AMD Radeon RX 7900 XT vs NVIDIA GeForce GTX 1070 Ti Comparison

The GeForce GTX 1070 Ti and the Radeon RX 7900 XT represent two distinct eras of GPU design, separated by five years of architectural evolution. The data shows a generational chasm in raw performance, with the newer AMD card dominating most modern workloads. However, the older NVIDIA card posts a surprising victory in one specific compute metric, illustrating how different architectures prioritize different tasks. This analysis breaks down the benchmark results, architectural shifts, and specification changes that define this matchup.

Head-to-Head Benchmarks

The Radeon RX 7900 XT is the overwhelming winner in the head-to-head tests, taking 9 of the 10 benchmarks. The largest margin of victory comes in the demanding 3DMark Steel Nomad DX12 test, where the RX 7900 XT scores 5623 compared to the GTX 1070 Ti's 1471. That is a 73.8% deficit for the older card, a massive gap that reflects the modern API's heavy reliance on features the Pascal architecture simply does not have. The gap is similarly stark in PassMark DirectX 11, where the RX 7900 XT's 340 score dwarfs the 1070 Ti's 107, a 68.5% difference.

The pattern continues across other DirectX iterations. In PassMark DirectX 12, the RX 7900 XT scores 110 versus 51 for the GTX 1070 Ti, a 53.6% lead. Even in legacy APIs, the newer card holds a decisive edge: the RX 7900 XT wins PassMark DirectX 10 with a score of 158 against 90 (a 43% lead) and PassMark DirectX 9 with 322 against 207 (a 35.7% lead). The compute-oriented PassMark GPU Compute test also heavily favors the AMD card, which scores 16828 versus 7165 for the NVIDIA card, a 57.4% advantage. The overall PassMark G3D score tells a similar story, with the RX 7900 XT at 29009 and the GTX 1070 Ti at 14674, a 49.4% difference. Even the 2D performance, measured by PassMark G2D, shows the newer card ahead at 1232 versus 876, a 28.9% lead.

The single exception to AMD's dominance is Geekbench OpenCL. Here, the GTX 1070 Ti posts a score of 49219, while the RX 7900 XT manages only 12756. This is a 285.8% victory for the older NVIDIA card, a stunning reversal that is difficult to reconcile with the other results. The data suggests this specific workload is heavily optimized for the Pascal architecture's compute units, or that the RDNA 3.0 drivers are not yet fully optimized for this particular OpenCL test. This win, however, does not translate to the modern Geekbench Vulkan test, where the RX 7900 XT scores 71068 against the GTX 1070 Ti's 61006, a 14.2% advantage for AMD.

Where Each One Wins

The use-case split is clear and predictable given the benchmark data. The Radeon RX 7900 XT is the clear choice for any modern gaming scenario. Its wins in DirectX 12, DirectX 11, and Vulkan benchmarks indicate it is built for contemporary game engines and APIs. The 3DMark Steel Nomad result, which is a DX12 test, reinforces this, showing the card can handle the most demanding next-generation workloads. The strong PassMark G3D score also confirms its suitability for general 3D rendering and gaming. The RX 7900 XT is the card for high-resolution, high-detail gaming.

The GeForce GTX 1070 Ti has a single, narrow claim to victory: the specific Geekbench OpenCL compute workload. This suggests it may hold an advantage in certain legacy compute applications that rely on OpenCL and are not optimized for RDNA 3.0's architecture. However, this is a solitary data point against a backdrop of overwhelming losses. For any other purpose—gaming, general 3D, or even modern compute tasks like those in Vulkan—the data shows the GTX 1070 Ti is outclassed. The data does not support using the older card for anything but the most specific, legacy compute tasks.

Architecture Differences

The architectural divide between these two GPUs is profound, explaining the performance gap. The GTX 1070 Ti is built on the Pascal architecture, using the GP104 chip manufactured on TSMC's 16 nm process. It contains 7,200 million transistors on a 314 mm² die, giving a transistor density of 22.9M / mm². The newer RX 7900 XT uses the RDNA 3.0 architecture, with the Navi 31 chip (codenamed "Plum Bonito") fabricated on TSMC's 5 nm process. This chip packs 57,700 million transistors into a 529 mm² die, achieving a density of 109.1M / mm². The jump to a smaller process node and a larger die allows for a massive increase in transistor count.

This transistor budget translates into vastly different compute resources. The RX 7900 XT has 5,376 shading units, 336 texture mapping units (TMUs), and 192 render output units (ROPs). It also features 84 dedicated ray tracing cores, a technology entirely absent from the Pascal architecture. In contrast, the GTX 1070 Ti has only 2,432 shading units, 152 TMUs, and 64 ROPs, with no ray tracing hardware. This leads to a massive difference in theoretical throughput: the RX 7900 XT delivers 51.48 TFLOPS of FP32 compute, while the GTX 1070 Ti manages only 8.186 TFLOPS. The differences extend to other precision formats as well, with the AMD card providing 103.0 TFLOPS of FP16 performance compared to the NVIDIA card's paltry 127.9 GFLOPS. The newer card's pixel rate (459.6 GPixel/s) and texture rate (804.4 GTexel/s) are also far higher than the older card's 107.7 GPixel/s and 255.8 GTexel/s.

The memory subsystem also reflects the generational leap. The RX 7900 XT uses 20 GB of GDDR6 memory on a 320-bit bus, providing 800.0 GB/s of bandwidth. The GTX 1070 Ti is limited to 8 GB of GDDR5 on a 256-bit bus, with 256.3 GB/s of bandwidth. The API support also differs, with the RX 7900 XT supporting DirectX 12 Ultimate (12_2) and the GTX 1070 Ti only reaching DirectX 12 (12_1). Both cards support OpenGL 4.6 and Vulkan 1.4.

Specification Differences

The specification sheets reveal several key differences beyond the core architecture. The most obvious is the memory: the RX 7900 XT offers 20 GB of GDDR6, while the GTX 1070 Ti has 8 GB of GDDR5. The bus widths and bandwidths also differ, as noted. The boost clock on the RX 7900 XT is 2394 MHz, significantly higher than the GTX 1070 Ti's 1683 MHz. The RX 7900 XT also has a defined game clock of 2025 MHz, a specification the older card lacks.

Power and physical requirements are starkly different. The RX 7900 XT has a TDP of 300 W and requires 2x 8-pin power connectors, with a suggested 700 W PSU. The GTX 1070 Ti is more modest, with a 180 W TDP, a single 8-pin connector, and a 450 W suggested PSU. The physical dimensions also differ, with the RX 7900 XT being longer (276 mm) and thicker (51 mm) than the GTX 1070 Ti (267 mm long, 40 mm wide), though both are dual-slot cards. The bus interface has been updated from PCIe 3.0 x16 on the NVIDIA card to PCIe 4.0 x16 on the AMD card. Display outputs also differ, with the RX 7900 XT offering a more modern set: 1x HDMI 2.1a, 2x DisplayPort 2.1, and 1x USB Type-C, versus the GTX 1070 Ti's 1x DVI, 1x HDMI 2.0, and 3x DisplayPort 1.4a.

FAQ

Q: Which GPU is faster in DirectX 12 games?

A: The Radeon RX 7900 XT is significantly faster. In the 3DMark Steel Nomad DX12 test, it scores 5623 versus the GTX 1070 Ti's 1471, a 73.8% difference. In PassMark DirectX 12, it scores 110 versus 51, a 53.6% lead.

Q: Does the older GeForce GTX 1070 Ti win any benchmark?

A: Yes, it wins the Geekbench OpenCL test with a score of 49219, while the RX 7900 XT scores only 12756. This represents a 285.8% victory for the NVIDIA card.

Q: How do the memory configurations compare?

A: The RX 7900 XT has 20 GB of GDDR6 memory on a 320-bit bus with 800.0 GB/s bandwidth. The GTX 1070 Ti has 8 GB of GDDR5 on a 256-bit bus with 256.3 GB/s bandwidth.

Q: Are there any architectural features on the RX 7900 XT not present on the GTX 1070 Ti?

A: Yes, the RX 7900 XT features 84 dedicated ray tracing cores, which are entirely absent from the Pascal-based GTX 1070 Ti.

Q: What are the power requirements for each card?

A: The RX 7900 XT has a 300 W TDP and requires a 700 W suggested PSU, while the GTX 1070 Ti has a 180 W TDP and a 450 W suggested PSU.

Q: Which card has a higher boost clock?

A: The RX 7900 XT has a boost clock of 2394 MHz, which is notably higher than the GTX 1070 Ti's boost clock of 1683 MHz.