AMD Instinct MI300 vs Lisuan Tech LX PRO Comparison

Where Each One Wins

The recorded data places the AMD Instinct MI300 and the Lisuan Tech LX PRO in fundamentally different performance categories, with the MI300 dominating raw compute throughput while the LX PRO claims all display and graphics pipeline functions. The MI300 wins on sheer processing power: its FP32 throughput of 47.87 TFLOPS is nearly double the LX PRO's 24.58 TFLOPS, and its FP16 output of 47.87 TFLOPS (1:1) is comparable to the LX PRO's 49.15 TFLOPS (2:1) but achieved with a different ratio structure. The MI300 also leads decisively in memory capacity and bandwidth, with 128 GB of HBM3 delivering 5.32 TB/s against the LX PRO's 24 GB of GDDR6 at 432.0 GB/s. This makes the MI300 the clear choice for workloads that require massive data sets resident on the GPU, such as large-scale inference or dense matrix operations.

The LX PRO counters with capabilities the MI300 simply does not possess. The MI300 has no display outputs, no pixel rate worth mentioning (0 MPixel/s), and no graphics API support (DirectX, OpenGL, and Vulkan all register as N/A). The LX PRO, by contrast, provides 4x DisplayPort 1.4a outputs, a pixel rate of 192.0 GPixel/s, and full API compatibility including DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. The LX PRO also outputs its texture rate at 384.0 GTexel/s, while the MI300 delivers 1,496.0 GTexel/s, a 3.9x advantage. The ROP count tells a similar story: the MI300 has zero ROPs, while the LX PRO has 96, meaning the LX PRO is the only one of the two that can rasterize frames for display.

The LX PRO's 225 W TDP and 550 W suggested PSU stand in contrast to the MI300's 600 W TDP and 1000 W suggested PSU, which reflects the MI300's accelerator orientation. The LX PRO is a dual-slot card with a 16-pin connector and 4 display outputs, built for a standard workstation or consumer slot. The MI300 uses two 8-pin connectors, has no display outputs, and is 267 mm long versus the LX PRO's 248 mm. The use-case split is therefore clean: the MI300 wins every compute-heavy metric, while the LX PRO wins every graphics, display, and rasterization metric.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The AMD Instinct MI300 delivers 47.87 TFLOPS FP32, which is 94.8% higher than the Lisuan Tech LX PRO's 24.58 TFLOPS.

Q: Can the AMD Instinct MI300 drive displays?

A: No. The MI300 has no display outputs, a pixel rate of 0 MPixel/s, and no DirectX, OpenGL, or Vulkan support. The Lisuan Tech LX PRO has 4x DisplayPort 1.4a outputs and supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3.

Q: How do the memory systems compare?

A: The MI300 uses 128 GB of HBM3 on an 8192-bit bus for 5.32 TB/s bandwidth. The LX PRO uses 24 GB of GDDR6 on a 192-bit bus for 432.0 GB/s bandwidth. The MI300 offers 5.3x the capacity and 12.3x the bandwidth.

Q: What are the power requirements for each card?

A: The MI300 has a 600 W TDP and a suggested PSU of 1000 W with two 8-pin connectors. The LX PRO has a 225 W TDP and a suggested PSU of 550 W with a single 16-pin connector.

Q: Which card supports modern graphics APIs?

A: Only the LX PRO supports graphics APIs: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3. The MI300 lists N/A for all three APIs.

Q: What manufacturing processes are used?

A: The MI300 is built on a 5 nm TSMC process with 153,000 million transistors on a 1017 mm² die. The LX PRO is built on a 6 nm TSMC process with unspecified transistor count and die size.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries for these two parts, but the specification-level measurements provide a clear quantitative comparison across every major compute metric. The largest MI300 advantage appears in memory bandwidth: 5.32 TB/s versus 432.0 GB/s, a 12.3x gap. Texture rate follows at 1,496.0 GTexel/s versus 384.0 GTexel/s, a 3.9x gap. FP32 compute shows a 1.95x gap (47.87 TFLOPS versus 24.58 TFLOPS). Shading unit count favors the MI300 at 14,080 units versus 6,144, a 2.3x difference. TMU count is 880 versus 192, a 4.6x gap. Memory bus width is 8192 bit versus 192 bit, a 42.7x difference, which explains the bandwidth disparity.

The LX PRO's wins are concentrated in display and rasterization. Pixel rate is 192.0 GPixel/s versus 0 MPixel/s, an infinite advantage for the LX PRO in practical terms. ROP count is 96 versus 0. The LX PRO also leads in memory clock: 2250 MHz with 18 Gbps effective transfer versus the MI300's 1300 MHz with 5.2 Gbps effective, though the MI300's far wider bus more than compensates. FP16 compute is the only near-parity metric: the LX PRO posts 49.15 TFLOPS (2:1) against the MI300's 47.87 TFLOPS (1:1), a 2.7% edge for the LX PRO. The MI300's 1:1 FP16 ratio means it does not trade precision for throughput, while the LX PRO's 2:1 ratio indicates a packed execution path.

The power efficiency comparison is also notable. The LX PRO achieves 24.58 TFLOPS FP32 within a 225 W TDP, yielding 0.109 TFLOPS per watt. The MI300 achieves 47.87 TFLOPS within 600 W, yielding 0.080 TFLOPS per watt. The LX PRO is therefore 36% more efficient in FP32 per watt, despite delivering less total compute. For FP16, the LX PRO delivers 49.15 TFLOPS at 225 W (0.218 TFLOPS per watt) versus the MI300's 47.87 TFLOPS at 600 W (0.080 TFLOPS per watt), a 2.7x efficiency advantage for the LX PRO.

Specification Differences

The two cards diverge on nearly every measurable specification. Process node: 5 nm for the MI300 versus 6 nm for the LX PRO, both TSMC. The MI300 packs 153,000 million transistors onto a 1017 mm² die, while the LX PRO's transistor count and die size are both recorded as unknown. Transistor density for the MI300 is 150.4M per mm²; the LX PRO has no recorded density figure.

Base and boost clocks exist only for the MI300 (1000 MHz base, 1700 MHz boost); the LX PRO has no recorded core clock values. Memory clock differs: MI300 runs at 1300 MHz with 5.2 Gbps effective, LX PRO at 2250 MHz with 18 Gbps effective. Memory type, size, bus width, and bandwidth all differ as detailed above. Shading units: 14,080 versus 6,144. TMUs: 880 versus 192. ROPs: 0 versus 96. Pixel rate: 0 MPixel/s versus 192.0 GPixel/s. Texture rate: 1,496.0 GTexel/s versus 384.0 GTexel/s. FP32: 47.87 TFLOPS versus 24.58 TFLOPS. FP16: 47.87 TFLOPS (1:1) versus 49.15 TFLOPS (2:1).

TDP: 600 W versus 225 W. Power connectors: 2x 8-pin versus 1x 16-pin. Suggested PSU: 1000 W versus 550 W. Bus interface: PCIe 5.0 x16 versus PCIe 4.0 x16. Display outputs: none versus 4x DisplayPort 1.4a. API support: all N/A versus DirectX 12 Ultimate (12_2), OpenGL 4.6, Vulkan 1.3. Dimensions: MI300 267 mm length and 111 mm height; LX PRO 248 mm length, 118 mm height, 48 mm width. Slot width: LX PRO is dual-slot; MI300 has no recorded slot width. Production status: LX PRO is active; MI300 has no recorded status. Release dates: MI300 released 2023-01-03, LX PRO released 2026-03-16. Both cards have no launch MSRP in the database.

Architecture Differences

The MI300 uses AMD's CDNA 3.0 architecture on the Aqua Vanjaram chip, part of the Instinct (MIx) generation. CDNA 3.0 is a compute-optimized design, which explains the absence of ROPs, display outputs, and graphics API support. The MI300's predecessor is the Radeon Instinct line. The LX PRO uses the TrueGPU architecture on the 7G105 chip, from the 7G100 generation. TrueGPU appears oriented toward conventional graphics workloads, given its rasterization pipeline, display outputs, and full DirectX 12 Ultimate support. The LX PRO has no recorded predecessor.

The MI300's 5 nm process and 153,000 million transistors reflect a large, dense compute die. The LX PRO's 6 nm process with unknown transistor count suggests a smaller, less complex chip. The MI300's 8192-bit memory bus and HBM3 stack are characteristic of accelerator-class designs that need enormous bandwidth for data-parallel workloads. The LX PRO's 192-bit bus and GDDR6 memory are typical of consumer or workstation graphics cards that balance cost and capacity against bandwidth.

The FP16 ratio difference is architecturally significant. The MI300's 1:1 FP16 to FP32 ratio means both precisions execute at the same rate, a design choice for compute workloads that require consistent throughput across precisions. The LX PRO's 2:1 ratio doubles FP16 throughput relative to FP32, a common pattern for graphics-oriented GPUs where packed half-precision operations accelerate shader effects and machine learning inference. The MI300's zero ROP count and zero pixel rate confirm it has no rasterization hardware, while the LX PRO's 96 ROPs and 192.0 GPixel/s pixel rate confirm a full graphics pipeline.

The power connector difference also reflects architecture intent. The MI300 uses two 8-pin connectors and requires a 1000 W PSU, consistent with a 600 W accelerator that lives in a server chassis. The LX PRO uses a single 16-pin connector and a 550 W PSU, consistent with a 225 W card that fits a standard desktop slot. The LX PRO's dual-slot cooler and 48 mm width further indicate a conventional add-in card, while the MI300's lack of a recorded slot width and absence of display outputs point to a passive or rack-mounted server component.

The Verdict

The data separates these two cards into distinct roles with no meaningful overlap. The AMD Instinct MI300 is a compute accelerator: it delivers 47.87 TFLOPS FP32, 5.32 TB/s memory bandwidth, and 128 GB of HBM3, but it cannot output an image, run a graphics API, or rasterize a single pixel. The Lisuan Tech LX PRO is a graphics card: it outputs to four DisplayPort 1.4a monitors, runs DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.3, and rasterizes at 192.0 GPixel/s, but its 24.58 TFLOPS FP32 and 432.0 GB/s bandwidth place it well below the MI300 in raw compute.

Any workload that needs display output, graphics API compatibility, or rasterization must use the LX PRO. Any workload that needs maximum FP32 throughput, massive memory capacity, or extreme bandwidth must use the MI300. The MI300's 12.3x bandwidth advantage and 1.95x FP32 advantage make it the stronger compute part, but its 600 W TDP and 1000 W PSU requirement mean it belongs in a server or dedicated compute node. The LX PRO's 225 W TDP and 550 W PSU requirement allow it to operate in a standard desktop environment.

The LX PRO's FP16 output of 49.15 TFLOPS (2:1) slightly exceeds the MI300's 47.87 TFLOPS (1:1), a 2.7% gap that matters only for workloads using packed half-precision operations. The MI300's FP16 is offered at a 1:1 ratio, meaning no precision trade-off. For users who need both compute and display, the database shows no single card satisfying both requirements; the choice depends entirely on whether the task ends in a rendered frame or a computed result.