Intel HD Graphics P530 vs NVIDIA GeForce GTS 450 Comparison

The NVIDIA GeForce GTS 450 and Intel HD Graphics P530 represent two very different philosophies in graphics hardware: a dedicated, power-hungry discrete card from 2010 against a power-sipping integrated solution from 2015. The data shows a clear but narrow performance hierarchy, with the GTS 450 taking the single benchmark victory by a meaningful margin, yet the P530 counters with architectural modernity and feature support that the older Fermi part cannot match.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce GTS 450 leads with an average benchmark score of 4893, compared to the Intel HD Graphics P530's average of 4560. This places the GTS 450 in the 28th percentile of all GPUs, while the P530 sits just behind in the 26th percentile.

Q: How large is the performance gap in the head-to-head benchmark?

A: In the single available comparison test (Geekbench OpenCL), the GTS 450 scores 4893 against the P530's 4549. The deltaPct is 7.6%, meaning the NVIDIA card outperforms the Intel integrated solution by nearly eight percent.

Q: What are the thermal design power (TDP) differences between the two?

A: The NVIDIA GeForce GTS 450 has a TDP of 106 W, while the Intel HD Graphics P530 consumes just 15 W. This massive disparity reflects the fundamental difference between a discrete card requiring its own power connector and an integrated processor graphics unit.

Q: Do both GPUs support DirectX 12?

A: Yes, both support DirectX 12, but at different feature levels. The GTS 450 supports DirectX 12 (11_0), while the P530 supports DirectX 12 (12_1), indicating the Intel part has a more complete implementation of the modern API.

Q: Which GPU offers Vulkan support?

A: Only the Intel HD Graphics P530 lists Vulkan support, with version 1.3. The NVIDIA GeForce GTS 450 has no Vulkan API listed in its specifications.

Q: How do their closest rivals compare in benchmark scores?

A: The GTS 450's nearest rival, the NVIDIA GeForce RTX 5060 Ti 8 GB, scores 4901, which is only 0.2% higher. The P530's closest competitor, the AMD Radeon RX 560, scores 4569, also 0.2% higher. Both GPUs are bracketed by a tight cluster of similarly performing parts.

Architecture Differences

The architectural chasm between these two GPUs could hardly be wider. The NVIDIA GeForce GTS 450 is built on the Fermi architecture, using the GF106 chip fabricated on a 40 nm process at TSMC. This older design packs 1,170 million transistors onto a 238 mm² die, yielding a transistor density of 4.9M per mm². The Intel HD Graphics P530, by contrast, uses the Skylake GT2 chip with Intel's Generation 9.0 architecture, manufactured on a 14 nm+ process at Intel's own fabs. Its die size is a mere 123 mm², though Intel does not disclose a transistor count or density figure.

Memory handling represents another profound divergence. The GTS 450 employs 1024 MB of dedicated GDDR5 memory across a 128-bit bus, delivering 57.73 GB/s of bandwidth. The P530 relies entirely on System Shared memory, with its bandwidth listed as "System Dependent" and a bus width also marked "System Shared." This means the Intel part's performance varies with the host system's memory configuration, while the NVIDIA card has fixed, dedicated resources.

The compute pipelines differ in structure despite both having 192 shading units. The GTS 450 pairs its shaders with 32 texture mapping units (TMUs) and 16 raster output units (ROPs), while the P530 has just 16 TMUs and only 3 ROPs. This explains the substantial throughput differences: the GTS 450 achieves a pixel rate of 6.264 GPixel/s and a texture rate of 25.06 GTexel/s, versus the P530's 3.000 GPixel/s and 16.00 GTexel/s. The GTS 450 also delivers 601.3 GFLOPS of FP32 compute, while the P530 manages 384.0 GFLOPS — though the Intel part adds 768.0 GFLOPS of FP16 capability with a 2:1 ratio, a feature the Fermi card lacks entirely.

Clock behavior also reflects their different natures. The GTS 450 lists no base or boost clock for its core, only a memory clock of 902 MHz (3.6 Gbps effective). The P530 operates with a base clock of 350 MHz and a boost clock of 1000 MHz, showing how integrated parts rely on dynamic boosting to manage thermals and power.

Head-to-Head Benchmarks

The sole head-to-head benchmark available is Geekbench OpenCL, and the results tell a story of narrow but definitive victory. The NVIDIA GeForce GTS 450 scores 4893 against the Intel HD Graphics P530's 4549, producing a deltaPct of 7.6% in favor of the discrete card. This margin is meaningful but not overwhelming — it suggests that for OpenCL workloads, the GTS 450's dedicated memory and higher fill rates provide a tangible advantage.

Context from the nearestRivals data helps calibrate this performance. The GTS 450's score of 4893 places it within 0.7% of the AMD Radeon R7 M265 (4929) and just 0.5% above the AMD Radeon R6 M255DX (4867). The P530's 4549, meanwhile, sits 1.2% above the AMD FirePro W4190M (4505) and 1.3% below the NVIDIA Quadro M3000M (4621). Both GPUs occupy a crowded mid-low tier of performance where small percentage differences separate many products.

The P530 also has a Geekbench Vulkan score of 4571, which the GTS 450 cannot produce due to its lack of Vulkan support. While this score cannot be directly compared across the two products, it indicates that the Intel part remains functional in modern API environments where the NVIDIA card simply has no presence.

Specification Differences

The two GPUs differ across nearly every measurable specification. The GTS 450 uses a 40 nm process at TSMC, while the P530 uses 14 nm+ at Intel. The GTS 450 has 1,170 million transistors on a 238 mm² die; the P530's die is 123 mm² with no disclosed transistor count. Memory configurations are entirely different: 1024 MB GDDR5 on a 128-bit bus with 57.73 GB/s bandwidth versus System Shared memory with System Dependent bandwidth.

Clock specifications show the GTS 450 with only a memory clock of 902 MHz (3.6 Gbps effective), while the P530 has a base of 350 MHz and boost of 1000 MHz. Shading units match at 192, but TMUs differ (32 vs 16) and ROPs differ dramatically (16 vs 3). Pixel rate is 6.264 GPixel/s versus 3.000 GPixel/s, texture rate is 25.06 GTexel/s versus 16.00 GTexel/s, and FP32 compute is 601.3 GFLOPS versus 384.0 GFLOPS. The P530 adds FP16 at 768.0 GFLOPS while the GTS 450 has none.

Power and physical specs diverge sharply: TDP is 106 W versus 15 W, the GTS 450 is a dual-slot card with a 1x 6-pin power connector and 300 W suggested PSU, while the P530 is an IGP with no connectors. The GTS 450 uses PCIe 2.0 x16, the P530 uses Ring Bus. Display outputs are 2x DVI and 1x mini-HDMI 1.3a for NVIDIA, versus Motherboard Dependent for Intel. API support shows the P530 ahead with DirectX 12 (12_1) and Vulkan 1.3, while the GTS 450 manages only DirectX 12 (11_0) and no Vulkan. Both support OpenGL 4.6.

The Verdict

The data points to a clear but context-dependent winner. For raw compute performance in the tested OpenCL workload, the NVIDIA GeForce GTS 450 wins outright with a 7.6% advantage. Its dedicated GDDR5 memory, higher pixel and texture rates, and greater FP32 throughput give it a measurable edge in traditional graphics and compute tasks. The GTS 450 also holds the only head-to-head victory in the benchmark suite, with winsA equal to 1.

However, the Intel HD Graphics P530 counters with compelling strengths that the benchmark cannot fully capture. Its 14 nm+ process, 15 W TDP (versus 106 W), and support for DirectX 12 (12_1) and Vulkan 1.3 make it a far more modern and efficient part. The P530's FP16 capability and system-shared memory architecture suit it for different workloads, particularly those that leverage integrated memory and modern API features.

The percentile rankings reflect this near-tie: the GTS 450 sits at the 28th percentile against all GPUs, while the P530 sits at the 26th. This two-percentile gap is consistent with the 7.6% benchmark delta, confirming that the discrete card is modestly faster overall but both parts occupy the same performance stratum. Users prioritizing raw OpenCL compute should choose the GTS 450; those requiring modern API support, low power draw, and integration simplicity should select the P530.

Where Each One Wins

The NVIDIA GeForce GTS 450 wins in every scenario where dedicated memory and raw throughput matter. Its 57.73 GB/s of dedicated bandwidth versus system-shared memory gives it a significant advantage in memory-intensive workloads. The 6.264 GPixel/s pixel rate and 25.06 GTexel/s texture rate, driven by 16 ROPs and 32 TMUs, make it better suited for traditional rasterization tasks. The 601.3 GFLOPS FP32 compute is 56% higher than the P530's 384.0 GFLOPS, making the GTS 450 the clear choice for OpenCL compute workloads. Its 106 W TDP, while power-hungry, enables sustained performance without the thermal throttling that integrated parts might face.

The Intel HD Graphics P530 wins on efficiency and modern feature support. Its 15 W TDP is a fraction of the GTS 450's 106 W, making it ideal for power-constrained or battery-operated systems. The 14 nm+ process node versus 40 nm represents a generational leap in manufacturing efficiency. The P530's DirectX 12 (12_1) support exceeds the GTS 450's 11_0 level, and its Vulkan 1.3 support opens modern cross-platform graphics APIs that the NVIDIA card cannot access. The FP16 capability at 768.0 GFLOPS suggests advantages in workloads that leverage half-precision arithmetic, even though FP32 is lower. Its Ring Bus interface and system-shared memory architecture make it a natural fit for compact, integrated systems where a discrete card is not an option.