AMD Radeon RX 7900 GRE vs AMD Ryzen Z2 Go GPU Comparison

FAQ

Q: How does the AMD Radeon RX 7900 GRE compare to the AMD Ryzen Z2 Go GPU in terms of average benchmark score?

A: The RX 7900 GRE records an average benchmark score of 32,456 across all tests, while the Ryzen Z2 Go GPU has no recorded benchmark scores in the database, resulting in an average score of 0. This indicates the RX 7900 GRE has a substantial lead in measured performance.

Q: What is the architectural generation difference between these two GPUs?

A: The RX 7900 GRE uses the RDNA 3.0 architecture on a 5 nm process node, while the Ryzen Z2 Go GPU uses the RDNA 2.0 architecture on a 6 nm process node. Both are manufactured by TSMC.

Q: Which GPU has more shading units and texture mapping units?

A: The RX 7900 GRE has 5,120 shading units and 320 TMUs, whereas the Ryzen Z2 Go GPU has 768 shading units and 48 TMUs. The RX 7900 GRE delivers 6.7 times the shading units and 6.7 times the TMUs of the Ryzen Z2 Go GPU.

Q: What is the memory bandwidth difference between the two GPUs?

A: The RX 7900 GRE provides 576.0 GB/s of bandwidth using 16 GB of GDDR6 on a 256-bit bus, while the Ryzen Z2 Go GPU provides 102.4 GB/s using 16 GB of LPDDR5 on a 128-bit bus. The RX 7900 GRE delivers 5.6 times the memory bandwidth.

Q: How do their power requirements differ?

A: The RX 7900 GRE has a TDP of 260 W and requires a 600 W suggested PSU with 2x 8-pin connectors, while the Ryzen Z2 Go GPU has a TDP of 28 W and requires no power connectors.

Q: What is the pixel rate and texture rate comparison?

A: The RX 7900 GRE achieves a pixel rate of 359.2 GPixel/s and a texture rate of 718.4 GTexel/s. The Ryzen Z2 Go GPU achieves 86.40 GPixel/s and 129.6 GTexel/s. The RX 7900 GRE is 4.2 times faster in pixel rate and 5.5 times faster in texture rate.

Architecture Differences

The RX 7900 GRE and the Ryzen Z2 Go GPU represent two distinct design philosophies within AMD's lineup. The RX 7900 GRE is built on the RDNA 3.0 architecture using the Navi 31 chip, codenamed Plum Bonito, part of the Navi III (RX 7000) generation. It is fabricated on a 5 nm process at TSMC, with a transistor count of 57,700 million across a 529 mm² die, yielding a transistor density of 109.1M per mm².

The Ryzen Z2 Go GPU uses the RDNA 2.0 architecture with the Rembrandt+ chip and belongs to the Console GPU (AMD) generation. It is manufactured on a 6 nm process at TSMC, with 13,100 million transistors on a 208 mm² die, resulting in a transistor density of 63.0M per mm². The RX 7900 GRE packs 4.4 times the transistors and occupies 2.5 times the die area.

Clock behavior differs significantly. The RX 7900 GRE has a base clock of 1287 MHz, a boost clock of 2245 MHz, and a game clock of 1880 MHz. The Ryzen Z2 Go GPU has a base clock of 800 MHz and a boost clock of 2700 MHz, with no game clock listed. The Ryzen Z2 Go GPU's higher boost clock reflects its lower-power design, while the RX 7900 GRE relies on its massive parallel resources.

Memory subsystems diverge sharply. The RX 7900 GRE uses 16 GB of GDDR6 on a 256-bit bus, with memory clocked at 2250 MHz (18 Gbps effective), providing 576.0 GB/s bandwidth. The Ryzen Z2 Go GPU uses 16 GB of LPDDR5 on a 128-bit bus, with memory at 800 MHz (6.4 Gbps effective), delivering 102.4 GB/s. The RX 7900 GRE's bus width is double, and its bandwidth is 5.6 times higher.

Compute resources show a wide gap. The RX 7900 GRE contains 5,120 shading units, 320 TMUs, 160 ROPs, and 80 ray tracing cores. The Ryzen Z2 Go GPU has 768 shading units, 48 TMUs, 32 ROPs, and 12 ray tracing cores. Floating-point performance follows: the RX 7900 GRE delivers 45.98 TFLOPS FP32 and 91.96 TFLOPS FP16 (2:1), while the Ryzen Z2 Go GPU delivers 4.147 TFLOPS FP32 and 8.294 TFLOPS FP16 (2:1). The RX 7900 GRE is 11.1 times faster in FP32.

Physical and power characteristics reinforce the different target markets. The RX 7900 GRE is a dual-slot card measuring 276 mm in length, 110 mm in height, and 51 mm in width, with a TDP of 260 W, requiring a 600 W PSU and 2x 8-pin connectors. The Ryzen Z2 Go GPU has no listed dimensions or slot width, a TDP of 28 W, no power connectors, and no suggested PSU. Display outputs also differ: the RX 7900 GRE offers 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C, while the Ryzen Z2 Go GPU offers only 1x USB Type-C.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between the RX 7900 GRE and the Ryzen Z2 Go GPU. The Ryzen Z2 Go GPU has an empty benchmark array, meaning there are no recorded scores for any test. The RX 7900 GRE, however, has ten recorded benchmark scores across various suites.

In 3DMark Steel Nomad DX12, the RX 7900 GRE scores 4,814. Geekbench results show an OpenCL score of 175,758 and a Vulkan score of 99,850. Passmark tests provide a broader picture: DirectX 10 scores 139, DirectX 11 scores 300, DirectX 12 scores 107, DirectX 9 scores 310, G2D scores 1,180, G3D scores 27,089, and GPU Compute scores 15,016.

The average benchmark score for the RX 7900 GRE is 32,456, placing it at the 77th percentile among all GPUs in the database. The Ryzen Z2 Go GPU sits at the 50th percentile but with an average score of 0, which reflects the absence of any measured data rather than a real performance figure.

Looking at the RX 7900 GRE's nearest rivals in the database provides context for its standing. The AMD FirePro S10000 has an average score of 32,388, which is 0.2% below the RX 7900 GRE. The AMD FirePro S9300 X2 averages 32,540, putting it 0.3% ahead. The AMD Radeon RX 590 GME averages 32,601, 0.4% ahead. The AMD Radeon Pro 570X averages 32,176, 0.9% behind. These deltas show the RX 7900 GRE sits in a tightly packed cluster where small percentage differences separate adjacent performers.

Without any recorded scores for the Ryzen Z2 Go GPU, a direct numerical comparison is impossible. The data instead shows a complete absence of measurements for the Z2 Go GPU, while the RX 7900 GRE has a full suite of results. The wins counter in the database records 0 wins for each GPU, consistent with the empty head-to-head array.

The Verdict

The data clearly separates these two GPUs into different performance classes. The RX 7900 GRE delivers 45.98 TFLOPS FP32, 576.0 GB/s memory bandwidth, and 16 GB of GDDR6 memory, with a 77th percentile ranking among all GPUs. The Ryzen Z2 Go GPU delivers 4.147 TFLOPS FP32, 102.4 GB/s bandwidth, and 16 GB of LPDDR5, with no recorded benchmark results.

The RX 7900 GRE is designed for high-performance desktop use. Its 260 W TDP, dual-slot cooler, and multiple display outputs support demanding workloads. The Ryzen Z2 Go GPU is a low-power part at 28 W with no power connectors, targeting integrated or compact systems where efficiency matters more than raw throughput.

Database records indicate the Ryzen Z2 Go GPU has not been measured in any benchmark, so its percentile of 50 reflects a default position rather than a tested result. The RX 7900 GRE's 32,456 average score and its position among rivals like the FirePro S10000 and RX 590 GME confirm it operates in a specific performance band. Users seeking maximum compute throughput should select the RX 7900 GRE. Users constrained by power budgets would choose the Ryzen Z2 Go GPU, but they should expect a substantial reduction in all measured performance categories.

Specification Differences

| Specification | AMD Radeon RX 7900 GRE | AMD Ryzen Z2 Go GPU |

|---|---|---|

| Architecture | RDNA 3.0 | RDNA 2.0 |

| Process Node | 5 nm | 6 nm |

| Transistors | 57,700 million | 13,100 million |

| Die Size | 529 mm² | 208 mm² |

| Base Clock | 1287 MHz | 800 MHz |

| Boost Clock | 2245 MHz | 2700 MHz |

| Memory Size | 16 GB | 16 GB |

| Memory Type | GDDR6 | LPDDR5 |

| Memory Bus Width | 256 bit | 128 bit |

| Memory Bandwidth | 576.0 GB/s | 102.4 GB/s |

| Shading Units | 5120 | 768 |

| TMUs | 320 | 48 |

| ROPs | 160 | 32 |

| RT Cores | 80 | 12 |

| Pixel Rate | 359.2 GPixel/s | 86.40 GPixel/s |

| Texture Rate | 718.4 GTexel/s | 129.6 GTexel/s |

| FP32 Performance | 45.98 TFLOPS | 4.147 TFLOPS |

| FP16 Performance | 91.96 TFLOPS (2:1) | 8.294 TFLOPS (2:1) |

| TDP | 260 W | 28 W |

| Power Connectors | 2x 8-pin | None |

| Suggested PSU | 600 W | None |

| Display Outputs | 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C | 1x USB Type-C |

| Release Date | 2023-07-26 | 2024-12-31 |

| Launch MSRP | 549 USD | None |

| Percentile | 77 | 50 |

| Average Benchmark Score | 32,456 | 0 |