AMD Radeon PRO W6400 vs NVIDIA GeForce RTX 4070 SUPER Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between these two GPUs, with the NVIDIA GeForce RTX 4070 SUPER winning both shared benchmark tests outright. The largest margin appears in the Geekbench Vulkan test, where the RTX 4070 SUPER scores 205,624 against the AMD Radeon PRO W6400’s 39,286, a delta of 423.4% in NVIDIA’s favor. The Geekbench OpenCL test tells a similar story: the RTX 4070 SUPER posts 172,795 versus 35,027 for the W6400, a 393.3% advantage.

These are not marginal differences; they represent a four-to-fivefold performance separation. The RTX 4070 SUPER also holds a much higher average benchmark score across all recorded tests: 43,223 compared to the W6400’s 37,157. That average includes a broader set of tests for NVIDIA (ten benchmarks) versus only two for AMD, yet the NVIDIA card still pulls ahead by roughly 16.3% on average.

The RTX 4070 SUPER’s nearest rivals in the database include the NVIDIA Quadro M6000 24 GB, which scores nearly identically (43,262 versus 43,223, a -0.1% delta), and the NVIDIA GeForce RTX 4090 Mobile, which sits 1% higher. For the W6400, its closest competitor is the AMD Radeon RX Vega 56, scoring 37,507 (0.9% higher), followed by the NVIDIA Tesla P4 and the NVIDIA GeForce RTX 4070, both 1.3% above. The W6400 only beats one nearby entry, the NVIDIA GeForce GTX TITAN X, by 1.7%.

The raw compute deltas in the head-to-head tests dwarf anything seen in the rival comparisons. A 393.3% OpenCL gap and a 423.4% Vulkan gap mean the RTX 4070 SUPER is not merely faster; it operates in a different performance class entirely. The W6400’s percentile ranking at 80 versus the RTX 4070 SUPER’s 83 reflects this, though the percentile difference understates how lopsided the direct comparisons are.

Architecture Differences

The two cards come from fundamentally different design generations. The NVIDIA GeForce RTX 4070 SUPER is built on the AD104 chip using the Ada Lovelace architecture, fabricated on a 5 nm process at TSMC. The AMD Radeon PRO W6400 uses the Navi 24 chip with RDNA 2.0 architecture, also made by TSMC but on a 6 nm node. The transistor counts reflect the scale gap: NVIDIA packs 35,800 million transistors into a 294 mm² die, while AMD fits 5,400 million into 107 mm². This yields a transistor density of 121.8 million per mm² for NVIDIA versus 50.5 million per mm² for AMD.

Clock speeds are closer than the architecture gap suggests. The W6400 actually has a higher base clock at 2039 MHz versus 1980 MHz for the RTX 4070 SUPER, though the NVIDIA card boosts higher at 2475 MHz versus 2321 MHz. The real separation comes from execution resources. The RTX 4070 SUPER has 7,168 shading units, 224 texture mapping units, and 80 render output units. The W6400 has 768 shading units, 48 TMUs, and 32 ROPs. That is roughly 9.3 times more shading units for NVIDIA.

Ray tracing hardware also differs sharply. The RTX 4070 SUPER includes 56 RT cores and 224 tensor cores, while the W6400 has 12 RT cores and no tensor cores at all. This reflects NVIDIA’s focus on AI-accelerated workloads and RTX-specific features. The FP32 throughput tells the story numerically: 35.48 TFLOPS for NVIDIA versus 3.565 TFLOPS for AMD. Interestingly, the W6400 does support FP16 at 7.130 TFLOPS with a 2:1 ratio, whereas the RTX 4070 SUPER runs FP16 at the same 35.48 TFLOPS as FP32 (1:1).

Memory configurations are equally divergent. The RTX 4070 SUPER offers 12 GB of GDDR6X on a 192-bit bus, delivering 504.2 GB/s of bandwidth. The W6400 has 4 GB of GDDR6 on a 64-bit bus, capping at 128.0 GB/s. Memory clock rates list at 1313 MHz (21 Gbps effective) for NVIDIA and 2000 MHz (16 Gbps effective) for AMD, but the bus width difference dominates real-world bandwidth. Pixel and texture rates follow: 198.0 GPixel/s and 554.4 GTexel/s for NVIDIA, versus 74.27 GPixel/s and 111.4 GTexel/s for AMD.

Power and physical specs diverge substantially. The RTX 4070 SUPER draws 220 W with a suggested 550 W PSU, uses a dual-slot design, and requires a 16-pin power connector. The W6400 runs at 50 W, needs only a 250 W PSU, fits a single slot, and draws power entirely from the PCIe slot with no external connector. The NVIDIA card is 267 mm long, 112 mm tall, and 42 mm wide. AMD lists no dimensions in the database. Both support PCIe 4.0, but the RTX 4070 SUPER uses x16 while the W6400 uses x4.

API support is identical on paper: both cards offer DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. Display outputs differ, with the RTX 4070 SUPER providing one HDMI 2.1 and three DisplayPort 1.4a outputs, while the W6400 has two DisplayPort 1.4a outputs. Both are marked end-of-life, with the RTX 4070 SUPER releasing in January 2024 and the W6400 in January 2022.

The Verdict

The data points to one clear conclusion: the NVIDIA GeForce RTX 4070 SUPER outperforms the AMD Radeon PRO W6400 in every shared benchmark by an overwhelming margin. The 423.4% Vulkan delta and 393.3% OpenCL delta are not close calls; they reflect GPUs from different performance tiers. The RTX 4070 SUPER also carries a higher percentile ranking (83rd versus 80th) and a higher average score (43,223 versus 37,157).

However, the correct choice depends entirely on workload and system constraints. The W6400’s 50 W power draw, single-slot footprint, and lack of external power connectors make it suitable for compact or low-power systems where the RTX 4070 SUPER’s 220 W draw and dual-slot size would not fit. The W6400 also has a higher base clock (2039 MHz versus 1980 MHz), though that advantage disappears under boost. For users who need maximum compute throughput, ray tracing, or AI tensor-core acceleration, the RTX 4070 SUPER is the only rational pick from the recorded data.

The RTX 4070 SUPER’s launch MSRP is 599 USD, noted once for reference. No pricing data exists for the W6400 in the database, so no comparison is possible there.

FAQ

Q: Which GPU wins in Geekbench OpenCL?

A: The NVIDIA GeForce RTX 4070 SUPER scores 172,795 versus 35,027 for the AMD Radeon PRO W6400, a 393.3% delta in NVIDIA’s favor.

Q: How large is the Vulkan performance gap?

A: The RTX 4070 SUPER scores 205,624 in Geekbench Vulkan, while the W6400 scores 39,286. That is a 423.4% advantage for NVIDIA.

Q: What is the memory bandwidth difference?

A: The RTX 4070 SUPER delivers 504.2 GB/s using 12 GB of GDDR6X on a 192-bit bus. The W6400 provides 128.0 GB/s with 4 GB of GDDR6 on a 64-bit bus.

Q: Does either card support ray tracing?

A: Yes, both do. The RTX 4070 SUPER has 56 RT cores, while the W6400 has 12 RT cores. Only the RTX 4070 SUPER includes tensor cores (224 of them).

Q: What are the power requirements?

A: The RTX 4070 SUPER draws 220 W and recommends a 550 W PSU. The W6400 draws 50 W and recommends a 250 W PSU.

Q: How do their average benchmark scores compare?

A: The RTX 4070 SUPER averages 43,223 across all recorded tests. The W6400 averages 37,157, which is about 16.3% lower.

Where Each One Wins

The NVIDIA GeForce RTX 4070 SUPER wins in every scenario where raw compute performance matters. Its FP32 throughput of 35.48 TFLOPS versus 3.565 TFLOPS for the W6400 means any compute-heavy task, from rendering to simulation, will favor NVIDIA by roughly an order of magnitude. The 224 tensor cores give it a decisive edge in AI workloads, and the 56 RT cores outperform the W6400’s 12 in ray-traced content. The 12 GB memory capacity and 504.2 GB/s bandwidth also make it suitable for large datasets or high-resolution textures that would exceed the W6400’s 4 GB frame buffer.

The AMD Radeon PRO W6400 wins in power-constrained deployments. Its 50 W TDP requires no external power connector, making it viable for systems with a 250 W PSU or less. The single-slot design and compact footprint (dimensions not listed) allow installation in dense chassis where the dual-slot, 267 mm RTX 4070 SUPER cannot fit. The W6400’s higher base clock of 2039 MHz versus 1980 MHz provides a small frequency advantage at idle-to-light loads, though boost clocks reverse this (2475 MHz versus 2321 MHz). For basic display output, 2D workloads, or multi-GPU configurations where power and space are the primary constraints, the W6400 offers a functional path, but the benchmark data shows no test where it beats the RTX 4070 SUPER.

The percentile gap (83rd versus 80th) confirms that both cards sit above most GPUs in the database, but the head-to-head results make the performance hierarchy unambiguous. Any workload that can use the RTX 4070 SUPER’s resources will see massive gains. Any workload that fits within the W6400’s power envelope will run, but with a fraction of the throughput. The recorded data offers no scenario where the W6400’s architectural features, such as its 2:1 FP16 ratio, translate into a benchmark win. In short, the RTX 4070 SUPER is the performance leader by every measurable metric in the database, while the W6400 serves as a low-power, space-efficient alternative.