AMD Radeon RX 6450M vs NVIDIA GeForce RTX 5070 Ti SUPER Comparison

AMD Radeon RX 6450M and NVIDIA GeForce RTX 5070 Ti SUPER occupy opposite ends of the mobile graphics spectrum, and the recorded data confirms a decisive performance gulf. The RTX 5070 Ti SUPER delivers roughly 11.6 times the FP32 compute throughput of the RX 6450M, and its memory subsystem provides 7 times the bandwidth. The RX 6450M is a 50 W integrated-class part built for efficiency, while the RTX 5070 Ti SUPER is a 350 W dual-slot discrete GPU with a 16-pin connector. Benchmark results place the RTX 5070 Ti SUPER in the 36th percentile of all GPUs, with an average score of 6270 in the 3DMark Steel Nomad DX12 test. The RX 6450M has no recorded benchmark scores and sits at the 50th percentile, a value that reflects its unmeasured status rather than a competitive result.

Where Each One Wins

The RTX 5070 Ti SUPER wins every measurable category in the database. It holds the only recorded benchmark score, a 3DMark Steel Nomad DX12 result of 6269.5, which produces an average benchmark score of 6270. The RX 6450M has zero recorded benchmarks and an average score of 0, so no direct comparison can be made from real-world test data. The wins for the RTX 5070 Ti SUPER are structural: it delivers 43.94 TFLOPS of FP32 performance versus 3.779 TFLOPS for the RX 6450M, and its texture rate of 686.6 GTexel/s dwarfs the 118.1 GTexel/s of the AMD part. Pixel throughput follows the same pattern, with the NVIDIA GPU reaching 235.4 GPixel/s against 78.72 GPixel/s for the Radeon.

The RX 6450M wins in power efficiency and physical footprint. Its 50 W TDP is 300 W lower than the 350 W TDP of the RTX 5070 Ti SUPER, and it requires no power connectors, while the NVIDIA card requires a single 16-pin connector. The AMD GPU is classified as an IGP, meaning it is designed to be integrated into portable devices with device-dependent display outputs. The RTX 5070 Ti SUPER is a dual-slot card measuring 304 mm in length, 137 mm in height, and 48 mm in width, with dedicated display outputs including one HDMI 2.1b port and three DisplayPort 2.1b ports. The RX 6450M is the choice for compact, low-power systems; the RTX 5070 Ti SUPER is the choice for raw performance in a desktop replacement chassis.

Architecture Differences

The two GPUs come from different architectural generations and process nodes. The AMD Radeon RX 6450M uses the RDNA 2.0 architecture on a 6 nm TSMC process, with the Navi 24 chip containing 5,400 million transistors on a 107 mm² die. The transistor density is 50.5 million per square millimeter. The NVIDIA GeForce RTX 5070 Ti SUPER uses the Blackwell 2.0 architecture on a 5 nm TSMC process, with the GB203 chip containing 45,600 million transistors on a 378 mm² die, giving a transistor density of 120.6 million per square millimeter. The NVIDIA chip integrates over 8 times as many transistors on a die roughly 3.5 times larger.

Compute resources differ by an order of magnitude. The RX 6450M has 768 shading units, 48 texture mapping units, 32 ROPs, and 12 ray tracing cores, with no tensor cores. The RTX 5070 Ti SUPER has 8,960 shading units, 280 TMUs, 96 ROPs, 70 ray tracing cores, and 280 tensor cores. The FP16 throughput reveals a key architectural distinction: the AMD GPU achieves 7.557 TFLOPS at a 2:1 ratio relative to FP32, while the NVIDIA GPU achieves 43.94 TFLOPS at a 1:1 ratio. This means the RTX 5070 Ti SUPER does not halve its throughput when processing FP16 workloads, a significant advantage for compute tasks that use reduced precision.

Memory architecture is another major divergence. The RX 6450M has 4 GB of GDDR6 memory on a 64-bit bus, with a memory clock of 2000 MHz, and an effective data rate of 16 Gbps. Its bandwidth is 128.0 GB/s. The RTX 5070 Ti SUPER has 16 GB of GDDR7 memory on a 256-bit bus, with a memory clock of 1750 MHz, and an effective data rate of 28 Gbps. Its bandwidth is 896.0 GB/s, exactly 7 times the AMD figure. The NVIDIA card also uses a PCIe 5.0 x16 interface, while the AMD card uses PCIe 4.0 x4, a substantial difference in host communication bandwidth.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API-level feature parity exists. The RX 6450M belongs to the Radeon RX 6000 series and the Navi Mobile generation, released on January 3, 2023. The RTX 5070 Ti SUPER belongs to the GeForce 50-series and the GeForce 50 generation, with a release date of December 31, 2025. The AMD card's predecessor is Polaris Mobile; the NVIDIA card has no listed predecessor.

FAQ

Q: Which GPU has the higher FP32 compute performance?

A: The RTX 5070 Ti SUPER delivers 43.94 TFLOPS of FP32 performance, compared to 3.779 TFLOPS for the RX 6450M. The NVIDIA GPU is approximately 11.6 times faster in this metric.

Q: How do the memory configurations compare?

A: The RX 6450M has 4 GB of GDDR6 memory on a 64-bit bus with 128.0 GB/s of bandwidth. The RTX 5070 Ti SUPER has 16 GB of GDDR7 memory on a 256-bit bus with 896.0 GB/s of bandwidth, which is 7 times the bandwidth of the AMD part.

Q: What is the power consumption difference?

A: The RX 6450M has a TDP of 50 W and requires no power connectors. The RTX 5070 Ti SUPER has a TDP of 350 W and requires a single 16-pin power connector.

Q: Does the RTX 5070 Ti SUPER have tensor cores?

A: Yes, the RTX 5070 Ti SUPER has 280 tensor cores. The RX 6450M has no tensor cores listed in its specifications.

Q: Which GPU supports the newer PCIe interface?

A: The RTX 5070 Ti SUPER uses PCIe 5.0 x16, while the RX 6450M uses PCIe 4.0 x4. The NVIDIA card offers both a newer and wider host interface.

Q: What are the physical dimensions of the RTX 5070 Ti SUPER?

A: The RTX 5070 Ti SUPER is a dual-slot card measuring 304 mm in length, 137 mm in height, and 48 mm in width. The RX 6450M is an IGP with no listed dimensions.

Specification Differences

The following fields differ between the two GPUs in the database:

• Process node: 6 nm (AMD) versus 5 nm (NVIDIA)
• Transistors: 5,400 million versus 45,600 million
• Die size: 107 mm² versus 378 mm²
• Transistor density: 50.5M / mm² versus 120.6M / mm²
• Base clock: 2000 MHz versus 2295 MHz
• Boost clock: 2460 MHz versus 2452 MHz
• Game clock: 2220 MHz (AMD only)
• Memory clock: 2000 MHz with 16 Gbps effective versus 1750 MHz with 28 Gbps effective
• Memory size: 4 GB versus 16 GB
• Memory type: GDDR6 versus GDDR7
• Memory bus width: 64 bit versus 256 bit
• Memory bandwidth: 128.0 GB/s versus 896.0 GB/s
• Shading units: 768 versus 8,960
• TMUs: 48 versus 280
• ROPs: 32 versus 96
• Ray tracing cores: 12 versus 70
• Tensor cores: none versus 280
• Pixel rate: 78.72 GPixel/s versus 235.4 GPixel/s
• Texture rate: 118.1 GTexel/s versus 686.6 GTexel/s
• FP32: 3.779 TFLOPS versus 43.94 TFLOPS
• FP16: 7.557 TFLOPS (2:1) versus 43.94 TFLOPS (1:1)
• TDP: 50 W versus 350 W
• Slot width: IGP versus dual-slot
• Power connectors: none versus 1x 16-pin
• Bus interface: PCIe 4.0 x4 versus PCIe 5.0 x16
• Display outputs: portable device dependent versus 1x HDMI 2.1b, 3x DisplayPort 2.1b
• Dimensions: not listed versus 304 mm length, 137 mm height, 48 mm width
• Release date: January 3, 2023 versus December 31, 2025
• Launch MSRP: none listed for AMD, 749 USD for NVIDIA

Head-to-Head Benchmarks

The database contains no shared head-to-head benchmark entries between these two GPUs. The RTX 5070 Ti SUPER has one recorded result: a 3DMark Steel Nomad DX12 score of 6269.5, which rounds to an average benchmark score of 6270. The RX 6450M has no benchmark scores at all, so its average is 0. This absence of data is itself informative: the RX 6450M is a low-power integrated part not subjected to the same benchmark suite as a top-tier discrete GPU.

The RTX 5070 Ti SUPER's nearest rivals in the database are all within a narrow band. The NVIDIA GeForce RTX 4070 Ti SUPER AD102 matches its average score of 6270 with a delta of 0 percent. The NVIDIA Quadro K620 scores 6282, which is 0.2 percent higher. The AMD FirePro W600 scores 6223, which is 0.8 percent lower. The AMD Radeon R7 M350 scores 6327, which is 0.9 percent higher. These results place the RTX 5070 Ti SUPER in a tight cluster around 6270, with the largest delta being less than 1 percent in either direction. This suggests the card's performance level is well established by the benchmark, and its 36th percentile ranking reflects its position among all tested GPUs.

The RX 6450M, by contrast, has no nearest rivals listed, no benchmark scores, and no percentile-based comparisons beyond its unmeasured 50th percentile placeholder. Its performance must be inferred from its specifications. With an FP32 throughput of 3.779 TFLOPS and a texture rate of 118.1 GTexel/s, it operates at roughly 8.6 percent of the NVIDIA card's FP32 throughput and 17.2 percent of its texture rate. The memory bandwidth gap is even wider when expressed as a ratio, with the AMD card providing 14.3 percent of the NVIDIA card's bandwidth. These ratios quantify the performance hierarchy between the two parts.

The FP16 comparison is notable because of the architectural ratio difference. The RX 6450M reaches 7.557 TFLOPS at a 2:1 ratio, meaning its FP16 rate is double its FP32 rate. The RTX 5070 Ti SUPER reaches 43.94 TFLOPS at a 1:1 ratio, meaning its FP16 rate equals its FP32 rate. The NVIDIA GPU is still 5.8 times faster in FP16 despite the AMD card's ratio advantage, because its base FP32 throughput is so much higher. This matters for workloads that rely on reduced-precision arithmetic, where the NVIDIA card maintains full throughput.

The Verdict

The data supports a clear split: the RTX 5070 Ti SUPER is for users who need maximum graphics performance, and the RX 6450M is for systems where power draw and physical size are the primary constraints. The RTX 5070 Ti SUPER demonstrates its capabilities with a recorded 3DMark Steel Nomad DX12 score of 6269.5, an average score of 6270, and a position in the 36th percentile of all GPUs. It offers 16 GB of GDDR7 memory, 896.0 GB/s of bandwidth, 70 ray tracing cores, and 280 tensor cores, making it suitable for demanding rendering, ray tracing, and compute workloads. Its 350 W TDP and dual-slot footprint with a 304 mm length require a large chassis and a 16-pin power connection.

The RX 6450M offers no recorded benchmark results, so its performance cannot be verified against the database's test suite. Its specifications describe a 4 GB GDDR6 part with a 64-bit bus, 128.0 GB/s of bandwidth, 12 ray tracing cores, and no tensor cores. Its 50 W TDP and IGP classification make it appropriate for portable devices where power efficiency is critical. The absence of power connectors and device-dependent display outputs reinforce its role as an integrated solution. Users who require the RTX 5070 Ti SUPER's performance level should select that card. Users who prioritize low power consumption and compact integration should consider the RX 6450M. The two parts do not compete in the same market segment, and the recorded data confirms that the RTX 5070 Ti SUPER is the substantially faster GPU.