AMD Instinct MI355X vs Lisuan Tech LX MAX Comparison

Head-to-Head Benchmarks

The recorded database contains no completed benchmark runs for either the AMD Instinct MI355X or the Lisuan Tech LX MAX. Both parts show an average benchmark score of 0 and hold a 50th percentile position among all GPUs tracked in the database. The head-to-head benchmark table is empty, and the win count is zero for each side. The absence of measured scores means no direct performance comparison can be drawn from the data. What can be compared, however, are the raw specification-derived throughput numbers, which indicate the theoretical ceilings for each design.

The AMD Instinct MI355X lists FP32 throughput at 78.64 TFLOPS and FP16 at 78.64 TFLOPS on a 1:1 ratio. The Lisuan Tech LX MAX lists FP32 at 24.58 TFLOPS and FP16 at 49.15 TFLOPS on a 2:1 ratio. In FP32, the MI355X holds a 3.2x advantage over the LX MAX (78.64 divided by 24.58). In FP16, the MI355X leads by a factor of 1.6x (78.64 versus 49.15). The texture rate tells a similar story: the MI355X delivers 2,457.6 GTexel/s, while the LX MAX delivers 384.0 GTexel/s, a 6.4x gap. The pixel rate, however, favors the LX MAX, which lists 192.0 GPixel/s, while the MI355X lists 0 MPixel/s, reflecting its lack of ROPs and display outputs. The MI355X is not built for rasterization; it is a compute accelerator.

Memory bandwidth separates the two dramatically. The MI355X has 8.19 TB/s of bandwidth from 288 GB of HBM3e on an 8192-bit bus. The LX MAX has 432.0 GB/s from 12 GB of GDDR6 on a 192-bit bus. The MI355X provides 18.9x the bandwidth. The MI355X also has a wider memory clock specification at 2000 MHz (8 Gbps effective) versus 2250 MHz (18 Gbps effective) for the LX MAX, though the effective data rate for the GDDR6 is higher per pin, the aggregate bandwidth is dwarfed by the HBM3e implementation.

Architecture Differences

The MI355X is built on CDNA 4.0 architecture, manufactured on a 3 nm process by TSMC, using the MI350 256CU chip. It belongs to the Instinct (MIx) generation and lists a predecessor of Radeon Instinct. The LX MAX uses TrueGPU architecture, built on the 7G106 chip, manufactured on a 6 nm process by TSMC, and belongs to the 7G100 generation. The process node difference is 3 nm versus 6 nm, which is a full generation apart in lithography. The MI355X packs 185,000 million transistors on a die size of 2380 mm², giving a transistor density of 77.7M per mm². The LX MAX does not list transistor count, die size, or density in the database, so those figures are unavailable.

The MI355X is a compute-first design. It has 16,384 shading units, 1,024 TMUs, and 0 ROPs. It has no display outputs, no DirectX, OpenGL, or Vulkan API support, and no pixel rate. It is an OAM Module with no power connectors and a 1400 W TDP, requiring a suggested PSU of 1800 W. It uses PCIe 5.0 x16. The LX MAX is a graphics card in the conventional sense. It has 6,144 shading units, 192 TMUs, and 96 ROPs. It has 4x DisplayPort 1.4a outputs, supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. It is a Dual-slot card with a 1x 16-pin power connector, a 225 W TDP, a suggested PSU of 550 W, and uses PCIe 4.0 x16.

The shading unit count is 2.67x higher on the MI355X (16,384 versus 6,144). The TMU count is 5.33x higher (1,024 versus 192). The LX MAX has 96 ROPs, while the MI355X has none. The MI355X does not list RT cores or tensor cores; the LX MAX also does not list RT cores or tensor cores. The MI355X has no game clock listed, while the LX MAX has no base or boost clock listed. The MI355X lists a base clock of 1000 MHz and a boost clock of 2400 MHz. The LX MAX has null entries for both. Memory type differs: HBM3e versus GDDR6. Memory size differs: 288 GB versus 12 GB. Bus width differs: 8192 bit versus 192 bit.

The Verdict

The data shows two devices with opposite design goals. The AMD Instinct MI355X is a server accelerator. Its 1400 W TDP, OAM Module form factor, lack of display outputs, and absence of graphics API support confirm it is not meant for desktop use. The Lisuan Tech LX MAX is a conventional graphics card with display outputs, a Dual-slot form factor, a 225 W TDP, and full DirectX 12 Ultimate and Vulkan 1.3 support. Any user needing to render frames to a screen must choose the LX MAX; the MI355X cannot output video.

For compute workloads, the MI355X leads on every measured compute metric in the database. It offers 3.2x the FP32 throughput, 1.6x the FP16 throughput, 6.4x the texture rate, and 18.9x the memory bandwidth. It also has 2.67x the shading units and 5.33x the TMUs. The MI355X uses a 3 nm process versus 6 nm, and it has a far larger memory pool of 288 GB versus 12 GB. The MI355X is the clear choice for memory-bound or compute-bound tasks such as large model inference or training, given the recorded specifications. The LX MAX is the clear choice for any workload that requires rasterization, pixel output, or standard graphics APIs. The MI355X's FP16 1:1 ratio means it does not double throughput for half precision, while the LX MAX's 2:1 ratio means it does; the LX MAX is more efficient per FLOP in FP16 relative to its FP32. However, the absolute FP16 number for the MI355X is still higher.

The production status for the LX MAX is listed as Active. The MI355X has no production status listed. The release dates differ: the MI355X is dated 2025-06-11, and the LX MAX is dated 2026-03-16. The MI355X has no successor listed, and the LX MAX has no predecessor or successor listed. The database shows no benchmark results, so the verdict rests entirely on specification analysis. The MI355X is the compute monster; the LX MAX is the graphics card.

Specification Differences

The following fields differ between the two parts, as recorded in the database:

• Manufacturer: AMD versus Unknown.
• Chip: MI350 256CU versus 7G106.
• Architecture: CDNA 4.0 versus TrueGPU.
• Generation: Instinct (MIx) versus 7G100.
• Process node: 3 nm versus 6 nm.
• Transistors: 185,000 million versus unknown.
• Die size: 2380 mm² versus unknown.
• Transistor density: 77.7M / mm² versus null.
• Base clock: 1000 MHz versus null.
• Boost clock: 2400 MHz versus null.
• Memory clock: 2000 MHz 8 Gbps effective versus 2250 MHz 18 Gbps effective.
• Memory size: 288 GB versus 12 GB.
• Memory type: HBM3e versus GDDR6.
• Memory bus width: 8192 bit versus 192 bit.
• Memory bandwidth: 8.19 TB/s versus 432.0 GB/s.
• Shading units: 16,384 versus 6,144.
• TMUs: 1,024 versus 192.
• ROPs: 0 versus 96.
• Pixel rate: 0 MPixel/s versus 192.0 GPixel/s.
• Texture rate: 2,457.6 GTexel/s versus 384.0 GTexel/s.
• FP32: 78.64 TFLOPS versus 24.58 TFLOPS.
• FP16: 78.64 TFLOPS (1:1) versus 49.15 TFLOPS (2:1).
• TDP: 1400 W versus 225 W.
• Slot width: OAM Module versus Dual-slot.
• Power connectors: None versus 1x 16-pin.
• Suggested PSU: 1800 W versus 550 W.
• Bus interface: PCIe 5.0 x16 versus PCIe 4.0 x16.
• Display outputs: No outputs versus 4x DisplayPort 1.4a.
• DirectX: N/A versus 12 Ultimate (12_2).
• OpenGL: N/A versus 4.6.
• Vulkan: N/A versus 1.3.
• Dimensions: 102 mm length, 165 mm width versus 248 mm length, 118 mm height, 48 mm width.
• Production status: null versus Active.
• Release date: 2025-06-11 versus 2026-03-16.
• Predecessor: Radeon Instinct versus null.

FAQ

Q: Which card has more memory bandwidth?

A: The AMD Instinct MI355X lists 8.19 TB/s of bandwidth from HBM3e on an 8192-bit bus. The Lisuan Tech LX MAX lists 432.0 GB/s from GDDR6 on a 192-bit bus. The MI355X provides 18.9x the bandwidth.

Q: Does the AMD Instinct MI355X support display output?

A: No. The MI355X lists "No outputs" for display outputs and has a pixel rate of 0 MPixel/s. It also has no DirectX, OpenGL, or Vulkan API support. The Lisuan Tech LX MAX has 4x DisplayPort 1.4a outputs and supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.3.

Q: What is the FP32 performance difference?

A: The MI355X lists FP32 at 78.64 TFLOPS, while the LX MAX lists FP32 at 24.58 TFLOPS. The MI355X is 3.2x faster in FP32 throughput.

Q: Which card uses a smaller manufacturing process?

A: The MI355X is built on a 3 nm process by TSMC. The LX MAX is built on a 6 nm process by TSMC. The MI355X also has a larger die at 2380 mm², while the LX MAX's die size is unknown.

Q: What is the memory capacity difference?

A: The MI355X has 288 GB of HBM3e memory. The LX MAX has 12 GB of GDDR6 memory. The MI355X offers 24x the memory capacity.

Q: Which card is designed for rasterization?

A: The LX MAX is designed for rasterization. It has 96 ROPs, a pixel rate of 192.0 GPixel/s, and display outputs. The MI355X has 0 ROPs and a pixel rate of 0 MPixel/s, indicating no rasterization capability.

Where Each One Wins

AMD Instinct MI355X wins on: FP32 throughput (78.64 TFLOPS versus 24.58 TFLOPS), FP16 throughput (78.64 TFLOPS versus 49.15 TFLOPS), texture rate (2,457.6 GTexel/s versus 384.0 GTexel/s), memory bandwidth (8.19 TB/s versus 432.0 GB/s), memory capacity (288 GB versus 12 GB), shading units (16,384 versus 6,144), TMUs (1,024 versus 192), process node (3 nm versus 6 nm), bus interface (PCIe 5.0 x16 versus PCIe 4.0 x16), and memory bus width (8192 bit versus 192 bit). It also has a higher TDP allowance (1400 W versus 225 W) and requires a larger suggested PSU (1800 W versus 550 W), which confirms it is a high-power compute accelerator.

Lisuan Tech LX MAX wins on: ROPs (96 versus 0), pixel rate (192.0 GPixel/s versus 0 MPixel/s), display outputs (4x DisplayPort 1.4a versus none), graphics API support (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.3 versus N/A for all), power connector availability (1x 16-pin versus none), lower TDP (225 W versus 1400 W), lower suggested PSU (550 W versus 1800 W), production status (Active versus null), and a higher memory clock per pin (2250 MHz 18 Gbps effective versus 2000 MHz 8 Gbps effective). The LX MAX also has a dual-slot form factor versus the OAM Module, making it physically installable in a standard desktop chassis. The MI355X has no power connectors and no display outputs, so it cannot function as a consumer graphics card.