 GB | 12 GB |

| Memory type | HBM3 | GDDR6 |

| Memory bus width | 8192 bit | 192 bit |

| Memory bandwidth | 5.32 TB/s | 432.0 GB/s |

| Shading units | 14080 | 5120 |

| TMUs | 880 | 160 |

| ROPs | 0 | 64 |

| RT cores | None | 40 |

| Tensor cores | None | 160 |

| Pixel rate | 0 MPixel/s | 98.88 GPixel/s |

| Texture rate | 1,496.0 GTexel/s | 247.2 GTexel/s |

| FP32 | 47.87 TFLOPS | 15.82 TFLOPS |

| FP16 | 47.87 TFLOPS (1:1) | 15.82 TFLOPS (1:1) |

| TDP | 600 W | 100 W |

| Slot width | Not listed | IGP |

| Power connectors | 2x 8-pin | None |

| Suggested PSU | 1000 W | Not listed |

| Bus interface | PCIe 5.0 x16 | PCIe 4.0 x16 |

| Display outputs | No outputs | Portable Device Dependent |

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

| OpenGL | N/A | 4.6 |

| Vulkan | N/A | 1.4 |

| Dimensions | 267 mm 10.5 inches, 111 mm 4.4 inches | Not listed |

| Release date | 2023-01-03 | 2023-03-20 |

| Production status | Not listed | Active |

| Predecessor | Radeon Instinct | Ampere-MW |

| Successor | Not listed | Blackwell-MW |

| Launch MSRP | Not listed | Not listed |