GPU Comparison

# FAQ

Q: How do the benchmark scores of the AMD Radeon HD 7950 and NVIDIA T600 Mobile compare?

A: The AMD Radeon HD 7950 has a single Geekbench Metal score of 33,951, while the NVIDIA T600 Mobile has a Geekbench OpenCL score of 35,486 and a Geekbench Vulkan score of 30,211. The T600 Mobile’s average benchmark score is 32,849 versus the HD 7950’s 33,951.

Q: Which GPU has a higher percentile ranking among all GPUs?

A: The AMD Radeon HD 7950 sits at the 78th percentile, while the NVIDIA T600 Mobile is at the 77th percentile. That one-percentage-point gap places the HD 7950 marginally higher overall.

Q: What are the closest rival GPUs for each card according to the data?

A: For the HD 7950, the nearest rival is the AMD Radeon RX 480 with an average score of 33,997 (0.1% higher), followed by the RX 7700S at 33,849 (0.3% lower). For the T600 Mobile, the NVIDIA P104-100 scores 32,982 (0.4% higher), and the AMD RX 590 GME scores 32,601 (0.8% lower).

Q: How do the memory configurations differ?

A: The HD 7950 uses 3 GB of GDDR5 on a 384-bit bus with 240.0 GB/s bandwidth. The T600 Mobile uses 4 GB of GDDR6 on a 128-bit bus with 192.0 GB/s bandwidth. The HD 7950 offers higher bandwidth, while the T600 Mobile has more capacity.

Q: What are the power requirements for each GPU?

A: The HD 7950 has a 200 W TDP with dual-slot width and 2x 6-pin power connectors, requiring a 550 W suggested PSU. The T600 Mobile has a 40 W TDP, is an IGP (integrated graphics processor) form factor, and requires no power connectors.

Q: Which GPU supports newer API versions?

A: The T600 Mobile supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4. The HD 7950 supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170. Both match on OpenGL, but the T600 Mobile leads on DirectX and Vulkan versions.

# The Verdict

The data tells a nuanced story. The AMD Radeon HD 7950 delivers a higher average benchmark score (33,951 vs. 32,849), a higher percentile rank (78 vs. 77), and notably higher memory bandwidth (240.0 GB/s vs. 192.0 GB/s). It also has significantly more shading units (1,792 vs. 896), texture mapping units (112 vs. 56), and higher FP32 throughput (2.867 TFLOPS vs. 2.527 TFLOPS). For raw compute density, the HD 7950 is the stronger choice.

However, the NVIDIA T600 Mobile wins on architectural modernity. It uses a 12 nm process (vs. 28 nm), Turing architecture (vs. GCN 1.0), and supports DirectX 12 (12_1) and Vulkan 1.4 (vs. DirectX 12 (11_1) and Vulkan 1.2.170). It also has a dramatically lower TDP of 40 W versus 200 W, and it offers 4 GB of memory versus 3 GB. The T600 Mobile’s Geekbench OpenCL score of 35,486 exceeds any single benchmark score from the HD 7950, which only has a Metal score of 33,951.

Choose the HD 7950 if your priority is peak compute throughput, higher bandwidth, and better percentile positioning. Choose the T600 Mobile if you need lower power draw, more memory capacity, newer API support, or a mobile form factor. The HD 7950 is a desktop card with 278 mm length; the T600 Mobile is an IGP with no dimensions listed, making it suitable for portable devices. Neither card is in production, but the data shows they serve different use cases: the HD 7950 for desktop performance, the T600 Mobile for efficiency and portability.

# Head-to-Head Benchmarks

The head-to-head benchmark table is empty in the data, but the individual benchmark results provide direct comparison points. The NVIDIA T600 Mobile’s Geekbench OpenCL score of 35,486 is the highest single benchmark figure between the two cards. That score beats the HD 7950’s Geekbench Metal score of 33,951 by 1,535 points, a 4.5% advantage. In contrast, the T600 Mobile’s Geekbench Vulkan score of 30,211 falls well short of the HD 7950’s Metal score, trailing by 3,740 points (approximately 11% lower).

The average benchmark scores tell a slightly different story. The HD 7950’s average is 33,951, while the T600 Mobile’s average is 32,849. That puts the HD 7950 ahead by 1,102 points, or roughly 3.4%. The percentile rankings reinforce this: the HD 7950 at 78th percentile versus the T600 Mobile at 77th.

The nearest rival data contextualizes these results further. The HD 7950’s closest competitor, the AMD Radeon RX 480, scores 33,997, just 46 points higher (0.1% delta). The T600 Mobile’s nearest rival, the NVIDIA P104-100, scores 32,982, 133 points higher (0.4% delta). This suggests both cards sit in a tightly packed performance band. The HD 7950’s deltaPct values range from -0.6% (RTX A2000 12 GB at 34,154) to +0.3% (RX 7700S at 33,849). The T600 Mobile’s range goes from -0.9% (T550 Mobile at 33,161) to +0.9% (FirePro S9300 X2 at 32,540). Neither card dominates its immediate rivals by a wide margin.

The biggest wins for the HD 7950 come in raw specifications that affect sustained performance. Its pixel rate of 25.60 GPixel/s and texture rate of 89.60 GTexel/s compare to the T600 Mobile’s 45.12 GPixel/s and 78.96 GTexel/s. The HD 7950 wins on texture rate (12.6% higher) but loses on pixel rate (the T600 Mobile is 76.3% higher). Memory bandwidth also favors the HD 7950: 240.0 GB/s versus 192.0 GB/s, a 25% advantage. The T600 Mobile counters with a 4 GB frame buffer versus 3 GB, and a boost clock of 1,410 MHz versus no listed boost clock for the HD 7950.

The verdict in benchmarks is split. The T600 Mobile wins the single highest score (OpenCL 35,486) and the pixel rate. The HD 7950 wins the average score, the Metal score, texture rate, and memory bandwidth. For users relying on OpenCL workloads, the T600 Mobile appears stronger; for Metal-based workloads, the HD 7950 takes the edge.

# Specification Differences

The two GPUs differ across nearly every measurable specification. The AMD Radeon HD 7950 uses the Tahiti chip with GCN 1.0 architecture, built on a 28 nm process at TSMC. The NVIDIA T600 Mobile uses the TU117 chip with Turing architecture, built on a 12 nm process also at TSMC. The HD 7950 packs 4,313 million transistors on a 352 mm² die, while the T600 Mobile has 4,700 million transistors on a 200 mm² die. This yields transistor densities of 12.3M per mm² for the HD 7950 and 23.5M per mm² for the T600 Mobile.

Clock speeds differ substantially. The HD 7950 has no listed base or boost clock, only a memory clock of 1,250 MHz (5 Gbps effective). The T600 Mobile has a base clock of 780 MHz, a boost clock of 1,410 MHz, and a memory clock of 1,500 MHz (12 Gbps effective). The T600 Mobile’s boost clock is 81% higher than its base clock, indicating aggressive dynamic scaling.

Memory configurations diverge sharply. The HD 7950 uses 3 GB GDDR5 across a 384-bit bus, achieving 240.0 GB/s bandwidth. The T600 Mobile uses 4 GB GDDR6 across a 128-bit bus, achieving 192.0 GB/s bandwidth. The HD 7950 has the wider bus and higher bandwidth; the T600 Mobile has more capacity and faster memory technology.

Compute units also differ. The HD 7950 has 1,792 shading units, 112 TMUs, and 32 ROPs. The T600 Mobile has 896 shading units, 56 TMUs, and 32 ROPs. The HD 7950 doubles the shading units and TMUs while matching ROPs. Pixel rates are 25.60 GPixel/s (HD 7950) versus 45.12 GPixel/s (T600 Mobile). Texture rates are 89.60 GTexel/s (HD 7950) versus 78.96 GTexel/s (T600 Mobile). FP32 performance is 2.867 TFLOPS (HD 7950) versus 2.527 TFLOPS (T600 Mobile). The T600 Mobile also lists FP16 at 5.053 TFLOPS (2:1), while the HD 7950 lists no FP16 figure.

Power and form factor differences are stark. The HD 7950 has a 200 W TDP, dual-slot width, 2x 6-pin power connectors, and a 550 W suggested PSU. The T600 Mobile has a 40 W TDP, is an IGP, requires no power connectors, and has no suggested PSU. Dimensions exist only for the HD 7950: 278 mm length, 111 mm height, 38 mm width. The T600 Mobile lists no physical dimensions, consistent with its mobile IGP design.

Display outputs also differ. The HD 7950 offers 1x DVI, 1x HDMI 1.4a, and 2x mini-DisplayPort 1.2. The T600 Mobile lists “Portable Device Dependent” outputs. The HD 7950 uses PCIe 3.0 x16; the T600 Mobile also uses PCIe 3.0 x16. The HD 7950’s launch MSRP was 449 USD; the T600 Mobile has no listed launch MSRP.

# Architecture Differences

The architectural gap between these GPUs spans nearly a decade of development. The AMD Radeon HD 7950 belongs to the Southern Islands generation (HD 7900 series) using GCN 1.0 architecture. Its predecessor is Northern Islands and its successor is Sea Islands. Released on 2012-01-30, it was built on a 28 nm process at TSMC with 4,313 million transistors on a 352 mm² die.

The NVIDIA T600 Mobile belongs to the Quadro Turing-M (Tx000) generation using Turing architecture. Its predecessor is Quadro Pascal-M and its successor is Ampere-MW. Released on 2021-04-11, it was built on a 12 nm process at TSMC with 4,700 million transistors on a 200 mm² die.

The node difference is significant: 28 nm versus 12 nm. This explains the transistor density gap, 12.3M per mm² for the HD 7950 versus 23.5M per mm² for the T600 Mobile. The T600 Mobile fits more transistors into a smaller die, reflecting the newer process. Despite having fewer total transistors on the HD 7950 (4,313 million vs. 4,700 million), the HD 7950’s larger die (352 mm² vs. 200 mm²) results in lower density.

Architecturally, GCN 1.0 and Turing take different approaches. The HD 7950 emphasizes raw throughput with 1,792 shading units and 112 TMUs. The T600 Mobile uses 896 shading units and 56 TMUs but achieves higher pixel rate (45.12 GPixel/s vs. 25.60 GPixel/s) through its boost clock of 1,410 MHz. The T600 Mobile also has FP16 support at 5.053 TFLOPS (2:1), which the HD 7950 lacks entirely.

API support reflects the architectural evolution. The HD 7950 supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.170. The T600 Mobile supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.4. Both support OpenGL 4.6, but the T600 Mobile’s newer architecture enables higher DirectX and Vulkan feature levels.

Neither GPU has ray tracing cores or tensor cores listed. Both are end-of-life products. The HD 7950’s 200 W TDP versus the T600 Mobile’s 40 W TDP illustrates the efficiency gains of the newer architecture, the T600 Mobile delivers competitive compute performance (2.527 TFLOPS vs. 2.867 TFLOPS) at one-fifth the power draw. The HD 7950 compensates with higher memory bandwidth and more shading units, but the T600 Mobile’s architectural efficiency and mobile form factor make it the more versatile modern option. The data shows a clear trade-off: brute-force desktop computing versus efficient mobile computing.