AMD Ryzen Z2 A GPU vs NVIDIA GeForce RTX 4070 Comparison

The Verdict

The recorded data places these two GPUs in completely different performance classes. The NVIDIA GeForce RTX 4070 holds the 81st percentile among all GPUs in the database, while the AMD Ryzen Z2 A GPU sits at the 50th percentile. The RTX 4070 delivers an average benchmark score of 37,648, whereas the Z2 A GPU has no recorded benchmark scores in the database. This absence of benchmark data for the AMD part, combined with its 15 W TDP versus the RTX 4070's 200 W TDP, indicates that the Z2 A GPU is designed for a fundamentally different use case.

The RTX 4070 is the clear choice for any workload requiring substantial graphics throughput. Its 29.15 TFLOPS FP32 performance, 158.4 GPixel/s pixel rate, and 455.4 GTexel/s texture rate demonstrate a level of compute capability that the Z2 A GPU cannot approach, as the AMD part manages only 1.638 TFLOPS FP32, 25.60 GPixel/s, and 51.20 GTexel/s. The RTX 4070's nearest rivals in the database include the NVIDIA Tesla P4, which scores 37,628 (0.1% behind), and the AMD Radeon RX Vega 56, which scores 37,507 (0.4% behind), confirming the RTX 4070's position in the upper tier of recorded GPUs.

The AMD Ryzen Z2 A GPU, however, serves a distinct purpose. With its 15 W TDP, single USB Type-C display output, and 16 GB of LPDDR5 memory, the data suggests a low-power, integrated-class solution intended for compact or portable systems. The RTX 4070, by contrast, requires a 550 W suggested power supply, uses a dual-slot cooler, and measures 240 mm in length, making it a full-size add-in card for desktop systems.

Architecture Differences

The two GPUs employ entirely different architectures from different generations. The AMD Ryzen Z2 A GPU uses the Van Gogh chip built on RDNA 2.0 architecture, manufactured on a 7 nm process at TSMC. The NVIDIA GeForce RTX 4070 uses the AD104 chip built on Ada Lovelace architecture, manufactured on a 5 nm process, also at TSMC. The process node difference allows the RTX 4070 to pack 35,800 million transistors into a 294 mm² die, while the Z2 A GPU contains 2,400 million transistors on a 163 mm² die. Transistor density reflects this gap: the RTX 4070 achieves 121.8M transistors per mm², while the Z2 A GPU reaches only 14.7M per mm².

Core configuration differs substantially. The RTX 4070 carries 5,888 shading units, 184 texture mapping units, 64 raster operation units, 46 ray tracing cores, and 184 tensor cores. The Z2 A GPU has 512 shading units, 32 TMUs, 16 ROPs, and 8 ray tracing cores, with no tensor cores listed. Both GPUs support DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, so API feature parity exists despite the massive compute difference.

Memory subsystems are also architecturally distinct. The Z2 A GPU uses 16 GB of LPDDR5 memory on a 128-bit bus, delivering 102.4 GB/s bandwidth. The RTX 4070 uses 12 GB of GDDR6X memory on a 192-bit bus, delivering 504.2 GB/s bandwidth. The RTX 4070's memory clock runs at 1313 MHz (21 Gbps effective), while the Z2 A GPU's memory runs at 800 MHz (6.4 Gbps effective). The RTX 4070 also uses a PCIe 4.0 x16 bus interface, whereas the Z2 A GPU's bus interface is not recorded in the database.

FAQ

Q: Which GPU has higher FP32 compute performance?

A: The NVIDIA GeForce RTX 4070 delivers 29.15 TFLOPS FP32, while the AMD Ryzen Z2 A GPU delivers 1.638 TFLOPS FP32. The RTX 4070 is approximately 17.8 times faster in this metric.

Q: What is the TDP difference between the two GPUs?

A: The AMD Ryzen Z2 A GPU has a 15 W TDP, while the NVIDIA GeForce RTX 4070 has a 200 W TDP. The RTX 4070 also lists a 550 W suggested power supply requirement.

Q: How do their memory configurations compare?

A: The Z2 A GPU has 16 GB of LPDDR5 memory with a 128-bit bus and 102.4 GB/s bandwidth. The RTX 4070 has 12 GB of GDDR6X memory with a 192-bit bus and 504.2 GB/s bandwidth.

Q: What benchmark scores exist for each GPU in the database?

A: The RTX 4070 has recorded scores including 3DMark Steel Nomad DX12 at 3,854, Geekbench OpenCL at 154,858, Geekbench Vulkan at 174,152, and Passmark G3D at 26,927. The Z2 A GPU has no recorded benchmark scores in the database.

Q: What is the production status of each GPU?

A: The AMD Ryzen Z2 A GPU is listed as Active, while the NVIDIA GeForce RTX 4070 is listed as End-of-life. The RTX 4070 lists the GeForce 30 series as predecessor and GeForce 50 series as successor.

Q: Which GPU has tensor cores?

A: The NVIDIA GeForce RTX 4070 has 184 tensor cores. The AMD Ryzen Z2 A GPU has no tensor cores listed in the database.

Specification Differences

The two GPUs differ across nearly every recorded specification. The process node differs: 7 nm for the Z2 A GPU versus 5 nm for the RTX 4070. Transistor count differs by an order of magnitude: 2,400 million versus 35,800 million. Die size is 163 mm² versus 294 mm². Transistor density is 14.7M per mm² versus 121.8M per mm².

Clock speeds differ significantly. The Z2 A GPU has a base clock of 1000 MHz and boost clock of 1600 MHz. The RTX 4070 has a base clock of 1920 MHz and boost clock of 2475 MHz. Memory clocks also differ: 800 MHz (6.4 Gbps effective) for the Z2 A GPU versus 1313 MHz (21 Gbps effective) for the RTX 4070.

Memory configuration differs in size, type, bus width, and bandwidth. The Z2 A GPU uses 16 GB LPDDR5 on a 128-bit bus with 102.4 GB/s bandwidth. The RTX 4070 uses 12 GB GDDR6X on a 192-bit bus with 504.2 GB/s bandwidth.

Compute unit counts differ: 512 shading units versus 5,888, 32 TMUs versus 184, 16 ROPs versus 64, 8 RT cores versus 46, and no tensor cores versus 184. Pixel rate is 25.60 GPixel/s versus 158.4 GPixel/s. Texture rate is 51.20 GTexel/s versus 455.4 GTexel/s. FP32 is 1.638 TFLOPS versus 29.15 TFLOPS. FP16 is 3.277 TFLOPS (2:1) versus 29.15 TFLOPS (1:1).

TDP is 15 W versus 200 W. The RTX 4070 specifies a dual-slot cooler, 1x 16-pin power connector, 550 W suggested PSU, and PCIe 4.0 x16 bus interface, none of which are recorded for the Z2 A GPU. Display outputs differ: 1x USB Type-C for the Z2 A GPU versus 1x HDMI 2.1 and 3x DisplayPort 1.4a for the RTX 4070. The RTX 4070 has physical dimensions of 240 mm length, 110 mm height, and 40 mm width. The Z2 A GPU has no recorded dimensions. Production status differs: Active versus End-of-life. Release dates differ: 2024-12-31 versus 2023-04-11.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between the AMD Ryzen Z2 A GPU and the NVIDIA GeForce RTX 4070. The wins counter shows zero for both sides. However, the RTX 4070's individual benchmark scores provide a reference point for its performance tier.

The RTX 4070 records a 3DMark Steel Nomad DX12 score of 3,854. In Geekbench OpenCL, it scores 154,858, and in Geekbench Vulkan, it scores 174,152. Passmark results include DirectX 9 at 320, DirectX 10 at 139, DirectX 11 at 244, DirectX 12 at 103, G2D at 1,164, G3D at 26,927, and GPU Compute at 14,720. Its average benchmark score is 37,648.

The Z2 A GPU has no benchmark scores recorded in the database, making direct numerical comparison impossible. The RTX 4070's percentile rank of 81 versus the Z2 A GPU's 50th percentile, combined with the absence of any recorded scores for the AMD part, indicates that the RTX 4070 occupies a far higher performance tier. The RTX 4070's nearest rivals in the database include the NVIDIA Tesla P4 at 37,628 (0.1% ahead), the AMD Radeon RX Vega 56 at 37,507 (0.4% ahead), the NVIDIA GeForce RTX 4080 Mobile at 38,135 (1.3% behind), and the AMD Radeon PRO W6400 at 37,157 (1.3% ahead). These narrow deltas place the RTX 4070 in a tightly contested performance band, while the Z2 A GPU sits in a wholly separate category.

Where Each One Wins

The NVIDIA GeForce RTX 4070 wins decisively in every performance metric recorded in the database. Its FP32 throughput of 29.15 TFLOPS, pixel rate of 158.4 GPixel/s, and texture rate of 455.4 GTexel/s make it suitable for high-resolution gaming, ray-traced workloads, and compute-intensive applications. The 184 tensor cores provide dedicated AI acceleration hardware that the Z2 A GPU lacks entirely. The 504.2 GB/s memory bandwidth, delivered through GDDR6X on a 192-bit bus, supports the high data throughput demands of modern rendering pipelines. The 12 GB memory capacity, while smaller than the Z2 A GPU's 16 GB, is paired with far faster memory technology. The RTX 4070's 81st percentile ranking among all GPUs in the database confirms its position as a high-performance desktop part.

The AMD Ryzen Z2 A GPU wins in power efficiency and physical footprint. Its 15 W TDP versus the RTX 4070's 200 W TDP represents a dramatic reduction in power consumption. The Z2 A GPU's single USB Type-C display output and lack of recorded dimensions suggest an embedded or mobile form factor, appropriate for handheld or ultra-compact systems. Its 16 GB of LPDDR5 memory exceeds the RTX 4070's 12 GB capacity, which may benefit memory-bound workloads that prioritize capacity over bandwidth. The Active production status indicates ongoing availability, while the RTX 4070 is End-of-life. The Z2 A GPU's 50th percentile ranking places it in the middle of the database's GPU distribution, adequate for less demanding tasks but far from the RTX 4070's performance envelope.

The database shows no recorded benchmarks for the Z2 A GPU, so its real-world performance cannot be quantified from the available data. The RTX 4070's benchmark scores, ranging from 3,854 in 3DMark Steel Nomad DX12 to 174,152 in Geekbench Vulkan, provide concrete evidence of its capability. For users requiring maximum graphics performance, the RTX 4070 is the only option supported by recorded data. For users prioritizing minimal power draw and compact integration, the Z2 A GPU's specifications point to that direction.