AMD Ryzen Z2 Go GPU vs NVIDIA GeForce RTX 4070 AD103 Comparison

Where Each One Wins

The recorded data separates these two GPUs into entirely different performance classes. The AMD Ryzen Z2 Go GPU is designed for constrained, low-power environments, with a 28 W TDP and a compact feature set built around RDNA 2.0. The NVIDIA GeForce RTX 4070 AD103 targets high-performance desktop gaming, carrying a 200 W TDP, a dual-slot cooler, and a 16-pin power connector. The benchmark results show no direct head-to-head wins for either part, but the architectural data makes the intended use case of each clear.

The AMD Ryzen Z2 Go GPU wins in efficiency-oriented scenarios. Its 28 W power envelope, combined with 16 GB of LPDDR5 memory on a 128-bit bus, positions it for handheld or embedded systems where battery life and thermal constraints take priority over raw frame rates. The 6 nm process node and 102.4 GB/s memory bandwidth indicate a design tuned for sustained operation in small form factors. Its 12 RT cores and 768 shading units provide baseline ray tracing and rasterization capability, but the 4.147 TFLOPS FP32 throughput limits it to lighter workloads or lower resolution settings.

The NVIDIA GeForce RTX 4070 AD103 wins decisively in raw compute and memory throughput. Its 29.15 TFLOPS FP32 performance is roughly seven times higher than the AMD part. The 504.2 GB/s memory bandwidth, driven by 12 GB of GDDR6X on a 192-bit bus, is nearly five times greater. The 5888 shading units, 184 TMUs, and 64 ROPs deliver pixel and texture rates that far exceed the AMD chip. The RTX 4070 also carries 184 tensor cores and 46 RT cores, making it substantially more capable for AI-accelerated workloads and ray-traced rendering.

The use-case split is clear: the AMD Ryzen Z2 Go GPU serves low-power, portable systems where the 28 W TDP and lack of external power connectors are essential. The RTX 4070 AD103 serves desktop towers with a 550 W recommended PSU, where performance per watt matters less than absolute throughput. Neither part is a substitute for the other, and the data confirms they occupy distinct market segments.

FAQ

Q: Which GPU has higher FP32 performance?

A: The NVIDIA GeForce RTX 4070 AD103 delivers 29.15 TFLOPS FP32, while the AMD Ryzen Z2 Go GPU produces 4.147 TFLOPS. The RTX 4070 is approximately seven times faster in this metric.

Q: What memory configurations do these GPUs use?

A: The AMD Ryzen Z2 Go GPU uses 16 GB of LPDDR5 on a 128-bit bus, yielding 102.4 GB/s bandwidth. The NVIDIA GeForce RTX 4070 AD103 uses 12 GB of GDDR6X on a 192-bit bus, yielding 504.2 GB/s bandwidth.

Q: How do their power requirements differ?

A: The AMD Ryzen Z2 Go GPU has a 28 W TDP and requires no power connectors. The NVIDIA GeForce RTX 4070 AD103 has a 200 W TDP, uses a single 16-pin connector, and the database suggests a 550 W PSU.

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

A: The RTX 4070 AD103 has 5888 shading units and 184 TMUs. The Ryzen Z2 Go GPU has 768 shading units and 48 TMUs. The RTX 4070 also has 64 ROPs versus 32 on the AMD part.

Q: What is the production status of each GPU?

A: The AMD Ryzen Z2 Go GPU is listed as Active production, with a release date of December 31, 2024. The NVIDIA GeForce RTX 4070 AD103 is listed as End-of-life, with a release date of February 29, 2024, and a successor in the GeForce 50 series.

Q: Do both GPUs support the same APIs?

A: Yes, both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The AMD part uses RDNA 2.0 architecture, while the NVIDIA part uses Ada Lovelace.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries for these two GPUs, with zero wins recorded for either side. However, the specification data allows for a detailed comparison of their theoretical compute ceilings.

In FP32 throughput, the RTX 4070 AD103 reaches 29.15 TFLOPS versus 4.147 TFLOPS for the Ryzen Z2 Go GPU. That is a 7.03x advantage for NVIDIA. The FP16 numbers tell a similar story: the AMD part reaches 8.294 TFLOPS using a 2:1 ratio, while the NVIDIA part sustains 29.15 TFLOPS at a 1:1 ratio. The RTX 4070 is 3.51x faster in FP16.

Texture and pixel rates follow the same pattern. The RTX 4070 delivers 455.4 GTexel/s and 158.4 GPixel/s. The Ryzen Z2 Go GPU delivers 129.6 GTexel/s and 86.40 GPixel/s. The NVIDIA part is 3.51x faster in texture fill and 1.83x faster in pixel fill. The smaller gap in pixel rate reflects the AMD part's relatively higher ROP count per shader, but the absolute numbers still heavily favor NVIDIA.

Memory bandwidth is another decisive split. The GDDR6X implementation on the RTX 4070 reaches 504.2 GB/s, while the LPDDR5 memory on the Ryzen Z2 Go GPU reaches 102.4 GB/s. That is a 4.92x difference. The memory clock difference is also large: 1313 MHz (21 Gbps effective) for NVIDIA versus 800 MHz (6.4 Gbps effective) for AMD.

Clock speeds show an interesting inversion. The Ryzen Z2 Go GPU has a boost clock of 2700 MHz, which is higher than the RTX 4070's 2475 MHz boost. The base clocks are much further apart: 1920 MHz for NVIDIA versus 800 MHz for AMD. The higher boost clock on the AMD part cannot compensate for its far smaller execution resource pool.

In ray tracing, the RTX 4070 has 46 RT cores and 184 tensor cores. The Ryzen Z2 Go GPU has 12 RT cores and no tensor cores. This makes the NVIDIA part markedly more capable in ray-traced scenes and any tensor-accelerated workload, including DLSS-style upscaling. The AMD part has no equivalent hardware for the tensor functions.

Specification Differences

The two GPUs differ in nearly every measurable specification. The process node is 5 nm for NVIDIA and 6 nm for AMD, both fabricated by TSMC. The transistor counts are 45,900 million for the RTX 4070 versus 13,100 million for the Ryzen Z2 Go GPU, a 3.5x difference. Die size is 379 mm² versus 208 mm², and transistor density is 121.1M per mm² versus 63.0M per mm².

Memory capacity favors AMD at 16 GB versus 12 GB, but memory type, bus width, and bandwidth all favor NVIDIA. The RTX 4070 uses GDDR6X on a 192-bit bus with 504.2 GB/s bandwidth. The Ryzen Z2 Go GPU uses LPDDR5 on a 128-bit bus with 102.4 GB/s bandwidth. The NVIDIA memory clock is 1313 MHz (21 Gbps effective), while the AMD memory clock is 800 MHz (6.4 Gbps effective).

The compute resources are heavily lopsided. The RTX 4070 has 5888 shading units, 184 TMUs, 64 ROPs, 46 RT cores, and 184 tensor cores. The Ryzen Z2 Go GPU has 768 shading units, 48 TMUs, 32 ROPs, and 12 RT cores, with no tensor cores. The NVIDIA part also has a higher pixel rate (158.4 GPixel/s versus 86.40 GPixel/s) and a higher texture rate (455.4 GTexel/s versus 129.6 GTexel/s).

Power and physical design differ sharply. The RTX 4070 has a 200 W TDP, a dual-slot cooler, a 240 mm length, 110 mm height, and 40 mm width, plus a 16-pin connector and a 550 W suggested PSU. The Ryzen Z2 Go GPU has a 28 W TDP, no power connectors, and no listed dimensions. The display outputs also differ: the AMD part has a single USB Type-C output, while the NVIDIA part has one HDMI 2.13 and three DisplayPort 1.4a outputs.

The bus interface differs as well. The RTX 4070 uses PCIe 4.0 x16, while the Ryzen Z2 Go GPU has no listed bus interface. The release dates are close, with AMD launching on December 31, 2024, and NVIDIA on February 29, 2024. Production status differs: AMD is Active, NVIDIA is End-of-life.

Architecture Differences

The AMD Ryzen Z2 Go GPU is built on RDNA 2.0 architecture, using the Rembrandt+ chip. The NVIDIA GeForce RTX 4070 AD103 is built on Ada Lovelace architecture, using the AD103 chip. These are fundamentally different designs with different priorities.

RDNA 2.0 is a mature architecture from AMD's console and APU lineage. It uses a 6 nm process and relies on a unified shader array with 768 shading units. The 12 RT cores provide hardware ray tracing, but the absence of tensor cores means AI acceleration is not available. The FP16 throughput of 8.294 TFLOPS is achieved via a 2:1 ratio, indicating that the hardware processes two FP16 operations per FP32 operation. The LPDDR5 memory interface is typical for integrated or low-power designs, where bandwidth is sacrificed for lower power draw and simpler board integration.

Ada Lovelace is NVIDIA's dedicated desktop GPU architecture, fabricated on a 5 nm process. It uses a much larger chip with 5888 shading units and a 1:1 FP16 ratio, meaning FP16 and FP32 throughput are identical at 29.15 TFLOPS. The 184 tensor cores are fourth-generation tensor cores designed for AI workloads, and the 46 RT cores are third-generation ray tracing cores. The GDDR6X memory interface with 504.2 GB/s bandwidth is a high-performance design aimed at feeding the large shader array.

The transistor density difference is notable: 121.1M per mm² for Ada Lovelace versus 63.0M per mm² for RDNA 2.0. This reflects both the process node advantage (5 nm versus 6 nm) and the architectural density of NVIDIA's design. The RTX 4070 packs 45,900 million transistors into 379 mm², while the Ryzen Z2 Go GPU fits 13,100 million into 208 mm². The AMD chip is smaller in absolute terms and much less dense.

The API support is identical: both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. However, the hardware capabilities behind those APIs differ significantly. The RTX 4070's tensor cores enable features that the Ryzen Z2 Go GPU cannot access, and its larger RT core count allows for more complex ray-traced scenes. The AMD part's 12 RT cores are sufficient for basic ray tracing but will struggle with the workloads the RTX 4070 handles comfortably.

The Verdict

The data indicates that these two GPUs should not be compared as direct competitors. The AMD Ryzen Z2 Go GPU is a low-power part with a 28 W TDP, 16 GB of LPDDR5 memory, and a 102.4 GB/s memory bus. It is suited for handheld consoles, thin laptops, or embedded systems where power draw is the primary constraint. Its 4.147 TFLOPS FP32 performance and 12 RT cores provide entry-level gaming capability, but the absence of tensor cores and the narrow memory bus limit its ceiling.

The NVIDIA GeForce RTX 4070 AD103 is a high-performance desktop GPU with a 200 W TDP, 12 GB of GDDR6X memory, and 504.2 GB/s bandwidth. Its 29.15 TFLOPS FP32 performance, 184 tensor cores, and 46 RT cores make it a capable choice for demanding gaming, ray tracing, and AI-accelerated workloads. The dual-slot design, 16-pin power connector, and 550 W suggested PSU confirm its desktop orientation.

For users building a desktop gaming system with a dedicated PSU and space for a dual-slot card, the RTX 4070 AD103 is the only viable option in this comparison. Its performance advantages are overwhelming across every compute metric. For users designing a portable device with no power connectors and minimal cooling, the Ryzen Z2 Go GPU is the only option that fits the power envelope. The 16 GB memory capacity on the AMD part is an advantage for memory-heavy tasks, but the bandwidth difference means the RTX 4070 will still move data faster.

The production status also matters. The Ryzen Z2 Go GPU is Active, while the RTX 4070 AD103 is End-of-life with a successor in the GeForce 50 series. This suggests the AMD part is still being shipped into new devices, while the NVIDIA part is being phased out. The launch MSRP of the RTX 4070 AD103 was 599 USD, which reflects its desktop performance class. The AMD part has no listed launch MSRP.

The benchmark database shows zero head-to-head wins for either GPU, which is consistent with their different market positions. A comparison of their specifications reveals no overlap in target use cases. The RTX 4070 AD103 is a high-end desktop GPU for users who need maximum throughput. The Ryzen Z2 Go GPU is a low-power mobile GPU for users who need maximum efficiency. The choice between them is determined entirely by the system design and power budget, not by raw performance.