AMD Radeon HD 7970 vs NVIDIA TITAN RTX Comparison

The AMD Radeon HD 7970 and NVIDIA TITAN RTX represent two very different eras of GPU design, separated by nearly seven years of architectural evolution. The data in this comparison is heavily one-sided, with the TITAN RTX winning the only shared benchmark by a massive margin, yet the HD 7970 still holds a place in the database as a historically significant part due to its own unique specifications and legacy. This analysis walks through the raw numbers, architectural differences, and what the benchmark results actually indicate for each card.

FAQ

Q: Which card has a higher average benchmark score?

A: The AMD Radeon HD 7970 has an average benchmark score of 34,541, while the NVIDIA TITAN RTX has an average score of 31,676. Despite this, the TITAN RTX wins the head-to-head benchmark by a wide margin.

Q: What is the performance gap in the shared OpenCL benchmark?

A: In the Geekbench OpenCL test, the NVIDIA TITAN RTX scored 144,858, while the AMD Radeon HD 7970 scored 34,541. The delta percentage is -76.2%, meaning the HD 7970 is 76.2% behind the TITAN RTX in this specific test.

Q: How does the memory configuration differ between the two?

A: The HD 7970 has 3 GB of GDDR5 memory on a 384-bit bus, providing 264.0 GB/s of bandwidth. The TITAN RTX has 24 GB of GDDR6 memory on the same 384-bit bus width, but with 672.0 GB/s of bandwidth.

Q: Which card has a higher transistor density?

A: The NVIDIA TITAN RTX has a higher transistor density at 24.7M per mm², compared to the AMD Radeon HD 7970's 12.3M per mm². This is despite the TITAN RTX using a larger 12 nm process node versus the HD 7970's 28 nm node.

Q: What are the direct API support differences?

A: The HD 7970 supports DirectX 12 (11_1) and Vulkan 1.2.170, while the TITAN RTX supports DirectX 12 Ultimate (12_2) and Vulkan 1.4. Both cards support OpenGL 4.6.

Q: Which card has more shading units and texture mapping units?

A: The NVIDIA TITAN RTX has 4,608 shading units and 288 TMUs, whereas the AMD Radeon HD 7970 has 2,048 shading units and 128 TMUs. The TITAN RTX also features 72 RT cores and 576 tensor cores, which the HD 7970 lacks entirely.

Architecture Differences

The AMD Radeon HD 7970 is built on the Tahiti chip using the GCN 1.0 architecture, part of the Southern Islands generation (HD 7900). It is manufactured on a 28 nm process at TSMC, with 4,313 million transistors packed into a 352 mm² die. Its transistor density is 12.3 million per mm². The card lacks any dedicated ray tracing or tensor cores, reflecting its 2012-era design. Its memory runs at 1375 MHz (5.5 Gbps effective), and it relies on a dual-slot cooler with a 1x 6-pin + 1x 8-pin power connector setup.

The NVIDIA TITAN RTX uses the TU102 chip with the Turing architecture, from the GeForce 20 generation. It is fabricated on a 12 nm process, also at TSMC, with 18,600 million transistors on a much larger 754 mm² die. The transistor density is 24.7 million per mm², more than double that of the HD 7970. The TITAN RTX includes 72 RT cores for ray tracing and 576 tensor cores for AI workloads, features that are entirely absent from the HD 7970. Its memory clock is 1750 MHz (14 Gbps effective), and it uses a dual-slot design with 2x 8-pin power connectors. Both cards use a PCIe 3.0 x16 bus interface and have the same 600 W suggested PSU.

The compute capabilities differ starkly. The HD 7970 delivers 3.789 TFLOPS of FP32 performance with no FP16 support listed. The TITAN RTX provides 16.31 TFLOPS of FP32 and 32.62 TFLOPS of FP16 (with 2:1 rate). Pixel rate for the HD 7970 is 29.60 GPixel/s, while the TITAN RTX achieves 169.9 GPixel/s. Texture rates are 118.4 GTexel/s versus 509.8 GTexel/s, respectively. These raw numbers show the TITAN RTX is dramatically more capable in every throughput metric, though the HD 7970 was competitive for its era.

Where Each One Wins

The benchmark data is unambiguous: the NVIDIA TITAN RTX wins the only head-to-head test. In Geekbench OpenCL, the TITAN RTX scores 144,858 against the HD 7970's 34,541. This is a delta of -76.2% from the perspective of the HD 7970, meaning the older card is far behind. The TITAN RTX also has a much broader benchmark portfolio, with scores in 3DMark Steel Nomad DX12 (3,794), Geekbench Vulkan (136,073), Passmark DirectX 10 (147), DirectX 11 (189), DirectX 12 (88), DirectX 9 (223), G2D (860), G3D (20,491), and GPU Compute (10,034). The HD 7970 has no comparable results in these other tests, so its only winning scenario is the absence of data.

Where the HD 7970 might "win" is in its percentile ranking. It sits at the 79th percentile among all GPUs, while the TITAN RTX is at the 76th percentile. This is a quirk of the database, as the HD 7970's average score of 34,541 is higher than the TITAN RTX's average of 31,676, likely because the TITAN RTX's average is dragged down by its low Passmark DirectX scores. For a user looking at raw compute in OpenCL, the TITAN RTX is the clear winner. For a user relying on the overall percentile, the HD 7970 appears higher-ranked, but this is misleading given the TITAN RTX's superior performance in the shared workload.

The TITAN RTX also wins on memory capacity and bandwidth, with 24 GB versus 3 GB and 672.0 GB/s versus 264.0 GB/s. This makes it suited for large datasets and higher resolutions, while the HD 7970 is limited by its smaller frame buffer. The TITAN RTX's RT and tensor cores give it capabilities in ray-traced rendering and AI inference that the HD 7970 cannot perform at all.

Specification Differences

| Specification | AMD Radeon HD 7970 | NVIDIA TITAN RTX |

|----------------|---------------------|--------------------|

| Chip | Tahiti | TU102 |

| Architecture | GCN 1.0 | Turing |

| Generation | Southern Islands (HD 7900) | GeForce 20 |

| Process Node | 28 nm | 12 nm |

| Transistors | 4,313 million | 18,600 million |

| Die Size | 352 mm² | 754 mm² |

| Transistor Density | 12.3M / mm² | 24.7M / mm² |

| Base Clock | Not listed | 1350 MHz |

| Boost Clock | Not listed | 1770 MHz |

| Memory Clock | 1375 MHz (5.5 Gbps effective) | 1750 MHz (14 Gbps effective) |

| Memory Size | 3 GB | 24 GB |

| Memory Type | GDDR5 | GDDR6 |

| Memory Bus Width | 384 bit | 384 bit |

| Memory Bandwidth | 264.0 GB/s | 672.0 GB/s |

| Shading Units | 2048 | 4608 |

| TMUs | 128 | 288 |

| ROPs | 32 | 96 |

| RT Cores | Not listed | 72 |

| Tensor Cores | Not listed | 576 |

| Pixel Rate | 29.60 GPixel/s | 169.9 GPixel/s |

| Texture Rate | 118.4 GTexel/s | 509.8 GTexel/s |

| FP32 | 3.789 TFLOPS | 16.31 TFLOPS |

| FP16 | Not listed | 32.62 TFLOPS (2:1) |

| TDP | 250 W | 280 W |

| Power Connectors | 1x 6-pin + 1x 8-pin | 2x 8-pin |

| Display Outputs | 1x DVI, 1x HDMI 1.4a, 2x mini-DisplayPort 1.2 | 1x HDMI 2.0, 3x DisplayPort 1.4a, 1x USB Type-C |

| DirectX Support | 12 (11_1) | 12 Ultimate (12_2) |

| Vulkan Support | 1.2.170 | 1.4 |

| Length | 275 mm (10.8 inches) | 267 mm (10.5 inches) |

| Height | 111 mm (4.4 inches) | 116 mm (4.6 inches) |

| Width | 38 mm (1.5 inches) | 35 mm (1.4 inches) |

| Release Date | 2012-01-08 | 2018-12-17 |

| Launch MSRP | 549 USD | 2,499 USD |

The two cards share the same memory bus width, bus interface, slot width, OpenGL version, and suggested PSU. Every other specification differs, with the TITAN RTX generally being larger, faster, and more feature-rich.

The Verdict

Based strictly on the data, the NVIDIA TITAN RTX is the superior performer. It wins the only shared benchmark by 76.2% and offers significantly more memory, bandwidth, compute throughput, and modern features like ray tracing and tensor cores. The HD 7970's higher percentile ranking (79th versus 76th) is a statistical artifact of its higher average score, which stems from having only one benchmark result. For anyone choosing between these two for actual compute tasks, the TITAN RTX is the only rational choice.

The AMD Radeon HD 7970 remains notable for its historical position as a GCN 1.0 card with a 28 nm process and 3 GB of GDDR5 memory. Its launch MSRP of 549 USD was aggressive for its time, but the card is end-of-life and cannot compete with Turing's architecture. The TITAN RTX, despite being end-of-life as well, still holds relevance due to its 24 GB frame buffer and 576 tensor cores, which are useful for AI workloads even today. The verdict is clear: the TITAN RTX wins on every measurable performance metric, and the HD 7970's only advantage is its lower launch MSRP and higher percentile ranking, which does not translate into real-world superiority.

Head-to-Head Benchmarks

The sole head-to-head benchmark is Geekbench OpenCL. The NVIDIA TITAN RTX scored 144,858, while the AMD Radeon HD 7970 scored 34,541. This results in a delta percentage of -76.2% for the HD 7970, meaning the TITAN RTX is over four times faster in raw OpenCL compute. This is a massive gap that reflects the architectural advances between 2012 and 2018.

The TITAN RTX also has its own benchmark suite that the HD 7970 lacks. In 3DMark Steel Nomad DX12, it scores 3,794. Its Geekbench Vulkan score is 136,073. Passmark results show 147 in DirectX 10, 189 in DirectX 11, 88 in DirectX 12, and 223 in DirectX 9. The G2D score is 860, the G3D score is 20,491, and the GPU compute score is 10,034. None of these tests have corresponding HD 7970 results, so no direct comparison is possible, but the TITAN RTX's numbers indicate strong performance across legacy and modern APIs.

The HD 7970's nearest rivals in the database include the NVIDIA T1000 8 GB (34561 score, -0.1% delta), NVIDIA A2 (34690, -0.4%), NVIDIA TITAN V (34355, +0.5%), and NVIDIA RTX A1000 (34207, +1%). This places the HD 7970 in a cluster of low-to-mid-range GPUs. The TITAN RTX, by contrast, is near the NVIDIA RTX PRO 4500 Blackwell (31532, +0.5%), Intel Arc Pro A30M (31894, -0.7%), NVIDIA GRID M60-1Q (31220, +1.5%), and NVIDIA Quadro M5000 (31206, +1.5%). The TITAN RTX's rivals are generally far more capable than the HD 7970's, further underscoring the performance tier difference.

In summary, the head-to-head data shows a decisive victory for the NVIDIA TITAN RTX. The AMD Radeon HD 7970's performance is anchored in 2012-era compute, and while it was a strong card then, it is outclassed in every way by the Turing-based TITAN RTX. The only shared metric—Geekbench OpenCL—tells the entire story: a 76.2% deficit is insurmountable for the HD 7970.