AMD Steam Machine GPU vs NVIDIA RTX PRO 4000 Blackwell SFF Comparison

Head-to-Head Benchmarks

The recorded data contains a single benchmark result for the NVIDIA RTX PRO 4000 Blackwell SFF, with no corresponding score for the AMD Steam Machine GPU. The NVIDIA card scores 2910 in 3DMark Steel Nomad DX12. This places it in the 19th percentile among all GPUs in the database, meaning roughly four out of five recorded graphics cards score higher. The AMD Steam Machine GPU holds a 50th percentile position overall, though no direct benchmark score is attached to its entry in the database.

The RTX PRO 4000 Blackwell SFF sits in a tightly clustered competitive group. Its nearest rival, the NVIDIA GeForce RTX 4060 Ti 16 GB, averages 2907, putting the professional card 0.1% ahead. The RTX 4060 Ti 8 GB averages 2913, which is 0.1% ahead of the RTX PRO 4000. The NVIDIA Quadro P600 averages 2923, 0.4% ahead. The NVIDIA GeForce RTX 4010 averages 2893, leaving the RTX PRO 4000 0.6% ahead. These margins are effectively negligible, all within a 1% band, indicating that the RTX PRO 4000 Blackwell SFF performs at parity with a mid-range consumer GeForce card in this specific DX12 workload.

Without a direct benchmark result for the AMD Steam Machine GPU, a head-to-head numerical comparison cannot be established from the database. The available data confirms that the AMD part is ranked at the median of all recorded GPUs, while the NVIDIA part sits well below that median in percentile terms. The absence of a matching score for the AMD card means the only measurable conclusion is that the NVIDIA card delivers a specific 2910-point result, and that its immediate rivals all fall within 0.6% of that figure.

Architecture Differences

The two GPUs diverge sharply at the silicon level. AMD uses the Navi 33 chip built on RDNA 3.0 architecture, with the codename Hotpink Bonefish. It is classified as a Console GPU for Valve. TSMC fabricates this chip on a 6 nm process. The die contains 13,300 million transistors across 204 mm², yielding a transistor density of 65.2 million per mm².

NVIDIA counters with the GB203 chip on Blackwell 2.0 architecture, classified under the Blackwell PRO W (x000) generation. TSMC also fabricates this part, but on a 5 nm process. The die is substantially larger at 378 mm² and packs 45,600 million transistors, which translates to 120.6 million transistors per mm². That is nearly double the density of the AMD chip, a direct consequence of the smaller process node and the much larger transistor budget.

The NVIDIA part carries 8,960 shading units, 280 texture mapping units, and 96 raster output units. It also includes 70 RT cores and 280 tensor cores. The AMD part has 1,792 shading units, 112 TMUs, and 64 ROPs, with 28 RT cores and no tensor cores. The difference in raw compute resources is enormous: NVIDIA fields five times the shader count and ten times the tensor core count.

Clock behavior also differs. The AMD card runs a base clock of 1720 MHz, a boost of 2450 MHz, and a game clock of 2250 MHz. The NVIDIA card lists a base of just 405 MHz and a boost of 1342 MHz, with no game clock. These low clocks are characteristic of a power-constrained small form factor design. Despite the clock deficit, the NVIDIA card achieves higher absolute throughput because of its massive shader array. FP32 compute is 24.05 TFLOPS for NVIDIA versus 17.56 TFLOPS for AMD. FP16 is identical to FP32 on both cards at a 1:1 ratio.

Memory architecture is another major split. AMD uses 8 GB of GDDR6 on a 128 bit bus, delivering 288.0 GB/s. NVIDIA uses 24 GB of GDDR7 on a 192 bit bus, delivering 432.0 GB/s. That is three times the capacity and 50% more bandwidth. NVIDIA also lists a PCIe 5.0 x8 interface, while the AMD card has no listed bus interface.

Where Each One Wins

The AMD Steam Machine GPU wins on raw clock speed. Its 2450 MHz boost clock and 2250 MHz game clock dwarf the NVIDIA card's 1342 MHz boost. For workloads that scale with clock frequency rather than shader count, the AMD part has the advantage. It also achieves a higher pixel rate at 156.8 GPixel/s versus 128.8 GPixel/s, despite having fewer ROPs, because of its much higher clocks.

The NVIDIA RTX PRO 4000 Blackwell SFF wins on compute throughput and memory capacity. Its 24.05 TFLOPS FP32 figure is 37% higher than the AMD card's 17.56 TFLOPS. Texture rate also favors NVIDIA at 375.8 GTexel/s versus 274.4 GTexel/s, a 37% advantage. The 24 GB memory capacity is three times the AMD card's 8 GB, which matters for large datasets. The 432.0 GB/s bandwidth is 50% higher than the AMD card's 288.0 GB/s. The NVIDIA card also brings 280 tensor cores, which the AMD card lacks entirely, making it the only option of the two for tensor-accelerated workloads.

Power consumption favors NVIDIA in absolute terms: 70 W TDP versus 110 W. The NVIDIA card also lists a suggested PSU of 250 W, while the AMD card lists none. Both cards draw power without external connectors. The NVIDIA card is dual-slot and compact at 167 mm long, 69 mm high, and 40 mm wide. The AMD card is larger in footprint at 156 mm long, 152 mm high, and 162 mm wide, though it is shorter in length.

Display output differs as well. The AMD card offers one HDMI 2.1a and one DisplayPort 2.1. The NVIDIA card offers four mini-DisplayPort 2.1b outputs. For multi-monitor professional setups, the NVIDIA card has the clear advantage in output count. For a single display, the AMD card's full-size HDMI and DisplayPort are more convenient.

FAQ

Q: Which GPU has more memory?

A: The NVIDIA RTX PRO 4000 Blackwell SFF has 24 GB of GDDR7 memory on a 192 bit bus. The AMD Steam Machine GPU has 8 GB of GDDR6 on a 128 bit bus. NVIDIA has three times the capacity and 50% more bandwidth.

Q: What is the transistor count difference?

A: The NVIDIA GB203 chip contains 45,600 million transistors on a 378 mm² die. The AMD Navi 33 chip contains 13,300 million transistors on a 204 mm² die. NVIDIA has roughly 3.4 times the transistor count.

Q: Does the AMD card have tensor cores?

A: No. The AMD Steam Machine GPU lists no tensor cores. The NVIDIA RTX PRO 4000 Blackwell SFF lists 280 tensor cores.

Q: What is the power draw of each card?

A: The AMD card has a 110 W TDP. The NVIDIA card has a 70 W TDP. Neither card requires external power connectors.

Q: Which card has more RT cores?

A: The NVIDIA RTX PRO 4000 Blackwell SFF has 70 RT cores. The AMD Steam Machine GPU has 28 RT cores. NVIDIA has 2.5 times the RT core count.

Q: What is the NVIDIA card's benchmark score?

A: The NVIDIA card scores 2910 in 3DMark Steel Nomad DX12. Its nearest rival, the NVIDIA GeForce RTX 4060 Ti 16 GB, scores 2907, which is 0.1% behind.

Specification Differences

The following fields differ between the two GPUs:

• Chip: Navi 33 (AMD) versus GB203 (NVIDIA)
• Architecture: RDNA 3.0 versus Blackwell 2.0
• Generation: Console GPU (Valve) versus Blackwell PRO W (x000)
• Process node: 6 nm versus 5 nm, both TSMC
• Transistors: 13,300 million versus 45,600 million
• Die size: 204 mm² versus 378 mm²
• Transistor density: 65.2M / mm² versus 120.6M / mm²
• Base clock: 1720 MHz versus 405 MHz
• Boost clock: 2450 MHz versus 1342 MHz
• Memory size: 8 GB versus 24 GB
• Memory type: GDDR6 versus GDDR7
• Memory bus: 128 bit versus 192 bit
• Memory bandwidth: 288.0 GB/s versus 432.0 GB/s
• Shading units: 1792 versus 8960
• TMUs: 112 versus 280
• ROPs: 64 versus 96
• RT cores: 28 versus 70
• Tensor cores: None versus 280
• Pixel rate: 156.8 GPixel/s versus 128.8 GPixel/s
• Texture rate: 274.4 GTexel/s versus 375.8 GTexel/s
• FP32: 17.56 TFLOPS versus 24.05 TFLOPS
• FP16: 17.56 TFLOPS versus 24.05 TFLOPS
• TDP: 110 W versus 70 W
• Bus interface: Not listed versus PCIe 5.0 x8
• Display outputs: 1x HDMI 2.1a, 1x DisplayPort 2.1 versus 4x mini-DisplayPort 2.1b
• Dimensions: 156 mm x 152 mm x 162 mm versus 167 mm x 69 mm x 40 mm
• Release date: 2026-06-28 versus 2025-08-10
• Suggested PSU: Not listed versus 250 W
• Slot width: Not listed versus Dual-slot

The two cards share the same DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 API support. Both are listed as Active in production status. Neither has a launch MSRP in the database.

The Verdict

The data points to two different design philosophies. The AMD Steam Machine GPU is a console-oriented part built for high clock speeds at moderate power. Its 2450 MHz boost clock and 156.8 GPixel/s pixel rate are the highest figures in either specification list. It ranks at the 50th percentile among all GPUs, placing it exactly at the median of the database.

The NVIDIA RTX PRO 4000 Blackwell SFF is a professional small form factor card optimized for compute density and memory capacity. Its 24 GB of GDDR7 memory, 280 tensor cores, and 24.05 TFLOPS FP32 performance are the standout figures. The 70 W power draw is remarkably low for that level of compute capability. The 19th percentile ranking reflects the fact that the database includes many faster consumer cards, but the nearest rival data shows the card performs at parity with the RTX 4060 Ti family, all within 0.6% in the Steel Nomad test.

For a workload that depends on clock speed and pixel throughput, the AMD card has the measurable edge. For tensor-accelerated tasks, large memory footprints, or multi-display professional output, the NVIDIA card is the only option with those features. The NVIDIA card also consumes 40 W less power and occupies a smaller volume despite its longer 167 mm length. The AMD card is 110 mm taller and 122 mm wider, which constrains chassis compatibility.

The recorded benchmark data favors neither card directly because the AMD entry has no score. The percentile positions, however, indicate the AMD card sits at the median of all GPUs while the NVIDIA card sits at the 19th percentile. That gap is meaningful in the aggregate database, but the NVIDIA card's nearest rivals are all consumer GeForce cards within a fraction of a percent of its score, so the low percentile reflects the presence of faster cards rather than a weak result.

The AMD Steam Machine GPU suits a console-style, single-display configuration where clock speed and pixel fill rate matter most. The NVIDIA RTX PRO 4000 Blackwell SFF suits a professional SFF workstation where memory capacity, tensor acceleration, and multiple mini-DisplayPort outputs are required. Both cards run without external power connectors, but the NVIDIA card demands a 250 W suggested PSU while the AMD card lists no such requirement. The release dates differ by roughly ten months, with NVIDIA releasing in August 2025 and AMD in June 2026. The choice between them is determined by the workload: shader-heavy console gaming leans AMD, memory-heavy and tensor-heavy professional work leans NVIDIA.