AMD Ryzen Z2 GPU vs NVIDIA GeForce RTX 4080 Mobile Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between the AMD Ryzen Z2 GPU and the NVIDIA GeForce RTX 4080 Mobile. The NVIDIA part dominates every benchmark category where measurements exist, while the AMD component carries no recorded benchmark scores in the database. This absence of data for the Ryzen Z2 GPU is itself a significant finding, as it prevents any direct comparison of compute, graphics, or API-specific workloads.

The RTX 4080 Mobile delivers an average benchmark score of 38135, placing it in the 81st percentile of all GPUs tracked by the database. Its nearest rival, the NVIDIA GeForce MX570, posts an average score of 38299, which puts the RTX 4080 Mobile at a 0.4% deficit relative to that part. Against the NVIDIA GeForce RTX 5080 Mobile, the RTX 4080 Mobile trails by 0.6% with the 5080 scoring 38349. The RTX 4080 Mobile moves ahead of the NVIDIA GeForce RTX 4070, which scores 37648, a 1.3% advantage for the 4080 Mobile. It also leads the NVIDIA Tesla P4 by 1.3%, with the Tesla P4 scoring 37628.

In individual workloads, the RTX 4080 Mobile shows its strongest results in Geekbench OpenCL with a score of 159575. The Geekbench Vulkan test produces a score of 145807, confirming strong cross-API compute performance. PassMark G3D returns a score of 24926, while PassMark GPU Compute reaches 11191. Older DirectX paths show lower scores: PassMark DirectX 11 posts 244, DirectX 9 posts 286, DirectX 10 posts 157, and DirectX 12 posts 96. The PassMark G2D score of 929 reflects 2D graphics throughput.

The Ryzen Z2 GPU has a percentile ranking of 50, with an average benchmark score of zero and no nearest rivals listed. The architecture differences between the two parts are stark. The RTX 4080 Mobile uses the AD104 chip with Ada Lovelace architecture on a 5 nm process from TSMC, while the Ryzen Z2 GPU uses the Hawk Point chip with RDNA 3.0 architecture on a 4 nm process from the same foundry. Transistor counts differ substantially: the RTX 4080 Mobile packs 35,800 million transistors on a 294 mm² die, while the Ryzen Z2 GPU contains 25,390 million transistors on a 178 mm² die. Transistor density favors the smaller AMD part at 142.6 million per mm² versus 121.8 million per mm² for NVIDIA.

Clock behavior diverges sharply. The Ryzen Z2 GPU runs a base clock of 800 MHz and boosts to 2700 MHz. The RTX 4080 Mobile starts at 1290 MHz base and boosts to 1665 MHz. Despite the lower boost ceiling, the NVIDIA part achieves far higher throughput due to its much larger execution resource pool. The Ryzen Z2 GPU has 768 shading units, 48 texture mapping units, and 32 render output units. The RTX 4080 Mobile carries 7424 shading units, 232 TMUs, and 80 ROPs. Those counts represent a 9.7x advantage in shading units, a 4.8x advantage in TMUs, and a 2.5x advantage in ROPs.

Ray tracing resources follow the same pattern. The RTX 4080 Mobile includes 58 RT cores and 232 tensor cores. The Ryzen Z2 GPU includes 12 RT cores and no tensor cores. Pixel and texture rates reflect the hardware disparity. The RTX 4080 Mobile reaches 133.2 GPixel/s and 386.3 GTexel/s, while the Ryzen Z2 GPU achieves 86.40 GPixel/s and 129.6 GTexel/s. Floating point output shows the largest gap: the RTX 4080 Mobile delivers 24.72 TFLOPS FP32 and matching 24.72 TFLOPS FP16, while the Ryzen Z2 GPU delivers 8.294 TFLOPS in both FP32 and FP16.

Memory subsystems also favor NVIDIA. The RTX 4080 Mobile uses 12 GB of GDDR6 on a 192 bit bus with 432.0 GB/s bandwidth and memory clocks of 2250 MHz, or 18 Gbps effective. The Ryzen Z2 GPU uses 16 GB of LPDDR5X on a 128 bit bus with 119.9 GB/s bandwidth and memory clocks of 937 MHz, or 7.5 Gbps effective. The NVIDIA part offers 3.6x the bandwidth despite having 4 GB less capacity. Power draw differs by a factor of nearly four: the RTX 4080 Mobile has a 110 W TDP, while the Ryzen Z2 GPU has a 28 W TDP. Both parts draw power through no external connectors and use IGP slot arrangements.

Release timing gives the AMD part a later entry. The Ryzen Z2 GPU has a release date of 2024-12-31, while the RTX 4080 Mobile shipped on 2023-01-02. The NVIDIA part belongs to the GeForce 40-series, follows the GeForce 30 Mobile generation, and has the GeForce 50 Mobile as its successor. The AMD part is classed as a Console GPU generation product with no predecessor or successor listed. Both parts remain in active production.

The Verdict

The data supports a clear split in intended usage. The RTX 4080 Mobile is the high-performance option for workloads that demand compute throughput, ray tracing, and memory bandwidth. Its 81st percentile ranking, combined with an average score of 38135, places it firmly above the median GPU in the database. The Ryzen Z2 GPU sits at the 50th percentile with no recorded benchmark scores, which means the database cannot verify any level of competitive performance for that part.

The RTX 4080 Mobile wins on every measured performance dimension. FP32 throughput stands at 24.72 TFLOPS versus 8.294 TFLOPS, a 2.98x advantage. Texture rate reaches 386.3 GTexel/s versus 129.6 GTexel/s, a 2.98x advantage. Pixel rate reaches 133.2 GPixel/s versus 86.40 GPixel/s, a 1.54x advantage. Memory bandwidth reaches 432.0 GB/s versus 119.9 GB/s, a 3.6x advantage. The RT core count of 58 versus 12 and the tensor core count of 232 versus zero give NVIDIA a decisive feature lead for ray-traced workloads and AI-accelerated tasks.

The Ryzen Z2 GPU offers advantages in efficiency and integration. Its 28 W TDP versus 110 W TDP means the AMD part draws far less power, which suits compact systems with limited cooling. The 16 GB memory capacity exceeds the RTX 4080 Mobile by 4 GB, which could benefit workloads with large working sets that fit within the slower LPDDR5X bandwidth. The 4 nm process node gives the AMD part a smaller die at 178 mm² versus 294 mm², and higher transistor density at 142.6M per mm² versus 121.8M per mm².

Users with a GPU-bound workload that requires maximum frame rates or compute throughput should select the RTX 4080 Mobile. Users building a low-power system where the GPU must fit within a 28 W envelope should select the Ryzen Z2 GPU. The data does not support a performance recommendation for the AMD part because it lacks any recorded benchmark results.

Architecture Differences

The two GPUs come from different architectural lineages. The Ryzen Z2 GPU uses AMD RDNA 3.0 on the Hawk Point chip, fabricated on a 4 nm TSMC process. The RTX 4080 Mobile uses NVIDIA Ada Lovelace on the AD104 chip, fabricated on a 5 nm TSMC process. Both use TSMC as the foundry, but the node generation differs by one step.

Execution resource counts separate the two designs by wide margins. The RTX 4080 Mobile fields 7424 shading units, 232 TMUs, and 80 ROPs. The Ryzen Z2 GPU fields 768 shading units, 48 TMUs, and 32 ROPs. The RTX 4080 Mobile also integrates 58 RT cores and 232 tensor cores, while the Ryzen Z2 GPU integrates 12 RT cores and no tensor cores. These counts directly determine the pixel, texture, and floating point rates recorded in the database.

Memory architecture differs in capacity, type, bus width, and bandwidth. The RTX 4080 Mobile pairs 12 GB of GDDR6 with a 192 bit bus, reaching 432.0 GB/s. The Ryzen Z2 GPU pairs 16 GB of LPDDR5X with a 128 bit bus, reaching 119.9 GB/s. The effective memory clock of 18 Gbps on the NVIDIA part more than doubles the 7.5 Gbps effective rate on the AMD part.

Interface and display output also differ. The RTX 4080 Mobile uses PCIe 4.0 x16 and lists display outputs as portable device dependent. The Ryzen Z2 GPU lists no bus interface and provides a single USB Type-C display output. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API feature parity exists despite the hardware differences.

Thermal design points separate the two products by 82 W. The RTX 4080 Mobile carries a 110 W TDP, while the Ryzen Z2 GPU carries a 28 W TDP. Neither requires external power connectors. The RTX 4080 Mobile has an IGP slot width designation, and the Ryzen Z2 GPU lists no slot width. Transistor count favors NVIDIA at 35,800 million versus 25,390 million, while die size favors AMD at 178 mm² versus 294 mm².

FAQ

Q: Which GPU has higher raw compute performance?

A: The NVIDIA GeForce RTX 4080 Mobile delivers 24.72 TFLOPS FP32, while the AMD Ryzen Z2 GPU delivers 8.294 TFLOPS FP32. The NVIDIA part provides 2.98x the floating point throughput.

Q: How do the memory bandwidth figures compare?

A: The RTX 4080 Mobile reaches 432.0 GB/s over a 192 bit bus with 12 GB of GDDR6. The Ryzen Z2 GPU reaches 119.9 GB/s over a 128 bit bus with 16 GB of LPDDR5X. The NVIDIA part offers 3.6x the bandwidth.

Q: What is the power draw of each GPU?

A: The RTX 4080 Mobile has a 110 W TDP. The Ryzen Z2 GPU has a 28 W TDP. The AMD part consumes 82 W less power.

Q: Do both GPUs support the same graphics APIs?

A: Yes. Both support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

Q: How does the RTX 4080 Mobile rank among all GPUs?

A: The RTX 4080 Mobile sits in the 81st percentile with an average benchmark score of 38135. Its closest rival, the NVIDIA GeForce MX570, scores 38299, a 0.4% difference.

Q: Does the Ryzen Z2 GPU have any recorded benchmark results?

A: No. The database lists no benchmark scores for the Ryzen Z2 GPU, and its average benchmark score is zero.

Where Each One Wins

The RTX 4080 Mobile wins in compute-heavy tasks. Its 24.72 TFLOPS FP32 output, 386.3 GTexel/s texture rate, and 133.2 GPixel/s pixel rate position it for high-resolution rendering and complex shading workloads. The 232 tensor cores support AI acceleration, and the 58 RT cores support ray-traced effects. The 432.0 GB/s memory bandwidth feeds these execution units without bottlenecking data transfers.

The Ryzen Z2 GPU wins in power-constrained scenarios. Its 28 W TDP allows operation in systems where the RTX 4080 Mobile's 110 W TDP would exceed thermal or power budgets. The 16 GB memory capacity exceeds the RTX 4080 Mobile by 4 GB, which may help workloads that require larger memory pools and can tolerate lower bandwidth. The 4 nm process node and 178 mm² die size indicate a physically smaller component that fits into compact designs.

The RTX 4080 Mobile also wins on market positioning. It sits in the 81st percentile of all GPUs, with benchmark scores that place it within 0.6% of the RTX 5080 Mobile and 1.3% ahead of the RTX 4070. The Ryzen Z2 GPU sits at the 50th percentile with no recorded scores, leaving its competitive standing unverified by the database.

For a user prioritizing maximum performance, the RTX 4080 Mobile is the only choice supported by data. For a user prioritizing minimum power draw and maximum memory capacity in a low-power system, the Ryzen Z2 GPU offers those specific advantages. Every measured performance metric favors NVIDIA.