AMD Steam Machine GPU vs NVIDIA RTX 4000 SFF Ada Generation Comparison

Head-to-Head Benchmarks

The recorded data presents an unusual comparison: the AMD Steam Machine GPU has no benchmark entries in the database, while the NVIDIA RTX 4000 SFF Ada Generation has two recorded scores. This means the head-to-head comparison relies entirely on the NVIDIA card's measured performance and the AMD card's architectural specifications, rather than direct benchmark results.

The NVIDIA RTX 4000 SFF Ada Generation delivers an OpenCL score of 124,812 and a Vulkan score of 109,364 in Geekbench testing. Its average benchmark score across these tests is 117,088. This places the card at the 95th percentile among all GPUs in the database, indicating it outperforms the vast majority of recorded graphics hardware.

The AMD Steam Machine GPU has no benchmark scores, an average benchmark score of zero, and sits at the 50th percentile. With no measured data, the database cannot confirm any performance advantage for the AMD part in compute workloads. The NVIDIA card's 95th percentile ranking versus the AMD card's 50th percentile ranking suggests a substantial gap, though this is based on the absence of AMD measurements rather than direct competition.

The NVIDIA card's nearest rivals provide context for its standing. The NVIDIA GB10 scores 117,393, which is 0.3% higher than the RTX 4000 SFF Ada. The AMD Radeon PRO W7700 scores 118,976, 1.6% higher. The NVIDIA Tesla V100 SXM2 16 GB scores 114,395, which is 2.4% lower. The NVIDIA RTX A5500 Mobile scores 113,944, 2.8% lower. These deltas show the RTX 4000 SFF Ada Generation sits in a tight competitive cluster, with the largest gap being just 2.8% either direction.

For raw compute throughput, the NVIDIA card delivers 19.17 TFLOPS FP32 and 19.17 TFLOPS FP16. The AMD card offers 17.56 TFLOPS FP32 and 17.56 TFLOPS FP16. That places the NVIDIA part roughly 9% ahead in peak floating-point performance, though the database records no benchmark confirmation of this theoretical advantage.

Texture and pixel processing favor different cards. The NVIDIA RTX 4000 SFF Ada Generation reaches 299.5 GTexel/s, while the AMD Steam Machine GPU reaches 274.4 GTexel/s, a modest NVIDIA lead. In pixel throughput, the AMD card produces 156.8 GPixel/s versus the NVIDIA card's 99.84 GPixel/s, giving AMD a clear advantage in rasterization fill rate. The AMD card's higher clock speeds drive this: its boost clock is 2450 MHz versus 1560 MHz for NVIDIA, and its game clock is 2250 MHz.

Architecture Differences

The two GPUs use different manufacturing processes and chip designs. AMD's Steam Machine GPU uses the Navi 33 chip built on TSMC's 6 nm process, containing 13,300 million transistors on a 204 mm² die. NVIDIA's RTX 4000 SFF Ada Generation uses the AD104 chip on TSMC's 5 nm process, packing 35,800 million transistors into a 294 mm² die. The transistor density tells a stark story: NVIDIA achieves 121.8M transistors per mm², while AMD reaches 65.2M per mm². The NVIDIA chip uses roughly 2.7 times more transistors on a die that is only about 44% larger.

Architecturally, AMD employs RDNA 3.0 with the codename Hotpink Bonefish, categorized as a Console GPU for Valve. NVIDIA uses Ada Lovelace, categorized as a Workstation Ada part. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API-level compatibility matches.

The compute resource counts differ substantially. NVIDIA's AD104 carries 6,144 shading units, 192 texture mapping units, 64 ROPs, 48 RT cores, and 192 tensor cores. AMD's Navi 33 has 1,792 shading units, 112 TMUs, 64 ROPs, and 28 RT cores. NVIDIA provides about 3.4 times more shading units and 1.7 times more TMUs. The RT core count favors NVIDIA at 48 versus 28. Tensor cores exist only on the NVIDIA card, which has 192 of them; the AMD chip has none listed. This gives NVIDIA a decisive advantage in AI-accelerated workloads and DLSS-style features, while AMD must rely on its shader-based approach.

Memory configurations diverge sharply. The AMD card uses 8 GB of GDDR6 on a 128-bit bus, delivering 288.0 GB/s bandwidth. The NVIDIA card uses 20 GB of GDDR6 on a 160-bit bus, delivering 280.0 GB/s bandwidth. Despite the narrower bus, NVIDIA's larger memory pool offers 2.5 times more capacity, though slightly lower peak bandwidth. The AMD card's memory runs at 2250 MHz (18 Gbps effective), while NVIDIA's runs at 1750 MHz (14 Gbps effective). The AMD card's higher memory clock partially compensates for its narrower bus.

Power characteristics differ significantly. The AMD Steam Machine GPU has a TDP of 110 W, while the NVIDIA RTX 4000 SFF Ada Generation has a TDP of 70 W. Neither card requires external power connectors. NVIDIA lists a suggested PSU of 250 W; AMD lists none. The NVIDIA card is dual-slot, while the AMD card's slot width is not recorded. Physical dimensions also vary: AMD measures 156 mm by 152 mm by 162 mm, while NVIDIA measures 168 mm by 69 mm, with the third dimension unrecorded. The AMD card is notably taller and wider, while NVIDIA's is longer but much shorter.

Display outputs differ. AMD provides one HDMI 2.1a port and one DisplayPort 2.1 port, which is a newer standard. NVIDIA provides four mini-DisplayPort 1.4a outputs. The NVIDIA card uses a PCIe 4.0 x16 interface, while AMD's bus interface is not recorded.

The release timeline shows the NVIDIA card launched on March 20, 2023, with its predecessor listed as Workstation Ampere and successor as Blackwell PRO W. The AMD card has a release date of June 28, 2026, with no predecessor or successor listed. Both are marked as Active in production.

The Verdict

The database records a clear performance hierarchy in favor of the NVIDIA RTX 4000 SFF Ada Generation. Its 95th percentile ranking and measured average score of 117,088 stand against the AMD Steam Machine GPU's 50th percentile and zero benchmark entries. For any workload requiring raw compute, the NVIDIA card's 19.17 TFLOPS FP32 output exceeds AMD's 17.56 TFLOPS. The NVIDIA card also provides 192 tensor cores, which the AMD card lacks entirely, making the NVIDIA part the only option for dedicated AI acceleration.

The AMD card retains advantages in specific areas. Its 156.8 GPixel/s pixel rate exceeds NVIDIA's 99.84 GPixel/s, suggesting stronger fill-rate-bound performance. Its 288.0 GB/s bandwidth slightly edges NVIDIA's 280.0 GB/s. The AMD card's DisplayPort 2.1 output supports a newer display standard than NVIDIA's mini-DisplayPort 1.4a. At 110 W TDP, it consumes more power than NVIDIA's 70 W, but the larger power envelope may allow higher sustained clocks in some scenarios.

Users requiring large memory capacity should choose the NVIDIA card, which offers 20 GB versus AMD's 8 GB. This difference matters for large datasets, high-resolution textures, or multi-application workflows. The NVIDIA card's dual-slot form factor and shorter height (69 mm) suit compact workstation builds better than AMD's taller 152 mm profile.

The AMD Steam Machine GPU appears oriented toward a console-style application, given its Valve association and RDNA 3.0 architecture. Its higher clock speeds and pixel throughput could benefit gaming workloads, but the absence of benchmark data means the database cannot confirm gaming performance. The NVIDIA card's workstation classification, 20 GB memory, and tensor core support make it the more versatile professional choice based on recorded specifications.

FAQ

Q: Which GPU has a higher benchmark percentile?

A: The NVIDIA RTX 4000 SFF Ada Generation ranks at the 95th percentile among all GPUs in the database. The AMD Steam Machine GPU ranks at the 50th percentile.

Q: How much memory does each GPU have?

A: The AMD Steam Machine GPU has 8 GB of GDDR6 memory on a 128-bit bus. The NVIDIA RTX 4000 SFF Ada Generation has 20 GB of GDDR6 memory on a 160-bit bus.

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA RTX 4000 SFF Ada Generation delivers 19.17 TFLOPS FP32, while the AMD Steam Machine GPU delivers 17.56 TFLOPS FP32. The NVIDIA card is approximately 9% higher.

Q: Does either GPU have tensor cores?

A: Only the NVIDIA RTX 4000 SFF Ada Generation has tensor cores, with 192 of them. The AMD Steam Machine GPU lists no tensor cores.

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

A: The AMD Steam Machine GPU has a TDP of 110 W. The NVIDIA RTX 4000 SFF Ada Generation has a TDP of 70 W. Neither requires external power connectors.

Q: Which GPU has a higher pixel fill rate?

A: The AMD Steam Machine GPU produces 156.8 GPixel/s, which is higher than the NVIDIA RTX 4000 SFF Ada Generation's 99.84 GPixel/s.

Where Each One Wins

NVIDIA RTX 4000 SFF Ada Generation dominates in compute-heavy professional workloads. Its 19.17 TFLOPS FP32 and FP16 output exceeds the AMD card's 17.56 TFLOPS in both precision formats. The 192 tensor cores enable AI inference and training tasks that the AMD card cannot accelerate through dedicated hardware. The 20 GB memory capacity accommodates large models and datasets that would exceed the AMD card's 8 GB. The 95th percentile ranking and measured Geekbench scores of 124,812 in OpenCL and 109,364 in Vulkan confirm strong general compute performance. Its 299.5 GTexel/s texture rate edges the AMD card's 274.4 GTexel/s. The 70 W TDP makes it more power-efficient, and its dual-slot, 69 mm height profile fits low-profile workstation chassis. The four mini-DisplayPort 1.4a outputs support multi-display setups.

AMD Steam Machine GPU wins in rasterization throughput and memory bandwidth. Its 156.8 GPixel/s pixel rate is 57% higher than the NVIDIA card's 99.84 GPixel/s, indicating stronger fill-rate-bound rendering performance. The 288.0 GB/s memory bandwidth slightly exceeds NVIDIA's 280.0 GB/s, despite the narrower 128-bit bus. The higher base clock of 1720 MHz and boost clock of 2450 MHz versus NVIDIA's 720 MHz base and 1560 MHz boost suggest the AMD card maintains higher operating frequencies. The DisplayPort 2.1 output supports a newer display interface standard than NVIDIA's DisplayPort 1.4a. The 110 W TDP, while higher than NVIDIA's 70 W, reflects the AMD card's higher clock strategy. The 28 RT cores provide ray tracing capability, though fewer than NVIDIA's 48 RT cores. The RDNA 3.0 architecture and Valve association suggest console-oriented gaming scenarios may favor this card, though no benchmark data confirms this.