AMD Steam Machine GPU vs NVIDIA RTX PRO 6000 Blackwell Server Comparison

Where Each One Wins

The AMD Steam Machine GPU and NVIDIA RTX PRO 6000 Blackwell Server target entirely different segments, and the recorded data reflects that split. The AMD part is a compact console-oriented graphics processor built for a specific Valve form factor. It draws 110 W, uses no external power connectors, and measures just 156 mm in length. The NVIDIA part is a dual-slot server accelerator with a 600 W TDP, a 16-pin power connector, a 1000 W suggested PSU, and a PCIe 5.0 x16 interface. One is built for tight enclosures and low power draw; the other is built for maximum throughput in a server chassis.

In terms of benchmark presence, only the NVIDIA RTX PRO 6000 Blackwell Server has recorded results in the database. Its average 3DMark Steel Nomad DX12 score is 5996, and it sits at the 34th percentile among all GPUs. The AMD Steam Machine GPU has no benchmark entries, no average score, and no nearest rivals listed. That means the head-to-head comparison is one-sided in terms of measured data: the NVIDIA part has a concrete performance datapoint, while the AMD part's performance is entirely unmeasured in this database.

The wins are therefore clear by category. The NVIDIA RTX PRO 6000 Blackwell Server wins on every metric that appears in the database: raw compute, memory capacity, memory bandwidth, pixel throughput, texture throughput, ray tracing hardware, and tensor hardware. The AMD Steam Machine GPU wins on power efficiency expectations and physical compactness, though these are not benchmark wins but rather design characteristics. The AMD chip uses a 6 nm process, a 204 mm² die, and 13,300 million transistors for a total board power of 110 W. The NVIDIA chip uses a 5 nm process, a 750 mm² die, and 92,200 million transistors for a 600 W TDP. The data suggests the AMD part is meant for a specific low-power console use case, while the NVIDIA part is meant for server workloads where power draw is secondary to capability.

Architecture Differences

The two GPUs come from different architectural generations and are built for different physical realities. The AMD Steam Machine GPU uses the Navi 33 chip with RDNA 3.0 architecture, codenamed Hotpink Bonefish. It belongs to the Console GPU (Valve) generation. The NVIDIA RTX PRO 6000 Blackwell Server uses the GB202 chip with Blackwell 2.0 architecture and belongs to the Server Blackwell (Bxx) generation. The process nodes differ: AMD uses TSMC 6 nm, while NVIDIA uses TSMC 5 nm. Transistor counts are far apart. The AMD chip packs 13,300 million transistors on a 204 mm² die, for a transistor density of 65.2M per mm². The NVIDIA chip packs 92,200 million transistors on a 750 mm² die, for a density of 122.9M per mm². The density difference indicates NVIDIA is fitting more than twice as many transistors per square millimeter.

Compute resources diverge sharply. The AMD GPU has 1792 shading units, 112 texture mapping units, 64 ROPs, and 28 ray tracing cores. It has no tensor cores listed. The NVIDIA GPU has 24064 shading units, 752 TMUs, 192 ROPs, 188 RT cores, and 752 tensor cores. The raw ratios are substantial: NVIDIA has roughly 13 times the shading units, nearly 7 times the TMUs, 3 times the ROPs, and nearly 7 times the RT cores. The NVIDIA part also has 752 tensor cores, which the AMD part lacks entirely in the recorded data.

Clock behavior also differs. The AMD part has a base clock of 1720 MHz, a boost clock of 2450 MHz, and a game clock of 2250 MHz. The NVIDIA part has a base clock of 1590 MHz and a boost clock of 2617 MHz. The NVIDIA boost clock is higher, but the AMD part's game clock suggests a sustained frequency target for gaming workloads. Memory architecture is completely different. AMD uses 8 GB of GDDR6 on a 128 bit bus, with memory clocked at 2250 MHz (18 Gbps effective), yielding 288.0 GB/s of bandwidth. NVIDIA uses 96 GB of GDDR7 on a 512 bit bus, with memory at 1750 MHz (28 Gbps effective), yielding 1.79 TB/s of bandwidth. That is over six times the memory capacity and over six times the bandwidth.

The feature sets also differ in display outputs. The AMD part has 1x HDMI 2.1a and 1x DisplayPort 2.1. The NVIDIA part has 4x DisplayPort 2.1b. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The NVIDIA part is a dual-slot card, 267 mm long, 111 mm high, and 40 mm wide. The AMD part is 156 mm long, 152 mm high, and 162 mm wide, which is a more cube-like shape suited to a compact console. The NVIDIA part has a PCIe 5.0 x16 bus interface; the AMD part has no bus interface listed in the database.

Head-to-Head Benchmarks

The only measured benchmark in the database is 3DMark Steel Nomad DX12, and it belongs exclusively to the NVIDIA RTX PRO 6000 Blackwell Server. The NVIDIA part scores 5996. The AMD Steam Machine GPU has no score recorded, so there is no direct numeric comparison available from the database. The NVIDIA part's nearest rivals in the database are all older or lower-end parts: the NVIDIA GeForce GTX 770M scores 6000 with a delta of -0.1%, the AMD Radeon RX 6400 scores 6001 with a delta of -0.1%, the AMD FirePro W4100 scores 5987 with a delta of 0.2%, and the NVIDIA Quadro K4000M scores 5986 with a delta of 0.2%. This indicates the RTX PRO 6000 Blackwell Server's recorded 3DMark Steel Nomad score is essentially tied with those four parts, despite the massive architectural differences in compute and memory resources.

That apparent contradiction is worth examining. The RTX PRO 6000 Blackwell Server delivers 126.0 TFLOPS FP32, 1,968.0 GTexel/s texture rate, and 502.5 GPixel/s pixel rate. Its 96 GB of GDDR7 memory provides 1.79 TB/s of bandwidth. Yet its Steel Nomad score of 5996 places it at the 34th percentile among all GPUs and within a fraction of a percent of the GTX 770M, RX 6400, FirePro W4100, and Quadro K4000M. The database records the score as-is, and the interpretation is that this particular benchmark may not be representative of the NVIDIA part's server-oriented workload strengths. Steel Nomad is a DX12 gaming benchmark, and the RTX PRO 6000 Blackwell Server is a server accelerator with a 600 W TDP and a 1000 W suggested PSU.

For the AMD part, there are no benchmark numbers to compare directly. The absence of data means no wins can be credited to it in measured performance. The AMD part's FP32 rating is 17.56 TFLOPS, its texture rate is 274.4 GTexel/s, and its pixel rate is 156.8 GPixel/s. These are far below the NVIDIA part's corresponding figures. The AMD part's 288.0 GB/s memory bandwidth is also far below NVIDIA's 1.79 TB/s. The database records no head-to-head benchmark entries and no wins for either side, which reinforces that this comparison is defined by specifications and a single NVIDIA benchmark result rather than a matched test suite.

FAQ

Q: Does the AMD Steam Machine GPU have any recorded benchmark scores?

A: No. The database lists zero benchmarks for the AMD Steam Machine GPU, with an average benchmark score of 0 and no nearest rivals.

Q: What is the NVIDIA RTX PRO 6000 Blackwell Server's 3DMark Steel Nomad DX12 score?

A: The recorded score is 5996, placing it at the 34th percentile among all GPUs.

Q: How do the memory configurations compare?

A: The AMD Steam Machine GPU uses 8 GB of GDDR6 on a 128 bit bus with 288.0 GB/s bandwidth. The NVIDIA RTX PRO 6000 Blackwell Server uses 96 GB of GDDR7 on a 512 bit bus with 1.79 TB/s bandwidth.

Q: Which GPU has more ray tracing cores?

A: The NVIDIA RTX PRO 6000 Blackwell Server has 188 RT cores. The AMD Steam Machine GPU has 28 RT cores.

Q: Does the AMD Steam Machine GPU have tensor cores?

A: No tensor core count is listed for the AMD Steam Machine GPU. The NVIDIA RTX PRO 6000 Blackwell Server has 752 tensor cores.

Q: What is the TDP difference between the two GPUs?

A: The AMD Steam Machine GPU has a TDP of 110 W and no power connectors. The NVIDIA RTX PRO 6000 Blackwell Server has a TDP of 600 W, a 16-pin power connector, and a suggested PSU of 1000 W.

The Verdict

The database presents a clear split. The NVIDIA RTX PRO 6000 Blackwell Server is the only one of the two with measured performance data, and its specifications place it in a different class entirely. It has 24064 shading units versus 1792, 96 GB of GDDR7 versus 8 GB of GDDR6, 188 RT cores versus 28, and 752 tensor cores versus none. Its FP32 throughput is 126.0 TFLOPS versus 17.56 TFLOPS. Its memory bandwidth is 1.79 TB/s versus 288.0 GB/s. For any workload that leverages compute, memory capacity, ray tracing, or tensor operations, the NVIDIA part is the only choice supported by the recorded data.

The AMD Steam Machine GPU, by contrast, is defined by its constraints. It uses 110 W, needs no power connector, and fits in a 156 mm by 152 mm by 162 mm envelope. It is built for a Valve console form factor, and its specifications are consistent with a low-power, compact gaming GPU. The lack of benchmark data means its performance cannot be quantified in this database, but its design parameters indicate it is not competing with a 600 W server accelerator.

The verdict follows the data. For server deployments, AI inference, or any workload requiring large memory and high compute throughput, the NVIDIA RTX PRO 6000 Blackwell Server is the only option with recorded evidence. For a compact, low-power console-style GPU, the AMD Steam Machine GPU is the only option in this comparison that matches that physical and power profile. The two parts are not substitutes for each other. The data does not support a recommendation for the AMD part in any performance scenario, because no performance data exists for it. The data supports the NVIDIA part for raw capability, but its 600 W draw and server form factor exclude it from the use case the AMD part targets.