AMD Instinct MI350P vs NVIDIA GeForce RTX 5080 Mobile Comparison

Head-to-Head Benchmarks

The recorded data contains no direct head-to-head benchmark comparisons between the AMD Instinct MI350P and the NVIDIA GeForce RTX 5080 Mobile. The MI350P has no benchmark entries in the database, while the RTX 5080 Mobile has ten recorded scores across various test suites. Because of this asymmetry, direct score-to-score comparisons are impossible. However, the RTX 5080 Mobile's benchmark results can be examined on their own terms, and the MI350P's theoretical specifications can be weighed against them.

The RTX 5080 Mobile delivers its strongest result in Geekbench Vulkan with a score of 169754, followed closely by Geekbench OpenCL at 166986. These two scores indicate strong compute performance in cross-platform APIs. The Passmark G3D score of 27711 is the highest in the Passmark suite, while Passmark GPU Compute reaches 12134. The DirectX-specific Passmark scores are far lower: DirectX 9 scores 314, DirectX 11 scores 253, DirectX 10 scores 171, and DirectX 12 scores 116. The Passmark G2D score of 1095 reflects 2D graphics workload performance.

The RTX 5080 Mobile's average benchmark score sits at 38349. Its nearest rival in the database is the NVIDIA GeForce MX570 with an average score of 38299, a delta of 0.1 percent. The NVIDIA GeForce RTX 4080 Mobile scores 38135, putting the RTX 5080 Mobile 0.6 percent ahead. The AMD Radeon Pro 580X scores 38706, which places it 0.9 percent ahead of the RTX 5080 Mobile, and the NVIDIA GeForce MX570 A scores 38691, also 0.9 percent ahead. These deltas are small, indicating that the RTX 5080 Mobile sits in a tightly contested performance band among these rivals.

The MI350P's FP32 throughput is 36.04 TFLOPS, and its FP16 throughput is also 36.04 TFLOPS with a 1:1 ratio. The RTX 5080 Mobile delivers 23.04 TFLOPS in both FP32 and FP16. This means the MI350P carries 56.4 percent more FP32 compute than the RTX 5080 Mobile in raw theoretical terms. Texture rate tells a similar story: the MI350P reaches 1,126.4 GTexel/s versus the RTX 5080 Mobile's 360.0 GTexel/s. The MI350P's pixel rate is listed as 0 MPixel/s because it has no ROPs, while the RTX 5080 Mobile has a pixel rate of 144.0 GPixel/s.

FAQ

Q: Why does the AMD Instinct MI350P have no benchmark scores in the database?

A: The database lists no benchmark entries for the MI350P. Its average benchmark score is 0, and its percentile versus all GPUs is 50. The RTX 5080 Mobile, by contrast, has ten recorded benchmark scores across 3DMark, Geekbench, and Passmark tests.

Q: How does the memory bandwidth compare between the two cards?

A: The MI350P uses 144 GB of HBM3e memory on an 8192-bit bus, delivering 8.19 TB/s of bandwidth. The RTX 5080 Mobile uses 16 GB of GDDR7 on a 256-bit bus, delivering 896.0 GB/s. The MI350P's bandwidth is approximately 9.1 times higher.

Q: What are the power requirements for each card?

A: The MI350P has a TDP of 600 W and requires a 1000 W suggested power supply with a single 16-pin connector. The RTX 5080 Mobile has a TDP of 80 W, uses no power connectors, and has no suggested PSU listed.

Q: Which card supports DirectX and other graphics APIs?

A: The RTX 5080 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI350P lists N/A for DirectX, OpenGL, and Vulkan, indicating it is not designed for standard graphics API workloads.

Q: What is the physical size difference between the two cards?

A: The MI350P measures 267 mm in length, 111 mm in height, and 40 mm in width, and it is a dual-slot card. The RTX 5080 Mobile is an integrated graphics processor (IGP) with no listed dimensions.

Q: How does the RTX 5080 Mobile compare to its nearest rivals?

A: The RTX 5080 Mobile's average score of 38349 is 0.1 percent above the GeForce MX570 (38299), 0.6 percent above the RTX 4080 Mobile (38135), and 0.9 percent below both the MX570 A (38691) and Radeon Pro 580X (38706).

Architecture Differences

The AMD Instinct MI350P is built on CDNA 4.0 architecture and uses the MI350 128CU chip. It is fabricated on a 3 nm process at TSMC with 73,000 million transistors on a 1190 mm² die, giving a transistor density of 61.3 million per mm². The RTX 5080 Mobile uses NVIDIA's Blackwell 2.0 architecture with the GB203 chip, fabricated on a 5 nm process at TSMC with 45,600 million transistors on a 378 mm² die, yielding a transistor density of 120.6 million per mm². The MI350P has a much larger die but a lower transistor density, while the RTX 5080 Mobile packs more transistors per area.

The MI350P has 8192 shading units and 512 texture mapping units, but it has 0 ROPs, no ray tracing cores, and no tensor cores listed. The RTX 5080 Mobile has 7680 shading units, 240 TMUs, 96 ROPs, 60 ray tracing cores, and 240 tensor cores. This structural difference reflects their intended purposes: the MI350P is a compute-oriented accelerator with no display outputs, while the RTX 5080 Mobile is a fully featured graphics processor with portable-device-dependent display outputs.

Clock behavior also differs. The MI350P runs at a 1000 MHz base clock and boosts to 2200 MHz, with memory clocked at 2000 MHz (8 Gbps effective). The RTX 5080 Mobile has a 975 MHz base clock and a 1500 MHz boost, with memory at 1750 MHz (28 Gbps effective). Despite the RTX 5080 Mobile's lower boost clock, its GDDR7 memory runs at a higher effective data rate per pin.

API support separates the two clearly. The MI350P has no DirectX, OpenGL, or Vulkan support in the database. The RTX 5080 Mobile supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI350P's compute-first design aligns with its lack of graphics API support.

Specification Differences

The two cards differ across nearly every specification field. The MI350P has a 3 nm process node versus 5 nm for the RTX 5080 Mobile. Transistor counts are 73,000 million versus 45,600 million. Die size is 1190 mm² versus 378 mm². Transistor density is 61.3M per mm² versus 120.6M per mm².

Memory capacity is 144 GB of HBM3e versus 16 GB of GDDR7. Bus width is 8192 bit versus 256 bit. Bandwidth is 8.19 TB/s versus 896.0 GB/s. Shading units are 8192 versus 7680. TMUs are 512 versus 240. ROPs are 0 versus 96. The RTX 5080 Mobile has 60 ray tracing cores and 240 tensor cores, while the MI350P has none listed.

Pixel rate is 0 MPixel/s versus 144.0 GPixel/s. Texture rate is 1,126.4 GTexel/s versus 360.0 GTexel/s. FP32 and FP16 are both 36.04 TFLOPS for the MI350P versus 23.04 TFLOPS for the RTX 5080 Mobile. TDP is 600 W versus 80 W. The MI350P is dual-slot with a 16-pin connector and a 1000 W suggested PSU, while the RTX 5080 Mobile is an IGP with no connectors and no suggested PSU.

The MI350P has no display outputs, while the RTX 5080 Mobile's outputs are portable-device dependent. Both use PCIe 5.0 x16. The MI350P has listed dimensions of 267 mm by 111 mm by 40 mm; the RTX 5080 Mobile has no dimensions listed. The MI350P's release date is 2026-05-06, and the RTX 5080 Mobile's release date is 2025-04-01. The MI350P's predecessor is Radeon Instinct, and the RTX 5080 Mobile's predecessor is GeForce 40 Mobile. The RTX 5080 Mobile has an active production status; the MI350P's status is not listed.

Where Each One Wins

The MI350P wins decisively in raw compute throughput. Its FP32 figure of 36.04 TFLOPS exceeds the RTX 5080 Mobile's 23.04 TFLOPS, and its FP16 performance matches that same advantage. Texture rate of 1,126.4 GTexel/s dwarfs the RTX 5080 Mobile's 360.0 GTexel/s. Memory bandwidth of 8.19 TB/s versus 896.0 GB/s gives the MI350P a massive advantage in memory-bound workloads. The 144 GB capacity versus 16 GB also favors the MI350P for large datasets.

The RTX 5080 Mobile wins in graphics-specific features. It has 96 ROPs and a pixel rate of 144.0 GPixel/s, while the MI350P has 0 ROPs and a 0 MPixel/s pixel rate. The RTX 5080 Mobile includes 60 ray tracing cores and 240 tensor cores, which the MI350P lacks entirely. The RTX 5080 Mobile supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, whereas the MI350P has no graphics APIs listed. The RTX 5080 Mobile also has display outputs, making it usable in portable devices, while the MI350P has none.

Power efficiency favors the RTX 5080 Mobile. Its 80 W TDP is far below the MI350P's 600 W TDP. The RTX 5080 Mobile requires no power connectors and no suggested PSU, while the MI350P needs a 16-pin connector and a 1000 W suggested PSU. For the same reason, the RTX 5080 Mobile's IGP form factor fits into laptops, while the MI350P is a dual-slot card with specific physical dimensions.

The RTX 5080 Mobile also has measurable benchmark presence. Its average score of 38349 and its percentile of 81 versus all GPUs are recorded. The MI350P has no benchmark scores and a percentile of 50. Where measured performance exists, the RTX 5080 Mobile shows competitive standing against the MX570, RTX 4080 Mobile, MX570 A, and Radeon Pro 580X, with deltas ranging from 0.1 to 0.9 percent.

The Verdict

The data separates these two products into distinct categories. The AMD Instinct MI350P is a compute accelerator with no graphics outputs, no ROPs, no ray tracing or tensor cores, and no graphics API support. Its strengths are raw FP32 and FP16 throughput, high texture rate, massive memory capacity, and extremely high bandwidth. Its 600 W TDP and dual-slot form factor indicate a server or workstation installation, not a desktop or mobile system.

The NVIDIA GeForce RTX 5080 Mobile is a mobile graphics processor with full graphics features: ROPs, ray tracing cores, tensor cores, DirectX 12 Ultimate, OpenGL 4.6, Vulkan 1.4, and display outputs. Its 80 W TDP and IGP form factor make it suitable for laptops. Its benchmark scores are recorded and place it within 0.9 percent of its nearest rivals. Its FP32 and FP16 figures are lower than the MI350P's, and its memory bandwidth and capacity are far smaller.

A user needing compute density, large memory pools, or extreme bandwidth should choose the MI350P. A user needing a portable GPU with graphics API support and ray tracing should choose the RTX 5080 Mobile. The MI350P cannot render graphics or output video, and the RTX 5080 Mobile cannot match the MI350P's compute scale or memory resources. The two serve different workloads, and the recorded data supports no crossover between them.