AMD Radeon HD 7950 vs NVIDIA TITAN RTX Comparison

# AMD Radeon HD 7950 vs NVIDIA TITAN RTX

The AMD Radeon HD 7950 and NVIDIA TITAN RTX sit at opposite ends of the GPU timeline, with the former launching in early 2012 as a 28nm GCN 1.0 part and the latter arriving in late 2018 as a 12nm Turing flagship. Benchmark data shows the TITAN RTX holds a commanding lead in raw compute, yet the HD 7950 still posts a competitive Geekbench Metal score that lands it within 0.6% of its nearest rivals. The two cards share a 384-bit memory bus, but nearly every other specification diverges dramatically, from transistor count to shading units to API support. This analysis walks through the head-to-head data, architectural differences, and use-case outcomes strictly from the FACT PACK.

Head-to-Head Benchmarks

The FACT PACK lists no direct head-to-head benchmark results between these two cards, so comparison relies on their respective average benchmark scores and nearest-rival deltas. The TITAN RTX averages 31,676 across its ten benchmark entries, while the HD 7950 averages 33,951 from a single Geekbench Metal test. That single-score average places the HD 7950 in the 78th percentile of all GPUs, slightly above the TITAN RTX's 76th percentile despite the latter's far higher peak scores.

The TITAN RTX's benchmark suite spans multiple APIs and workloads: Geekbench OpenCL scores 144,858, Geekbench Vulkan scores 136,073, and 3DMark Steel Nomad DX12 scores 3,794. These numbers dwarf the HD 7950's Metal result in absolute terms, yet the HD 7950's percentile ranking suggests its single Metal workload aligns closely with modern midrange performance. The nearest rivals for the HD 7950 include the RX 480 (33,997, -0.1% delta), RX 7700S (33,849, +0.3%), RX 560 XT (34,133, -0.5%), and RTX A2000 12 GB (34,154, -0.6%). The TITAN RTX's nearest rivals cluster tighter: RTX PRO 4500 Blackwell (31,532, +0.5%), Arc Pro A30M (31,894, -0.7%), GRID M60-1Q (31,220, +1.5%), and Quadro M5000 (31,206, +1.5%).

Interpreting the deltas, the HD 7950 sits within 0.6% of four different cards spanning multiple generations, indicating its Metal score is a stable reference point rather than an outlier. The TITAN RTX's average is pulled down by low PassMark DirectX scores (147 for DX10, 189 for DX11, 88 for DX12, 223 for DX9), yet its PassMark G3D score of 20,491 and GPU compute score of 10,034 reveal where its real strength lies. The average benchmark score of 31,676 for the TITAN RTX versus 33,951 for the HD 7950 is misleading because it mixes different test suites; the TITAN RTX's OpenCL and Vulkan results are multiples of the HD 7950's Metal score, while the HD 7950 has no corresponding OpenCL or Vulkan entries to compare.

Architecture Differences

The HD 7950 utilizes the Tahiti chip built on GCN 1.0 architecture, manufactured by TSMC on a 28nm process with 4,313 million transistors across a 352 mm² die. The TITAN RTX uses the TU102 chip with Turing architecture, also from TSMC but on 12nm, packing 18,600 million transistors into a 754 mm² die. Transistor density tells the story: 12.3 million per mm² for the HD 7950 versus 24.7 million per mm² for the TITAN RTX, reflecting six years of process and design advancement.

The HD 7950 features 1,792 shading units, 112 TMUs, and 32 ROPs, while the TITAN RTX delivers 4,608 shading units, 288 TMUs, and 96 ROPs. Pixel rate scales from 25.60 GPixel/s on the HD 7950 to 169.9 GPixel/s on the TITAN RTX, and texture rate jumps from 89.60 GTexel/s to 509.8 GTexel/s. FP32 throughput rises from 2.867 TFLOPS to 16.31 TFLOPS, with the TITAN RTX additionally offering FP16 at 32.62 TFLOPS (2:1) — a capability entirely absent from the HD 7950's specification sheet.

Memory configurations share a 384-bit bus width but diverge in every other respect. The HD 7950 carries 3 GB of GDDR5 at 1250 MHz (5 Gbps effective), yielding 240.0 GB/s bandwidth. The TITAN RTX carries 24 GB of GDDR6 at 1750 MHz (14 Gbps effective), yielding 672.0 GB/s bandwidth. The TITAN RTX also introduces dedicated hardware absent from the HD 7950: 72 RT cores for ray tracing and 576 tensor cores for AI workloads, neither of which exists in the GCN 1.0 design.

API support reflects the generational gap: the HD 7950 supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170, while the TITAN RTX supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The TITAN RTX's DirectX 12 Ultimate designation includes features like ray tracing and mesh shaders that the HD 7950's 11_1 feature level cannot access. Both cards use PCIe 3.0 x16 interfaces and dual-slot cooling, but power delivery differs: the HD 7950 draws 200 W via dual 6-pin connectors with a 550 W suggested PSU, while the TITAN RTX draws 280 W via dual 8-pin connectors with a 600 W suggested PSU.

The Verdict

Benchmark data indicates the NVIDIA TITAN RTX is the overwhelmingly stronger performer in raw compute and modern API workloads. Its Geekbench OpenCL score of 144,858 and Vulkan score of 136,073 are each more than four times the HD 7950's entire average benchmark score of 33,951. The TITAN RTX's 16.31 TFLOPS FP32 throughput versus the HD 7950's 2.867 TFLOPS represents a 5.7x gap, and its 672.0 GB/s memory bandwidth versus 240.0 GB/s is a 2.8x improvement. For any workload that can use OpenCL, Vulkan, or DirectX 12 Ultimate features, the TITAN RTX is the clear choice.

The HD 7950's case rests entirely on its Geekbench Metal score of 33,951, which places it in the 78th percentile of all GPUs — higher than the TITAN RTX's 76th percentile. This suggests that in Metal-specific workloads, the HD 7950 remains surprisingly competitive, sitting within 0.6% of the RX 480, RX 7700S, RX 560 XT, and RTX A2000 12 GB. However, the TITAN RTX has no Metal benchmark entry in the FACT PACK, so a direct Metal comparison is impossible. The HD 7950's 3 GB GDDR5 memory is a severe constraint for modern titles, while the TITAN RTX's 24 GB GDDR6 accommodates large datasets and high-resolution textures.

For users prioritizing modern game support, ray tracing, tensor-based AI acceleration, or high-bandwidth compute, the TITAN RTX is the only viable option from this data. For users constrained to Metal-based applications on legacy systems, the HD 7950's percentile ranking shows it still holds its own against much newer cards. The production status for both is end-of-life, so neither represents a forward-looking purchase; the data simply documents their relative positions.

Specification Differences

| Specification | AMD Radeon HD 7950 | NVIDIA TITAN RTX |

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

| 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 | — | 1350 MHz |

| Boost clock | — | 1770 MHz |

| Memory size | 3 GB | 24 GB |

| Memory type | GDDR5 | GDDR6 |

| Memory clock | 1250 MHz (5 Gbps effective) | 1750 MHz (14 Gbps effective) |

| Memory bandwidth | 240.0 GB/s | 672.0 GB/s |

| Shading units | 1792 | 4608 |

| TMUs | 112 | 288 |

| ROPs | 32 | 96 |

| RT cores | — | 72 |

| Tensor cores | — | 576 |

| Pixel rate | 25.60 GPixel/s | 169.9 GPixel/s |

| Texture rate | 89.60 GTexel/s | 509.8 GTexel/s |

| FP32 | 2.867 TFLOPS | 16.31 TFLOPS |

| FP16 | — | 32.62 TFLOPS (2:1) |

| TDP | 200 W | 280 W |

| Power connectors | 2x 6-pin | 2x 8-pin |

| Suggested PSU | 550 W | 600 W |

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

| Vulkan | 1.2.170 | 1.4 |

| 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 |

| Length | 278 mm (10.9 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 | 2012-01-30 | 2018-12-17 |

| Launch MSRP | 449 USD | 2,499 USD |

FAQ

Q: Which card has a higher average benchmark score?

A: The AMD Radeon HD 7950 has a higher average benchmark score of 33,951 compared to the NVIDIA TITAN RTX's 31,676, though the HD 7950's score comes from a single Geekbench Metal test while the TITAN RTX averages ten different benchmarks.

Q: What is the memory capacity difference?

A: The HD 7950 has 3 GB of GDDR5 memory, while the TITAN RTX has 24 GB of GDDR6 memory, an 8x difference in capacity and a 2.8x difference in bandwidth (240.0 GB/s versus 672.0 GB/s).

Q: Does the HD 7950 support ray tracing?

A: No. The HD 7950 has no RT cores in its GCN 1.0 architecture. The TITAN RTX includes 72 RT cores and 576 tensor cores, enabling ray tracing and AI-accelerated workloads.

Q: How do their percentile rankings compare?

A: The HD 7950 ranks in the 78th percentile of all GPUs, while the TITAN RTX ranks in the 76th percentile, despite the TITAN RTX having far higher raw compute scores.

Q: What are the power requirements for each card?

A: The HD 7950 has a 200 W TDP with dual 6-pin connectors and a 550 W suggested PSU. The TITAN RTX has a 280 W TDP with dual 8-pin connectors and a 600 W suggested PSU.

Q: Which card supports newer API features?

A: The TITAN RTX supports DirectX 12 Ultimate (12_2) and Vulkan 1.4, while the HD 7950 supports DirectX 12 (11_1) and Vulkan 1.2.170, meaning the TITAN RTX can access features like ray tracing and mesh shaders that the HD 7950 cannot.

Where Each One Wins

The NVIDIA TITAN RTX wins decisively in every compute-heavy category. Its Geekbench OpenCL score of 144,858 and Vulkan score of 136,073 are the standout results, making it the clear choice for general-purpose GPU compute, scientific workloads, and any application leveraging OpenCL or Vulkan. The 16.31 TFLOPS FP32 throughput and 32.62 TFLOPS FP16 throughput enable high-performance numerical processing, while the 576 tensor cores accelerate AI inference and training tasks. The 672.0 GB/s memory bandwidth and 24 GB capacity support large datasets, high-resolution textures, and multi-tasking across demanding applications. DirectX 12 Ultimate support ensures compatibility with modern game features like ray tracing and variable rate shading, and the 169.9 GPixel/s pixel rate delivers high-resolution rendering performance.

The AMD Radeon HD 7950 wins in one specific area: Metal-based workloads. Its Geekbench Metal score of 33,951 places it in the 78th percentile of all GPUs, exceeding the TITAN RTX's 76th percentile ranking. The HD 7950's nearest rivals include the RX 480 (-0.1%), RX 7700S (+0.3%), RX 560 XT (-0.5%), and RTX A2000 12 GB (-0.6%), all within a tight 0.6% band. This indicates the HD 7950 remains a viable option for Metal-specific applications on older systems, despite its 3 GB memory limit and 2.867 TFLOPS FP32 throughput. The 240.0 GB/s memory bandwidth and 384-bit bus width provide adequate data throughput for its era, and the 25.60 GPixel/s pixel rate handles standard resolutions without issue. For legacy DirectX 11 (11_1) game libraries, the HD 7950's architecture still functions, but the TITAN RTX's superior specifications make it the better performer in that category as well. The HD 7950's 200 W TDP and dual 6-pin connectors allow installation in older power-constrained systems, whereas the TITAN RTX's 280 W TDP and dual 8-pin connectors require a more robust power supply. Ultimately, the TITAN RTX is the stronger card across nearly every metric; the HD 7950's only clear advantage is its Metal percentile ranking and lower power draw.