AMD Ryzen Z2 A GPU vs NVIDIA GeForce RTX 5090 Comparison

The AMD Ryzen Z2 A GPU and the NVIDIA GeForce RTX 5090 occupy opposite ends of the graphics spectrum. One is a low-power, integrated-style solution aimed at compact handhelds, while the other is a flagship desktop behemoth. The database records show no overlapping benchmark results, but the specification sheets and available scores for the RTX 5090 provide a clear picture of their relative positioning.

FAQ

Q: What are the core architectural differences between the AMD Ryzen Z2 A GPU and the NVIDIA GeForce RTX 5090?

A: The AMD Ryzen Z2 A GPU is built on the RDNA 2.0 architecture, using the Van Gogh chip on a 7 nm process from TSMC. The NVIDIA GeForce RTX 5090 uses the Blackwell 2.0 architecture with the GB202 chip on a 5 nm process, also from TSMC.

Q: How much memory does each GPU have, and what type is it?

A: The AMD Ryzen Z2 A GPU has 16 GB of LPDDR5 memory on a 128-bit bus, yielding 102.4 GB/s bandwidth. The NVIDIA GeForce RTX 5090 has 32 GB of GDDR7 memory on a 512-bit bus, providing 1.79 TB/s bandwidth.

Q: What is the transistor count and die size for each chip?

A: The Van Gogh chip in the AMD Ryzen Z2 A GPU contains 2,400 million transistors on a 163 mm² die. The GB202 chip in the NVIDIA GeForce RTX 5090 contains 92,200 million transistors on a 750 mm² die.

Q: What are the power consumption figures recorded in the database?

A: The AMD Ryzen Z2 A GPU has a TDP of 15 W. The NVIDIA GeForce RTX 5090 has a TDP of 575 W and a suggested PSU rating of 950 W.

Q: Which GPU has a higher percentile ranking among all GPUs in the database?

A: The AMD Ryzen Z2 A GPU sits at the 50th percentile. The NVIDIA GeForce RTX 5090 ranks at the 92nd percentile, with an average benchmark score of 79,842.

Q: What is the release timeline for these two products?

A: The AMD Ryzen Z2 A GPU was released on December 31, 2024. The NVIDIA GeForce RTX 5090 was released on January 29, 2025.

Where Each One Wins

The database shows a stark split in intended usage. The AMD Ryzen Z2 A GPU is built for extreme efficiency. Its 15 W TDP, combined with 16 GB of LPDDR5 memory, makes it suitable for low-power, portable devices. The single USB Type-C display output reinforces this compact, mobile-focused design. The 50th percentile ranking places it in the middle of the database, indicating it is neither a performance outlier nor a weak link for its class.

The NVIDIA GeForce RTX 5090 wins decisively in raw compute and rendering workloads. Its average benchmark score of 79,842 places it in the 92nd percentile, far above the AMD part. The RTX 5090’s nearest rivals in the database include the NVIDIA Tesla P100 PCIe 16 GB with an average score of 79,605 (0.3% behind), the NVIDIA Tesla P100 PCIe 12 GB at 79,396 (0.6% behind), the AMD Radeon RX 6850M XT at 78,940 (1.1% behind), and the AMD Radeon Pro Vega 64X at 80,959 (1.4% ahead). This proximity shows the RTX 5090 competing at the very top tier of recorded GPUs.

For specific benchmark tests, the RTX 5090 delivers massive numbers: 18,355 in 3DMark Steel Nomad DX12, 334,370 in Geekbench OpenCL, and 376,728 in Geekbench Vulkan. The Passmark suite shows 39,650 in G3D and 26,756 in GPU Compute. The AMD Ryzen Z2 A GPU has no recorded benchmark scores in the database, so its wins are only inferred from its specification profile: minimal power draw, compact footprint, and adequate memory capacity for its segment.

Architecture Differences

The architectural gap is wide. AMD’s Van Gogh chip uses RDNA 2.0, a mature design focused on efficiency. It has 512 shading units, 32 texture mapping units, and 16 ROPs. It includes 8 ray tracing cores. The transistor density is 14.7 million per square millimeter, reflecting the older 7 nm node.

NVIDIA’s GB202 chip uses Blackwell 2.0, a newer architecture on a 5 nm process. It has 21,760 shading units, 680 TMUs, and 176 ROPs. Ray tracing hardware jumps to 170 cores, and the chip also includes 680 tensor cores, which the AMD part lacks entirely. Transistor density reaches 122.9 million per square millimeter. The sheer scale difference is visible in raw counts: 92,200 million transistors versus 2,400 million, and a die size of 750 mm² versus 163 mm².

The memory subsystems also diverge. The AMD GPU uses LPDDR5, a low-power memory standard, while the RTX 5090 uses GDDR7, a high-bandwidth graphics memory. The bus width difference is 128 bits versus 512 bits, and the bandwidth gap is 102.4 GB/s versus 1.79 TB/s. These architectural choices reflect the design goals: the AMD part minimizes power draw, while the NVIDIA part maximizes throughput.

Specification Differences

Clocks and compute rates differ substantially. The AMD Ryzen Z2 A GPU has a base clock of 1000 MHz and a boost clock of 1600 MHz. The RTX 5090 has a base clock of 2017 MHz and a boost clock of 2407 MHz. Memory clocks are 800 MHz (6.4 Gbps effective) for the AMD part and 1750 MHz (28 Gbps effective) for the NVIDIA part.

Pixel and texture rates show the performance gap: 25.60 GPixel/s and 51.20 GTexel/s for the AMD GPU, versus 423.6 GPixel/s and 1,636.8 GTexel/s for the RTX 5090. Floating point performance is 1.638 TFLOPS FP32 for the AMD part, while the RTX 5090 delivers 104.8 TFLOPS FP32. For FP16, the AMD GPU offers 3.277 TFLOPS (2:1 ratio), while the RTX 5090 offers 104.8 TFLOPS (1:1 ratio).

Physical and interface specifications also differ. The RTX 5090 is a dual-slot card measuring 304 mm in length, 137 mm in height, and 40 mm in width. It uses a 16-pin power connector and a PCIe 5.0 x16 interface. The AMD Ryzen Z2 A GPU has no recorded dimensions, slot width, power connector, or bus interface in the database. Display outputs are 1x USB Type-C for the AMD part, versus 1x HDMI 2.1b and 3x DisplayPort 2.1b for the NVIDIA card.

Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The RTX 5090 has a launch MSRP of 1,999 USD. The AMD part has no recorded launch MSRP.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for these two GPUs. The AMD Ryzen Z2 A GPU has an empty benchmark array and a recorded average benchmark score of zero. The RTX 5090, however, has ten recorded benchmark scores.

In 3DMark Steel Nomad DX12, the RTX 5090 scores 18,355. Geekbench results show 334,370 in OpenCL and 376,728 in Vulkan. The Passmark suite records 226 in DirectX 10, 341 in DirectX 11, 185 in DirectX 12, 395 in DirectX 9, 1,413 in G2D, 39,650 in G3D, and 26,756 in GPU Compute. These numbers place the RTX 5090 at the 92nd percentile, with an average benchmark score of 79,842.

The nearest rivals for the RTX 5090 in the database are the NVIDIA Tesla P100 PCIe 16 GB, NVIDIA Tesla P100 PCIe 12 GB, AMD Radeon RX 6850M XT, and AMD Radeon Pro Vega 64X. The RTX 5090 leads the first three by 0.3%, 0.6%, and 1.1% respectively, while trailing the Radeon Pro Vega 64X by 1.4%. These margins are small, indicating tight competition at the top tier.

For the AMD Ryzen Z2 A GPU, there are no recorded scores or rival comparisons. The 50th percentile ranking is based on its specification profile rather than actual test data. This absence of data makes direct numerical comparison impossible, but the specification gap is definitive: the RTX 5090 has roughly 64 times the shading units, 21 times the TMUs, and 11 times the ROPs. Its FP32 throughput is over 63 times higher, and its memory bandwidth is over 17 times higher.

The Verdict

The recorded data indicates two products with no points of overlap. The AMD Ryzen Z2 A GPU is designed for scenarios where power consumption is the primary constraint. Its 15 W TDP, 16 GB LPDDR5 memory, and single USB Type-C output point to handheld gaming devices or low-power embedded systems. The 50th percentile ranking suggests it performs adequately within its niche, but no benchmark scores exist to quantify that performance.

The NVIDIA GeForce RTX 5090 is a different class entirely. Its 575 W TDP, 32 GB GDDR7 memory, and 1.79 TB/s bandwidth are for high-end desktop gaming, professional rendering, and compute workloads. The 92nd percentile ranking and average benchmark score of 79,842 confirm its position near the top of the database. Its nearest rivals are within 1.4% in either direction, showing it competes at the leading edge.

A user requiring maximum frame rates, ray tracing performance, or compute throughput would choose the RTX 5090 based on its recorded scores. A user prioritizing battery life, portability, and minimal heat output would choose the AMD Ryzen Z2 A GPU based on its 15 W power envelope and compact design. The two products do not compete for the same buyer, and the database reflects that separation through their specification sheets and benchmark availability.