AMD Radeon RX 9070 vs NVIDIA GeForce RTX 3080 Comparison

The AMD Radeon RX 9070 and NVIDIA GeForce RTX 3080 represent two distinct generations of graphics hardware, and the benchmark data reveals a fascinating split between modern and legacy workloads. The RX 9070 wins 7 of the 10 head-to-head comparisons, but the RTX 3080 claims decisive victories in specific areas that suggest its architecture still holds advantages in certain compute and legacy API scenarios. The overall average benchmark scores are remarkably close—23,877 for the RX 9070 versus 23,172 for the RTX 3080—placing both cards in the 68th and 69th percentiles of all GPUs respectively. This near-parity in aggregate scoring masks significant swings in individual tests, where deltas range from a 74.6% AMD advantage to a 26% NVIDIA advantage.

Head-to-Head Benchmarks

The largest single victory for the AMD Radeon RX 9070 comes in the Geekbench Vulkan test, where it scores 58,705 against the RTX 3080's 33,620—a commanding 74.6% lead. This is not a marginal improvement; it indicates a fundamental advantage in Vulkan API performance that likely stems from architectural efficiency rather than raw compute power. In the 3DMark Steel Nomad DX12 test, the RX 9070's 6,290 score surpasses the RTX 3080's 4,407 by 42.7%, demonstrating modern DirectX 12 workloads strongly favor the newer RDNA 4.0 design.

The PassMark suite shows a mixed bag that reveals API-specific strengths. In DirectX 11, the RX 9070 leads 281 to 207, a 35.7% margin, while in DirectX 9 it wins 343 to 258, a 32.9% advantage. The 2D graphics test also goes AMD's way, with scores of 1,280 versus 1,054, a 21.4% improvement. However, the overall PassMark G3D score is nearly identical—25,381 for AMD versus 25,086 for NVIDIA, a mere 1.2% delta—suggesting that when averaged across all DirectX versions, the two cards are far closer than the individual API tests imply.

NVIDIA's RTX 3080 claims its most significant win in Geekbench OpenCL, scoring 152,423 against AMD's 131,539, a 13.7% advantage. This is notable because it reverses the Vulkan result, indicating NVIDIA's compute architecture excels in OpenCL while lagging in Vulkan. The PassMark DirectX 10 test also favors NVIDIA, with 170 versus 141, a 17.1% margin, and DirectX 12 shows NVIDIA ahead 100 to 74, a 26% lead. The GPU compute test is nearly tied, with AMD ahead by just 2.4% (14,737 versus 14,397), suggesting raw compute throughput is comparable despite the architectural differences.

Architecture Differences

The foundational difference lies in the manufacturing process and die design. The RX 9070 uses a 4 nm TSMC process with 53,900 million transistors packed into a 357 mm² die, yielding a transistor density of 151.0 million per mm². The RTX 3080, by contrast, uses an 8 nm Samsung process with 28,300 million transistors on a much larger 628 mm² die, achieving just 45.1 million transistors per mm². This means AMD's chip is both smaller and more densely packed, which has implications for power efficiency and thermal management.

The memory subsystems diverge significantly. The RX 9070 features 16 GB of GDDR6 on a 256-bit bus, delivering 644.6 GB/s bandwidth. The RTX 3080 has 10 GB of GDDR6X on a wider 320-bit bus, achieving 760.3 GB/s bandwidth. Despite having 6 GB less memory, NVIDIA's card offers 17.9% more bandwidth, which could benefit certain high-resolution textures or compute tasks. The bus width difference—256-bit versus 320-bit—partially explains this, but the GDDR6X memory type also contributes.

Core configurations tell a story of different design philosophies. The RTX 3080 has 8,704 shading units, 272 TMUs, and 96 ROPs, while the RX 9070 has 3,584 shading units, 224 TMUs, and 128 ROPs. NVIDIA also fields 68 RT cores and 272 tensor cores, while AMD has 56 RT cores and no tensor core equivalent listed. Despite NVIDIA having more than double the shading units, AMD's FP32 throughput of 36.13 TFLOPS exceeds NVIDIA's 29.77 TFLOPS, indicating AMD's cores are more efficient per unit. The pixel rate also favors AMD at 322.6 GPixel/s versus 164.2 GPixel/s, though texture rate is closer at 564.5 GTexel/s versus 465.1 GTexel/s.

Clock speeds and power draw reveal additional contrasts. The RX 9070 boosts to 2,520 MHz with a base of 1,330 MHz and a game clock of 2,070 MHz, while the RTX 3080 boosts to 1,710 MHz with a base of 1,440 MHz. Despite the higher clocks, AMD's TDP is 220 W versus NVIDIA's 320 W, and AMD suggests a 550 W PSU versus NVIDIA's 700 W recommendation. The RTX 3080 uses a single 12-pin connector while the RX 9070 requires two 8-pin connectors. Both are dual-slot cards, but the RTX 3080 measures 285 mm in length, 112 mm in height, and 40 mm in width, while the RX 9070's dimensions are not listed.

FAQ

Q: Why does the RX 9070 win the Vulkan benchmark by such a large margin?

A: The Geekbench Vulkan score shows a 74.6% advantage for AMD (58,705 versus 33,620). This likely reflects RDNA 4.0's optimized Vulkan driver and hardware design, as the architecture was developed years after Ampere and may implement Vulkan features more efficiently.

Q: Is the RTX 3080 still competitive despite being older?

A: Yes, in specific areas. The RTX 3080 wins Geekbench OpenCL by 13.7% and PassMark DirectX 12 by 26%. Its average benchmark score of 23,172 is only 3% behind AMD's 23,877, and both cards sit at nearly identical percentiles (68th versus 69th).

Q: Which card has more memory bandwidth?

A: The RTX 3080 has higher memory bandwidth at 760.3 GB/s compared to the RX 9070's 644.6 GB/s. This comes from its wider 320-bit bus and GDDR6X memory, even though the RX 9070 has 16 GB versus 10 GB capacity.

Q: Does the RX 9070's higher transistor density provide a real-world benefit?

A: The data suggests yes in terms of efficiency. The RX 9070 achieves higher FP32 throughput (36.13 TFLOPS) with a 220 W TDP, while the RTX 3080 delivers 29.77 TFLOPS at 320 W. This indicates AMD's 4 nm process and 151.0M/mm² density enable better performance-per-watt.

Q: How do the cards compare in legacy DirectX performance?

A: Results are mixed. The RX 9070 wins DirectX 9 by 32.9% and DirectX 11 by 35.7%, but loses DirectX 10 by 17.1% and DirectX 12 by 26%. This suggests AMD's newer architecture handles older APIs well but NVIDIA retains an edge in certain DirectX 12 workloads.

Q: What is the production status of each card?

A: The AMD Radeon RX 9070 is listed as "Active" production, released on March 5, 2025. The NVIDIA GeForce RTX 3080 is "End-of-life," released on August 31, 2020, with the GeForce 40 series as its successor.

Specification Differences

The two cards differ in nearly every core specification. The process node is 4 nm for AMD versus 8 nm for NVIDIA, and the foundries differ (TSMC versus Samsung). Transistor counts are 53,900 million versus 28,300 million, with die sizes of 357 mm² versus 628 mm². The RX 9070 has a boost clock of 2,520 MHz versus 1,710 MHz, and a base clock of 1,330 MHz versus 1,440 MHz. Memory capacity is 16 GB GDDR6 versus 10 GB GDDR6X, with bus widths of 256-bit versus 320-bit and bandwidths of 644.6 GB/s versus 760.3 GB/s.

Shading units differ dramatically: 3,584 versus 8,704. TMUs are 224 versus 272, ROPs are 128 versus 96, RT cores are 56 versus 68, and NVIDIA has 272 tensor cores while AMD lists none. Pixel rates are 322.6 GPixel/s versus 164.2 GPixel/s, and texture rates are 564.5 GTexel/s versus 465.1 GTexel/s. FP32 performance is 36.13 TFLOPS versus 29.77 TFLOPS. TDP is 220 W versus 320 W, with suggested PSUs of 550 W and 700 W. Power connectors are 2x 8-pin versus 1x 12-pin. The bus interface is PCIe 5.0 x16 versus PCIe 4.0 x16. Display outputs are 1x HDMI 2.1b and 3x DisplayPort 2.1a versus 1x HDMI 2.1 and 3x DisplayPort 1.4a. The RTX 3080 is 285 mm long, 112 mm tall, and 40 mm wide; the RX 9070's dimensions are not provided.

Where Each One Wins

The AMD Radeon RX 9070 is the clear winner in modern graphics APIs and overall efficiency. Its 74.6% Vulkan lead and 42.7% 3DMark Steel Nomad advantage indicate it is the stronger choice for current-generation games and applications that leverage these APIs. The 35.7% DirectX 11 and 32.9% DirectX 9 wins suggest backward compatibility is also solid. The 21.4% 2D graphics advantage and higher pixel rate (322.6 versus 164.2 GPixel/s) point to better performance in desktop compositing and resolution-scaling scenarios. For users prioritizing the latest API support, including DisplayPort 2.1a and PCIe 5.0, the RX 9070 is the forward-looking option.

The NVIDIA GeForce RTX 3080 excels in OpenCL compute workloads, winning by 13.7%, which could matter for scientific computing, machine learning inference, or other GPGPU tasks that rely on this API. Its 26% DirectX 12 win is notable, suggesting some DX12 titles or workloads may run better on Ampere. The 17.1% DirectX 10 advantage is relevant for older applications. The RTX 3080 also offers more memory bandwidth (760.3 versus 644.6 GB/s), which could benefit texture-heavy workloads, and its 272 tensor cores provide dedicated AI acceleration hardware that the RX 9070 lacks entirely. The larger number of shading units (8,704 versus 3,584) may help in compute tasks that scale with core count rather than clock speed.

The Verdict

The data clearly favors the AMD Radeon RX 9070 for modern gaming and general graphics performance. Its wins in 3DMark Steel Nomad, Vulkan, DirectX 11, and DirectX 9 cover the most common contemporary workloads, and its higher pixel rate, texture rate, and FP32 throughput demonstrate superior raw performance in most scenarios. The 42.7% lead in 3DMark Steel Nomad is particularly telling, as this is a modern DX12 benchmark that reflects current game engines. The RX 9070 also achieves this with a 220 W TDP versus 320 W, making it the more power-efficient choice.

However, the NVIDIA GeForce RTX 3080 remains relevant for specific use cases. Its OpenCL and DirectX 12 wins, combined with 272 tensor cores and higher memory bandwidth, make it a viable option for compute-oriented tasks, AI workloads, or applications that specifically leverage these features. The 26% DirectX 12 advantage is not trivial and could sway users running DX12-exclusive titles that favor NVIDIA's implementation. The RTX 3080's end-of-life status and lower average benchmark score (23,172 versus 23,877) suggest it is the older, less capable card overall, but it still holds niches where its architecture shines.

Ultimately, the choice depends on workload priorities. The RX 9070 is the better all-around card for gaming, modern APIs, and efficiency. The RTX 3080 is the specialist choice for OpenCL compute, tensor-core-accelerated tasks, and specific DirectX 12 scenarios. The near-identical PassMark G3D scores (25,381 versus 25,086) and GPU compute results (14,737 versus 14,397) indicate that in aggregate, these are closely matched competitors, but the RX 9070's dominance in 7 of 10 head-to-head tests makes it the stronger recommendation for most users.