AMD Instinct MI350X vs AMD Radeon RX 9050 Comparison

Head-to-Head Benchmarks

The recorded database contains no head-to-head benchmark entries for the AMD Instinct MI350X against the AMD Radeon RX 9050. The head-to-head field is empty, and neither part has a wins tally in direct comparisons. Both cards sit at the 50th percentile among all GPUs in the database, with an average benchmark score of 0 for each. This means the two products have not been measured in a shared test suite, so a direct numerical comparison of performance is not possible from the recorded data.

What can be compared directly is the raw computational ceiling each part is built to deliver. The Instinct MI350X carries 16,384 shading units, 1,024 texture mapping units, and a 1,000 MHz base clock with a 2,200 MHz boost. Its FP32 throughput is listed at 72.09 TFLOPS, and FP16 matches at 72.09 TFLOPS with a 1:1 ratio. The Radeon RX 9050, by contrast, has 1,024 shading units, 64 TMUs, 64 ROPs, and 16 ray tracing cores. Its base clock is 1,330 MHz, the game clock is 1,920 MHz, and the boost clock reaches 2,600 MHz. FP32 output is 10.65 TFLOPS, with FP16 also at 10.65 TFLOPS (1:1).

The delta between these two in raw shader output is large. The Instinct MI350X delivers roughly 6.77 times the FP32 throughput of the RX 9050 when comparing the listed TFLOPS figures directly (72.09 divided by 10.65). Texture rate tells a similar story: the MI350X reaches 2,252.8 GTexel/s, while the RX 9050 manages 166.4 GTexel/s. That is a 13.5-fold advantage in texture fill rate. Pixel rate, however, flips the comparison. The MI350X is recorded at 0 MPixel/s because it has no ROPs and no display outputs, while the RX 9050 outputs 166.4 GPixel/s. The MI350X is not built to rasterize frames; the RX 9050 is.

Where Each One Wins

The Instinct MI350X wins in every category tied to compute density and memory bandwidth. It uses the CDNA 4.0 architecture, which is a compute-oriented design, and its 288 GB of HBM3e memory is paired with an 8,192-bit bus delivering 8.19 TB/s of bandwidth. The RX 9050 uses RDNA 4.0, a graphics-first architecture, with 8 GB of GDDR6 on a 128-bit bus for 288.0 GB/s. The MI350X therefore offers roughly 28.4 times the memory bandwidth of the RX 9050 (8.19 TB/s against 288.0 GB/s). That bandwidth gap is decisive for workloads that stream large datasets, such as AI training, inference, or scientific simulation.

The RX 9050 wins in areas tied to graphics output and power efficiency. It has 64 ROPs, 16 ray tracing cores, and supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The MI350X lists no API support for DirectX, OpenGL, or Vulkan, and has no display outputs. The RX 9050 also draws far less power: its TDP is 92 W with a suggested PSU of 250 W, while the MI350X is rated at 1,000 W TDP with a suggested PSU of 1,400 W. The RX 9050 uses a 4 nm process node and a 199 mm² die with 29,700 million transistors, giving it a transistor density of 149.2M per mm². The MI350X uses a 3 nm node, a 2380 mm² die, and 185,000 million transistors at 77.7M per mm². So the RX 9050 is substantially denser per square millimeter, while the MI350X uses a much larger die to host far more compute units.

The Verdict

The data points to two different products for two different purposes. The Instinct MI350X is a compute accelerator with 256 compute units on the MI350 chip, no ROPs, no display outputs, and no graphics API support. It is designed for throughput-bound workloads where memory bandwidth and FP32/FP16 density matter more than frame output. The RX 9050 is a graphics card with a Navi 44 chip, 64 ROPs, 16 ray tracing cores, full graphics API support, and display outputs. It is designed for rendering, rasterization, and ray tracing.

A buyer choosing between these two should base the decision on whether the workload needs rasterization or raw compute. The MI350X has no pixel output path, so it cannot drive a display or render a frame. The RX 9050 cannot approach the MI350X in memory bandwidth or shader throughput, so it is not suited for large-scale compute tasks. The MI350X has a 3 nm process and 2380 mm² die, while the RX 9050 uses 4 nm and 199 mm². Both use TSMC as the foundry. The MI350X belongs to the Instinct (MIx) generation with a Radeon Instinct predecessor, while the RX 9050 is in the Radeon RX 9000 series with a Navi III predecessor.

FAQ

Q: Which GPU has higher FP32 performance?

A: The AMD Instinct MI350X records 72.09 TFLOPS FP32, compared to 10.65 TFLOPS FP32 for the AMD Radeon RX 9050.

Q: Does the MI350X support display outputs?

A: No. The MI350X lists "No outputs" for display connections, while the RX 9050 includes 1x HDMI 2.1b and 2x DisplayPort 2.1a outputs.

Q: What memory configurations do the two cards use?

A: The MI350X has 288 GB of HBM3e on an 8,192-bit bus with 8.19 TB/s bandwidth. The RX 9050 has 8 GB of GDDR6 on a 128-bit bus with 288.0 GB/s bandwidth.

Q: Which GPU has ray tracing cores?

A: The RX 9050 has 16 ray tracing cores. The MI350X lists no ray tracing core count.

Q: What is the power draw difference?

A: The MI350X is rated at 1,000 W TDP with a 1,400 W suggested PSU. The RX 9050 is rated at 92 W TDP with a 250 W suggested PSU.

Q: Which card is smaller?

A: The RX 9050 uses a 199 mm² die, while the MI350X uses a 2380 mm² die. The MI350X is physically an OAM module measuring 102 mm by 165 mm; the RX 9050 has no recorded dimensions.

Architecture Differences

The MI350X and RX 9050 diverge at the architecture level. The MI350X uses CDNA 4.0, a compute-focused design with a 256CU chip, while the RX 9050 uses RDNA 4.0, a graphics-focused design with a Navi 44 chip. The MI350X has 16,384 shading units and 1,024 TMUs but zero ROPs, which makes sense for a compute accelerator that does not rasterize. The RX 9050 has 1,024 shading units, 64 TMUs, 64 ROPs, and 16 ray tracing cores, a configuration built for graphics pipelines.

Memory architecture reinforces the split. The MI350X uses HBM3e with an 8,192-bit bus, a stack width that supports its 8.19 TB/s bandwidth figure. The RX 9050 uses GDDR6 on a 128-bit bus, a conventional graphics memory layout that delivers 288.0 GB/s. The MI350X has no display outputs and no graphics API support (DirectX, OpenGL, Vulkan all listed as N/A). The RX 9050 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, and provides HDMI 2.1b and DisplayPort 2.1a outputs.

Process technology also differs. The MI350X is built on a 3 nm node at TSMC with 185,000 million transistors on a 2380 mm² die. The RX 9050 is built on 4 nm at TSMC with 29,700 million transistors on a 199 mm² die. Transistor density is higher on the RX 9050 at 149.2M per mm² versus 77.7M per mm² on the MI350X, but the MI350X uses its larger area to fit more compute and memory logic. The MI350X has no power connector because it is an OAM module; the RX 9050 uses a single 8-pin connector. Both use a PCIe 5.0 x16 bus interface.

Specification Differences

The two cards differ in nearly every measurable specification. The MI350X has a base clock of 1,000 MHz and a boost clock of 2,200 MHz, while the RX 9050 has a base clock of 1,330 MHz, a game clock of 1,920 MHz, and a boost clock of 2,600 MHz. Memory speed is listed as 2,000 MHz with 8 Gbps effective on the MI350X, versus 2,250 MHz with 18 Gbps effective on the RX 9050. The MI350X's memory capacity is 288 GB; the RX 9050's is 8 GB. Bus width is 8,192 bit on the MI350X and 128 bit on the RX 9050. Bandwidth is 8.19 TB/s versus 288.0 GB/s.

Shading units, TMUs, and ROPs all differ: 16,384 / 1,024 / 0 on the MI350X, and 1,024 / 64 / 64 on the RX 9050. The RX 9050 has 16 ray tracing cores; the MI350X has none listed. Pixel rate is 0 MPixel/s on the MI350X and 166.4 GPixel/s on the RX 9050. Texture rate is 2,252.8 GTexel/s versus 166.4 GTexel/s. FP32 and FP16 are 72.09 TFLOPS on the MI350X and 10.65 TFLOPS on the RX 9050, both at 1:1 ratios.

Power and physical specs also differ. The MI350X has a 1,000 W TDP and a 1,400 W suggested PSU; the RX 9050 has a 92 W TDP and a 250 W suggested PSU. The MI350X is an OAM Module with no power connector, while the RX 9050 is Dual-slot with one 8-pin connector. The MI350X has no display outputs; the RX 9050 has 1x HDMI 2.1b and 2x DisplayPort 2.1a. The MI350X is 102 mm long and 165 mm wide; the RX 9050 has no recorded dimensions. The MI350X has a 2380 mm² die on 3 nm with 185,000 million transistors; the RX 9050 has a 199 mm² die on 4 nm with 29,700 million transistors. The MI350X was released on 2025-06-11, and the RX 9050 on 2026-07-27. The MI350X has no series name, while the RX 9050 is in the Radeon RX 9000 series.