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

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between these two mobile graphics solutions. The NVIDIA GeForce RTX 4070 Mobile holds a significant advantage across every benchmark category where measurements exist. The AMD Ryzen Z2 Go GPU has no benchmark scores recorded in the database, which limits direct numerical comparison. However, the RTX 4070 Mobile's results provide a clear reference point.

The RTX 4070 Mobile achieves an average benchmark score of 27,435 across all recorded tests. This places it in the 73rd percentile of all GPUs tracked by the database. The AMD Ryzen Z2 Go GPU sits at the 50th percentile with an average benchmark score of zero, reflecting the absence of recorded performance data rather than actual hardware capability.

Breaking down the RTX 4070 Mobile's individual scores, the Geekbench OpenCL result of 109,197 and Vulkan result of 108,367 show strong compute performance. The PassMark G3D score of 19,587 indicates solid rasterization capabilities. The PassMark GPU Compute score of 8,399 demonstrates respectable compute throughput. DirectX 9, 10, 11, and 12 scores of 223, 116, 179, and 85 respectively map out legacy and modern API performance. The G2D score of 763 covers 2D workloads.

The nearest rivals to the RTX 4070 Mobile in the database show how tightly grouped this performance tier is. The AMD Radeon RX 6700 XT scores 27,425, which is effectively identical with a delta of 0 percent. The NVIDIA GeForce RTX 3090 scores 27,565, putting the RTX 4070 Mobile 0.5 percent behind. The NVIDIA RTX PRO 4000 Blackwell scores 27,135, leaving the RTX 4070 Mobile 1.1 percent ahead. The AMD Radeon Pro Vega 20 scores 27,839, which is 1.5 percent higher than the RTX 4070 Mobile.

These small percentage differences mean the RTX 4070 Mobile trades blows with desktop-class GPUs from previous generations. The 0.5 percent gap to the RTX 3090 is particularly notable, as that desktop card carries significantly higher power requirements. The 1.1 percent edge over the RTX PRO 4000 Blackwell and the 1.5 percent deficit to the Radeon Pro Vega 20 place the RTX 4070 Mobile in a competitive mid-to-high range segment.

The AMD Ryzen Z2 Go GPU has no nearest rivals listed in the database, which further confirms the lack of recorded benchmarks. Its 50th percentile ranking appears to be a default position rather than a measured outcome.

Where Each One Wins

The RTX 4070 Mobile wins in every measurable category because it has recorded data. The AMD Ryzen Z2 Go GPU has zero benchmark entries, so no workload-specific wins can be attributed to it from the database. This does not mean the AMD part lacks capability, but the available evidence only supports claims about the NVIDIA hardware.

For the RTX 4070 Mobile, the highest relative scores appear in compute-oriented workloads. The Geekbench OpenCL score of 109,197 and Vulkan score of 108,367 are the top results in its benchmark suite. These numbers suggest strong performance for tasks that leverage general-purpose GPU compute, such as rendering, simulation, or machine learning inference. The PassMark GPU Compute score of 8,399 reinforces this pattern, though it is lower in absolute terms than the Geekbench results due to different testing methodologies.

In gaming-oriented workloads, the PassMark G3D score of 19,587 indicates solid DirectX performance. The DirectX 11 score of 179 and DirectX 9 score of 223 show that older APIs run efficiently. The DirectX 12 score of 85 is lower, which may reflect the specific test's demands or driver optimization levels. The DirectX 10 score of 116 sits between these values. The G2D score of 763 covers 2D acceleration, which matters for desktop compositing and light productivity work.

The RTX 4070 Mobile's 73rd percentile ranking means it outperforms roughly three-quarters of all GPUs in the database. Its rivals, the RX 6700 XT and RTX 3090, sit within 0.5 percent of its average score, so real-world differences between these parts would be minimal. The RTX PRO 4000 Blackwell trails by 1.1 percent, while the Radeon Pro Vega 20 leads by 1.5 percent. These margins are small enough that specific game titles or applications could swing the result either way.

The AMD Ryzen Z2 Go GPU cannot be assigned wins in any category based on recorded data. Its architecture suggests it targets portable gaming devices, but the database contains no measurements to confirm performance characteristics. Any claim about its strengths would require inference beyond the available facts.

Architecture Differences

The AMD Ryzen Z2 Go GPU uses the Rembrandt+ chip built on RDNA 2.0 architecture. It is fabricated on a 6 nm process at TSMC. The die contains 13,100 million transistors across a 208 mm² area, yielding a transistor density of 63.0 million per square millimeter. The RDNA 2.0 architecture dates to the previous console generation and provides hardware ray tracing support through 12 ray tracing cores.

The NVIDIA GeForce RTX 4070 Mobile uses the AD106 chip built on Ada Lovelace architecture. It is fabricated on a 5 nm process at TSMC. The die contains 22,900 million transistors across a 188 mm² area, yielding a transistor density of 121.8 million per square millimeter. The Ada Lovelace architecture is NVIDIA's current generation for mobile GPUs and includes 36 ray tracing cores and 144 tensor cores.

The transistor density difference is substantial. The RTX 4070 Mobile packs nearly twice as many transistors per square millimeter compared to the Ryzen Z2 Go GPU, 121.8 million versus 63.0 million. This density advantage comes from the smaller 5 nm process node. The RTX 4070 Mobile also has more total transistors, 22,900 million versus 13,100 million, despite its smaller die area. The net effect is a much higher compute ceiling in the NVIDIA part.

The memory architectures also differ fundamentally. The Ryzen Z2 Go GPU uses LPDDR5 memory with a 128-bit bus and 102.4 GB/s bandwidth. The RTX 4070 Mobile uses GDDR6 memory with the same 128-bit bus but 256.0 GB/s bandwidth. The GDDR6 implementation delivers exactly twice the memory bandwidth of the LPDDR5 setup, which matters for texture-heavy workloads and high-resolution rendering.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. This means they share API-level feature parity for modern games and applications. The RTX 4070 Mobile adds tensor cores for AI acceleration, which the Ryzen Z2 Go GPU lacks entirely. Tensor cores enable DLSS and other neural network features, though the database does not include specific test scores for those capabilities.

The RTX 4070 Mobile's pixel rate of 81.36 GPixel/s is slightly lower than the Ryzen Z2 Go GPU's 86.40 GPixel/s. The AMD part has a higher pixel throughput despite its overall lower compute power. The texture rate tells a different story: the RTX 4070 Mobile achieves 244.1 GTexel/s versus 129.6 GTexel/s for the Ryzen Z2 Go GPU. The NVIDIA part has nearly twice the texture fill rate.

Specification Differences

The clock speeds differ significantly. The Ryzen Z2 Go GPU runs at a base clock of 800 MHz and boosts to 2700 MHz. The RTX 4070 Mobile runs at a base clock of 1395 MHz and boosts to 1695 MHz. The AMD part has a higher boost clock by over 1 GHz, but this does not compensate for the massive difference in shading units.

The shading unit count is the largest single difference. The Ryzen Z2 Go GPU has 768 shading units, while the RTX 4070 Mobile has 4,608. That is a 6x difference in raw shader count. The texture mapping units follow a similar pattern: 48 TMUs for the AMD part versus 144 for the NVIDIA part. Raster operation units total 32 for the Ryzen Z2 Go GPU and 48 for the RTX 4070 Mobile.

The FP32 compute throughput reflects these hardware differences. The Ryzen Z2 Go GPU delivers 4.147 TFLOPS, while the RTX 4070 Mobile delivers 15.62 TFLOPS. The NVIDIA part is roughly 3.8x faster in single-precision floating-point work. The FP16 performance shows a different scaling: the Ryzen Z2 Go GPU achieves 8.294 TFLOPS with a 2:1 ratio, while the RTX 4070 Mobile achieves 15.62 TFLOPS with a 1:1 ratio. The AMD part gets more relative FP16 throughput from its shaders, but the NVIDIA part still has a higher absolute FP16 number.

Memory capacity and type differ as well. The Ryzen Z2 Go GPU has 16 GB of LPDDR5, while the RTX 4070 Mobile has 8 GB of GDDR6. The AMD part has twice the memory capacity, which could benefit large datasets or high-resolution textures. However, the NVIDIA part has twice the memory bandwidth, 256.0 GB/s versus 102.4 GB/s. The effective memory clock also differs: 6.4 Gbps for the Ryzen Z2 Go GPU versus 16 Gbps for the RTX 4070 Mobile.

Power consumption shows a stark contrast. The Ryzen Z2 Go GPU has a TDP of 28 W, while the RTX 4070 Mobile has a TDP of 115 W. This 4x difference in power envelope explains much of the performance gap. The AMD part is designed for battery-efficient portable devices, while the NVIDIA part targets thicker gaming laptops with robust cooling.

The bus interface differs: the RTX 4070 Mobile uses PCIe 4.0 x8, while the Ryzen Z2 Go GPU has no recorded bus interface. The display outputs also differ: the Ryzen Z2 Go GPU has 1x USB Type-C, while the RTX 4070 Mobile has portable device dependent outputs. The RTX 4070 Mobile is classified as an IGP (integrated graphics processor) in slot width terms, while the Ryzen Z2 Go GPU has no slot width recorded.

The release dates place these parts in different generations. The Ryzen Z2 Go GPU launched on 2024-12-31, while the RTX 4070 Mobile launched on 2023-01-02. The RTX 4070 Mobile has a predecessor in the GeForce 30 Mobile series and a successor in the GeForce 50 Mobile series. The Ryzen Z2 Go GPU has no recorded predecessor or successor.

FAQ

Q: Which GPU has more memory bandwidth?

A: The NVIDIA GeForce RTX 4070 Mobile has 256.0 GB/s bandwidth, exactly double the 102.4 GB/s of the AMD Ryzen Z2 Go GPU.

Q: How much higher is the RTX 4070 Mobile's FP32 performance?

A: The RTX 4070 Mobile delivers 15.62 TFLOPS compared to 4.147 TFLOPS for the Ryzen Z2 Go GPU, making it approximately 3.8x faster in single-precision compute.

Q: Does the AMD Ryzen Z2 Go GPU have more memory capacity?

A: Yes, the Ryzen Z2 Go GPU has 16 GB of LPDDR5, while the RTX 4070 Mobile has 8 GB of GDDR6.

Q: What are the power consumption figures?

A: The Ryzen Z2 Go GPU has a 28 W TDP, and the RTX 4070 Mobile has a 115 W TDP.

Q: Which GPU has more shading units?

A: The RTX 4070 Mobile has 4,608 shading units, while the Ryzen Z2 Go GPU has 768 shading units.

Q: What is the RTX 4070 Mobile's average benchmark score and percentile?

A: The RTX 4070 Mobile has an average benchmark score of 27,435 and sits in the 73rd percentile of all GPUs in the database.

The Verdict

The recorded data points to a clear performance hierarchy. The NVIDIA GeForce RTX 4070 Mobile is the faster GPU by every measurable metric, with an average benchmark score of 27,435 and a 73rd percentile ranking. Its nearest rivals include the RTX 3090, RX 6700 XT, RTX PRO 4000 Blackwell, and Radeon Pro Vega 20, all within 1.5 percent of its score. This places it in a performance tier that competes with desktop GPUs from recent generations.

The AMD Ryzen Z2 Go GPU has no recorded benchmarks, so its actual performance cannot be assessed from the database. Its 50th percentile ranking and zero average score reflect missing data rather than measured capability. The hardware specifications show a part designed for efficiency, with a 28 W TDP and 16 GB of LPDDR5 memory. The 768 shading units and 4.147 TFLOPS FP32 throughput suggest entry-level to mid-range performance, but no test results confirm this.

For users who prioritize raw performance, the RTX 4070 Mobile is the obvious choice based on available evidence. It delivers 15.62 TFLOPS FP32, 15.62 TFLOPS FP16, 244.1 GTexel/s texture rate, and 256.0 GB/s memory bandwidth. These numbers place it far ahead of the Ryzen Z2 Go GPU in compute-heavy workloads, gaming, and content creation tasks.

For users who prioritize battery life and portability, the Ryzen Z2 Go GPU has a compelling efficiency profile. Its 28 W TDP is less than a quarter of the RTX 4070 Mobile's 115 W TDP. The 16 GB memory capacity exceeds the RTX 4070 Mobile's 8 GB, which could matter for specific workloads that require large working sets. The higher boost clock of 2700 MHz versus 1695 MHz suggests the AMD part can scale well within its power budget.

The database lacks head-to-head benchmark results between these two GPUs, so direct comparisons rely on the RTX 4070 Mobile's standalone scores and the architectural differences. The RTX 4070 Mobile's 73rd percentile ranking and tight grouping with desktop-class rivals indicate it belongs in a higher performance class. The Ryzen Z2 Go GPU's specifications align with a lower-power, more portable segment.

Buyers should match the GPU to the intended use case. The RTX 4070 Mobile suits gaming laptops where sustained performance and high frame rates matter more than battery life. The Ryzen Z2 Go GPU suits handheld or ultraportable devices where efficiency and capacity take priority. The data does not support a single universal recommendation, but it does show a substantial performance gap in favor of the NVIDIA part.