AMD Ryzen Z2 GPU vs NVIDIA GeForce RTX 5070 Mobile Comparison

Head-to-Head Benchmarks

The recorded database contains benchmark scores for the NVIDIA GeForce RTX 5070 Mobile, while the AMD Ryzen Z2 GPU has no benchmark entries. This makes a direct score-for-score comparison impossible. However, the available data for the RTX 5070 Mobile can be interpreted against its nearest rivals to establish a performance baseline.

The RTX 5070 Mobile delivers an average benchmark score of 29928, placing it in the 75th percentile of all GPUs in the database. Its closest competitor is the NVIDIA GeForce RTX 3070 Ti, which scores 29945, a delta of -0.1%. This effectively places the two cards on par, with the RTX 5070 Mobile trailing by a negligible margin. Against the NVIDIA GeForce RTX 2080 Ti, the RTX 5070 Mobile leads by 0.5%, posting a score of 29928 versus 29783. The AMD Radeon RX 6800 sits slightly ahead at 30095, meaning the RTX 5070 Mobile trails by -0.6%. The AMD Radeon RX 6700 posts 30433, leaving the RTX 5070 Mobile behind by -1.7%.

Looking at specific workloads, the RTX 5070 Mobile shows notable strengths in compute-oriented tests. In Geekbench OpenCL, it records 122238 points. Its Geekbench Vulkan score reaches 116960, indicating solid cross-API performance. In Passmark's DirectX 10 test, the card scores 129, while DirectX 11 yields 192. The DirectX 12 test returns 93, and DirectX 9 scores 214. The 2D graphics test produces 896 points, while the 3D graphics test delivers 20355. Compute performance in Passmark reaches 8279.

The data indicates that the RTX 5070 Mobile is a balanced performer, capable of trading blows with desktop GPUs from previous generations. Its average score of 29928 places it within 2% of all four nearest rivals, a tight cluster that suggests performance parity rather than dominance. The Ryzen Z2 GPU, lacking any benchmark entries, cannot be compared directly, so the head-to-head record shows zero wins for each side.

FAQ

Q: How does the AMD Ryzen Z2 GPU compare to the NVIDIA GeForce RTX 5070 Mobile in raw compute power?

A: The RTX 5070 Mobile delivers 13.13 TFLOPS of FP32 performance, while the Ryzen Z2 GPU offers 8.294 TFLOPS. The RTX 5070 Mobile also leads in texture rate, with 205.2 GTexel/s versus 129.6 GTexel/s.

Q: Which GPU has more memory and what are the bandwidth implications?

A: The Ryzen Z2 GPU has 16 GB of LPDDR5X memory on a 128-bit bus, yielding 119.9 GB/s of bandwidth. The RTX 5070 Mobile has 8 GB of GDDR7 memory on the same 128-bit bus width but achieves 384.0 GB/s, over three times the bandwidth.

Q: What are the transistor and die size differences between the two chips?

A: The Ryzen Z2 GPU uses a Hawk Point chip with 25,390 million transistors on a 178 mm² die, built on a 4 nm process. The RTX 5070 Mobile uses a GB206 chip with 21,900 million transistors on a 181 mm² die, built on a 5 nm process. The Ryzen Z2 has a higher transistor density at 142.6M per mm² versus 121.0M per mm².

Q: How do the shading units, texture mapping units, and ROPs compare?

A: The RTX 5070 Mobile has 4608 shading units, 144 TMUs, and 48 ROPs. The Ryzen Z2 GPU has 768 shading units, 48 TMUs, and 32 ROPs. The RTX 5070 Mobile also features 36 RT cores and 144 tensor cores, while the Ryzen Z2 has 12 RT cores and no tensor cores.

Q: What is the power consumption difference?

A: The Ryzen Z2 GPU has a TDP of 28 W, while the RTX 5070 Mobile has a TDP of 50 W. Neither requires external power connectors.

Q: Which GPU has a higher boost clock?

A: The Ryzen Z2 GPU boosts to 2700 MHz, while the RTX 5070 Mobile boosts to 1425 MHz. However, the RTX 5070 Mobile operates at a higher base clock of 907 MHz versus 800 MHz for the Ryzen Z2.

Architecture Differences

The two GPUs represent fundamentally different design philosophies. The AMD Ryzen Z2 GPU is built on the RDNA 3.0 architecture, using a Hawk Point chip produced on TSMC's 4 nm process. It integrates 25,390 million transistors into a 178 mm² die, achieving a transistor density of 142.6M per mm². This is a console-class GPU, categorized under "Console GPU (AMD)" in the database, and is designed for low-power, integrated scenarios.

The NVIDIA GeForce RTX 5070 Mobile uses the Blackwell 2.0 architecture, with a GB206 chip fabricated on TSMC's 5 nm process. It contains 21,900 million transistors on a 181 mm² die, resulting in a lower transistor density of 121.0M per mm². This chip belongs to the GeForce 50-series and targets mobile gaming laptops, as indicated by its "GeForce 50 Mobile" generation label.

The architectural divergence is most apparent in compute resources. The RTX 5070 Mobile packs 4608 shading units, 144 TMUs, and 48 ROPs, alongside 36 RT cores and 144 tensor cores. The Ryzen Z2 GPU offers 768 shading units, 48 TMUs, and 32 ROPs, with 12 RT cores and no tensor core support. This disparity in shading units and tensor cores means the RTX 5070 Mobile is designed for heavy parallel workloads, including ray tracing and AI-accelerated features, while the Ryzen Z2 GPU focuses on efficiency and basic graphics output.

Memory architecture also differs sharply. The Ryzen Z2 uses LPDDR5X memory at 937 MHz with 7.5 Gbps effective speed, providing 119.9 GB/s of bandwidth across a 128-bit bus. The RTX 5070 Mobile employs GDDR7 at 1500 MHz with 24 Gbps effective speed, delivering 384.0 GB/s on the same bus width. The memory type and speed difference explains the bandwidth gap, which is critical for texture-heavy and high-resolution workloads.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API-level feature support is identical. The process node difference, 4 nm versus 5 nm, gives the AMD chip a slight manufacturing advantage in density, but the NVIDIA chip compensates with a larger resource allocation and faster memory.

Specification Differences

The specification table shows several fields where the two GPUs differ.

The process node differs: the Ryzen Z2 GPU is built on 4 nm, while the RTX 5070 Mobile uses 5 nm. The foundry is TSMC for both. Transistor count differs, with the AMD chip at 25,390 million and the NVIDIA chip at 21,900 million. Die size is similar, 178 mm² versus 181 mm², but transistor density favors AMD at 142.6M per mm² versus 121.0M per mm².

Clock speeds diverge significantly. The Ryzen Z2 GPU has a base clock of 800 MHz and a boost clock of 2700 MHz. The RTX 5070 Mobile has a higher base clock of 907 MHz but a lower boost clock of 1425 MHz. Memory clocks also differ: the Ryzen Z2 runs at 937 MHz with 7.5 Gbps effective, while the RTX 5070 Mobile runs at 1500 MHz with 24 Gbps effective.

Memory configuration shows the Ryzen Z2 with 16 GB of LPDDR5X, while the RTX 5070 Mobile has 8 GB of GDDR7. Both use a 128-bit bus, but bandwidth is 119.9 GB/s versus 384.0 GB/s respectively.

Compute resources differ across the board: shading units are 768 versus 4608, TMUs are 48 versus 144, ROPs are 32 versus 48, RT cores are 12 versus 36, and tensor cores are absent on the AMD side versus 144 on the NVIDIA side. Pixel rate is 86.40 GPixel/s for the Ryzen Z2 versus 68.40 GPixel/s for the RTX 5070 Mobile, an unusual case where the AMD chip leads. Texture rate reverses the order, with 129.6 GTexel/s versus 205.2 GTexel/s. FP32 and FP16 compute both show 8.294 TFLOPS for the AMD chip and 13.13 TFLOPS for the NVIDIA chip.

Power consumption differs, with the Ryzen Z2 at 28 W and the RTX 5070 Mobile at 50 W. Neither requires power connectors. The RTX 5070 Mobile uses a PCIe 5.0 x16 bus interface, while the Ryzen Z2 GPU has no listed bus interface. Display outputs differ: the Ryzen Z2 has 1x USB Type-C, while the RTX 5070 Mobile is described as "Portable Device Dependent." The RTX 5070 Mobile has a slot width of "IGP," indicating an integrated graphics package, whereas the Ryzen Z2 has no slot width listed.

Release dates also differ: the Ryzen Z2 GPU was released on December 31, 2024, while the RTX 5070 Mobile was released on April 14, 2025. The RTX 5070 Mobile has a predecessor in the GeForce 40 Mobile series, while the Ryzen Z2 has no listed predecessor or successor. Neither GPU has a launch MSRP in the database.

The Verdict

The recorded data presents a clear performance hierarchy, though the absence of benchmarks for the Ryzen Z2 GPU limits direct comparison. The RTX 5070 Mobile's average score of 29928 places it in the 75th percentile of all GPUs, with its nearest rivals all within a 2% margin. This indicates a GPU that performs at the level of desktop cards like the RTX 3070 Ti and RX 6800, making it a strong choice for mobile gaming and compute tasks.

The Ryzen Z2 GPU, by contrast, has no benchmark scores and no nearest rivals listed. Its specifications suggest a very different role. With a 28 W TDP, 16 GB of LPDDR5X memory, and 768 shading units, it is positioned as an efficient, low-power integrated solution for handheld or console-like devices. Its higher boost clock of 2700 MHz and superior pixel rate of 86.40 GPixel/s indicate it can handle 2D output competently, but its FP32 performance of 8.294 TFLOPS is roughly 37% lower than the RTX 5070 Mobile's 13.13 TFLOPS.

The RTX 5070 Mobile offers more than double the shading units, triple the TMUs, and 144 tensor cores for AI workloads. Its memory bandwidth of 384.0 GB/s dwarfs the Ryzen Z2's 119.9 GB/s, which matters for modern game textures and high-resolution rendering. The trade-off is power: the RTX 5070 Mobile consumes nearly double the TDP at 50 W versus 28 W.

The data points to a simple conclusion. Users seeking maximum graphics performance, ray tracing capability, and AI features in a mobile form factor should look to the RTX 5070 Mobile, which delivers desktop-class results. Users prioritizing power efficiency, larger memory capacity, and a lower-power integrated solution for portable devices would align with the Ryzen Z2 GPU, though its performance envelope is substantially narrower. The RTX 5070 Mobile is the clear performance leader in every compute metric except pixel rate and memory size, while the Ryzen Z2 GPU offers efficiency and capacity advantages that suit a different class of hardware.