AMD Steam Machine GPU vs Lisuan Tech LX ULTRA Comparison

Where Each One Wins

The recorded data shows a clear split between these two GPUs, though neither holds a benchmark win over the other in the head-to-head table, which is currently empty. The AMD Steam Machine GPU positions itself around the 50th percentile against all GPUs, while the Lisuan Tech LX ULTRA also sits at the 50th percentile. Without direct benchmark scores, the use-case split must be inferred from the architectural and specification differences in the database.

The AMD Steam Machine GPU delivers 17.56 TFLOPS of FP32 performance and 17.56 TFLOPS of FP16 performance with a 1:1 ratio. Its 8 GB of GDDR6 memory on a 128-bit bus provides 288.0 GB/s of bandwidth. The card is compact at 156 mm in length, 152 mm in height, and 162 mm in width, with a 110 W TDP and no power connectors required. This makes it suitable for small form factor console-style builds, particularly where space and power draw are constrained.

The Lisuan Tech LX ULTRA presents a different profile entirely. It offers 24.58 TFLOPS of FP32 performance and 49.15 TFLOPS of FP16 performance with a 2:1 ratio. Memory capacity jumps to 24 GB of GDDR6 on a 192-bit bus, yielding 432.0 GB/s of bandwidth. The card is a dual-slot design measuring 268 mm in length, 112 mm in height, and 40 mm in width, requiring a 550 W suggested PSU and a single 16-pin power connector. Its 225 W TDP reflects a much higher power envelope.

The FP16 advantage of the Lisuan Tech LX ULTRA is significant. With 49.15 TFLOPS versus 17.56 TFLOPS, the LX ULTRA delivers 2.8 times the half-precision throughput. This matters for workloads that leverage FP16 compute, such as certain machine learning inference tasks or applications with mixed-precision support. The AMD Steam Machine GPU matches its FP32 and FP16 rates at 1:1, meaning no extra half-precision headroom exists.

The AMD Steam Machine GPU uses the RDNA 3.0 architecture with the Navi 33 chip and the codename Hotpink Bonefish. It belongs to the Console GPU (Valve) generation. The LX ULTRA uses the TrueGPU architecture with the 7G105 chip and belongs to the 7G100 generation. Both are built on TSMC's 6 nm process node, so manufacturing technology does not differentiate them.

The AMD GPU includes 28 ray tracing cores, while the LX ULTRA lists no RT core count in the database. API support differs in Vulkan versions: the AMD card supports Vulkan 1.4, while the LX ULTRA supports Vulkan 1.3. Both support DirectX 12 Ultimate (12_2) and OpenGL 4.6.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The Lisuan Tech LX ULTRA delivers 24.58 TFLOPS of FP32 performance, compared to 17.56 TFLOPS for the AMD Steam Machine GPU. This represents a 40% advantage for the LX ULTRA in single-precision throughput.

Q: How do the memory configurations differ?

A: The AMD Steam Machine GPU has 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth. The Lisuan Tech LX ULTRA has 24 GB of GDDR6 on a 192-bit bus with 432.0 GB/s bandwidth. The LX ULTRA offers three times the memory capacity and 50% more bandwidth.

Q: What are the power requirements for each card?

A: The AMD Steam Machine GPU has a 110 W TDP and requires no power connectors. The Lisuan Tech LX ULTRA has a 225 W TDP and requires a 16-pin power connector with a 550 W suggested PSU.

Q: Which GPU supports ray tracing?

A: The AMD Steam Machine GPU includes 28 ray tracing cores. The Lisuan Tech LX ULTRA does not list ray tracing cores in the database.

Q: What is the FP16 performance difference?

A: The AMD Steam Machine GPU achieves 17.56 TFLOPS FP16 with a 1:1 ratio. The Lisuan Tech LX ULTRA achieves 49.15 TFLOPS FP16 with a 2:1 ratio, making it 2.8 times faster in half-precision workloads.

Q: How do the physical dimensions compare?

A: The AMD Steam Machine GPU measures 156 mm by 152 mm by 162 mm, while the Lisuan Tech LX ULTRA measures 268 mm by 112 mm by 40 mm. The AMD card is much shorter and wider, while the LX ULTRA is longer and slimmer.

Head-to-Head Benchmarks

The head-to-head benchmark table in the database is currently empty, with zero wins recorded for either GPU. This means no direct performance comparisons are available from recorded measurements. However, the specification data allows for calculated comparisons across several metrics.

In pixel throughput, the Lisuan Tech LX ULTRA achieves 192.0 GPixel/s against 156.8 GPixel/s for the AMD Steam Machine GPU. This gives the LX ULTRA a 22.4% advantage in rasterization fill rate. The difference stems from 96 ROPs on the LX ULTRA versus 64 ROPs on the AMD card.

Texture throughput shows a larger gap. The LX ULTRA delivers 384.0 GTexel/s compared to 274.4 GTexel/s for the AMD GPU. This 40% advantage comes from 192 TMUs on the LX ULTRA versus 112 TMUs on the AMD card, combined with the higher clock behavior implied by the FP32 figures.

Compute performance follows a similar pattern. The LX ULTRA's 24.58 TFLOPS FP32 exceeds the AMD card's 17.56 TFLOPS by 40%. In FP16, the gap widens dramatically: 49.15 TFLOPS versus 17.56 TFLOPS, a 180% advantage for the LX ULTRA due to its 2:1 FP16 ratio.

Memory bandwidth favors the LX ULTRA at 432.0 GB/s versus 288.0 GB/s, a 50% difference. The 192-bit bus versus 128-bit bus explains much of this, though both run the same 2250 MHz memory clock with 18 Gbps effective speed.

The AMD Steam Machine GPU holds advantages in other areas. It includes 28 ray tracing cores, which the LX ULTRA lacks entirely. The AMD card also supports Vulkan 1.4, a newer version than the LX ULTRA's Vulkan 1.3. The AMD GPU's 110 W TDP is less than half the LX ULTRA's 225 W TDP, and it requires no external power connectors.

Shading unit counts differ substantially: the LX ULTRA has 6144 shading units versus 1792 on the AMD card. This 3.4 times difference in shading units does not translate directly to FP32 performance because the AMD architecture likely delivers different per-shader throughput, but the raw count favors the LX ULTRA.

Specification Differences

The two GPUs differ across nearly every measurable specification in the database. Memory capacity is the most obvious split: 8 GB on the AMD Steam Machine GPU versus 24 GB on the Lisuan Tech LX ULTRA. Memory bus width also differs, with 128-bit on the AMD card and 192-bit on the LX ULTRA.

Bandwidth follows the bus width: 288.0 GB/s for the AMD GPU and 432.0 GB/s for the LX ULTRA. Both use GDDR6 memory at 2250 MHz with 18 Gbps effective speed, so the bandwidth difference comes entirely from the bus width.

Compute resources show a wide gap. The AMD card has 1792 shading units, 112 TMUs, and 64 ROPs. The LX ULTRA has 6144 shading units, 192 TMUs, and 96 ROPs. The AMD card includes 28 ray tracing cores, while the LX ULTRA lists none.

Clock speeds are only partially specified. The AMD Steam Machine GPU lists base at 1720 MHz, boost at 2450 MHz, and game at 2250 MHz. The LX ULTRA lists no base, boost, or game clocks in the database, only the memory clock of 2250 MHz.

Power specifications differ significantly. The AMD GPU has a 110 W TDP with no power connectors. The LX ULTRA has a 225 W TDP with a 16-pin power connector and a 550 W suggested PSU.

Physical dimensions are nearly opposite in shape. The AMD card is 156 mm long, 152 mm tall, and 162 mm wide, making it short but wide. The LX ULTRA is 268 mm long, 112 mm tall, and 40 mm wide, making it long but slim. The LX ULTRA is a dual-slot card, while the AMD card has no slot width listed.

Display outputs differ as well. The AMD GPU provides 1x HDMI 2.1a and 1x DisplayPort 2.1. The LX ULTRA provides 4x DisplayPort 1.4a with no HDMI output.

Bus interface is only listed for the LX ULTRA, which uses PCIe 4.0 x16. The AMD card has no bus interface specified in the database.

Architecture Differences

The AMD Steam Machine GPU uses the RDNA 3.0 architecture with the Navi 33 chip, codenamed Hotpink Bonefish. It belongs to the Console GPU (Valve) generation. The Lisuan Tech LX ULTRA uses the TrueGPU architecture with the 7G105 chip and belongs to the 7G100 generation.

Both GPUs are fabricated on TSMC's 6 nm process node. The AMD card has 13,300 million transistors on a 204 mm² die, yielding a transistor density of 65.2 million transistors per square millimeter. The LX ULTRA does not list transistor count, die size, or transistor density in the database.

The RDNA 3.0 architecture on the AMD card supports FP16 at a 1:1 ratio with FP32, meaning no dedicated half-precision doubling. The TrueGPU architecture on the LX ULTRA supports FP16 at a 2:1 ratio, doubling the FP16 throughput relative to FP32.

Ray tracing is present on the AMD card with 28 RT cores. The LX ULTRA has no RT core count recorded, suggesting either no ray tracing hardware or undisclosed specifications.

API support shows version differences. Both support DirectX 12 Ultimate (12_2) and OpenGL 4.6. The AMD card supports Vulkan 1.4, while the LX ULTRA supports Vulkan 1.3.

The AMD GPU's display outputs include HDMI 2.1a and DisplayPort 2.1, indicating newer display interface standards. The LX ULTRA uses DisplayPort 1.4a exclusively across four outputs.

Release dates differ: the AMD Steam Machine GPU was released on June 28, 2026, while the Lisuan Tech LX ULTRA was released on March 16, 2026. Both are marked as Active in production status.

The Verdict

The data indicates two GPUs with fundamentally different design priorities. The AMD Steam Machine GPU targets compact, low-power environments. Its 110 W TDP, no power connectors, and small footprint at 156 mm by 152 mm by 162 mm make it suitable for constrained spaces. The 28 ray tracing cores and Vulkan 1.4 support provide modern graphics features. The 8 GB memory capacity is modest but adequate for its likely resolution targets.

The Lisuan Tech LX ULTRA targets higher performance with fewer constraints. Its 24.58 TFLOPS FP32 and 49.15 TFLOPS FP16 represent substantial compute advantages over the AMD card. The 24 GB memory capacity and 432.0 GB/s bandwidth support larger textures and higher resolutions. The 225 W TDP and 550 W suggested PSU indicate a more demanding installation.

Benchmark results are absent from the database, so no direct performance measurements exist to confirm real-world behavior. The specification analysis shows the LX ULTRA leading in raw throughput metrics: FP32 by 40%, FP16 by 180%, texture rate by 40%, pixel rate by 22%, and bandwidth by 50%. These are large margins that would likely translate to faster frame rates in standard rendering workloads.

The AMD Steam Machine GPU counters with ray tracing support, a newer Vulkan version, and dramatically lower power consumption. The 110 W TDP versus 225 W TDP means the AMD card uses less than half the power budget. The lack of power connectors simplifies installation in compact systems.

The choice between these two depends on the target environment. The AMD Steam Machine GPU fits scenarios where power draw, physical space, and ray tracing matter. The Lisuan Tech LX ULTRA fits scenarios where compute throughput, memory capacity, and bandwidth dominate. The database records both GPUs at the 50th percentile against all GPUs, suggesting similar overall standing despite their different approaches.

The FP16 capability of the LX ULTRA at 49.15 TFLOPS is particularly notable, offering more than double the AMD card's FP16 rate. For workloads that can use mixed-precision compute, this could provide a substantial advantage. The 24 GB memory also provides headroom for large datasets or high-resolution textures that would exceed the AMD card's 8 GB capacity.

The AMD GPU's 28 ray tracing cores give it a feature that the LX ULTRA does not list. DirectX 12 Ultimate support on both cards means they share the same baseline feature set for modern games, but the AMD card adds hardware ray tracing on top of that baseline.

The physical designs tell the story clearly. The AMD card is short and wide, resembling a console-style component. The LX ULTRA is long and slim, resembling a traditional add-in board. The LX ULTRA's dual-slot design and 16-pin power connector indicate a card built for desktop towers with adequate cooling and power delivery.

The release timing shows the LX ULTRA launched first on March 16, 2026, followed by the AMD Steam Machine GPU on June 28, 2026. Both remain in active production.

Users prioritizing raw compute and memory capacity should favor the Lisuan Tech LX ULTRA based on the recorded specifications. Users prioritizing ray tracing, power efficiency, and compact dimensions should favor the AMD Steam Machine GPU. The absence of direct benchmark data leaves room for real-world performance to differ from these specification-based conclusions.