AMD Instinct MI455X vs AMD Radeon 760M Comparison

Head-to-Head Benchmarks

The recorded data contains no overlapping benchmark entries between the AMD Instinct MI455X and the AMD Radeon 760M. The Instinct MI455X has an empty benchmark array in the database, meaning no measured scores exist for this part. The Radeon 760M, by contrast, has ten recorded benchmark results spanning 3DMark, Geekbench, and Passmark suites.

Without shared test results, a direct numerical comparison of performance is impossible. The database does provide an average benchmark score for the Radeon 760M of 6019 points, placing it in the 35th percentile among all GPUs. Its nearest rivals, based on average score, are the AMD Radeon RX 6400 at 6001 points (0.3% slower), the NVIDIA GeForce GTX 770M at 6000 points (0.3% slower), the NVIDIA RTX PRO 6000 Blackwell Server at 5996 points (0.4% slower), and the NVIDIA Quadro P2000 at 6049 points (0.5% faster). These delta values show the Radeon 760M sits in a tightly clustered performance band, within half a percentage point of four comparable parts.

For the Instinct MI455X, the database records a 50th percentile standing among all GPUs, but with a zero average benchmark score and no rival entries. This indicates the part has no empirical benchmark data logged, so its percentile ranking is a placeholder rather than a measured result. The head-to-head comparison table in the database is empty, with zero wins recorded for either side.

The lack of shared benchmarks means the analysis must rely on architectural specifications to differentiate these two processors. The Radeon 760M delivers a maximum recorded 3DMark Steel Nomad DX12 score of 400 points, a Geekbench OpenCL score of 20255, a Geekbench Vulkan score of 30336, and Passmark scores of 19 in DirectX 10, 52 in DirectX 11, 25 in DirectX 12, 65 in DirectX 9, 890 in G2D, 5310 in G3D, and 2840 in GPU Compute. These figures establish a baseline for an integrated graphics solution, but they cannot be compared against the Instinct MI455X because that accelerator has no entries in the same test suites.

FAQ

Q: What is the average benchmark score recorded for the AMD Radeon 760M?

A: The database records an average benchmark score of 6019 for the Radeon 760M, placing it in the 35th percentile among all GPUs.

Q: Does the AMD Instinct MI455X have any recorded benchmark scores?

A: No. The Instinct MI455X has an empty benchmark array in the database, a zero average benchmark score, and no nearest rival entries.

Q: How does the Radeon 760M compare to its closest rivals in the database?

A: The Radeon 760M is 0.3% faster than the AMD Radeon RX 6400 and the NVIDIA GeForce GTX 770M, 0.4% faster than the NVIDIA RTX PRO 6000 Blackwell Server, and 0.5% slower than the NVIDIA Quadro P2000.

Q: What is the highest individual benchmark score recorded for the Radeon 760M?

A: The highest recorded score is 30336 in Geekbench Vulkan, followed by 20255 in Geekbench OpenCL and 5310 in Passmark G3D.

Q: Which processor has a higher transistor density?

A: The Radeon 760M has a transistor density of 142.6 million transistors per square millimeter, while the Instinct MI455X has a density of 107.0 million per square millimeter.

Q: Which processor has a larger memory bus width?

A: The Instinct MI455X has a memory bus width of 24576 bit, whereas the Radeon 760M uses system shared memory with a bus width of System Shared.

The Verdict

The data supports a clear separation of use cases. The AMD Instinct MI455X is a compute accelerator with specifications aimed at high-throughput workloads: 32768 shading units, 1024 texture mapping units, a texture rate of 2457.6 GTexel/s, and a floating-point performance of 157.3 TFLOPS in both FP32 and FP16. It carries 432 GB of HBM4 memory with a bandwidth of 23.3 TB/s. This configuration is designed for data center or scientific computing scenarios where massive memory capacity and raw compute throughput are paramount.

The AMD Radeon 760M is an integrated graphics processor with 512 shading units, 32 texture mapping units, 16 raster output units, and 8 ray tracing cores. Its floating-point performance is 5.323 TFLOPS in FP32 and FP16, with a texture rate of 83.17 GTexel/s and a pixel rate of 41.58 GPixel/s. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, making it suitable for graphics rendering and gaming workloads in a mobile or low-power environment.

The Radeon 760M has recorded benchmark data and an active production status, while the Instinct MI455X has no benchmark scores and no production status listed. The Instinct MI455X targets compute acceleration without display outputs, while the Radeon 760M has motherboard-dependent display outputs and a 15 W thermal design power. The Instinct MI455X has a 2300 W thermal design power and requires a 2700 W suggested power supply, indicating a fundamentally different deployment context.

Users requiring graphics API support, ray tracing, and display connectivity should select the Radeon 760M. Users requiring extreme memory bandwidth, enormous compute throughput, and no display functionality should select the Instinct MI455X. The benchmark data does not permit a performance comparison, but the specification differences make the intended roles unambiguous.

Specification Differences

The two processors differ across nearly every measured specification. The Instinct MI455X uses a 2 nm process node, while the Radeon 760M uses a 4 nm node, both fabricated by TSMC. The Instinct MI455X has 320,000 million transistors on a 2990 mm² die, compared to 25,390 million transistors on a 178 mm² die for the Radeon 760M. Transistor density favors the Radeon 760M at 142.6 million per square millimeter versus 107.0 million for the Instinct MI455X.

Clock speeds differ significantly. The Instinct MI455X has a base clock of 1000 MHz and a boost clock of 2400 MHz, with memory clocked at 1900 MHz (7.6 Gbps effective). The Radeon 760M has a base clock of 800 MHz and a boost clock of 2599 MHz, with system shared memory. The Instinct MI455X features 432 GB of HBM4 memory on a 24576 bit bus with 23.3 TB/s bandwidth, while the Radeon 760M uses system shared memory with system dependent bandwidth.

Compute unit counts diverge sharply. The Instinct MI455X has 32768 shading units, 1024 TMUs, and 0 ROPs, yielding a pixel rate of 0 MPixel/s and a texture rate of 2457.6 GTexel/s. The Radeon 760M has 512 shading units, 32 TMUs, and 16 ROPs, yielding 41.58 GPixel/s and 83.17 GTexel/s. Floating-point performance is 157.3 TFLOPS for the Instinct MI455X versus 5.323 TFLOPS for the Radeon 760M, both at 1:1 FP16 to FP32.

Power requirements differ by an order of magnitude. The Instinct MI455X has a TDP of 2300 W with a suggested power supply of 2700 W, while the Radeon 760M has a TDP of 15 W with no suggested power supply listed. The Instinct MI455X uses an EAM Module slot width and PCIe 6.0 x16 interface, while the Radeon 760M is an IGP with PCIe 4.0 x8. Display outputs are absent on the Instinct MI455X and motherboard dependent on the Radeon 760M. The Instinct MI455X has no supported graphics APIs, while the Radeon 760M supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4. Release dates differ, with the Instinct MI455X dated 2026-07-22 and the Radeon 760M dated 2024-01-30.

Architecture Differences

The Instinct MI455X is built on CDNA 5.0 architecture under the Instinct (MIx) generation, using the MI450 256CU chip. The Radeon 760M uses RDNA 3.0 architecture under the Navi III IGP (Phoenix) generation, using the Phoenix chip. These architectural families target different workloads: CDNA 5.0 is optimized for compute acceleration, while RDNA 3.0 is optimized for graphics rendering.

The Instinct MI455X has no ray tracing cores listed, while the Radeon 760M includes 8 ray tracing cores. Neither part lists tensor cores in the database. The Instinct MI455X has no display outputs and no graphics API support, confirming its compute-only design. The Radeon 760M has motherboard-dependent display outputs and full graphics API support.

The predecessor fields also differ. The Instinct MI455X lists Radeon Instinct as its predecessor, while the Radeon 760M lists Navi II IGP. The Instinct MI455X has no production status recorded, while the Radeon 760M is marked as Active. The die size difference is substantial: 2990 mm² for the Instinct MI455X versus 178 mm² for the Radeon 760M, reflecting the Instinct MI455X's 320,000 million transistor count versus 25,390 million for the Radeon 760M.

Memory architecture is fundamentally different. The Instinct MI455X uses dedicated HBM4 memory with a 24576 bit bus and fixed bandwidth of 23.3 TB/s. The Radeon 760M uses system shared memory, with bandwidth dependent on the host system. This makes the Instinct MI455X suitable for memory-bound workloads while the Radeon 760M depends on system memory performance.

Where Each One Wins

The Instinct MI455X wins in raw compute throughput. Its 157.3 TFLOPS FP32 performance is substantially higher than the Radeon 760M's 5.323 TFLOPS. Its texture rate of 2457.6 GTexel/s exceeds the Radeon 760M's 83.17 GTexel/s by a wide margin. Memory bandwidth of 23.3 TB/s, with 432 GB of HBM4 capacity, enables workloads that require massive datasets resident on the accelerator. The 24576 bit memory bus provides the bandwidth necessary for large-scale matrix operations or data processing tasks.

The Radeon 760M wins in graphics features and practical deployment. It supports DirectX 12 Ultimate, OpenGL 4.6, and Vulkan 1.4, enabling modern graphics workloads. Its 8 ray tracing cores provide hardware-accelerated ray tracing, which the Instinct MI455X lacks. The 16 ROPs deliver a pixel rate of 41.58 GPixel/s, while the Instinct MI455X has zero ROPs and a zero pixel rate. The Radeon 760M's 15 W TDP allows integration into low-power systems, whereas the Instinct MI455X requires a 2300 W power envelope and a 2700 W suggested power supply.

The Radeon 760M also wins on benchmark data availability. Its ten recorded scores provide empirical evidence of performance in specific tests, while the Instinct MI455X has no recorded scores. The Radeon 760M's 35th percentile standing and 6019 average score are measured values, while the Instinct MI455X's 50th percentile is not supported by any benchmark data.

For display output, the Radeon 760M is the only option, as the Instinct MI455X has no display outputs. The Radeon 760M's PCIe 4.0 x8 interface is more modest than the Instinct MI455X's PCIe 6.0 x16, but the Radeon 760M's interface is appropriate for its integrated role. The Instinct MI455X's EAM Module slot width and lack of power connectors indicate a server or accelerator chassis installation, while the Radeon 760M's IGP form factor fits directly on a motherboard.

The production status favors the Radeon 760M, which is marked Active. The Instinct MI455X has no production status recorded. Release timing also differs, with the Radeon 760M dated earlier than the Instinct MI455X. Users needing a currently available, graphics-capable processor with measured benchmark results should choose the Radeon 760M. Users needing extreme compute and memory specifications without display support or graphics APIs should choose the Instinct MI455X.