AMD Radeon HD 7950 vs NVIDIA RTX A2000 12 GB Comparison

# Head-to-Head Benchmarks

The benchmark data places the NVIDIA RTX A2000 12 GB and the AMD Radeon HD 7950 in remarkably close overall standing, despite the nearly decade-long gap in their release dates. The RTX A2000 achieves an average benchmark score of 34,154, while the HD 7950 scores 33,951. That difference amounts to just 0.6% in favor of the NVIDIA card, a margin so slim it falls well within typical run-to-run variance for any single benchmark suite. The two cards sit at the 79th and 78th percentiles of all GPUs respectively, meaning both outperform roughly three-quarters of the graphics cards in the database.

The most significant single benchmark result for the RTX A2000 comes from the 3DMark Steel Nomad DirectX 12 test, where it posts a score of 1,309 points. This is a modern, demanding workload that stresses current-generation graphics features. The HD 7950 has no comparable result in the data, so a direct head-to-head comparison on this specific test is impossible. However, the sheer fact that the A2000 can complete this test at all, while the older card lacks any data point for it, highlights a fundamental generational gap in feature support. The A2000's DirectX 12 Ultimate (12_2) API support enables hardware-accelerated ray tracing and mesh shaders, features that the HD 7950's DirectX 12 (11_1) implementation cannot handle.

On the compute side, the RTX A2000 delivers 66,998 in Geekbench OpenCL. The HD 7950's only listed benchmark is Geekbench Metal, where it scores 33,951. These are different API paths, so they cannot be directly compared as like-for-like numbers. However, the pattern is telling: the A2000's OpenCL score is roughly twice the HD 7950's Metal score. Even accounting for API differences, the A2000's raw compute advantage is substantial. The FP32 throughput figures corroborate this: the A2000 delivers 7.987 TFLOPS versus the HD 7950's 2.867 TFLOPS, a 2.79x advantage in raw single-precision compute.

The nearest-rival data places both cards in the same performance tier. The HD 7950's closest competitor is the AMD Radeon RX 480, which scores 33,997 and sits just 0.1% ahead. The RTX A2000's closest rival is the NVIDIA RTX A1000 at 34,207, which is 0.2% ahead, followed by the TITAN V at 34,355, which is 0.6% ahead. In practical terms, both cards trade blows with the same cluster of mid-range GPUs from the RX 480 and RX 560 XT generation. The data suggests that in average aggregate performance, these two cards are functionally equivalent, despite their architectural differences.

# Architecture Differences

The architectural gulf between these two cards is enormous, reflecting nearly a decade of GPU evolution. The RTX A2000 uses the GA106 chip built on Samsung's 8 nm process, while the HD 7950 uses the Tahiti chip fabricated by TSMC on a 28 nm node. The transistor counts tell the story of density improvements: the A2000 packs 12,000 million transistors into a 276 mm² die, achieving a density of 43.5 million transistors per square millimeter. The HD 7950 crams 4,313 million transistors into a larger 352 mm² die, yielding just 12.3 million transistors per square millimeter. This represents a 3.5x improvement in transistor density, enabling the A2000 to fit nearly three times as many transistors into a smaller physical footprint.

The memory subsystems differ fundamentally. The A2000 uses 12 GB of GDDR6 on a 192-bit bus, delivering 288.0 GB/s of bandwidth. The HD 7950 uses 3 GB of GDDR5 on a wider 384-bit bus, achieving 240.0 GB/s. Despite the A2000's narrower bus, its faster memory (12 Gbps effective versus 5 Gbps effective) more than compensates, resulting in 20% higher bandwidth. The A2000 also offers four times the memory capacity, which is critical for modern workstation workloads that demand large working sets.

The compute architecture is where the cards diverge most sharply. The A2000 features 3,328 shading units, 104 texture mapping units, and 48 ROPs. It also includes 26 dedicated ray tracing cores and 104 tensor cores, making it a fully-featured Ampere-generation workstation GPU. The HD 7950 has 1,792 shading units, 112 TMUs, and only 32 ROPs. It has no ray tracing cores and no tensor cores, as those concepts did not exist in consumer GPUs at its launch. The shading unit count nearly doubles in the A2000's favor, while the TMU count slightly favors the HD 7950 at 112 versus 104.

The pixel and texture fill rates reflect these differences. The A2000 achieves 57.60 GPixel/s pixel rate and 124.8 GTexel/s texture rate. The HD 7950 manages 25.60 GPixel/s and 89.60 GTexel/s respectively. The A2000's pixel throughput advantage of 2.25x is particularly pronounced, driven by its combination of higher clocks and more ROPs. The power characteristics could not be more different: the A2000 draws just 70 W with no external power connectors, while the HD 7950 consumes 200 W and requires two 6-pin connectors. The suggested PSU rating jumps from 250 W for the A2000 to 550 W for the HD 7950.

# FAQ

Q: Which card has higher raw compute throughput?

A: The RTX A2000 delivers 7.987 TFLOPS of FP32 performance, which is 2.79x higher than the HD 7950's 2.867 TFLOPS. The A2000 also supports FP16 at a 1:1 ratio (7.987 TFLOPS), while the HD 7950 has no listed FP16 capability.

Q: How do their memory capacities and bandwidths compare?

A: The RTX A2000 offers 12 GB of GDDR6 on a 192-bit bus with 288.0 GB/s bandwidth. The HD 7950 has 3 GB of GDDR5 on a 384-bit bus with 240.0 GB/s. The A2000 provides four times the capacity and 20% more bandwidth.

Q: Which card supports newer graphics APIs?

A: The RTX A2000 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. The HD 7950 supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170. The A2000's DirectX 12 Ultimate support enables features like ray tracing and variable rate shading.

Q: What are the power requirements for each card?

A: The RTX A2000 has a 70 W TDP and requires no external power connectors, with a suggested 250 W PSU. The HD 7950 has a 200 W TDP, needs two 6-pin connectors, and requires a 550 W PSU.

Q: What is the physical size difference between the two?

A: The RTX A2000 measures 167 mm in length and 69 mm in height, making it a compact dual-slot card. The HD 7950 is 278 mm long, 111 mm high, and 38 mm wide, a substantially larger dual-slot card.

Q: How do their average benchmark scores compare to nearby GPUs?

A: Both cards cluster around the 34,000 mark. The RTX A2000 scores 34,154, just 0.2% behind the RTX A1000 and 0.1% ahead of the RX 560 XT. The HD 7950 scores 33,951, sitting 0.1% behind the RX 480 and 0.3% ahead of the RX 7700S.

# Specification Differences

| Specification | NVIDIA RTX A2000 12 GB | AMD Radeon HD 7950 |

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

| Chip | GA106 | Tahiti |

| Architecture | Ampere | GCN 1.0 |

| Process Node | 8 nm | 28 nm |

| Foundry | Samsung | TSMC |

| Transistors | 12,000 million | 4,313 million |

| Die Size | 276 mm² | 352 mm² |

| Transistor Density | 43.5M / mm² | 12.3M / mm² |

| Base Clock | 562 MHz | Not listed |

| Boost Clock | 1200 MHz | Not listed |

| Memory Clock | 1500 MHz (12 Gbps effective) | 1250 MHz (5 Gbps effective) |

| Memory Size | 12 GB | 3 GB |

| Memory Type | GDDR6 | GDDR5 |

| Memory Bus Width | 192 bit | 384 bit |

| Memory Bandwidth | 288.0 GB/s | 240.0 GB/s |

| Shading Units | 3328 | 1792 |

| TMUs | 104 | 112 |

| ROPs | 48 | 32 |

| RT Cores | 26 | None |

| Tensor Cores | 104 | None |

| Pixel Rate | 57.60 GPixel/s | 25.60 GPixel/s |

| Texture Rate | 124.8 GTexel/s | 89.60 GTexel/s |

| FP32 Performance | 7.987 TFLOPS | 2.867 TFLOPS |

| FP16 Performance | 7.987 TFLOPS (1:1) | Not listed |

| TDP | 70 W | 200 W |

| Power Connectors | None | 2x 6-pin |

| Suggested PSU | 250 W | 550 W |

| Bus Interface | PCIe 4.0 x16 | PCIe 3.0 x16 |

| Display Outputs | 4x mini-DisplayPort 1.4a | 1x DVI, 1x HDMI 1.4a, 2x mini-DisplayPort 1.2 |

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

| Vulkan Support | 1.4 | 1.2.170 |

| Dimensions | 167 mm x 69 mm | 278 mm x 111 mm x 38 mm |

| Release Date | 2021-11-22 | 2012-01-30 |

| Launch MSRP | 449 USD | 449 USD |

# Where Each One Wins

The NVIDIA RTX A2000 wins decisively in every modern compute and graphics workload category. Its 7.987 TFLOPS FP32 throughput is nearly triple that of the HD 7950, making it the clear choice for GPU-accelerated rendering, scientific simulation, and machine learning inference. The inclusion of 26 RT cores and 104 tensor cores opens up ray-traced rendering and AI-accelerated workflows that the HD 7950 simply cannot execute. The 12 GB GDDR6 memory capacity is four times larger than the HD 7950's 3 GB, which is essential for loading large datasets, high-resolution textures, and complex 3D scenes in professional applications. The A2000's 288.0 GB/s bandwidth also edges out the HD 7950's 240.0 GB/s, providing faster data movement for memory-bound tasks.

The HD 7950's wins are limited to a few narrow areas. It has slightly more texture mapping units (112 versus 104), which gives it a marginal advantage in texture-heavy workloads that are not bandwidth-limited. Its 384-bit memory bus is wider than the A2000's 192-bit bus, though the A2000's faster memory compensates. The HD 7950 also has a slightly larger die (352 mm² versus 276 mm²), but this is a result of its inefficient 28 nm process, not a performance advantage. In terms of physical connectivity, the HD 7950 offers a DVI port and HDMI 1.4a, which may be useful for legacy display setups. The A2000's four mini-DisplayPort 1.4a outputs support higher resolutions and refresh rates.

For power efficiency, the A2000 is in a completely different league. Its 70 W TDP means it can be powered entirely by the PCIe slot, with no external connectors required and a suggested PSU of only 250 W. The HD 7950's 200 W TDP and 550 W suggested PSU make it impractical for small form factor builds or low-power workstations. The A2000's compact 167 mm length and 69 mm height allow it to fit in chassis that the 278 mm long HD 7950 cannot. In any modern use case, the RTX A2000 is the superior choice. The HD 7950's only realistic advantage is in legacy software compatibility or as a collector's item, as its DirectX 12 (11_1) support and lack of ray tracing and tensor cores render it obsolete for contemporary professional workloads.