AMD Ryzen Z2 Go GPU vs NVIDIA GeForce RTX 5070 Comparison

The Verdict

The database comparison between the AMD Ryzen Z2 Go GPU and the NVIDIA GeForce RTX 5070 shows two designs with entirely different objectives. The RTX 5070 is a desktop-class discrete GPU that sits at the 82nd percentile of all GPUs in the database, with an average benchmark score of 40377. The Ryzen Z2 Go, in contrast, is a 28 W integrated-class part that places at the 50th percentile with no recorded benchmark scores, meaning it has no measurable performance data in the database to compare directly.

The RTX 5070 delivers 30.87 TFLOPS of FP32 compute, which is roughly 7.4 times the 4.147 TFLOPS of the Ryzen Z2 Go. Its memory bandwidth of 672.0 GB/s is more than 6.5 times the 102.4 GB/s of the AMD part. The RTX 5070 also carries 6144 shading units versus 768, 192 texture mapping units versus 48, and 80 ROPs versus 32. These figures indicate that the RTX 5070 is designed for high-resolution gaming and demanding workloads, while the Ryzen Z2 Go is oriented toward low-power, portable systems.

The RTX 5070 launched with an MSRP of 549 USD and is a dual-slot card requiring a 600 W power supply and a 16-pin connector. The Ryzen Z2 Go draws 28 W, uses no external power connectors, and outputs through a single USB Type-C port. The data suggests that the Ryzen Z2 Go is suited for handheld or ultra-compact devices where power efficiency is paramount, while the RTX 5070 is for desktop builds prioritizing raw performance.

Architecture Differences

The two GPUs come from different architectural lineages. The AMD Ryzen Z2 Go uses the Rembrandt+ chip built on RDNA 2.0 architecture, manufactured on a 6 nm process at TSMC. The NVIDIA GeForce RTX 5070 uses the GB205 chip built on Blackwell 2.0 architecture, manufactured on a 5 nm process, also at TSMC. The process node difference is small, but the transistor counts diverge sharply: the RTX 5070 packs 31,100 million transistors on a 263 mm² die, while the Ryzen Z2 Go has 13,100 million transistors on a 208 mm² die. Transistor density stands at 118.3M per mm² for the NVIDIA part versus 63.0M per mm² for the AMD part.

The RTX 5070 includes 192 tensor cores and 48 ray tracing cores, while the Ryzen Z2 Go lists 12 ray tracing cores and no tensor cores. The AMD part supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, and the RTX 5070 supports the same API set. The RTX 5070 also has a PCIe 5.0 x16 bus interface, while the Ryzen Z2 Go has no listed bus interface, consistent with its integrated or embedded positioning.

Memory architectures differ fundamentally. The Ryzen Z2 Go uses 16 GB of LPDDR5 across a 128-bit bus, resulting in 102.4 GB/s of bandwidth. The RTX 5070 uses 12 GB of GDDR7 across a 192-bit bus, delivering 672.0 GB/s. The NVIDIA part has a higher memory clock at 1750 MHz with 28 Gbps effective, versus 800 MHz with 6.4 Gbps effective for the AMD part.

FAQ

Q: Which GPU has more FP32 compute performance?

A: The RTX 5070 has 30.87 TFLOPS of FP32 performance, which is 7.4 times the 4.147 TFLOPS of the Ryzen Z2 Go.

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

A: The RTX 5070 delivers 672.0 GB/s over a 192-bit GDDR7 interface, while the Ryzen Z2 Go provides 102.4 GB/s over a 128-bit LPDDR5 interface.

Q: How do the power requirements compare?

A: The Ryzen Z2 Go has a TDP of 28 W and uses no power connectors, while the RTX 5070 has a TDP of 250 W, uses a single 16-pin connector, and requires a suggested 600 W power supply.

Q: Which GPU has a higher transistor count?

A: The RTX 5070 has 31,100 million transistors, more than double the 13,100 million in the Ryzen Z2 Go.

Q: What are the ray tracing capabilities of each?

A: The RTX 5070 has 48 ray tracing cores, while the Ryzen Z2 Go has 12 ray tracing cores.

Q: What is the release timeline for these products?

A: The Ryzen Z2 Go was released in December 2024, and the RTX 5070 was released in March 2025.

Specification Differences

The two GPUs differ across nearly every recorded specification field:

• Chip: Rembrandt+ (AMD) versus GB205 (NVIDIA)
• Architecture: RDNA 2.0 versus Blackwell 2.0
• Process node: 6 nm versus 5 nm
• Transistors: 13,100 million versus 31,100 million
• Die size: 208 mm² versus 263 mm²
• Transistor density: 63.0M / mm² versus 118.3M / mm²
• Base clock: 800 MHz versus 2325 MHz
• Boost clock: 2700 MHz versus 2512 MHz
• Memory clock: 800 MHz 6.4 Gbps effective versus 1750 MHz 28 Gbps effective
• Memory size: 16 GB versus 12 GB
• Memory type: LPDDR5 versus GDDR7
• Memory bus width: 128 bit versus 192 bit
• Memory bandwidth: 102.4 GB/s versus 672.0 GB/s
• Shading units: 768 versus 6144
• Texture mapping units: 48 versus 192
• ROP units: 32 versus 80
• Ray tracing cores: 12 versus 48
• Tensor cores: none versus 192
• Pixel rate: 86.40 GPixel/s versus 201.0 GPixel/s
• Texture rate: 129.6 GTexel/s versus 482.3 GTexel/s
• FP32: 4.147 TFLOPS versus 30.87 TFLOPS
• FP16: 8.294 TFLOPS (2:1) versus 30.87 TFLOPS (1:1)
• TDP: 28 W versus 250 W
• Slot width: not listed versus dual-slot
• Power connectors: none versus 1x 16-pin
• Suggested PSU: not listed versus 600 W
• Bus interface: not listed versus PCIe 5.0 x16
• Display outputs: 1x USB Type-C versus 1x HDMI 2.1b and 3x DisplayPort 2.1b
• Dimensions: not listed versus 245 mm length, 115 mm height, 40 mm width
• Release date: December 2024 versus March 2025

Head-to-Head Benchmarks

The database contains benchmark results for the RTX 5070, but the Ryzen Z2 Go has no recorded benchmark scores. The wins column shows zero wins for the AMD part and zero for the NVIDIA part, because no head-to-head benchmark comparisons exist in the database. However, the RTX 5070's individual benchmark results provide a clear picture of its performance profile.

In 3DMark Steel Nomad DX12, the RTX 5070 scores 5077. In Geekbench OpenCL, it scores 172660, and in Geekbench Vulkan, it scores 178923. The PassMark suite shows a G3D score of 29137, a GPU compute score of 15787, and lower scores for older DirectX versions: 320 for DirectX 9, 277 for DirectX 11, 180 for DirectX 10, and 108 for DirectX 12. The PassMark G2D score is 1305.

The RTX 5070's average benchmark score of 40377 places it at the 82nd percentile of all GPUs in the database. Its nearest rivals include the AMD Radeon Pro 580 with an average score of 40318 (0.1% behind), the AMD Radeon Pro WX 7100 with 40063 (0.8% behind), the AMD Radeon Pro 5300 with 40870 (1.2% ahead of the RTX 5070), and the NVIDIA RTX A500 Mobile with 39568 (2.0% behind). These delta values show that the RTX 5070 sits in a tight performance cluster, within roughly 2% of its nearest competitors.

The Ryzen Z2 Go, with an average benchmark score of 0 and no entries in the benchmarks array, cannot be compared numerically to the RTX 5070 in any test. Its 50th percentile ranking reflects its position relative to all GPUs in the database, but without actual scores, the data only supports qualitative observations about its architecture and power envelope. The RTX 5070's 250 W TDP and 30.87 TFLOPS suggest it is built for sustained high-throughput workloads, while the Ryzen Z2 Go's 28 W TDP and 4.147 TFLOPS indicate a design constrained by thermal and power limits. The FP16 advantage of the RTX 5070 is notable: it achieves 30.87 TFLOPS at a 1:1 ratio, whereas the Ryzen Z2 Go's FP16 throughput of 8.294 TFLOPS comes from a 2:1 ratio relative to FP32.

The pixel rate difference further illustrates the gap: the RTX 5070 renders at 201.0 GPixel/s, while the Ryzen Z2 Go manages 86.40 GPixel/s. Texture rate follows the same pattern, with the RTX 5070 at 482.3 GTexel/s against 129.6 GTexel/s for the AMD part. These rates indicate that the RTX 5070 can sustain higher fill rates and texture throughput, which matters for modern games with dense geometry and high-resolution textures. The Ryzen Z2 Go's lower rates align with its intended use in form factors where battery life and heat dissipation take priority over frame rates.