AMD Radeon PRO W7900D vs Lisuan Tech LX ULTRA Comparison

FAQ

Q: What are the two graphics cards compared in this database entry?

A: The AMD Radeon PRO W7900D and the Lisuan Tech LX ULTRA. The AMD card uses the Navi 31 chip with RDNA 3.0 architecture, while the Lisuan Tech card uses the 7G105 chip with TrueGPU architecture.

Q: How much memory does each card offer?

A: The AMD Radeon PRO W7900D features 48 GB of GDDR6 memory on a 384-bit bus, delivering 864.0 GB/s of bandwidth. The Lisuan Tech LX ULTRA offers 24 GB of GDDR6 memory on a 192-bit bus, delivering 432.0 GB/s of bandwidth. Both cards use memory clocked at 2250 MHz with 18 Gbps effective speed.

Q: Which card has a higher FP32 compute throughput?

A: The AMD Radeon PRO W7900D delivers 52.99 TFLOPS of FP32 performance, which is more than double the 24.58 TFLOPS recorded for the Lisuan Tech LX ULTRA.

Q: What are the power requirements for each card?

A: The AMD Radeon PRO W7900D has a TDP of 295 W and uses two 8-pin power connectors, with a suggested power supply of 600 W. The Lisuan Tech LX ULTRA has a TDP of 225 W and uses a single 16-pin power connector, with a suggested power supply of 550 W.

Q: What display outputs does each card provide?

A: The AMD Radeon PRO W7900D provides three DisplayPort 2.1 outputs and one mini-DisplayPort 2.1 output. The Lisuan Tech LX ULTRA provides four DisplayPort 1.4a outputs.

Q: When was each card released?

A: The AMD Radeon PRO W7900D was released on September 24, 2025. The Lisuan Tech LX ULTRA was released on March 16, 2026.

Architecture Differences

The AMD Radeon PRO W7900D and the Lisuan Tech LX ULTRA represent fundamentally different architectural approaches. The AMD card is built on the Navi 31 chip using RDNA 3.0 architecture, with the codename Plum Bonito, and belongs to the Radeon Pro Navi (Navi III Series) generation. The Lisuan Tech card uses the 7G105 chip with TrueGPU architecture and belongs to the 7G100 generation.

Manufacturing processes differ between the two cards. The AMD Radeon PRO W7900D is fabricated on a 5 nm process at TSMC, while the Lisuan Tech LX ULTRA uses a 6 nm process, also at TSMC. The AMD chip contains 57,700 million transistors on a 529 mm² die, resulting in a transistor density of 109.1M per mm². The Lisuan Tech chip's transistor count and die size are not recorded in the database.

The compute pipelines show notable structural differences. Both cards have 6144 shading units, but they diverge in other resources. The AMD card has 384 texture mapping units and 192 render output units, while the Lisuan Tech card has 192 texture mapping units and 96 render output units. The AMD card includes 96 ray tracing cores, while the Lisuan Tech card has no ray tracing cores listed. Neither card has tensor cores recorded.

Memory architecture differs substantially. The AMD Radeon PRO W7900D uses a 384-bit memory bus with 48 GB of GDDR6, while the Lisuan Tech LX ULTRA uses a 192-bit bus with 24 GB of GDDR6. Both operate at the same effective memory speed of 18 Gbps, but the wider bus on the AMD card produces significantly higher bandwidth.

API support shows both similarities and differences. Both cards support DirectX 12 Ultimate (12_2) and OpenGL 4.6. The AMD card supports Vulkan 1.4, while the Lisuan Tech card supports Vulkan 1.3. The AMD card also supports DisplayPort 2.1 outputs, while the Lisuan Tech card is limited to DisplayPort 1.4a.

The physical designs also differ. The AMD Radeon PRO W7900D is a triple-slot card measuring 280 mm in length, 110 mm in height, and 51 mm in width. The Lisuan Tech LX ULTRA is a dual-slot card measuring 268 mm in length, 112 mm in height, and 40 mm in width. The AMD card uses two 8-pin power connectors, while the Lisuan Tech card uses a single 16-pin connector.

Where Each One Wins

The benchmark data divides the two cards into distinct usage profiles based on their recorded specifications.

The AMD Radeon PRO W7900D holds advantages in raw compute throughput. Its FP32 performance of 52.99 TFLOPS positions it for workloads that depend on single-precision floating-point calculations. The pixel rate of 414.0 GPixel/s and texture rate of 827.9 GTexel/s indicate strong fill-rate capabilities. The 48 GB memory capacity and 864.0 GB/s bandwidth provide substantial headroom for large datasets that exceed the memory capacity of the Lisuan Tech card. The inclusion of 96 ray tracing cores gives the AMD card a feature that the Lisuan Tech card lacks entirely.

The Lisuan Tech LX ULTRA shows a different strength profile. Its FP16 performance of 49.15 TFLOPS exceeds its FP32 output of 24.58 TFLOPS, indicating a 2:1 ratio that suggests specialized handling for half-precision workloads. The card achieves this with a lower TDP of 225 W compared to the AMD card's 295 W. The dual-slot design and smaller physical footprint make the Lisuan Tech card easier to accommodate in space-constrained systems. Its four DisplayPort 1.4a outputs match or exceed the connector count of the AMD card's three DisplayPort 2.1 outputs plus one mini-DisplayPort 2.1.

The AMD card's production status is listed as Active with a predecessor of Radeon Pro Vega. The Lisuan Tech card also has Active production status but has no recorded predecessor or successor. Both cards share a PCIe 4.0 x16 bus interface.

Specification Differences

The recorded specifications show clear divergence between the two cards across nearly every measurable category.

The AMD Radeon PRO W7900D operates at a base clock of 1327 MHz and a boost clock of 2156 MHz, while the Lisuan Tech LX ULTRA has no base or boost clock recorded in the database. Both cards run their memory at 2250 MHz with 18 Gbps effective speed.

Memory capacity differs by a factor of two: the AMD card has 48 GB, the Lisuan Tech card has 24 GB. The memory bus width also differs by a factor of two: 384 bit versus 192 bit. This produces bandwidth figures of 864.0 GB/s for the AMD card and 432.0 GB/s for the Lisuan Tech card.

Compute resources show mixed relationships. Both cards have 6144 shading units. The AMD card has 384 TMUs versus 192 on the Lisuan Tech card, and 192 ROPs versus 96. The AMD card has 96 ray tracing cores, while the Lisuan Tech card has none recorded.

Performance rates differ substantially. The AMD card delivers 414.0 GPixel/s pixel rate and 827.9 GTexel/s texture rate. The Lisuan Tech card delivers 192.0 GPixel/s pixel rate and 384.0 GTexel/s texture rate. FP32 performance is 52.99 TFLOPS versus 24.58 TFLOPS. FP16 performance is 52.99 TFLOPS with a 1:1 ratio for the AMD card versus 49.15 TFLOPS with a 2:1 ratio for the Lisuan Tech card.

Power and physical specifications also differ. The AMD card has a TDP of 295 W, uses two 8-pin connectors, and requires a 600 W suggested power supply. The Lisuan Tech card has a TDP of 225 W, uses one 16-pin connector, and requires a 550 W suggested power supply. The AMD card occupies a triple-slot width, while the Lisuan Tech card occupies a dual-slot width. The AMD card measures 280 mm by 110 mm by 51 mm, while the Lisuan Tech card measures 268 mm by 112 mm by 40 mm.

The manufacturing process differs: 5 nm for the AMD card versus 6 nm for the Lisuan Tech card. The AMD chip has 57,700 million transistors on a 529 mm² die, while the Lisuan Tech chip has unknown transistor count and die size. Display outputs differ: the AMD card has three DisplayPort 2.1 ports plus one mini-DisplayPort 2.1, while the Lisuan Tech card has four DisplayPort 1.4a ports. Vulkan support differs: 1.4 for AMD versus 1.3 for Lisuan Tech.

Head-to-Head Benchmarks

The database contains no recorded head-to-head benchmark runs between these two cards, and neither card has individual benchmark scores or nearest rival data populated. The analysis therefore relies on the specification-derived performance rates recorded for each card.

The largest recorded advantage for the AMD Radeon PRO W7900D appears in FP32 compute. The AMD card delivers 52.99 TFLOPS, which is 2.16 times the 24.58 TFLOPS of the Lisuan Tech LX ULTRA. This gap suggests that workloads relying on single-precision floating-point math will see substantially higher throughput on the AMD card.

Pixel fill rate shows a similar ratio. The AMD card processes 414.0 GPixel/s, while the Lisuan Tech card processes 192.0 GPixel/s. The AMD card is 2.16 times faster in this metric. Texture fill rate follows the same pattern: 827.9 GTexel/s versus 384.0 GTexel/s, again a 2.16 times advantage for the AMD card. These ratios align with the doubling of TMUs and ROPs on the AMD card.

Memory bandwidth presents a clear separation. The AMD card's 864.0 GB/s is exactly twice the 432.0 GB/s of the Lisuan Tech card, matching the doubling of both memory capacity and bus width. Memory-intensive workloads that scale with bandwidth will favor the AMD card.

The FP16 comparison is closer. The AMD card produces 52.99 TFLOPS with a 1:1 FP16 to FP32 ratio. The Lisuan Tech card produces 49.15 TFLOPS with a 2:1 ratio. The AMD card is ahead by 3.84 TFLOPS, but the margin is much smaller than in FP32. This suggests the Lisuan Tech card dedicates more of its silicon to half-precision operations, narrowing the gap in FP16-heavy workloads.

Ray tracing capability represents a categorical difference. The AMD card has 96 ray tracing cores, while the Lisuan Tech card has none recorded. Any workload that uses ray tracing will only run on the AMD card.

The Lisuan Tech card shows advantages in efficiency-oriented metrics. Its TDP of 225 W is 70 W lower than the AMD card's 295 W. The FP16 to FP32 ratio of 2:1 indicates an architectural focus on half-precision throughput that partially compensates for the lower absolute compute rates.

The Verdict

The recorded data points to distinct roles for each card. The AMD Radeon PRO W7900D carries advantages in nearly every absolute performance metric: FP32 compute, pixel fill rate, texture fill rate, memory capacity, memory bandwidth, and ray tracing capability. The 48 GB memory configuration and 864.0 GB/s bandwidth position it for large-scale compute tasks where dataset size and memory throughput are limiting factors. The 96 ray tracing cores add a capability that the Lisuan Tech card cannot match.

The Lisuan Tech LX ULTRA presents a different trade-off. Its FP16 output of 49.15 TFLOPS approaches the AMD card's 52.99 TFLOPS, and it achieves this with a 225 W TDP compared to 295 W. The dual-slot design and shorter 268 mm length make it less demanding on chassis space. The 24 GB memory capacity and 432.0 GB/s bandwidth are half of the AMD card's figures, which will constrain workloads with large memory footprints.

The choice between these cards depends on workload requirements. Applications that demand maximum FP32 throughput, high fill rates, large memory capacity, or ray tracing support point to the AMD Radeon PRO W7900D. Workloads that prioritize half-precision compute, lower power draw, or a smaller physical footprint point to the Lisuan Tech LX ULTRA. The absence of recorded benchmark scores and nearest rival data means these conclusions derive from the specification-level rates in the database rather than observed application performance.