Intel UHD Graphics 750 vs NVIDIA GeForce GTX 660 Comparison

Head-to-Head Benchmarks

The benchmark database records two shared workloads for these adapters: Geekbench OpenCL and Geekbench Vulkan. In both tests, the NVIDIA GeForce GTX 660 takes a decisive lead over the Intel UHD Graphics 750.

Starting with OpenCL, the GTX 660 scores 11,347 points against 6,743 points for the Intel part. That is a 68.3% advantage for the NVIDIA card, which is the largest margin recorded in this comparison. The gap is substantial enough that the GTX 660 finishes in a different performance class entirely. For context, the GTX 660’s average benchmark score across all recorded tests is 9,022, placing it at the 45th percentile of all GPUs in the database. The UHD 750’s average is 7,441, which lands at the 40th percentile. So while both sit in the middle of the field, the NVIDIA card sits meaningfully higher.

In Vulkan, the GTX 660 posts 11,415 points, while the UHD 750 reaches 8,138 points. That works out to a 40.3% lead for the NVIDIA card. Interestingly, the GTX 660 actually scores slightly higher in Vulkan than in OpenCL, while the UHD 750 improves by a larger relative amount in Vulkan compared to its OpenCL result. Still, the NVIDIA card’s Vulkan advantage is substantial and consistent with its OpenCL showing.

The wins tally is straightforward: the GTX 660 wins 2 benchmarks, and the UHD 750 wins 0. There is no recorded test where the Intel integrated graphics pulls ahead. The closest the UHD 750 gets is in Vulkan, where the 40.3% gap is narrower than the 68.3% OpenCL gap, but it is still a clear loss.

Looking at the rivals around each card reinforces the picture. The GTX 660’s nearest rival by average score is the NVIDIA TITAN V CEO Edition at 9,037, which is only 0.2% faster. The GTX 560 is 0.4% faster, and the AMD Radeon 550X is 1.2% slower. The UHD 750’s closest competitor is the AMD Radeon HD 8850M at 7,447, a 0.1% difference. The NVIDIA GeForce GTX 1650 sits 0.4% above the Intel part, and the Intel Arc A310 is 1.4% faster. In both cases, the cards are tightly grouped with their direct peers, but the two groups are far apart from each other. The GTX 660’s average score is about 21% higher than the UHD 750’s average, which matches the individual benchmark results.

The Verdict

The data is unambiguous. The NVIDIA GeForce GTX 660 outperforms the Intel UHD Graphics 750 in every recorded benchmark, with margins ranging from 40.3% to 68.3%. If you are choosing between these two for any workload that uses OpenCL or Vulkan, the GTX 660 is the stronger part by a wide margin.

The GTX 660 should be the pick for anyone who needs a discrete GPU with real compute headroom. Its average benchmark score of 9,022 places it at the 45th percentile of all GPUs, and it sits within 0.4% of the GeForce GTX 560 and TITAN V CEO Edition in average score. That means it competes with a surprisingly fast set of peers despite its age. In OpenCL, it delivers 11,347 points, which is a strong result for a card from the Kepler generation.

The Intel UHD Graphics 750 is a different kind of product. It is an integrated graphics solution with a 15 W TDP, designed for basic display output and light acceleration. Its average score of 7,441 puts it at the 40th percentile, and it trades blows with the Radeon HD 8850M and Radeon R7 350. It does not have the compute throughput to match the GTX 660, and the benchmark results show no scenario where it wins. If your workload is limited to the integrated graphics you already have, the UHD 750 is serviceable, but it is not a substitute for the GTX 660.

The choice comes down to whether you need a dedicated GPU or an integrated solution. For dedicated compute performance, the GTX 660 wins outright. For a low-power integrated option that handles light tasks, the UHD 750 is the only one of the two that fits that role, but it loses every benchmark comparison.

FAQ

Q: Which GPU has the higher average benchmark score?

A: The NVIDIA GeForce GTX 660 has an average benchmark score of 9,022, while the Intel UHD Graphics 750 has an average score of 7,441. The GTX 660 leads by roughly 21%.

Q: What is the largest performance gap between the two in a single test?

A: The largest gap is in Geekbench OpenCL, where the GTX 660 scores 11,347 and the UHD 750 scores 6,743. That is a 68.3% advantage for the NVIDIA card.

Q: Does the Intel UHD Graphics 750 win any benchmark against the GTX 660?

A: No. The recorded head-to-head benchmarks show the GTX 660 winning both Geekbench OpenCL and Geekbench Vulkan. The wins tally is 2 for the GTX 660 and 0 for the UHD 750.

Q: How does the GTX 660 compare to its nearest rivals?

A: The GTX 660’s nearest rival is the NVIDIA TITAN V CEO Edition with an average score of 9,037, which is 0.2% faster. The GeForce GTX 560 is 0.4% faster, and the AMD Radeon 550X is 1.2% slower.

Q: How does the UHD 750 compare to its nearest rivals?

A: The UHD 750’s nearest rival is the AMD Radeon HD 8850M with an average score of 7,447, which is 0.1% slower. The Radeon R7 350 is 0.2% slower, the GeForce GTX 1650 is 0.4% faster, and the Intel Arc A310 is 1.4% faster.

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

A: The GTX 660 is at the 45th percentile of all GPUs, while the UHD 750 is at the 40th percentile. The GTX 660 sits higher in the overall distribution.

Specification Differences

The two products differ in nearly every hardware specification that matters for performance. The GTX 660 uses a discrete GPU with its own memory, while the UHD 750 is an integrated graphics processor.

The GTX 660 has 960 shading units, 80 texture mapping units, and 24 raster output units. The UHD 750 has 256 shading units, 16 TMUs, and 8 ROPs. That is a 3.75x difference in shader count and a 5x difference in TMUs. The pixel rate for the GTX 660 is 20.64 GPixel/s, while the UHD 750 manages 10.40 GPixel/s. Texture rate is 82.56 GTexel/s for the NVIDIA card versus 20.80 GTexel/s for the Intel part.

The GTX 660 has 2 GB of GDDR5 memory on a 192-bit bus, delivering 144.2 GB/s of bandwidth. The UHD 750 uses system shared memory, with its bus width and bandwidth listed as system dependent. The GTX 660’s memory clock is 1502 MHz with 6 Gbps effective, while the UHD 750’s memory clock is tied to the system.

Clock speeds also differ sharply. The GTX 660 has a base clock of 980 MHz and a boost clock of 1032 MHz. The UHD 750 has a base clock of 300 MHz and a boost clock of 1300 MHz. The Intel part boosts much higher but starts far lower, and its compute throughput is limited by its smaller shader array.

Power and physical specifications are also different. The GTX 660 has a TDP of 140 W, requires a dual-slot cooler, and uses a 1x 6-pin power connector with a suggested PSU of 300 W. The UHD 750 has a TDP of 15 W, is an IGP with no slot width, and requires no power connectors or PSU recommendation. The GTX 660 measures 241 mm or 9.5 inches in length, while the UHD 750 has no recorded physical dimensions.

The GTX 660 uses a PCIe 3.0 x16 bus interface, while the UHD 750 uses a ring bus. Display outputs for the GTX 660 are 2x DVI, 1x HDMI 1.4a, and 1x DisplayPort 1.2. The UHD 750’s display outputs are motherboard dependent.

Architecture Differences

The GTX 660 is built on NVIDIA’s Kepler architecture, specifically the GK106 chip, using a 28 nm process from TSMC. It packs 2,540 million transistors on a 221 mm² die, giving a transistor density of 11.5 million transistors per square millimeter. The UHD 750 is built on Intel’s Generation 12.1 architecture, using the Rocket Lake chip on a 14 nm+++ process from Intel. Intel does not record transistor count or die size for this part.

The GTX 660’s FP32 compute is rated at 1.981 TFLOPS. The UHD 750’s FP32 is 665.6 GFLOPS, which is about one third of the NVIDIA card’s throughput. The Intel part does have FP16 support at 1,331.2 GFLOPS with a 2:1 ratio, while the GTX 660 has no recorded FP16 capability.

The GTX 660 supports DirectX 12 with feature level 11_0, OpenGL 4.6, and Vulkan 1.2.175. The UHD 750 supports DirectX 12 with feature level 12_1, OpenGL 4.6, and Vulkan 1.4. The Intel part has a newer DirectX feature level and a newer Vulkan version, but that does not translate into higher benchmark scores.

The GTX 660 was released on September 5, 2012, and its predecessor is the GeForce 500 series, with the GeForce 700 series as its successor. The UHD 750 was released on March 29, 2021, and has no recorded predecessor or successor. The GTX 660 has a launch MSRP of 229 USD. The UHD 750 has no launch MSRP recorded.

Both parts are end-of-life in production status. The GTX 660 is a discrete card from the GeForce 600 generation, while the UHD 750 is part of the HD Graphics line for Rocket Lake.

Where Each One Wins

The GTX 660 wins every recorded benchmark, so the use-case split is clear. For any workload that relies on OpenCL or Vulkan compute, the GTX 660 is the faster option by a large margin. Its 68.3% OpenCL lead and 40.3% Vulkan lead mean it is not just slightly better, it is in a different tier. The GTX 660’s 144.2 GB/s of dedicated memory bandwidth and 1.981 TFLOPS of FP32 throughput give it the raw resources for compute-heavy tasks.

The UHD 750 wins in the context of power efficiency and integration. It has a 15 W TDP versus 140 W for the GTX 660, which is a 125 W difference. It requires no power connectors, no dual-slot cooler, and no discrete card length. For a system that needs basic graphics without adding a card, the UHD 750 is the only viable choice, but it sacrifices performance. Its 665.6 GFLOPS FP32 and system shared memory are enough for light tasks, but the benchmark data shows it trails the GTX 660 by at least 40% in every shared test.

The practical advice from the data is simple. If you have a slot and power budget for a discrete GPU, the GTX 660 provides dramatically better compute performance. If you are building a low-power system with no discrete card, the UHD 750 is the integrated option, but you should not expect it to match the GTX 660 in any OpenCL or Vulkan workload. The GTX 660’s 2 wins and 0 losses against the UHD 750 reflect a performance hierarchy that is consistent across every measurement in this comparison.