AMD Radeon HD 7950 vs NVIDIA GeForce RTX 5070 Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive performance gap between the NVIDIA GeForce RTX 5070 and the AMD Radeon HD 7950, although direct head-to-head benchmark comparisons are limited. The RTX 5070 holds an average benchmark score of 40377, placing it in the 82nd percentile of all GPUs in the database. The HD 7950, by contrast, averages 33951, which places it in the 78th percentile. The delta between the two average scores is approximately 19% in favor of the RTX 5070, a substantial margin that reflects the generational leap between the two products.

Looking at the available individual benchmark results, the RTX 5070 dominates across every test for which data exists. In 3DMark Steel Nomad (DX12), the RTX 5070 scores 5077, a result that reflects its modern architecture and high shading throughput. The HD 7950 has no recorded result for this test, but its overall compute and graphics scores are far lower across the board. In Geekbench OpenCL, the RTX 5070 achieves 172660, while the HD 7950 has no OpenCL entry; the closest comparable result for the older card is its Geekbench Metal score of 33951, which is less than one-fifth of the RTX 5070's OpenCL figure. In Geekbench Vulkan, the RTX 5070 scores 178923, again with no Vulkan result recorded for the HD 7950.

PassMark results further illustrate the gap. The RTX 5070 posts a PassMark G3D score of 29137, while the HD 7950 has no G3D entry in the database. The RTX 5070's PassMark GPU compute score is 15787, and its DirectX 11 score is 277, DirectX 12 score is 108, DirectX 10 score is 180, DirectX 9 score is 320, and G2D score is 1305. The HD 7950's only recorded benchmark is Geekbench Metal at 33951, which is a compute-oriented test. The absence of comparable DirectX or OpenGL scores for the HD 7950 means the head-to-head comparison relies heavily on the average score and percentile data.

When comparing the RTX 5070 to its nearest rivals in the database, the margins are tight. The AMD Radeon Pro 580 averages 40318, a delta of 0.1% above the RTX 5070, making it essentially a statistical tie. The AMD Radeon Pro WX 7100 averages 40063, which is 0.8% below the RTX 5070. The AMD Radeon Pro 5300 averages 40870, putting it 1.2% ahead of the RTX 5070, and the NVIDIA RTX A500 Mobile averages 39568, 2.0% behind. These small deltas indicate that the RTX 5070 sits in a densely populated performance tier where minor architectural differences determine ranking.

For the HD 7950, its nearest rivals also cluster closely. The AMD Radeon RX 480 averages 33997, a delta of -0.1% relative to the HD 7950, meaning the RX 480 is essentially equal. The AMD Radeon RX 7700S averages 33849, 0.3% below the HD 7950. The AMD Radeon RX 560 XT averages 34133, 0.5% above, and the NVIDIA RTX A2000 12 GB averages 34154, 0.6% above. The HD 7950's position among these cards indicates that despite its age, it still performs in the same class as much newer mid-range GPUs, but it remains far behind the RTX 5070's tier.

Architecture Differences

The architectural divide between the RTX 5070 and the HD 7950 is vast. The RTX 5070 uses the GB205 chip built on NVIDIA's Blackwell 2.0 architecture, manufactured on a 5 nm process at TSMC. The HD 7950 uses the Tahiti chip based on AMD's GCN 1.0 architecture, built on a 28 nm process, also at TSMC. The process node difference alone explains much of the performance and efficiency gap: 5 nm versus 28 nm is a generational leap in transistor density.

Transistor counts reinforce this divide. The RTX 5070 contains 31,100 million transistors on a die size of 263 mm², yielding a transistor density of 118.3 million per mm². The HD 7950 contains 4,313 million transistors on a larger die of 352 mm², with a density of only 12.3 million per mm². The RTX 5070 packs over seven times more transistors into a smaller physical area, which directly enables its higher shading, texture, and pixel rates.

The memory subsystems are equally divergent. The RTX 5070 uses 12 GB of GDDR7 memory on a 192-bit bus, delivering a bandwidth of 672.0 GB/s. The HD 7950 uses 3 GB of GDDR5 memory on a wider 384-bit bus, but its bandwidth is only 240.0 GB/s. The RTX 5070's memory clock is 1750 MHz, or 28 Gbps effective, while the HD 7950's memory clock is 1250 MHz, or 5 Gbps effective. The GDDR7 standard provides a massive bandwidth advantage despite the narrower bus.

Compute resources differ sharply. The RTX 5070 has 6144 shading units, 192 texture mapping units, and 80 ROPs. The HD 7950 has 1792 shading units, 112 TMUs, and 32 ROPs. The RTX 5070 also includes 48 ray tracing cores and 192 tensor cores, features entirely absent from the HD 7950, which has no dedicated ray tracing or tensor hardware. The RTX 5070's FP32 throughput is 30.87 TFLOPS, and its FP16 throughput matches at 30.87 TFLOPS with a 1:1 ratio. The HD 7950's FP32 throughput is 2.867 TFLOPS, and no FP16 figure is recorded. Pixel rate for the RTX 5070 is 201.0 GPixel/s versus 25.60 GPixel/s for the HD 7950, and texture rate is 482.3 GTexel/s versus 89.60 GTexel/s.

API support also shows the age gap. The RTX 5070 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 RTX 5070's newer DirectX feature level and Vulkan version enable modern rendering techniques that the HD 7950 cannot fully utilize.

Where Each One Wins

The RTX 5070 wins in essentially every measurable category. For modern gaming workloads, its Blackwell 2.0 architecture, ray tracing cores, and tensor cores provide hardware acceleration for features like real-time ray tracing and AI-driven upscaling, both of which are absent on the HD 7950. The RTX 5070's 30.87 TFLOPS of FP32 compute makes it suitable for heavy graphics workloads, while its 672.0 GB/s memory bandwidth supports high-resolution textures and large datasets. The 12 GB GDDR7 frame buffer is also more than sufficient for current game installations and professional applications.

The HD 7950's strengths are limited to its historical context. Its 3 GB GDDR5 memory on a 384-bit bus was substantial for its era, and its GCN 1.0 architecture supported features like asynchronous compute that were forward-looking at launch. However, in absolute terms, its 2.867 TFLOPS FP32 throughput and 240.0 GB/s bandwidth place it far below the RTX 5070. The HD 7950's 25.60 GPixel/s pixel rate and 89.60 GTexel/s texture rate are roughly one-eighth and one-fifth of the RTX 5070's respective rates. The HD 7950 does have a lower TDP at 200 W versus 250 W for the RTX 5070, and it uses two 6-pin power connectors rather than a single 16-pin connector, which may be relevant for older power supplies. Its suggested PSU is 550 W versus 600 W for the RTX 5070.

For users with legacy software that relies on older DirectX versions, the HD 7950's support for DirectX 12 (11_1) may be sufficient, but the RTX 5070's DirectX 12 Ultimate (12_2) is strictly superior. The HD 7950 also supports Vulkan 1.2.170, which is older than the RTX 5070's Vulkan 1.4. No workload in the database shows the HD 7950 outperforming the RTX 5070.

Specification Differences

The two cards differ in nearly every specification field. The RTX 5070 uses the GB205 chip with Blackwell 2.0 architecture, while the HD 7950 uses the Tahiti chip with GCN 1.0 architecture. Process nodes are 5 nm and 28 nm, respectively. Transistor counts are 31,100 million versus 4,313 million, and die sizes are 263 mm² versus 352 mm². The RTX 5070 has a transistor density of 118.3M per mm², while the HD 7950 has 12.3M per mm².

Clock speeds differ significantly. The RTX 5070 has a base clock of 2325 MHz and a boost clock of 2512 MHz. The HD 7950 has no base or boost clock recorded. Memory clocks are 1750 MHz (28 Gbps effective) for the RTX 5070 and 1250 MHz (5 Gbps effective) for the HD 7950. Memory capacities are 12 GB GDDR7 on a 192-bit bus for the RTX 5070 versus 3 GB GDDR5 on a 384-bit bus for the HD 7950. Bandwidth is 672.0 GB/s versus 240.0 GB/s.

Shading units are 6144 versus 1792, TMUs are 192 versus 112, and ROPs are 80 versus 32. The RTX 5070 has 48 RT cores and 192 tensor cores; the HD 7950 has none. Pixel rates are 201.0 GPixel/s versus 25.60 GPixel/s, and texture rates are 482.3 GTexel/s versus 89.60 GTexel/s. FP32 throughput is 30.87 TFLOPS versus 2.867 TFLOPS, with FP16 only recorded for the RTX 5070 at 30.87 TFLOPS.

TDP is 250 W for the RTX 5070 and 200 W for the HD 7950. Power connectors are 1x 16-pin versus 2x 6-pin. Suggested PSU is 600 W versus 550 W. Bus interfaces are PCIe 5.0 x16 versus PCIe 3.0 x16. Display outputs are 1x HDMI 2.1b and 3x DisplayPort 2.1b for the RTX 5070, versus 1x DVI, 1x HDMI 1.4a, and 2x mini-DisplayPort 1.2 for the HD 7950. Dimensions are 245 mm length, 115 mm height, 40 mm width for the RTX 5070 versus 278 mm length, 111 mm height, 38 mm width for the HD 7950. Production status is Active for the RTX 5070 and End-of-life for the HD 7950. Release dates are 2025-03-03 for the RTX 5070 and 2012-01-30 for the HD 7950.

FAQ

Q: How much faster is the NVIDIA GeForce RTX 5070 than the AMD Radeon HD 7950 in average benchmark score?

A: The RTX 5070 has an average benchmark score of 40377, while the HD 7950 averages 33951, a difference of approximately 19% in favor of the RTX 5070.

Q: Does the AMD Radeon HD 7950 support ray tracing?

A: No. The HD 7950 has no ray tracing cores or tensor cores recorded in the database. The RTX 5070 includes 48 RT cores and 192 tensor cores.

Q: What is the memory configuration difference between the two cards?

A: The RTX 5070 has 12 GB of GDDR7 memory on a 192-bit bus with 672.0 GB/s bandwidth. The HD 7950 has 3 GB of GDDR5 memory on a 384-bit bus with 240.0 GB/s bandwidth.

Q: Which card has a higher transistor density?

A: The RTX 5070 has a transistor density of 118.3 million per mm², versus 12.3 million per mm² for the HD 7950, despite the RTX 5070 having a smaller die at 263 mm² compared to 352 mm².

Q: What are the power requirements for each card?

A: The RTX 5070 has a TDP of 250 W and requires a 600 W suggested PSU with a single 16-pin connector. The HD 7950 has a TDP of 200 W and requires a 550 W suggested PSU with two 6-pin connectors.

Q: What is the DirectX support difference?

A: The RTX 5070 supports DirectX 12 Ultimate (12_2), while the HD 7950 supports DirectX 12 (11_1). The RTX 5070 also supports Vulkan 1.4 versus Vulkan 1.2.170 for the HD 7950.