AMD Radeon HD 7950 vs NVIDIA T1000 Comparison

# NVIDIA T1000 vs AMD Radeon HD 7950

The NVIDIA T1000 and AMD Radeon HD 7950 represent two very different eras of GPU design, separated by nearly a decade of architectural evolution. The T1000, built on Turing architecture with a 12 nm process, delivers an average benchmark score of 36289, placing it in the 80th percentile of all GPUs. The HD 7950, based on GCN 1.0 on a 28 nm process, scores 33951, landing in the 78th percentile. This 2338-point gap translates to a meaningful performance difference, but the real story lies in how each card achieves its results—through radically different design philosophies, power envelopes, and feature sets.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA T1000 scores 36289 on average, compared to the AMD Radeon HD 7950's 33951, giving the T1000 a lead of approximately 6.9% based on the deltaPct values from their nearest rivals.

Q: How do the memory subsystems compare?

A: The HD 7950 offers 3 GB of GDDR5 memory on a 384-bit bus with 240.0 GB/s bandwidth, while the T1000 has 4 GB of GDDR6 on a 128-bit bus with 160.0 GB/s. The HD 7950 has 50% more bandwidth, but the T1000 has 33% more capacity.

Q: What are the power requirements for each card?

A: The T1000 has a 50 W TDP with no power connectors and a suggested 250 W PSU, while the HD 7950 has a 200 W TDP requiring two 6-pin connectors and a suggested 550 W PSU. The T1000 uses 75% less power.

Q: Which card supports newer graphics APIs?

A: The T1000 supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4, while the HD 7950 supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170. The T1000 has a higher DirectX feature level and a newer Vulkan version.

Q: How do their physical dimensions differ?

A: The T1000 measures 156 mm in length and 69 mm in height as a single-slot card, while the HD 7950 is 278 mm long, 111 mm tall, and 38 mm wide, taking up two slots. The HD 7950 is over 78% longer.

Q: What is the release date gap between these two products?

A: The HD 7950 was released on 2012-01-30, while the T1000 came out on 2021-05-05, a gap of over nine years.

Architecture Differences

The two GPUs employ fundamentally different architectures that reflect their respective design eras. The T1000 uses the TU117 chip based on Turing architecture, manufactured on a 12 nm process at TSMC. It packs 4,700 million transistors into a 200 mm² die, achieving a transistor density of 23.5 million per mm². The HD 7950 uses the Tahiti chip based on GCN 1.0, built on a 28 nm process, also at TSMC, with 4,313 million transistors spread across a much larger 352 mm² die, resulting in a density of just 12.3 million per mm².

The compute configuration differs dramatically. The T1000 has 896 shading units, 56 TMUs, and 32 ROPs, while the HD 7950 has 1792 shading units, 112 TMUs, and 32 ROPs. The HD 7950 has exactly twice the shading units and TMUs, yet the T1000 achieves higher pixel rate—44.64 GPixel/s versus 25.60 GPixel/s—due to its higher clocks and more efficient architecture. In texture rate, the HD 7950 wins at 89.60 GTexel/s versus the T1000's 78.12 GTexel/s.

Clock speeds tell a story of efficiency gains. The T1000 has a base clock of 1065 MHz and boost of 1395 MHz, while the HD 7950's base and boost clocks are not specified in the data. The T1000's FP32 performance is 2.500 TFLOPS, lower than the HD 7950's 2.867 TFLOPS, yet the T1000 achieves better benchmark results—suggesting architectural efficiency compensates for raw compute. The T1000 also supports FP16 at 5.000 TFLOPS (2:1 ratio), a feature the HD 7950 lacks entirely.

Memory architecture diverges significantly. The T1000 uses 4 GB of GDDR6 at 1250 MHz with 10 Gbps effective speed on a 128-bit bus, yielding 160.0 GB/s bandwidth. The HD 7950 uses 3 GB of GDDR5 at 1250 MHz with 5 Gbps effective speed on a 384-bit bus, yielding 240.0 GB/s. The HD 7950's wider bus provides 50% more bandwidth, but the T1000's newer memory technology doubles effective data rate per pin.

Power efficiency represents the starkest architectural difference. The T1000 runs at 50 W TDP, fitting in a single slot with no power connectors. The HD 7950 draws 200 W, requires dual-slot cooling, and needs two 6-pin power connectors. The suggested PSU ratings are 250 W versus 550 W, respectively. The T1000 delivers 725.8 points per watt in average benchmark score, while the HD 7950 delivers just 169.8 points per watt—a 4.3x efficiency advantage for the newer card.

The Verdict

The data clearly indicates that the NVIDIA T1000 is the superior performer in raw benchmark terms, with an average score of 36289 versus 33951 for the AMD Radeon HD 7950. This places the T1000 in the 80th percentile of all GPUs, two points above the HD 7950's 78th percentile. The T1000's nearest rivals include the AMD Radeon RX 5300M (36529, -0.7%) and NVIDIA GeForce GTX TITAN X (36530, -0.7%), showing it sits just below those cards. The HD 7950's closest competitor is the AMD Radeon RX 480 (33997, -0.1%), indicating it performs nearly identically to that much newer card.

For users prioritizing efficiency, the T1000 is the clear choice: 50 W TDP, single-slot design, no external power needed, and a suggested 250 W PSU means it can fit into compact systems where the HD 7950's 200 W draw and dual-slot footprint would be prohibitive. The T1000 also offers superior API support with DirectX 12 (12_1) and Vulkan 1.4, making it more future-proof for modern workloads.

The HD 7950 retains advantages in specific areas: its 240.0 GB/s bandwidth is 50% higher than the T1000's 160.0 GB/s, which could benefit bandwidth-sensitive workloads. Its 2.867 TFLOPS FP32 compute exceeds the T1000's 2.500 TFLOPS by 14.7%. However, these theoretical advantages do not translate into better real-world benchmark results, as the T1000 outperforms it in average score.

The HD 7950's 3 GB memory capacity is smaller than the T1000's 4 GB, and its GDDR5 technology is older. For modern applications requiring more than 3 GB of VRAM, the T1000 has a clear edge. The HD 7950's 278 mm length and 111 mm height make it a much larger card physically, requiring more case space and potentially causing compatibility issues in smaller builds.

Specification Differences

| Specification | NVIDIA T1000 | AMD Radeon HD 7950 |

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

| Architecture | Turing | GCN 1.0 |

| Process Node | 12 nm | 28 nm |

| Transistors | 4,700 million | 4,313 million |

| Die Size | 200 mm² | 352 mm² |

| Transistor Density | 23.5M / mm² | 12.3M / mm² |

| Base Clock | 1065 MHz | Not specified |

| Boost Clock | 1395 MHz | Not specified |

| Memory Speed | 10 Gbps effective | 5 Gbps effective |

| Memory Size | 4 GB | 3 GB |

| Memory Type | GDDR6 | GDDR5 |

| Memory Bus Width | 128 bit | 384 bit |

| Memory Bandwidth | 160.0 GB/s | 240.0 GB/s |

| Shading Units | 896 | 1792 |

| TMUs | 56 | 112 |

| ROPs | 32 | 32 |

| Pixel Rate | 44.64 GPixel/s | 25.60 GPixel/s |

| Texture Rate | 78.12 GTexel/s | 89.60 GTexel/s |

| FP32 Performance | 2.500 TFLOPS | 2.867 TFLOPS |

| FP16 Performance | 5.000 TFLOPS | Not specified |

| TDP | 50 W | 200 W |

| Slot Width | Single-slot | Dual-slot |

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

| Suggested PSU | 250 W | 550 W |

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

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

| Vulkan Support | 1.4 | 1.2.170 |

| Length | 156 mm | 278 mm |

| Height | 69 mm | 111 mm |

| Width | Not specified | 38 mm |

| Release Date | 2021-05-05 | 2012-01-30 |

| Launch MSRP | Not specified | 449 USD |

Head-to-Head Benchmarks

The T1000's average benchmark score of 36289 stands 2338 points higher than the HD 7950's 33951, an improvement of approximately 6.9%. The T1000 achieves this in the 80th percentile of all GPUs, while the HD 7950 sits at the 78th percentile. In terms of nearest rival comparisons, the T1000 trails the AMD Radeon RX 5300M by 0.7% and the NVIDIA GeForce GTX TITAN X by 0.7%, while leading the AMD Radeon Pro Duo by 1.2% and the NVIDIA Quadro GV100 by 2.2%. The HD 7950 essentially matches the AMD Radeon RX 480 with a deltaPct of -0.1%, runs 0.3% ahead of the AMD Radeon RX 7700S, and trails the AMD Radeon RX 560 XT by 0.5% and NVIDIA RTX A2000 12 GB by 0.6%.

The T1000 demonstrates its strongest advantage in efficiency-driven metrics. Its pixel rate of 44.64 GPixel/s is 74.4% higher than the HD 7950's 25.60 GPixel/s, despite the HD 7950 having identical ROP counts. This indicates the T1000's architecture processes pixels far more efficiently. The T1000 also achieves its texture rate of 78.12 GTexel/s with only 56 TMUs, while the HD 7950's 112 TMUs produce 89.60 GTexel/s—a 14.7% advantage that requires double the texture units.

The memory bandwidth situation presents an interesting contradiction. The HD 7950's 240.0 GB/s bandwidth exceeds the T1000's 160.0 GB/s by 50%, yet the T1000 still wins in overall benchmarks. This suggests the T1000's memory compression and caching techniques compensate for lower raw bandwidth. The T1000's GDDR6 memory operates at 10 Gbps effective versus the HD 7950's 5 Gbps, meaning each memory pin on the T1000 transfers data twice as fast.

In compute performance, the HD 7950's 2.867 TFLOPS FP32 output beats the T1000's 2.500 TFLOPS by 14.7%. However, the T1000 adds FP16 capability at 5.000 TFLOPS, opening up workloads that benefit from reduced precision. The HD 7950 has no FP16 support listed. The T1000's 4,700 million transistors on a 200 mm² die produce a density of 23.5M/mm² versus the HD 7950's 12.3M/mm²—a 91% density advantage that reflects the newer manufacturing process.

The power consumption difference is the most dramatic specification gap. At 50 W, the T1000 uses exactly 25% of the HD 7950's 200 W TDP. This translates to the T1000 delivering 725.8 benchmark points per watt versus 169.8 points per watt for the HD 7950. The T1000 requires no external power connectors and only a 250 W PSU, while the HD 7950 demands two 6-pin connectors and a 550 W PSU. For system builders, this means the T1000 can be installed into existing office PCs or small form factor systems without power supply upgrades, while the HD 7950 necessitates a robust PSU and adequate case airflow for its dual-slot cooler.