AMD Radeon RX 6450M vs NVIDIA N1X 48SM Comparison

Head-to-Head Benchmarks

The recorded data for the AMD Radeon RX 6450M and the NVIDIA N1X 48SM contains no direct head-to-head benchmark entries. The head-to-head benchmark field is empty, and neither part has an average benchmark score or a list of nearest rivals populated in the database. Consequently, a traditional performance comparison based on measured application results is not possible from the available facts.

What the database does provide is a comprehensive set of theoretical and architectural specifications for each part. These figures, while not direct benchmark outputs, serve as the basis for estimating relative compute capability. The NVIDIA N1X 48SM delivers a peak FP32 throughput of 28.83 TFLOPS, which is approximately 7.6 times the 3.779 TFLOPS of the Radeon RX 6450M. In FP16 workloads, the gap narrows slightly in raw terms but remains decisive: the NVIDIA part achieves 28.83 TFLOPS with a 1:1 ratio, while the AMD part reaches 7.557 TFLOPS via a 2:1 ratio. The NVIDIA GPU also holds a substantial lead in texture throughput, 900.9 GTexel/s versus 118.1 GTexel/s, and pixel throughput, 112.6 GPixel/s versus 78.72 GPixel/s.

Memory bandwidth follows the same pattern. The NVIDIA N1X 48SM is configured with 128 GB of LPDDR5X memory on a 256-bit bus, yielding 273.2 GB/s of bandwidth. The AMD Radeon RX 6450M offers 4 GB of GDDR6 on a 64-bit bus, resulting in 128.0 GB/s. That is a 2.1 times advantage for the NVIDIA part in bandwidth alone. The shading unit count also differs dramatically: 6144 shading units on the NVIDIA chip versus 768 on the AMD chip, an 8 times difference. Texture mapping units stand at 384 versus 48, and ROPs at 48 versus 32. Ray tracing hardware shows the NVIDIA part with 48 RT cores against 12 on the AMD side, while the NVIDIA GPU additionally carries 192 tensor cores, a feature entirely absent from the AMD specification.

The percentile ranking versus all GPUs is identical for both parts at the 50th percentile, and both record an average benchmark score of zero. These values indicate that the database has not yet assigned meaningful performance ranks to either product, so any interpretation of the percentile field must be treated as a placeholder rather than a measured outcome. The wins counters for both items are also set to zero, confirming that no head-to-head wins have been recorded.

FAQ

Q: Which GPU has a higher peak FP32 compute throughput in the database?

A: The NVIDIA N1X 48SM delivers 28.83 TFLOPS of FP32 performance, compared to 3.779 TFLOPS for the AMD Radeon RX 6450M. The NVIDIA part therefore has roughly 7.6 times the raw single-precision throughput.

Q: How does memory capacity and bandwidth compare between the two parts?

A: The NVIDIA N1X 48SM is equipped with 128 GB of LPDDR5X memory on a 256-bit bus, providing 273.2 GB/s of bandwidth. The AMD Radeon RX 6450M has 4 GB of GDDR6 on a 64-bit bus, providing 128.0 GB/s. The NVIDIA part has 32 times the memory capacity and roughly 2.1 times the bandwidth.

Q: What are the process node and die size differences?

A: The AMD Radeon RX 6450M uses a 6 nm process from TSMC and has a die size of 107 mm². The NVIDIA N1X 48SM uses a 5 nm process from TSMC and has a die size of 382 mm². The NVIDIA die is approximately 3.6 times larger by area.

Q: Does the NVIDIA N1X 48SM support DirectX, OpenGL, or Vulkan according to the database?

A: The database lists the NVIDIA N1X 48SM as having N/A for DirectX, OpenGL, and Vulkan. The AMD Radeon RX 6450M, in contrast, supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: What is the boost clock for each GPU?

A: The AMD Radeon RX 6450M boosts to 2460 MHz, with a base clock of 2000 MHz and a game clock of 2220 MHz. The NVIDIA N1X 48SM boosts to 2346 MHz, with a base clock of 741 MHz and no game clock listed.

Q: Which GPU has the higher transistor count?

A: The AMD Radeon RX 6450M contains 5,400 million transistors. The transistor count for the NVIDIA N1X 48SM is listed as unknown in the database.

Where Each One Wins

Given the absence of measured benchmark results, the allocation of wins must be based on the recorded specification data. The NVIDIA N1X 48SM wins in all raw compute and memory categories. It is the stronger choice for workloads that depend on peak FP32 throughput, FP16 throughput, texture filtering, pixel fill, and memory bandwidth. Its 28.83 TFLOPS FP32 figure, 28.83 TFLOPS FP16 figure, 900.9 GTexel/s texture rate, 112.6 GPixel/s pixel rate, and 273.2 GB/s bandwidth place it far ahead of the AMD part in every throughput metric. The presence of 192 tensor cores also gives it a dedicated hardware path for matrix operations that the AMD GPU completely lacks. The 48 RT cores compared to 12 on the AMD side further positions the NVIDIA part as the more capable option for ray-traced rendering workloads, assuming software support exists.

The AMD Radeon RX 6450M wins in areas related to API compatibility and clock frequency. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the NVIDIA part lists N/A for all three APIs. For applications that require those graphics APIs, the AMD part is the only one of the two that can be used without qualification. The AMD GPU also operates at a higher base clock, 2000 MHz versus 741 MHz, and a higher boost clock, 2460 MHz versus 2346 MHz. Its game clock of 2220 MHz has no equivalent on the NVIDIA side. The AMD part also has a known transistor count of 5,400 million, whereas the NVIDIA transistor count is unknown, which may matter for analytical purposes but does not directly affect performance.

The AMD part also holds an advantage in power envelope clarity. Its TDP is listed as 50 W, while the NVIDIA TDP is unknown. For systems constrained by thermal or power budgets where a defined limit is required, the AMD specification provides a concrete figure. Both parts are classified as IGP slot width with no power connectors, and both are listed as Active in production status. The AMD part was released on 2023-01-03, while the NVIDIA part carries a release date of 2026-05-31.

Specification Differences

The two GPUs differ across nearly every major specification field. The AMD Radeon RX 6450M belongs to the Radeon RX 6000 series and uses the Navi 24 chip, while the NVIDIA N1X 48SM uses the GB20B chip with no series designation. The AMD architecture is RDNA 2.0, and the NVIDIA architecture is Blackwell 2.0. The process node differs: 6 nm for AMD versus 5 nm for NVIDIA, both from TSMC. Die size is 107 mm² for AMD versus 382 mm² for NVIDIA. Transistor count is 5,400 million for AMD versus unknown for NVIDIA. Transistor density is 50.5M per mm² for AMD versus null for NVIDIA.

Clock specifications diverge substantially. The AMD base clock is 2000 MHz, boost is 2460 MHz, and game clock is 2220 MHz. The NVIDIA base clock is 741 MHz, boost is 2346 MHz, and no game clock is recorded. Memory clock for AMD is 2000 MHz with 16 Gbps effective, while NVIDIA lists 1067 MHz with 8.5 Gbps effective. Memory capacity is 4 GB GDDR6 for AMD versus 128 GB LPDDR5X for NVIDIA. Bus width is 64 bit for AMD versus 256 bit for NVIDIA. Bandwidth is 128.0 GB/s versus 273.2 GB/s.

Compute unit counts differ on every level. Shading units are 768 for AMD versus 6144 for NVIDIA. TMUs are 48 versus 384. ROPs are 32 versus 48. RT cores are 12 versus 48. Tensor cores are null for AMD versus 192 for NVIDIA. Pixel rate is 78.72 GPixel/s versus 112.6 GPixel/s. Texture rate is 118.1 GTexel/s versus 900.9 GTexel/s. FP32 is 3.779 TFLOPS versus 28.83 TFLOPS. FP16 is 7.557 TFLOPS with a 2:1 ratio versus 28.83 TFLOPS with a 1:1 ratio. TDP is 50 W for AMD versus unknown for NVIDIA.

Bus interface also differs: PCIe 4.0 x4 for AMD versus PCIe 5.0 x16 for NVIDIA. Display outputs are listed as portable device dependent for AMD versus 1x HDMI for NVIDIA. API support is fully specified for AMD (DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4) but marked N/A for NVIDIA across all three APIs. Release dates are 2023-01-03 for AMD and 2026-05-31 for NVIDIA. The AMD predecessor is listed as Polaris Mobile, with no successor, while the NVIDIA part has no predecessor or successor recorded.

Architecture Differences

The architectural divide is fundamental. AMD uses RDNA 2.0 on the Navi 24 chip, a design built for the Radeon RX 6000 series mobile lineup. NVIDIA uses Blackwell 2.0 on the GB20B chip, part of the Blackwell IGP (N1x) generation. The process nodes reflect a generational step: AMD is on 6 nm, NVIDIA on 5 nm, both from TSMC. The die area tells a story of scale: 107 mm² for AMD versus 382 mm² for NVIDIA, a 3.6 times difference. The AMD transistor density is recorded at 50.5M per mm², while NVIDIA density is not listed.

The core organization differs in both count and purpose. AMD packs 768 shading units, 48 TMUs, 32 ROPs, and 12 RT cores. NVIDIA fields 6144 shading units, 384 TMUs, 48 ROPs, 48 RT cores, and 192 tensor cores. The tensor core presence is the single most significant architectural feature separating the two, as it enables matrix math acceleration that the AMD part cannot perform in dedicated hardware. The FP16 execution ratio also reveals a design choice: AMD runs FP16 at half rate relative to FP32 (2:1), while NVIDIA runs FP16 at full rate (1:1), matching its FP32 throughput exactly at 28.83 TFLOPS.

Memory architecture reinforces the performance tier gap. The AMD part uses 4 GB of GDDR6 over a 64-bit bus, while the NVIDIA part uses 128 GB of LPDDR5X over a 256-bit bus. The bandwidth difference, 273.2 GB/s versus 128.0 GB/s, is consistent with the wider bus and faster memory type. The PCIe interface also differs: AMD connects via PCIe 4.0 x4, NVIDIA via PCIe 5.0 x16. That gives the NVIDIA part a wider and newer host interface, which matters for data transfer between the GPU and system memory in integrated or tightly coupled configurations.

The API situation is stark. AMD lists full support for DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. NVIDIA lists N/A for DirectX, OpenGL, and Vulkan. This means that, according to the database, the NVIDIA N1X 48SM does not currently expose standard graphics APIs, which would limit its use in conventional gaming or graphics applications that rely on those interfaces. The AMD part, by contrast, is fully specified for those APIs. The display output also differs: AMD is portable device dependent, while NVIDIA offers a single HDMI port. Both are IGP slot width, both lack power connectors, and both are currently Active in production status.