Intel HD Graphics 530 vs NVIDIA GeForce GTX 860M Comparison

Intel HD Graphics 530 and NVIDIA GeForce GTX 860M are both end-of-life graphics solutions, but they target entirely different segments of the market. The HD 530 is an integrated processor graphics unit (IGP) built into Skylake CPUs, while the GTX 860M is a discrete mobile GPU from NVIDIA's Kepler generation. The benchmark data shows a clear split: the Intel part wins one synthetic test, while the NVIDIA part dominates the other two by massive margins. This analysis uses only the provided benchmark scores and specifications to determine which GPU is suited for which workload.

Head-to-Head Benchmarks

The only benchmark where the Intel HD Graphics 530 comes out ahead is Geekbench Metal, scoring 5025 against the GTX 860M's 4900. That is a slim 2.6% advantage, which is within run-to-run variance for most workloads. The data shows this is not a meaningful victory in practical terms; it simply indicates that the Intel IGP's Metal driver implementation is slightly more efficient for that specific API test. For any real-world Metal workload, the difference would be negligible.

The results flip dramatically in the OpenCL test. The GTX 860M scores 10461, while the HD 530 manages only 3550. That is a 66.1% deficit for the Intel part, making the NVIDIA GPU nearly three times faster in raw compute throughput. The gap is even larger in Vulkan: the GTX 860M posts 9648 versus the HD 530's 1422, a staggering 85.3% difference. These two tests reveal the fundamental performance chasm between an integrated GPU with 192 shading units and a discrete GPU with 1152 shading units. The GTX 860M wins two out of three head-to-head benchmarks, and the two wins are by margins so large that they completely overshadow the Intel part's single narrow victory.

Looking at the average benchmark scores, the HD 530 averages 3332, while the GTX 860M averages 2967. This is counterintuitive given the head-to-head results, but it reflects the different benchmark suites each GPU was tested with. The Intel part's average includes only Geekbench scores, while the NVIDIA part's average includes those plus several Passmark tests where it scores very low (e.g., 15 in DirectX 10, 23 in DirectX 11). The GTX 860M's Passmark G3D score of 3081 is respectable, but the low DirectX scores drag its average down. The percentile rankings tell a similar story: both GPUs sit near the bottom of the database, with the HD 530 at the 20th percentile and the GTX 860M at the 19th percentile. Neither is a high-performance part by modern standards.

Architecture Differences

The two GPUs come from different architectural generations and process nodes. The Intel HD Graphics 530 uses the Skylake GT2 chip built on a 14 nm+ process at Intel's foundry, with a die size of 123 mm². The NVIDIA GeForce GTX 860M uses the GK104 chip on a 28 nm process at TSMC, with a much larger die size of 294 mm² and 3,540 million transistors. The process node difference is significant: 14 nm+ versus 28 nm means Intel packs more transistors per area, but the NVIDIA chip uses its larger die to house far more execution units.

The HD 530 features 192 shading units, 24 texture mapping units (TMUs), and only 3 raster output units (ROPs). The GTX 860M has 1152 shading units, 96 TMUs, and 16 ROPs. This 6x difference in shading units and 4x difference in TMUs directly explains the compute performance gap seen in OpenCL and Vulkan tests. The Intel part's pixel rate is 2.850 GPixel/s and texture rate is 22.80 GTexel/s, while the NVIDIA part achieves 21.96 GPixel/s and 87.84 GTexel/s. The GTX 860M's FP32 throughput is 2.108 TFLOPS, over five times the HD 530's 364.8 GFLOPS. The Intel part does support FP16 at 729.6 GFLOPS via a 2:1 ratio, but the NVIDIA part has no listed FP16 capability.

Memory architecture is another major divider. The HD 530 uses system shared memory with a system-dependent bandwidth, while the GTX 860M has 2 GB of dedicated GDDR5 on a 128-bit bus with 80.00 GB/s bandwidth. The NVIDIA part's memory clock is 1250 MHz (5 Gbps effective), whereas the Intel part's memory clock is listed as "System Shared." This dedicated memory bandwidth is crucial for gaming and compute tasks, as it avoids the bottleneck of sharing system RAM with the CPU.

FAQ

Q: Which GPU is faster in Vulkan workloads?

A: The NVIDIA GeForce GTX 860M is overwhelmingly faster, scoring 9648 in Geekbench Vulkan versus 1422 for the Intel HD Graphics 530. That is an 85.3% advantage for the NVIDIA part, making it roughly 6.8 times faster in this specific test.

Q: Does the Intel HD Graphics 530 win any benchmark?

A: Yes, it wins Geekbench Metal with a score of 5025 against the GTX 860M's 4900, a 2.6% margin. However, this is the only test it wins, and the margin is small enough that it likely reflects driver optimization rather than raw hardware superiority.

Q: What is the memory configuration of each GPU?

A: The Intel HD Graphics 530 uses system shared memory with no dedicated VRAM, and its bandwidth is listed as "System Dependent." The NVIDIA GeForce GTX 860M has 2 GB of GDDR5 memory on a 128-bit bus, providing 80.00 GB/s of dedicated bandwidth.

Q: How do their compute capabilities compare?

A: The GTX 860M has 1152 shading units and delivers 2.108 TFLOPS of FP32 performance. The HD 530 has only 192 shading units and delivers 364.8 GFLOPS of FP32. The NVIDIA part is roughly 5.8 times faster in raw FP32 compute, which is reflected in its 66.1% OpenCL advantage.

Q: Which GPU has better API support?

A: The Intel HD Graphics 530 supports DirectX 12 (12_1), OpenGL 4.6, and Vulkan 1.3. The NVIDIA GTX 860M supports DirectX 12 (11_0), OpenGL 4.6, and Vulkan 1.2.175. Intel has a higher DirectX feature level and a newer Vulkan version, but the GTX 860M's superior hardware makes it faster in practice.

Q: Are these GPUs comparable in their target markets?

A: No. The Intel HD Graphics 530 is an IGP with a 15 W TDP, designed for basic display output and light workloads. The NVIDIA GTX 860M is a discrete GPU with a 75 W TDP, intended for gaming and compute in laptops. The HD 530's nearest rivals are other low-end IGPs and entry-level discrete GPUs, while the GTX 860M's nearest rivals include the GTX 750 Ti.

Specification Differences

The two GPUs differ in nearly every specification field. The Intel HD Graphics 530 is built on a 14 nm+ process at 123 mm², while the NVIDIA GTX 860M uses a 28 nm process at 294 mm² with 3,540 million transistors. The Intel part has 192 shading units, 24 TMUs, and 3 ROPs; the NVIDIA part has 1152 shading units, 96 TMUs, and 16 ROPs. Clock speeds differ significantly: the HD 530 runs at 350 MHz base and 950 MHz boost, while the GTX 860M runs at 797 MHz base and 915 MHz boost. The Intel part's memory is system shared, whereas the NVIDIA part has 2 GB GDDR5 with a 128-bit bus and 80.00 GB/s bandwidth.

Pixel rate is 2.850 GPixel/s for Intel versus 21.96 GPixel/s for NVIDIA. Texture rate is 22.80 GTexel/s versus 87.84 GTexel/s. FP32 performance is 364.8 GFLOPS versus 2.108 TFLOPS. The Intel part supports FP16 at 729.6 GFLOPS, while the NVIDIA part has no listed FP16 capability. TDP is 15 W for Intel versus 75 W for NVIDIA. Bus interface is Ring Bus for Intel versus PCIe 3.0 x16 for NVIDIA. The NVIDIA part has no power connectors, while the Intel part has none because it draws power from the motherboard. Release dates differ: Intel launched on 2015-08-31, NVIDIA on 2014-03-09. The GTX 860M's predecessor is the GeForce 700M and its successor is the GeForce 900M, while the HD 530 has no listed predecessor or successor.

The Verdict

The data is unambiguous: the NVIDIA GeForce GTX 860M is the vastly superior GPU for any compute-heavy or graphics-intensive task. Its 66.1% OpenCL advantage and 85.3% Vulkan advantage over the Intel HD Graphics 530 are decisive. The only benchmark the Intel part wins is Geekbench Metal, and that victory is by a mere 2.6%, which is not enough to recommend it for any real workload. The GTX 860M's dedicated 2 GB GDDR5 memory with 80.00 GB/s bandwidth, six times the shading units, and over five times the FP32 throughput make it the clear choice for gaming, 3D rendering, or general-purpose GPU compute.

The Intel HD Graphics 530 is not without merit, but its merits are limited to power efficiency and integration. At 15 W TDP versus 75 W, it consumes a fraction of the power and requires no dedicated cooling or power delivery. For a basic office PC, media playback, or light 2D workloads, the HD 530 is adequate. However, the benchmark results show that even in its best case (Metal), it barely edges out the GTX 860M, and in every other test it is crushed. The GTX 860M's average benchmark score of 2967 is lower than the HD 530's 3332, but this is a statistical artifact of including Passmark tests where the NVIDIA part scores single digits. Ignoring those, the GTX 860M is clearly the better GPU.

Where Each One Wins

Intel HD Graphics 530: This IGP wins in scenarios where power consumption is the primary constraint. With a 15 W TDP, it is suitable for ultra-portable laptops and low-power desktops where a 75 W discrete GPU is not feasible. It also wins the Geekbench Metal test, scoring 5025 versus 4900, making it the better choice for that specific Apple-oriented API if you are working with Metal-accelerated applications. Its 14 nm+ process and smaller die size (123 mm²) mean it is more efficient at basic tasks like video playback and 2D desktop rendering. For users who never run games or compute workloads, the HD 530's lower power draw is a tangible advantage.

NVIDIA GeForce GTX 860M: This discrete GPU wins in every compute-heavy scenario. Its OpenCL score of 10461 versus 3550 makes it the clear choice for OpenCL-accelerated applications like video encoding, scientific simulations, or any CUDA-style workload (though CUDA is not listed, the architecture is Kepler). Its Vulkan score of 9648 versus 1422 means it is dramatically better for Vulkan-based games and applications. The 2 GB of dedicated GDDR5 memory with 80.00 GB/s bandwidth provides the memory throughput needed for high-resolution textures and complex 3D scenes. The GTX 860M also has a higher pixel rate (21.96 GPixel/s) and texture rate (87.84 GTexel/s), making it suited for modern game engines that rely heavily on texture sampling and rasterization. In short, if you are playing games, rendering 3D content, or running GPU compute, the GTX 860M is the only viable choice between these two.