AMD Instinct MI300X vs AMD Radeon 880M Comparison

Head-to-Head Benchmarks

The only directly comparable benchmark recorded in the database is Geekbench OpenCL, and the result is decisively one-sided. The AMD Instinct MI300X scores 317,994 points, while the AMD Radeon 880M manages 31,285 points. This puts the MI300X 916.4% ahead of the 880M in this compute-oriented test. To put that in perspective, the MI300X's score nearly doubles the 880M's entire benchmark suite combined, which includes multiple Passmark tests, 3DMark Steel Nomad, and both Geekbench variants.

The MI300X's OpenCL result places it at the 100th percentile among all GPUs in the database. Its nearest rivals in that test include the NVIDIA B200 at 345,482 points (8% higher), the NVIDIA H200 NVL at 334,891 points (5% higher), the NVIDIA L40S at 295,763 points (7.5% lower), and the NVIDIA RTX 6000 Ada Generation at 287,237 points (10.7% lower). This shows the MI300X sits in a tight cluster with the current top-tier accelerators, trading blows within a roughly 10% band.

The Radeon 880M, by contrast, sits at the 43rd percentile overall. Its nearest rivals in average benchmark score are the NVIDIA GeForce GTX 675MX at 8,427 points (0.1% lower), the NVIDIA GeForce MX330 at 8,458 points (0.3% higher), the AMD Radeon HD 8870M at 8,462 points (0.3% higher), and the AMD Radeon R9 M375X at 8,325 points (1.3% lower). These are all decade-old mobile or entry-level discrete parts, which frames the 880M's performance class clearly.

The MI300X wins the head-to-head count 1 to 0. There is no benchmark in the database where the 880M records a higher score. The 880M does have more benchmark entries (10 versus 1), but every single one of them falls below the MI300X's single OpenCL result. Even the 880M's best score, 40,006 in Geekbench Vulkan, is less than one-eighth of the MI300X's OpenCL number.

Where Each One Wins

The MI300X wins in raw compute throughput, and the margin is not close. Its 81.72 TFLOPS FP32 and matching 81.72 TFLOPS FP16 (1:1) figures dwarf the 880M's 4.454 TFLOPS in both formats. The MI300X also delivers 5.32 TB/s of memory bandwidth from 192 GB of HBM3 across an 8192-bit bus. The 880M uses system shared memory with bandwidth labeled as system dependent, which means it relies on the host platform's DRAM rather than dedicated VRAM.

The 880M wins in features that matter for client systems. It supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, while the MI300X lists N/A for all three APIs. The 880M also has 12 ray tracing cores, which the MI300X does not list at all. The 880M outputs to portable device dependent displays, while the MI300X has no display outputs whatsoever. The 880M's pixel rate of 46.40 GPixel/s and texture rate of 139.2 GTexel/s are functional numbers; the MI300X's pixel rate is 0 MPixel/s and its texture rate is 2,553.6 GTexel/s, which reflects a design aimed at compute rather than graphics rasterization.

Power draw tells the same story from the opposite direction. The MI300X has a TDP of 750 W and suggests a 1150 W power supply. The 880M has a TDP of 15 W and no suggested PSU, because it is an IGP designed to run inside a mobile processor. The MI300X is an OAM module with no power connectors; the 880M is an IGP with no power connectors. One is a server accelerator, the other is an integrated graphics solution for laptops.

The Verdict

The data indicates these are not competing products. The MI300X is a dedicated compute accelerator for servers, as shown by its 192 GB HBM3 memory, 8192-bit bus, 5.32 TB/s bandwidth, 750 W TDP, OAM form factor, and complete lack of display outputs or graphics APIs. The 880M is an integrated GPU inside a Strix Point mobile processor, with system shared memory, a 15 W TDP, IGP form factor, and full support for DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4.

Anyone selecting between these two based on benchmark data would be choosing between a compute-only accelerator and a graphics-capable integrated part. If the workload is OpenCL compute, the MI300X is 916.4% faster in the recorded test. If the workload requires rendering to a display, the MI300X cannot do it at all, while the 880M lists portable device dependent outputs.

The MI300X's percentile ranking of 100 means it outperforms every other GPU in the database in the average benchmark score calculation. The 880M's 43rd percentile means it sits below the majority of recorded GPUs. But percentile is not the whole story: the 880M's nearest rivals are all older mobile discrete GPUs, while the MI300X's nearest rivals are current NVIDIA data center parts. The MI300X belongs in a rack, the 880M belongs in a thin-and-light laptop.

FAQ

Q: Which GPU is faster in Geekbench OpenCL?

A: The AMD Instinct MI300X scores 317,994 points versus 31,285 points for the AMD Radeon 880M, a 916.4% difference in favor of the MI300X.

Q: Does the Radeon 880M support ray tracing?

A: Yes, the 880M lists 12 ray tracing cores. The MI300X has no ray tracing cores listed.

Q: Can the Instinct MI300X output video to a display?

A: No, the MI300X has no display outputs. The Radeon 880M has portable device dependent display outputs.

Q: What memory configurations do these two use?

A: The MI300X uses 192 GB of HBM3 with an 8192-bit bus and 5.32 TB/s bandwidth. The 880M uses system shared memory with system dependent bandwidth.

Q: What is the power consumption difference?

A: The MI300X has a TDP of 750 W and suggests a 1150 W power supply. The 880M has a TDP of 15 W and no suggested power supply.

Q: Which APIs does each support?

A: The 880M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300X lists N/A for DirectX, OpenGL, and Vulkan.

Architecture Differences

The MI300X uses the Aqua Vanjaram chip built on CDNA 3.0 architecture, while the 880M uses the Strix Point chip built on RDNA 3.5. Both are fabricated by TSMC, but on different nodes: the MI300X uses 5 nm, the 880M uses 4 nm. The transistor counts differ massively, with the MI300X at 153,000 million transistors on a 1017 mm² die (150.4M per mm²), versus 34,000 million transistors on a 233 mm² die (145.9M per mm²) for the 880M.

The MI300X belongs to the Instinct (MIx) generation, succeeding Radeon Instinct. The 880M belongs to the Navi III IGP (Strix Point Mobile) generation, succeeding Navi II IGP. The MI300X was released on 2023-12-05; the 880M on 2024-07-14. The MI300X does not list a production status, while the 880M is marked active.

The compute resources are structured differently. The MI300X has 19,456 shading units, 1,216 TMUs, and 0 ROPs. The 880M has 768 shading units, 48 TMUs, and 16 ROPs. The MI300X's 0 ROPs and 0 MPixel/s pixel rate reflect its compute-only design. The 880M's 16 ROPs and 46.40 GPixel/s pixel rate reflect its graphics role. The MI300X does not list tensor cores or RT cores; the 880M lists 12 RT cores but no tensor cores.

The bus interfaces differ: the MI300X uses PCIe 5.0 x16, the 880M uses PCIe 4.0 x8. Clock behavior also differs. The MI300X runs at a 1000 MHz base and 2100 MHz boost, with memory at 1300 MHz (5.2 Gbps effective). The 880M runs at a 400 MHz base and 2900 MHz boost, with system shared memory.

Specification Differences

The two parts differ in nearly every measurable specification. The MI300X has 192 GB of HBM3 memory; the 880M has system shared memory. The MI300X's memory bus is 8192 bit wide; the 880M's is system shared. The MI300X delivers 5.32 TB/s bandwidth; the 880M's is system dependent.

Compute throughput: the MI300X offers 81.72 TFLOPS FP32 and 81.72 TFLOPS FP16 (1:1). The 880M offers 4.454 TFLOPS FP32 and 4.454 TFLOPS FP16 (1:1). Texture rates: 2,553.6 GTexel/s for the MI300X versus 139.2 GTexel/s for the 880M. Pixel rates: 0 MPixel/s versus 46.40 GPixel/s.

The MI300X has a 750 W TDP, occupies an OAM Module slot, and suggests a 1150 W power supply. The 880M has a 15 W TDP, is an IGP, and has no suggested power supply. Neither has power connectors listed. The MI300X uses PCIe 5.0 x16; the 880M uses PCIe 4.0 x8. The MI300X has no display outputs; the 880M has portable device dependent outputs.

API support differs completely: the MI300X lists N/A for DirectX, OpenGL, and Vulkan, while the 880M supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI300X has no launch MSRP recorded, and neither does the 880M. The MI300X's release date is 2023-12-05; the 880M's is 2024-07-14. The MI300X's predecessor is Radeon Instinct; the 880M's is Navi II IGP.