AMD Radeon RX 6450M vs Intel Arc A380E x2 Comparison

Head-to-Head Benchmarks

The recorded database contains no head-to-head benchmark results for the AMD Radeon RX 6450M versus the Intel Arc A380E x2. Both entries report an average benchmark score of zero, and the wins tally for each side is zero. The percentile versus all GPUs is identical at 50 for both parts, indicating that neither has an established performance footprint in the current dataset. Without measured frame rates, compute scores, or synthetic test results, a direct numeric comparison of real-world speed cannot be made from the available information.

What can be compared directly are the theoretical throughput ceilings derived from the architecture specifications. The Intel part leads in raw floating-point output: 4.096 TFLOPS FP32 versus 3.779 TFLOPS for the AMD part, a margin of roughly 8.4%. In FP16, Intel again holds the advantage at 8.192 TFLOPS versus 7.557 TFLOPS, both operating at a 2:1 ratio. Texture rate favors Intel as well, with 128.0 GTexel/s against 118.1 GTexel/s, a gap of about 8.4%. The pixel rate, however, goes the other way. AMD delivers 78.72 GPixel/s while Intel manages 64.00 GPixel/s, giving AMD a 23% advantage in fill-rate-bound scenarios.

Memory bandwidth also splits the two. The Intel Arc A380E x2 has 186.0 GB/s across a 96-bit bus, while the AMD Radeon RX 6450M has 128.0 GB/s across a 64-bit bus. Intel holds a 45% bandwidth lead. Memory capacity favors Intel at 6 GB versus 4 GB. Effective memory speed is 15.5 Gbps on the Intel side and 16 Gbps on the AMD side, though the wider Intel bus compensates for the slightly lower per-pin rate.

Architecture Differences

The two GPUs come from different design philosophies. AMD uses the Navi 24 chip built on RDNA 2.0 architecture, part of the Navi Mobile (RX 6000M) generation. Intel counters with the DG2-128 chip based on Xe-HPG architecture, from the Alchemist (Arc 3) generation. Both are fabricated by TSMC on a 6 nm process, but the transistor budgets differ substantially. Intel packs 7,200 million transistors onto a 157 mm² die, while AMD fits 5,400 million onto 107 mm². Transistor density favors AMD at 50.5M per mm² versus 45.9M per mm² for Intel.

Core configurations diverge sharply. The Intel GPU has 1,024 shading units and 64 texture mapping units. The AMD GPU has 768 shading units and 48 texture mapping units. Both share 32 ROPs. Ray tracing hardware exists on both: AMD has 12 RT cores, Intel has 8. Neither part lists tensor cores. The AMD boost clock reaches 2460 MHz with a base of 2000 MHz and a game clock of 2220 MHz. Intel runs at a flat 2000 MHz for both base and boost, with no separate game clock listed.

Memory architecture differs in bus width and capacity. AMD uses 4 GB of GDDR6 on a 64-bit interface. Intel uses 6 GB of GDDR6 on a 96-bit interface. The effective memory rate is 16 Gbps for AMD and 15.5 Gbps for Intel. The resulting bandwidth figures are 128.0 GB/s and 186.0 GB/s respectively. The Intel part also carries a different PCIe configuration: PCIe 4.0 x8 versus PCIe 4.0 x4 on the AMD side, doubling the host link width.

Power and physical design are starkly different. AMD lists a TDP of 50 W, no power connectors, and an IGP slot width, indicating a mobile-integrated design with portable-device-dependent display outputs. Intel lists a TDP of 130 W, a single-slot form factor, a single 6-pin power connector, a suggested PSU of 300 W, and dimensions of 265 mm length, 127 mm height, and 20 mm width. Intel also provides eight mini-DisplayPort 2.0 outputs, a fixed desktop-style I/O arrangement. AMD's display outputs are not fixed, as they depend on the portable device.

The API support is identical: DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4 for both. Production status differs: AMD lists the RX 6450M as Active, while Intel lists the Arc A380E x2 as End-of-life. The Intel part has a successor named Battlemage and a predecessor of Xe Graphics. The AMD part lists its predecessor as Polaris Mobile and has no successor. Release dates are 2023-01-03 for AMD and 2024-03-31 for Intel.

Where Each One Wins

The AMD Radeon RX 6450M wins in situations dominated by pixel output. Its 78.72 GPixel/s fill rate is 23% higher than the Intel part's 64.00 GPixel/s. This matters for workloads that write many small fragments, such as high-resolution UI rendering, certain post-processing effects, or older games that are fill-rate limited. The AMD part also has a higher boost clock at 2460 MHz versus 2000 MHz, which can help in lightly-threaded or latency-sensitive rendering paths. Its denser transistor packing, 50.5M per mm² versus 45.9M per mm², suggests a more compact design that fits into the 50 W power envelope, making it suitable for thin-and-light portable systems where thermal and power budgets are tight.

The Intel Arc A380E x2 wins in compute-heavy and bandwidth-bound scenarios. Its FP32 throughput of 4.096 TFLOPS exceeds AMD's 3.779 TFLOPS by about 8.4%, and its FP16 output of 8.192 TFLOPS similarly leads AMD's 7.557 TFLOPS. Texture-heavy workloads favor Intel: 128.0 GTexel/s versus 118.1 GTexel/s. The 186.0 GB/s memory bandwidth, 45% higher than AMD's 128.0 GB/s, gives Intel a clear edge in tasks that stream large data sets, such as high-resolution texture streaming, compute shaders that repeatedly read from VRAM, or machine learning inference workloads that are bandwidth-limited. The 6 GB memory capacity also allows larger working sets than the 4 GB on the AMD side. The PCIe 4.0 x8 interface doubles the host link bandwidth versus PCIe 4.0 x4, reducing transfer bottlenecks for data that must cross the PCIe bus.

Neither part has any recorded benchmark wins, so these conclusions rest entirely on architectural specifications rather than measured performance. The data indicates that AMD's advantage is narrow and specific, while Intel's is broader across throughput and memory metrics.

The Verdict

From the recorded data, the Intel Arc A380E x2 is the stronger compute and bandwidth product. It delivers higher FP32 and FP16 throughput, more texture units, double the memory capacity, a wider memory bus, and substantially higher bandwidth. It also has more shading units and a wider PCIe link. The trade-off is a much higher power draw at 130 W versus 50 W, a single-slot desktop form factor with a 6-pin connector, and a suggested PSU of 300 W. The Intel part is end-of-life, while the AMD part remains active.

The AMD Radeon RX 6450M offers superior pixel fill rate and a higher boost clock, plus a far lower power budget. Its IGP slot width and lack of power connectors indicate integration into a laptop or portable device, not a standalone desktop card. The Intel part is a physically larger, power-hungry add-in board with eight mini-DisplayPort outputs.

For a system builder choosing between these two, the decision hinges on power and form factor versus throughput and memory. The Intel part wins on raw specifications but demands desktop-class power delivery and cooling. The AMD part wins on efficiency and pixel rate but is limited to 4 GB of VRAM and a narrower memory bus. The data does not support a universal recommendation; it supports a situational one. If the workload is compute-heavy, high-bandwidth, or texture-intensive, Intel is the choice. If the workload is fill-rate-limited and the power envelope is strict, AMD is the choice.

FAQ

Q: Which GPU has higher FP32 performance?

A: The Intel Arc A380E x2 has 4.096 TFLOPS FP32, while the AMD Radeon RX 6450M has 3.779 TFLOPS, giving Intel an 8.4% lead.

Q: How do the memory bandwidth figures compare?

A: Intel has 186.0 GB/s across a 96-bit bus, while AMD has 128.0 GB/s across a 64-bit bus, a 45% advantage for Intel.

Q: What is the difference in power consumption?

A: AMD lists a TDP of 50 W with no power connectors, while Intel lists a TDP of 130 W with one 6-pin connector and a suggested PSU of 300 W.

Q: Which GPU has more VRAM?

A: Intel has 6 GB of GDDR6, while AMD has 4 GB of GDDR6.

Q: Are both GPUs based on the same process node?

A: Yes, both are fabricated by TSMC on a 6 nm process, though Intel uses 7,200 million transistors on a 157 mm² die and AMD uses 5,400 million on 107 mm².

Q: Do both support the same graphics APIs?

A: Yes, both list DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.