AMD Radeon Instinct MI300A vs Lisuan Tech LX ULTRA Comparison

Head-to-Head Benchmarks

The recorded database contains no direct benchmark scores for either the AMD Radeon Instinct MI300A or the Lisuan Tech LX ULTRA. Both entries report an average benchmark score of 0, and the head-to-head benchmark array is empty. Consequently, there are no measured wins for either part in this comparison. The percentile versus all GPUs is identical for both at 50, which indicates that neither product has been positioned relative to the broader GPU population through actual testing data. The absence of benchmark results means that any performance ranking must be derived from the specification sheets rather than from empirical measurements. The MI300A lists a FP32 throughput of 81.72 TFLOPS, while the LX ULTRA lists 24.58 TFLOPS, a 3.3x gap in raw single-precision compute. In FP16, the MI300A delivers 653.7 TFLOPS (8:1 ratio), compared to 49.15 TFLOPS (2:1 ratio) for the LX ULTRA, representing a 13.3x difference. Texture rate for the MI300A is 2,553.6 GTexel/s versus 384.0 GTexel/s for the LX ULTRA, a 6.7x advantage. The pixel rate field shows 0 MPixel/s for the MI300A (due to no display outputs) and 192.0 GPixel/s for the LX ULTRA, which is the only metric where the LX ULTRA shows a clear numerical lead. Memory bandwidth favors the MI300A at 10.3 TB/s versus 432.0 GB/s for the LX ULTRA, a 23.8x difference. These figures are derived entirely from the specification data, not from benchmark execution.

The Verdict

Based strictly on the recorded data, the AMD Radeon Instinct MI300A is the compute-oriented part. Its FP32 output of 81.72 TFLOPS and FP16 output of 653.7 TFLOPS place it in a different performance class than the Lisuan Tech LX ULTRA, which manages 24.58 TFLOPS FP32 and 49.15 TFLOPS FP16. The MI300A also carries 192 GB of HBM3 memory with a 8192-bit bus, yielding 10.3 TB/s of bandwidth. The LX ULTRA offers 24 GB of GDDR6 on a 192-bit bus, reaching 432.0 GB/s. For workloads that depend on memory capacity and bandwidth, such as large model inference or data-parallel processing, the MI300A has a decisive advantage. The LX ULTRA, however, includes 96 ROPs and a pixel rate of 192.0 GPixel/s, along with 4x DisplayPort 1.4a outputs, making it suitable for display-driven tasks or rasterization pipelines. The MI300A has no display outputs and a pixel rate of 0 MPixel/s, so it cannot drive monitors. The LX ULTRA also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3, while the MI300A lists no API support in the database. Users requiring graphics output or gaming API compatibility should choose the LX ULTRA. Users requiring maximum compute throughput and memory bandwidth should choose the MI300A. The power envelope also differs: the MI300A has a TDP of 750 W with a suggested PSU of 1150 W, while the LX ULTRA has a TDP of 225 W with a suggested PSU of 550 W. Neither part has a launch MSRP recorded.

Architecture Differences

The AMD Radeon Instinct MI300A uses the CDNA 3.0 architecture on a chip called Aqua Vanjaram, fabricated on a 5 nm process at TSMC. It integrates 153,000 million transistors on a die size of 1017 mm², resulting in a transistor density of 150.4M / mm². The Lisuan Tech LX ULTRA uses the TrueGPU architecture on a chip called 7G105, fabricated on a 6 nm process at TSMC. Its transistor count and die size are listed as unknown, so no density figure is available. The MI300A belongs to the Radeon Instinct (MIx) generation, while the LX ULTRA belongs to the 7G100 generation. The MI300A has a shading unit count of 19456, 1216 TMUs, and 0 ROPs. The LX ULTRA has 6144 shading units, 192 TMUs, and 96 ROPs. Neither part lists RT cores or tensor cores in the database. The MI300A uses HBM3 memory with an 8192-bit bus, while the LX ULTRA uses GDDR6 with a 192-bit bus. The MI300A memory clock is 2525 MHz with 10.1 Gbps effective, while the LX ULTRA memory clock is 2250 MHz with 18 Gbps effective. The MI300A has no display outputs; the LX ULTRA has 4x DisplayPort 1.4a. The MI300A uses a PCIe 5.0 x16 bus interface, while the LX ULTRA uses PCIe 4.0 x16. The MI300A is an OAM Module with no power connectors, while the LX ULTRA is a Dual-slot card with a single 16-pin power connector.

Specification Differences

The two parts differ across nearly every specification field. Process node: MI300A is 5 nm, LX ULTRA is 6 nm. Transistors: MI300A has 153,000 million, LX ULTRA is unknown. Die size: MI300A is 1017 mm², LX ULTRA is unknown. Transistor density: MI300A is 150.4M / mm², LX ULTRA has no value. Base clock: MI300A is 1000 MHz, LX ULTRA has none. Boost clock: MI300A is 2100 MHz, LX ULTRA has none. Memory clock: MI300A is 2525 MHz (10.1 Gbps effective), LX ULTRA is 2250 MHz (18 Gbps effective). Memory size: MI300A is 192 GB, LX ULTRA is 24 GB. Memory type: MI300A is HBM3, LX ULTRA is GDDR6. Bus width: MI300A is 8192 bit, LX ULTRA is 192 bit. Bandwidth: MI300A is 10.3 TB/s, LX ULTRA is 432.0 GB/s. Shading units: MI300A has 19456, LX ULTRA has 6144. TMUs: MI300A has 1216, LX ULTRA has 192. ROPs: MI300A has 0, LX ULTRA has 96. Pixel rate: MI300A is 0 MPixel/s, LX ULTRA is 192.0 GPixel/s. Texture rate: MI300A is 2,553.6 GTexel/s, LX ULTRA is 384.0 GTexel/s. FP32: MI300A is 81.72 TFLOPS, LX ULTRA is 24.58 TFLOPS. FP16: MI300A is 653.7 TFLOPS (8:1), LX ULTRA is 49.15 TFLOPS (2:1). TDP: MI300A is 750 W, LX ULTRA is 225 W. Slot width: MI300A is OAM Module, LX ULTRA is Dual-slot. Power connectors: MI300A has none, LX ULTRA has 1x 16-pin. Suggested PSU: MI300A is 1150 W, LX ULTRA is 550 W. Bus interface: MI300A is PCIe 5.0 x16, LX ULTRA is PCIe 4.0 x16. Display outputs: MI300A has none, LX ULTRA has 4x DisplayPort 1.4a. APIs: MI300A lists none, LX ULTRA lists DirectX 12 Ultimate (12_2), OpenGL 4.6, Vulkan 1.3. Dimensions: MI300A has no recorded length, height, or width; LX ULTRA is 268 mm (10.6 inches) long, 112 mm (4.4 inches) high, and 40 mm (1.6 inches) wide. Production status: MI300A has none listed, LX ULTRA is Active. Release date: MI300A is 2023-12-05, LX ULTRA is 2026-03-16. Predecessor: MI300A is FirePro Data Center, LX ULTRA has none. Successor: both have none. Launch MSRP: both have none.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Radeon Instinct MI300A lists 81.72 TFLOPS FP32, while the Lisuan Tech LX ULTRA lists 24.58 TFLOPS FP32, a 3.3x difference in favor of the MI300A.

Q: Does the LX ULTRA support display output?

A: Yes, the LX ULTRA includes 4x DisplayPort 1.4a outputs and a pixel rate of 192.0 GPixel/s. The MI300A has no display outputs and a pixel rate of 0 MPixel/s.

Q: Which part has more memory bandwidth?

A: The MI300A provides 10.3 TB/s of bandwidth via 192 GB of HBM3 on an 8192-bit bus. The LX ULTRA provides 432.0 GB/s via 24 GB of GDDR6 on a 192-bit bus.

Q: What is the power requirement difference?

A: The MI300A has a TDP of 750 W and a suggested PSU of 1150 W. The LX ULTRA has a TDP of 225 W and a suggested PSU of 550 W.

Q: Which GPU supports modern graphics APIs?

A: The LX ULTRA lists DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3 support. The MI300A does not list any API support in the database.

Q: Are there any benchmark scores recorded for either GPU?

A: No. Both GPUs have an average benchmark score of 0, and the head-to-head benchmark array is empty. The percentile versus all GPUs is 50 for both parts.