AMD Steam Deck OLED GPU vs Lisuan Tech LX ULTRA Comparison

Head-to-Head Benchmarks

The recorded data contains no direct benchmark comparisons between the AMD Steam Deck OLED GPU and the Lisuan Tech LX ULTRA. Both entries show an average benchmark score of zero, and the nearest rivals lists are empty. The percentile versus all GPUs is identical for both, at the 50th percentile. Without measured scores, the analysis must rely entirely on the architectural and specification data recorded in the database.

The most decisive difference between the two lies in raw compute output. The Lisuan Tech LX ULTRA delivers 24.58 TFLOPS of FP32 performance, while the AMD Steam Deck OLED GPU produces 1.638 TFLOPS. That places the LX ULTRA at approximately 15 times the FP32 throughput of the Steam Deck part. The FP16 figures follow the same pattern: 49.15 TFLOPS for the LX ULTRA versus 3.277 TFLOPS for the AMD chip. These are the largest gaps in the entire dataset, and they define the performance tier separation.

Memory bandwidth tells a similar story. The LX ULTRA reaches 432.0 GB/s across a 192-bit bus, using 24 GB of GDDR6. The Steam Deck OLED GPU has 16 GB of LPDDR5 on a 128-bit bus, delivering 176.0 GB/s. The bandwidth advantage for the LX ULTRA is roughly 2.45 times the Steam Deck figure. This matters for texture-heavy workloads and high-resolution rendering, where memory throughput often becomes the limiting factor.

Pixel and texture rates reinforce the hierarchy. The LX ULTRA records 192.0 GPixel/s and 384.0 GTexel/s. The Steam Deck OLED GPU manages 25.60 GPixel/s and 51.20 GTexel/s. The LX ULTRA is roughly 7.5 times faster in pixel fill and exactly 7.5 times faster in texture fill. These ratios track the shading unit counts: 6144 versus 512, and TMU counts of 192 versus 32.

The reverse direction, where the Steam Deck chip holds an advantage, is far narrower. The AMD part has a lower power draw at 15 W versus 225 W for the LX ULTRA. That is a 15-fold difference in thermal design power. The Steam Deck OLED GPU also carries a lower memory clock in raw MHz terms, 1375 MHz versus 2250 MHz, but the LX ULTRA's effective data rate of 18 Gbps versus 11 Gbps reflects the GDDR6 implementation. Neither part has any recorded win in the head-to-head benchmark array, as that array is empty.

FAQ

Q: Which GPU has more shading units?

A: The Lisuan Tech LX ULTRA has 6144 shading units, while the AMD Steam Deck OLED GPU has 512 shading units.

Q: How does memory capacity compare between the two?

A: The LX ULTRA ships with 24 GB of GDDR6 memory on a 192-bit bus. The Steam Deck OLED GPU has 16 GB of LPDDR5 on a 128-bit bus.

Q: What is the bandwidth difference?

A: The LX ULTRA provides 432.0 GB/s, which is 2.45 times the 176.0 GB/s of the Steam Deck OLED GPU.

Q: Are both GPUs on the same manufacturing process?

A: Yes, both use a 6 nm process from TSMC. The Steam Deck OLED GPU is built around the Sephiroth chip, while the LX ULTRA uses the 7G105 chip.

Q: Do both support the same graphics APIs?

A: Yes, both list DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.3 in the database.

Q: Which GPU has the higher pixel fill rate?

A: The LX ULTRA records 192.0 GPixel/s, versus 25.60 GPixel/s for the Steam Deck OLED GPU.

Architecture Differences

The two GPUs come from fundamentally different design philosophies. The AMD Steam Deck OLED GPU uses the RDNA 2.0 architecture, a known console-grade design from AMD. The chip is called Sephiroth, and it belongs to the Console GPU generation under Valve. The Lisuan Tech LX ULTRA uses an architecture labeled TrueGPU, with the chip designation 7G105, belonging to the 7G100 generation.

Both are fabricated on a 6 nm process at TSMC. The AMD part has a transistor count of 2,400 million on a die size of 131 mm², giving a transistor density of 18.3M per mm². The LX ULTRA's transistor count and die size are recorded as unknown, so no density comparison is possible from the data.

The compute architecture diverges sharply. The Steam Deck OLED GPU has 8 ray tracing cores, while the LX ULTRA lists no ray tracing cores in the database. The AMD part also has no tensor cores, and neither GPU lists tensor core counts. The LX ULTRA compensates with far larger fixed-function units: 192 texture mapping units and 96 raster operation units, compared to 32 TMUs and 16 ROPs on the Steam Deck chip.

Clock behavior differs as well. The Steam Deck OLED GPU has a base clock of 1000 MHz and a boost clock of 1600 MHz. The LX ULTRA has no base or boost clock recorded. Its memory runs at 2250 MHz with 18 Gbps effective, while the AMD part's memory runs at 1375 MHz with 11 Gbps effective.

Power delivery and physical design reflect the performance gap. The LX ULTRA is a dual-slot card with a 16-pin power connector and a suggested PSU of 550 W. It draws 225 W under the recorded TDP. The Steam Deck OLED GPU is a 15 W part with a single USB Type-C display output. The LX ULTRA offers four DisplayPort 1.4a outputs. The AMD chip offers one USB Type-C output.

Dimensions also separate the two. The Steam Deck OLED GPU measures 298 mm in length, 117 mm in height, and 49 mm in width. The LX ULTRA is 268 mm long, 112 mm tall, and 40 mm wide. Despite the LX ULTRA being physically smaller in every dimension, it consumes 15 times the power and delivers far higher throughput.

The production status for both is marked Active. Release dates differ: the Steam Deck OLED GPU launched in November 2023, while the LX ULTRA is dated March 2026. Neither has a predecessor or successor recorded in the database.

The Verdict

The data separates these two GPUs into entirely different performance classes. The Lisuan Tech LX ULTRA is the clear compute leader, with 24.58 TFLOPS of FP32 performance, 432.0 GB/s of bandwidth, and 24 GB of memory. Its pixel rate of 192.0 GPixel/s and texture rate of 384.0 GTexel/s place it far above the Steam Deck OLED GPU in every throughput metric recorded.

The AMD Steam Deck OLED GPU is a low-power mobile part. Its 15 W TDP and 16 GB of LPDDR5 memory suit a portable console context. The FP32 output of 1.638 TFLOPS and bandwidth of 176.0 GB/s are modest, but the power draw is only one-fifteenth of the LX ULTRA's 225 W. The Steam Deck chip also has 8 ray tracing cores, a feature the LX ULTRA lacks in the recorded data.

For users prioritizing raw rendering performance, memory capacity, and bandwidth, the LX ULTRA is the only choice from the recorded specifications. For users prioritizing low power consumption and integrated ray tracing support, the Steam Deck OLED GPU holds the advantage. Both share the same API support and manufacturing node, so software compatibility is not a differentiator. The percentile ranking is identical at 50 for both, indicating the database places them at the same tier overall, but the specification sheet shows a massive gap in absolute capability.

The LX ULTRA is a desktop-class add-in card with a dual-slot cooler and a 16-pin power connector. The Steam Deck OLED GPU is an embedded console chip with a single USB Type-C output. The form factor and power envelope alone would dictate different use cases. There is no scenario in the data where the Steam Deck part matches the LX ULTRA on throughput, and no scenario where the LX ULTRA matches the Steam Deck part on efficiency.

Specification Differences

The following fields differ between the AMD Steam Deck OLED GPU and the Lisuan Tech LX ULTRA, based solely on the database records.

Chip: Sephiroth versus 7G105

Architecture: RDNA 2.0 versus TrueGPU

Generation: Console GPU (Valve) versus 7G100

Transistors: 2,400 million versus unknown

Die size: 131 mm² versus unknown

Transistor density: 18.3M per mm² versus no recorded value

Base clock: 1000 MHz versus no recorded value

Boost clock: 1600 MHz versus no recorded value

Memory clock: 1375 MHz, 11 Gbps effective versus 2250 MHz, 18 Gbps effective

Memory size: 16 GB versus 24 GB

Memory type: LPDDR5 versus GDDR6

Memory bus: 128 bit versus 192 bit

Memory bandwidth: 176.0 GB/s versus 432.0 GB/s

Shading units: 512 versus 6144

Texture mapping units: 32 versus 192

Raster operation units: 16 versus 96

Ray tracing cores: 8 versus no recorded value

Pixel rate: 25.60 GPixel/s versus 192.0 GPixel/s

Texture rate: 51.20 GTexel/s versus 384.0 GTexel/s

FP32 performance: 1.638 TFLOPS versus 24.58 TFLOPS

FP16 performance: 3.277 TFLOPS (2:1) versus 49.15 TFLOPS (2:1)

TDP: 15 W versus 225 W

Slot width: no recorded value versus dual-slot

Power connectors: no recorded value versus 1x 16-pin

Suggested PSU: no recorded value versus 550 W

Bus interface: no recorded value versus PCIe 4.0 x16

Display outputs: 1x USB Type-C versus 4x DisplayPort 1.4a

Dimensions: 298 mm x 117 mm x 49 mm versus 268 mm x 112 mm x 40 mm

Release date: November 2023 versus March 2026

Fields that match include the 6 nm TSMC process, DirectX 12 Ultimate (12_2), OpenGL 4.6, Vulkan 1.3, and Active production status. The manufacturer is AMD for the Steam Deck part, while the LX ULTRA lists an unknown manufacturer. Both share the same 50th percentile rank against all GPUs, and both have an average benchmark score of zero in the database.