AMD Radeon RX 7900M vs AMD Ryzen Z2 GPU Comparison

Head-to-Head Benchmarks

The recorded database contains no head-to-head benchmark entries for the AMD Radeon RX 7900M versus the AMD Ryzen Z2 GPU, and the win counter shows zero for both parts. This absence of direct comparison data is itself informative: the two products occupy different measurement categories. The RX 7900M has three published benchmark scores, while the Ryzen Z2 GPU has no recorded benchmark results, an average score of zero, and no nearest rivals listed. Any direct performance comparison must therefore rely on the RX 7900M's standalone measurements and the architectural deltas between the two.

The RX 7900M delivers a 3DMark Steel Nomad DX12 score of 4201, a Geekbench OpenCL score of 129499, and a Geekbench Vulkan score of 158760. Its average benchmark score across these tests is 97487. That average places the RX 7900M at the 94th percentile among all GPUs in the database. The nearest rival, the AMD Radeon Pro VII, posts an average score of 97131, which puts the RX 7900M just 0.4% ahead. Against the NVIDIA Quadro RTX 6000, the RX 7900M trails by 4.3%, as that rival averages 101872. The RX 7900M leads the AMD Radeon Instinct MI60 by 5.4% (92466 average) and the NVIDIA RTX A4500 by 6.3% (91671 average). These deltas are modest, indicating that the RX 7900M sits in a tightly contested performance band among workstation-class GPUs rather than dominating its immediate competitors.

The Ryzen Z2 GPU, by contrast, has no scores to interpret. Its percentile ranking of 50 is a default midpoint value, not a measured result. The database shows no rival comparisons for it, and its average benchmark score is recorded as zero. This means the only quantitative basis for comparing the two parts is the RX 7900M's absolute scores, which stand alone without a direct counterpart.

The FP32 throughput figures offer one indirect comparison. The RX 7900M computes 38.52 TFLOPS of FP32, while the Ryzen Z2 GPU computes 8.294 TFLOPS. That is a 4.64x difference in raw single-precision compute, a substantial gap that aligns with the RX 7900M's discrete, high-power design versus the Ryzen Z2 GPU's integrated, low-power configuration. The FP16 numbers reinforce the gap: the RX 7900M reaches 77.05 TFLOPS with a 2:1 ratio, while the Ryzen Z2 GPU matches its FP32 figure at 8.294 TFLOPS with a 1:1 ratio. The RX 7900M's FP16 advantage is therefore 9.29x.

Pixel and texture rates tell the same story. The RX 7900M sustains 401.3 GPixel/s and 601.9 GTexel/s. The Ryzen Z2 GPU sustains 86.40 GPixel/s and 129.6 GTexel/s. Those are 4.64x and 4.64x differences respectively, consistent with the shading unit count disparity: 4608 shading units versus 768, a 6x difference. The RX 7900M also has 288 TMUs versus 48, and 192 ROPs versus 32, both 6x gaps. Ray tracing hardware differs by 6x as well, with 72 RT cores on the RX 7900M against 12 on the Ryzen Z2 GPU.

FAQ

Q: How does the RX 7900M's average benchmark score compare to its nearest rivals?

A: The RX 7900M averages 97487 across its recorded tests. It sits 0.4% above the AMD Radeon Pro VII (97131), 5.4% above the AMD Radeon Instinct MI60 (92466), and 6.3% above the NVIDIA RTX A4500 (91671). It trails the NVIDIA Quadro RTX 6000 by 4.3%, which averages 101872.

Q: Does the Ryzen Z2 GPU have any recorded benchmark scores?

A: No. The database lists zero benchmark entries for the Ryzen Z2 GPU, an average benchmark score of 0, and no nearest rivals. Its percentile rank of 50 is a placeholder rather than a measured outcome.

Q: What is the difference in FP32 compute between the two parts?

A: The RX 7900M delivers 38.52 TFLOPS of FP32, while the Ryzen Z2 GPU delivers 8.294 TFLOPS. The RX 7900M is 4.64x faster in raw single-precision throughput.

Q: Which part has the higher boost clock?

A: The Ryzen Z2 GPU boosts to 2700 MHz, which is higher than the RX 7900M's boost of 2090 MHz. However, the RX 7900M has a much higher base clock at 1825 MHz versus 800 MHz for the Ryzen Z2 GPU.

Q: How do memory bandwidth figures compare?

A: The RX 7900M uses a 256-bit bus with GDDR6 memory running at 2250 MHz (18 Gbps effective), producing 576.0 GB/s of bandwidth. The Ryzen Z2 GPU uses a 128-bit bus with LPDDR5X memory at 937 MHz (7.5 Gbps effective), producing 119.9 GB/s. That is a 4.81x bandwidth advantage for the RX 7900M.

Q: What is the transistor count difference?

A: The RX 7900M contains 57,700 million transistors on a 529 mm² die, using TSMC's 5 nm process. The Ryzen Z2 GPU contains 25,390 million transistors on a 178 mm² die, using TSMC's 4 nm process. The RX 7900M has 2.27x more transistors on a 2.97x larger die.

The Verdict

The data indicates that the RX 7900M is the higher-performing part by every measurable metric in the database. Its FP32 throughput of 38.52 TFLOPS exceeds the Ryzen Z2 GPU's 8.294 TFLOPS by a factor of 4.64. Its memory bandwidth of 576.0 GB/s is 4.81x the Ryzen Z2 GPU's 119.9 GB/s. Its shading unit count of 4608 is 6x the Ryzen Z2 GPU's 768. The RX 7900M also has recorded benchmark scores, an average of 97487, and a 94th percentile rank, while the Ryzen Z2 GPU has none of these.

The Ryzen Z2 GPU does hold advantages in specific areas. Its 4 nm process node is newer than the RX 7900M's 5 nm node. Its transistor density of 142.6M per mm² is higher than the RX 7900M's 109.1M per mm². Its boost clock of 2700 MHz is 610 MHz higher than the RX 7900M's 2090 MHz. Its TDP of 28 W is dramatically lower than the RX 7900M's 180 W, a 6.43x power difference. The Ryzen Z2 GPU also uses LPDDR5X memory, which is a different memory type than the RX 7900M's GDDR6.

These differences point to distinct design goals. The RX 7900M is a discrete mobile GPU with a 180 W TDP, a 256-bit memory bus, and PCIe 4.0 x16 connectivity. It is positioned for high-throughput workloads where raw compute, texture fill, and memory bandwidth matter. The Ryzen Z2 GPU is an integrated solution with a 28 W TDP, a 128-bit memory bus, and a single USB Type-C display output. It is positioned for power-constrained environments where the lower clock base of 800 MHz and reduced resource counts are acceptable trade-offs.

For users selecting between these two, the decision rests on the workload requirements. The RX 7900M's 94th percentile ranking and its 6.3% lead over the RTX A4500 in average score indicate it competes in the upper tier of the database. The Ryzen Z2 GPU's absence of recorded scores means it cannot be positioned relative to any rival. The RX 7900M is the only one of the two with demonstrated performance data, and that data shows a part that is competitive with workstation GPUs like the Radeon Pro VII and Instinct MI60. The Ryzen Z2 GPU, with no benchmarks, no rivals, and a default 50th percentile, offers no measured performance evidence to weigh.

Specification Differences

The two parts differ across nearly every recorded specification field. The RX 7900M is based on the Navi 31 chip with the codename Plum Bonito, while the Ryzen Z2 GPU uses the Hawk Point chip with no codename recorded. The RX 7900M belongs to the Radeon RX 7000 series and the Navi Mobile (RX 7000M) generation, whereas the Ryzen Z2 GPU is listed under the Console GPU (AMD) generation with no series designation.

The process node differs: the RX 7900M uses TSMC's 5 nm process, while the Ryzen Z2 GPU uses TSMC's 4 nm process. Both use the same foundry. Transistor counts are 57,700 million for the RX 7900M and 25,390 million for the Ryzen Z2 GPU. Die sizes are 529 mm² and 178 mm² respectively. Transistor density is 109.1M per mm² for the RX 7900M and 142.6M per mm² for the Ryzen Z2 GPU.

Clock speeds diverge substantially. The RX 7900M has a base clock of 1825 MHz and a boost clock of 2090 MHz. The Ryzen Z2 GPU has a base clock of 800 MHz and a boost clock of 2700 MHz. Memory clocks are 2250 MHz (18 Gbps effective) for the RX 7900M and 937 MHz (7.5 Gbps effective) for the Ryzen Z2 GPU.

Memory configurations differ in type and bus width. The RX 7900M uses 16 GB of GDDR6 on a 256-bit bus. The Ryzen Z2 GPU also has 16 GB, but it is LPDDR5X on a 128-bit bus. Bandwidth is 576.0 GB/s versus 119.9 GB/s.

Compute resources are heavily skewed toward the RX 7900M. It has 4608 shading units, 288 TMUs, 192 ROPs, and 72 RT cores. The Ryzen Z2 GPU has 768 shading units, 48 TMUs, 32 ROPs, and 12 RT cores. Pixel rate is 401.3 GPixel/s versus 86.40 GPixel/s. Texture rate is 601.9 GTexel/s versus 129.6 GTexel/s. FP32 is 38.52 TFLOPS versus 8.294 TFLOPS. FP16 is 77.05 TFLOPS (2:1) versus 8.294 TFLOPS (1:1).

Power and physical specifications also differ. The RX 7900M has a TDP of 180 W, while the Ryzen Z2 GPU has a TDP of 28 W. The RX 7900M is listed as IGP slot width with no power connectors, and the Ryzen Z2 GPU has no slot width listed and no power connectors. The RX 7900M uses a PCIe 4.0 x16 bus interface, while the Ryzen Z2 GPU has no bus interface recorded. Display outputs are "Portable Device Dependent" for the RX 7900M and "1x USB Type-C" for the Ryzen Z2 GPU.

Release dates differ as well. The RX 7900M was released on 2023-10-18, while the Ryzen Z2 GPU was released on 2024-12-31. The RX 7900M's predecessor is Polaris Mobile, and it has no successor. The Ryzen Z2 GPU has no predecessor and no successor recorded.

Architecture Differences

Both parts share the RDNA 3.0 architecture and are manufactured by AMD, but they implement that architecture at very different scales and for different purposes. The RX 7900M uses the Navi 31 chip, which is the flagship die in the Radeon RX 7000 series mobile lineup. The Ryzen Z2 GPU uses the Hawk Point chip, which is a smaller, integrated design.

The RDNA 3.0 architecture is common to both, and both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The similarity ends there. The RX 7900M's Navi 31 chip contains 57,700 million transistors on a 529 mm² die, making it a large, high-power discrete GPU. The Ryzen Z2 GPU's Hawk Point chip contains 25,390 million transistors on a 178 mm² die, making it roughly one-third the die area with less than half the transistor count.

The process node differs by one generation step. The RX 7900M uses TSMC's 5 nm process, while the Ryzen Z2 GPU uses TSMC's 4 nm process. The 4 nm process achieves a higher transistor density of 142.6M per mm² compared to 109.1M per mm² on 5 nm. This density advantage partially compensates for the Ryzen Z2 GPU's smaller die, but the total resource count remains far lower.

Cache and memory architecture differ in type. The RX 7900M uses GDDR6 memory on a 256-bit bus, which is typical for a discrete GPU designed for high bandwidth. The Ryzen Z2 GPU uses LPDDR5X on a 128-bit bus, which is characteristic of integrated or console-oriented designs where power efficiency and packaging simplicity take priority over raw bandwidth. The bandwidth gap of 576.0 GB/s versus 119.9 GB/s reflects this fundamental design choice.

Compute feature implementation differs in the FP16 ratio. The RX 7900M delivers 77.05 TFLOPS of FP16 at a 2:1 ratio relative to FP32, indicating dedicated half-precision hardware that doubles throughput. The Ryzen Z2 GPU delivers 8.294 TFLOPS of FP16 at a 1:1 ratio, meaning it processes FP16 and FP32 at the same rate without a dedicated fast path. This distinction matters for workloads that leverage half-precision arithmetic, such as certain machine learning inference tasks.

Ray tracing hardware is present in both, but the RX 7900M has 72 RT cores versus 12 for the Ryzen Z2 GPU. The architectural intent is clear: the RX 7900M is built to handle demanding ray-traced workloads at high resolutions, while the Ryzen Z2 GPU offers ray tracing capability as a feature but with 6x fewer cores to execute it.

The power envelope differences reflect the architectural scale. The RX 7900M's 180 W TDP supports a large die with 4608 shading units and a 256-bit memory bus. The Ryzen Z2 GPU's 28 W TDP constrains it to 768 shading units and a 128-bit memory bus. The 4 nm process helps the Ryzen Z2 GPU reach a higher boost clock of 2700 MHz despite the lower power budget, but the base clock of 800 MHz shows that sustained operation at high frequencies is not its design point. The RX 7900M's lower boost clock of 2090 MHz is paired with a much higher base clock of 1825 MHz, indicating consistent performance delivery under load.

Both parts are listed as active production status. The RX 7900M has a release date of 2023-10-18, and the Ryzen Z2 GPU has a release date of 2024-12-31. The RX 7900M's predecessor is Polaris Mobile, which is an older architecture generation, while the Ryzen Z2 GPU has no predecessor in the database.