AMD Radeon RX 7800 XT vs AMD Steam Machine GPU Comparison

AMD Radeon RX 7800 XT vs AMD Steam Machine GPU: the recorded data presents a direct architectural comparison between a retail desktop graphics card and a console-oriented GPU, both built on RDNA 3.0. The database contains no head-to-head benchmark results for these two units, and the Steam Machine GPU has no individual benchmark scores recorded. The analysis below relies on the specification differences and the RX 7800 XT's measured performance profile against its nearest rivals to contextualize what the hardware differences imply.

Head-to-Head Benchmarks

The database lists no direct head-to-head benchmark scores for the AMD Radeon RX 7800 XT and the AMD Steam Machine GPU. The headToHeadBenchmarks array is empty, and winsA and winsB are both zero. Consequently, there is no measured performance delta between these two specific products in any workload.

For the RX 7800 XT, the database records a set of standalone benchmark scores. In 3DMark Steel Nomad DX12, the RX 7800 XT scores 4157 points. Geekbench OpenCL returns 18290 points, while Geekbench Vulkan returns 54228 points. Passmark results include DirectX 10 at 121, DirectX 11 at 249, DirectX 12 at 93, DirectX 9 at 304, G2D at 1177, G3D at 24176, and GPU Compute at 13473. The average benchmark score across these tests is 11627 points, placing the RX 7800 XT at the 51st percentile among all GPUs in the database.

The Steam Machine GPU has an empty benchmarks array, an average benchmark score of 0, and no nearest rivals listed. Its percentileVsAllGpus is 50, which is the default position for an unmeasured product. The data cannot confirm any single benchmark win for either product, because no comparative measurements exist. What the data does confirm is the RX 7800 XT's position relative to its nearest recorded rivals: the NVIDIA GeForce GTX 1660 averages 11680 points, which is 0.5% above the RX 7800 XT's average. The AMD Radeon Pro 5500M averages 11528 points, placing it 0.9% below the RX 7800 XT. The NVIDIA Tesla K20c averages 11479 points, 1.3% below. The AMD Radeon RX 6500 XT averages 11842 points, which is 1.8% above the RX 7800 XT. These deltas are small, indicating that the RX 7800 XT's average score sits in a tightly clustered band around these older or lower-tier products.

The absence of Steam Machine GPU benchmarks means the database cannot calculate any comparative advantage. The only measurable performance data belongs to the RX 7800 XT, and that data shows a consistent, if unspectacular, position near the 50th percentile. The Steam Machine GPU's 50th percentile is a placeholder, not a measurement.

FAQ

Q: Does the database show any benchmark results for the AMD Steam Machine GPU?

A: No. The Steam Machine GPU has an empty benchmarks array, an average benchmark score of 0, and no nearest rivals. The database records no measured performance for this product.

Q: What is the RX 7800 XT's average benchmark score and percentile rank?

A: The RX 7800 XT has an average benchmark score of 11627 and sits at the 51st percentile among all GPUs in the database.

Q: How does the RX 7800 XT compare to its nearest rival, the NVIDIA GeForce GTX 1660?

A: The GTX 1660 has an average score of 11680, which is 0.5% higher than the RX 7800 XT's 11627. The difference is minimal, less than one percentage point.

Q: What is the difference in process node between the two GPUs?

A: The RX 7800 XT is fabricated on a 5 nm process, while the Steam Machine GPU is fabricated on a 6 nm process. Both are produced by TSMC.

Q: What are the transistor counts for each chip?

A: The RX 7800 XT's Navi 32 chip contains 28,100 million transistors on a 346 mm² die. The Steam Machine GPU's Navi 33 chip contains 13,300 million transistors on a 204 mm² die.

Q: What is the memory configuration difference?

A: The RX 7800 XT uses 16 GB of GDDR6 memory on a 256-bit bus with 624.1 GB/s bandwidth. The Steam Machine GPU uses 8 GB of GDDR6 memory on a 128-bit bus with 288.0 GB/s bandwidth.

The Verdict

Based strictly on the recorded data, the RX 7800 XT is the only product with measurable performance. Its average benchmark score of 11627 confirms it operates in a specific performance tier, one that places it within 1.8% of the AMD Radeon RX 6500 XT and 0.5% of the NVIDIA GeForce GTX 1660. The Steam Machine GPU has no recorded scores, so the database provides no evidence of its actual performance level.

For a user comparing these two products, the data supports choosing the RX 7800 XT if measured performance is the criterion. The RX 7800 XT also offers more memory (16 GB versus 8 GB), a wider memory bus (256-bit versus 128-bit), more shading units (3840 versus 1792), more TMUs (240 versus 112), more ROPs (96 versus 64), and more ray tracing cores (60 versus 28). The RX 7800 XT has a higher FP32 throughput of 37.32 TFLOPS compared to 17.56 TFLOPS. The Steam Machine GPU has no benchmark scores, no launch MSRP, and no nearest rivals, making it impossible to position it within the database's performance hierarchy.

However, the Steam Machine GPU has a lower TDP of 110 W versus 263 W, and it uses no external power connectors, whereas the RX 7800 XT requires 2x 8-pin connectors. The Steam Machine GPU also has a smaller physical footprint: 156 mm by 152 mm by 162 mm versus 267 mm by 111 mm by 50 mm. If power draw and size are the only considerations, the Steam Machine GPU is the lighter option on paper, but the data provides no evidence of its gaming performance.

Specification Differences

The two GPUs differ across nearly every specification field. The RX 7800 XT uses the Navi 32 chip, while the Steam Machine GPU uses Navi 33. The process node differs: 5 nm for the RX 7800 XT, 6 nm for the Steam Machine GPU. Transistor counts are 28,100 million versus 13,300 million, and die sizes are 346 mm² versus 204 mm². Transistor density is 81.2M per mm² for the RX 7800 XT and 65.2M per mm² for the Steam Machine GPU.

Clock speeds differ in every category. The RX 7800 XT has a base clock of 1295 MHz, boost of 2430 MHz, game clock of 2124 MHz, and memory clock of 2438 MHz (19.5 Gbps effective). The Steam Machine GPU has a base clock of 1720 MHz, boost of 2450 MHz, game clock of 2250 MHz, and memory clock of 2250 MHz (18 Gbps effective). The Steam Machine GPU runs higher clocks but with far fewer compute units.

Memory differs significantly: 16 GB versus 8 GB, 256-bit versus 128-bit bus, 624.1 GB/s versus 288.0 GB/s bandwidth. The RX 7800 XT has 3840 shading units, 240 TMUs, 96 ROPs, and 60 RT cores. The Steam Machine GPU has 1792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores. Pixel rate is 233.3 GPixel/s versus 156.8 GPixel/s, texture rate is 583.2 GTexel/s versus 274.4 GTexel/s, and FP32 is 37.32 TFLOPS versus 17.56 TFLOPS. FP16 is identical in ratio at 1:1 for both.

TDP is 263 W versus 110 W. Slot width is dual-slot for the RX 7800 XT, unspecified for the Steam Machine GPU. Power connectors are 2x 8-pin for the RX 7800 XT, none for the Steam Machine GPU. The suggested PSU is 600 W for the RX 7800 XT, absent for the Steam Machine GPU. Bus interface is PCIe 4.0 x16 for the RX 7800 XT, absent for the Steam Machine GPU. Display outputs are 1x HDMI 2.1a plus 3x DisplayPort 2.1 for the RX 7800 XT, and 1x HDMI 2.1a plus 1x DisplayPort 2.1 for the Steam Machine GPU.

Architecture Differences

Both GPUs share the RDNA 3.0 architecture, but the implementation differs at the chip level. The RX 7800 XT's Navi 32 is a larger chip with a codename of Wheat Nas, while the Steam Machine GPU's Navi 33 is codenamed Hotpink Bonefish. The RX 7800 XT is part of the Radeon RX 7000 series and the Navi III (RX 7000) generation, with a predecessor of Navi II and a successor of Navi IV. The Steam Machine GPU is classified as a Console GPU (Valve) generation with no predecessor or successor listed.

The RX 7800 XT uses a 5 nm process with a transistor density of 81.2M per mm², while the Steam Machine GPU uses a 6 nm process with 65.2M per mm². This density difference reflects the larger Navi 32 die packing 28,100 million transistors into 346 mm², versus Navi 33 packing 13,300 million into 204 mm². The RX 7800 XT has more than double the shading units, TMUs, ROPs, and RT cores of the Steam Machine GPU. The RX 7800 XT also has double the FP32 throughput, 37.32 TFLOPS versus 17.56 TFLOPS.

Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Neither has tensor cores. The RX 7800 XT's memory clock is higher at 2438 MHz versus 2250 MHz, and its bandwidth is more than double. The Steam Machine GPU's higher base and boost clocks (1720 MHz base, 2450 MHz boost) do not compensate for the halved compute resources. The RX 7800 XT's texture rate of 583.2 GTexel/s is more than double the Steam Machine GPU's 274.4 GTexel/s, and its pixel rate of 233.3 GPixel/s is 49% higher than 156.8 GPixel/s.

Where Each One Wins

The RX 7800 XT wins on every measured or specified performance metric in the database. Its FP32 throughput of 37.32 TFLOPS is 2.13 times the Steam Machine GPU's 17.56 TFLOPS. Its memory bandwidth of 624.1 GB/s is 2.17 times higher. Its texture rate of 583.2 GTexel/s is 2.13 times higher. Its pixel rate of 233.3 GPixel/s is 1.49 times higher. It has 2.14 times more shading units, 2.14 times more TMUs, 1.5 times more ROPs, and 2.14 times more RT cores. It carries 16 GB of memory versus 8 GB, and its 256-bit bus is double the 128-bit bus.

The Steam Machine GPU wins on power efficiency and physical integration. Its TDP of 110 W is less than half of the RX 7800 XT's 263 W. It requires no external power connectors, while the RX 7800 XT needs 2x 8-pin. Its dimensions of 156 mm by 152 mm by 162 mm are more compact than the RX 7800 XT's 267 mm by 111 mm by 50 mm. The Steam Machine GPU also operates at higher base and boost clocks (1720 MHz and 2450 MHz versus 1295 MHz and 2430 MHz), which suggests it can reach higher frequencies with fewer resources, though no benchmark data confirms the performance impact.

The RX 7800 XT's recorded benchmark scores show it delivers a specific level of performance: an average of 11627 points, placing it just below the GTX 1660 and just above the Radeon Pro 5500M. The Steam Machine GPU has no scores, so its wins are limited to the power, size, and connector categories. In a direct comparison, the RX 7800 XT is the only product with verified computational output, while the Steam Machine GPU is the only product with a verified low-power, connector-free design. The data favors the RX 7800 XT for compute-heavy tasks and the Steam Machine GPU for constrained, low-power installations.