Intel Core i7-4860HQ vs Intel Core i7-990X Comparison

The Intel Core i7-4860HQ and the Intel Core i7-990X are two end-of-life processors that represent radically different design philosophies from Intel. The 4860HQ is a 2014 mobile part built for efficiency, while the 990X is a 2011 desktop Extreme edition focused on raw multi-threaded throughput. The benchmark data shows a clear split: the older 990X dominates in sustained rendering workloads, while the newer 4860HQ delivers a massive victory in Geekbench tests. The average benchmark scores are nearly identical — 1720 for the 4860HQ versus 1713 for the 990X — placing them in the 41st and 40th percentiles of all CPUs, respectively. This near-parity in overall average masks a dramatic divergence in individual test results, making the choice between them entirely dependent on the specific workload.

Where Each One Wins

The Intel Core i7-990X is the undisputed champion of Cinebench rendering tests. Across all three versions of the Cinebench suite — R15, R20, and R23 — the 990X wins both single-core and multi-core tests. The margin is consistent at roughly 12.8% in favor of the 990X for every Cinebench iteration. This pattern indicates that the 990X’s higher base clock of 3.47 GHz and boost clock of 3.73 GHz provide a decisive advantage in single-threaded rendering tasks, while its six cores and twelve threads give it the edge in multi-threaded rendering as well. For anyone working in 3D rendering or animation, the 990X is the clear winner based on these results.

The Intel Core i7-4860HQ, in contrast, wins decisively in Geekbench tests. The 4860HQ scores 3527 in Geekbench multi-core, a 35% improvement over the 990X’s 2612. In Geekbench single-core, the 4860HQ’s 1045 score represents an 87.9% advantage over the 990X’s 556. This massive single-core win suggests that the 4860HQ’s newer Haswell architecture is far more efficient at integer and floating-point operations that Geekbench measures. The 4860HQ also benefits from a much lower TDP of 47 watts compared to the 990X’s 130 watts, making it the only realistic option for mobile or compact systems. For general productivity, everyday multitasking, and applications that favor modern instruction sets, the 4860HQ is the superior choice.

The overall wins tally confirms this split: the 990X wins six of the eight head-to-head benchmarks, while the 4860HQ wins two. However, the magnitude of the 4860HQ’s Geekbench victories is so large that it nearly compensates for the 990X’s consistent but smaller Cinebench margins. The average benchmark scores reflect this balance, with the 4860HQ at 1720 and the 990X at 1713, a difference of only 0.4% according to the nearest rival data.

Architecture Differences

The two processors come from different eras and different manufacturing processes. The Intel Core i7-4860HQ uses the Haswell architecture with the Crystalwell codename, built on a 22 nm process node. It contains 1,400 million transistors on a 264 mm² die. The 990X uses the older Westmere architecture with the Gulftown codename, manufactured on a 32 nm process with 1,170 million transistors on a 239 mm² die. The newer 22 nm process allows the 4860HQ to achieve comparable or better performance in some tests while consuming only 47 watts, a fraction of the 990X’s 130-watt TDP.

Core and thread counts differ significantly. The 4860HQ has four cores and eight threads, while the 990X has six cores and twelve threads. This gives the 990X a 50% advantage in raw thread count, which helps in heavily parallel workloads like Cinebench multi-core tests. Cache configurations also diverge: both have 64 KB of L1 cache and 256 KB of L2 cache per core, but the 990X has 12 MB of shared L3 cache, double the 6 MB found on the 4860HQ.

The memory controllers are another point of differentiation. Both support DDR3 memory, but the 4860HQ uses a dual-channel memory bus with a bandwidth of 25.6 GB/s, while the 990X uses a triple-channel memory bus. The 990X’s memory bandwidth is not listed in the data, but the triple-channel configuration suggests a wider memory path. Neither processor supports ECC memory.

The 4860HQ includes integrated graphics in the form of Intel HD 5200, making it a complete system-on-chip solution for mobile platforms. The 990X has no integrated graphics, requiring a discrete GPU. The 4860HQ uses the Intel BGA 1364 socket, which is a soldered mobile package, while the 990X uses the Intel Socket 1366 for desktop motherboards. The 990X has an unlocked multiplier for overclocking, while the 4860HQ’s multiplier is locked. PCIe support also differs: the 4860HQ provides Gen 3 with 16 lanes (CPU only), while the 990X uses Gen 2.

Head-to-Head Benchmarks

The most striking result in the head-to-head data is the Geekbench single-core test. The 4860HQ scores 1045, which is 87.9% higher than the 990X’s 556. This is the largest delta in the entire comparison and demonstrates the generational leap in per-core performance between Westmere and Haswell. Even with a lower base clock of 2.40 GHz and boost clock of 3.60 GHz, the 4860HQ’s modern architecture delivers nearly double the single-core Geekbench performance of the 990X.

Geekbench multi-core shows a similar story, though less extreme. The 4860HQ’s 3527 score beats the 990X’s 2612 by 35%. This is notable because the 990X has two more cores and four more threads. The 4860HQ compensates for its core deficit with superior per-core efficiency, achieving a higher multi-core score despite having fewer physical resources.

The Cinebench results tell the opposite story. In Cinebench R23 multi-core, the 990X scores 6071 versus the 4860HQ’s 5297, a 12.7% difference. The pattern holds for Cinebench R20 multi-core: 2549 for the 990X versus 2224 for the 4860HQ, a 12.8% gap. Cinebench R15 multi-core shows 611 for the 990X against 533 for the 4860HQ, again 12.8%. The consistency of this margin across all three Cinebench versions suggests that the 990X’s six cores and twelve threads provide a fixed advantage in this particular rendering workload.

Even in Cinebench single-core tests, the 990X wins. Cinebench R23 single-core shows 857 for the 990X versus 747 for the 4860HQ, a 12.8% delta. Cinebench R20 single-core is 359 versus 313, and Cinebench R15 single-core is 86 versus 75, both also 12.8%. This is surprising given the 4860HQ’s dominance in Geekbench single-core. The explanation likely lies in the 990X’s much higher clock speeds — 3.47 GHz base and 3.73 GHz boost — which give it a raw clock speed advantage of over 1 GHz that older rendering workloads can exploit.

FAQ

Q: Which processor is faster in Cinebench rendering tests?

A: The Intel Core i7-990X wins all six Cinebench tests (R15, R20, and R23, each in both single-core and multi-core). The margin is consistent at approximately 12.8% across all tests, with Cinebench R23 multi-core showing a 12.7% difference.

Q: Why does the 4860HQ win Geekbench tests despite having fewer cores?

A: The 4860HQ’s Haswell architecture is significantly more efficient per core. In Geekbench multi-core, it scores 3527 versus 2612 for the 990X, a 35% advantage. In single-core, the 4860HQ’s 1045 score beats the 990X’s 556 by 87.9%.

Q: How do the average benchmark scores compare?

A: The 4860HQ has an average benchmark score of 1720, while the 990X averages 1713. This places them in the 41st and 40th percentiles of all CPUs, respectively, with a mere 0.4% difference in average performance.

Q: Can the 990X be overclocked?

A: Yes, the Intel Core i7-990X has an unlocked multiplier, allowing for overclocking. The 4860HQ does not have an unlocked multiplier, so its clock speeds are fixed.

Q: Which processor is more suitable for a mobile system?

A: The 4860HQ is the only viable option for mobile use. It is designed for the Intel BGA 1364 socket, has a TDP of 47 watts, and includes integrated Intel HD 5200 graphics. The 990X has a 130-watt TDP, uses the desktop Socket 1366, and has no integrated graphics.

Q: Do both processors support the same memory type?

A: Both support DDR3 memory, but the 4860HQ uses a dual-channel configuration with 25.6 GB/s bandwidth, while the 990X uses a triple-channel configuration. Neither supports ECC memory.

Specification Differences

The two processors differ in nearly every major specification category. The 4860HQ has 4 cores and 8 threads, while the 990X has 6 cores and 12 threads. Base clocks are 2.40 GHz for the 4860HQ and 3.47 GHz for the 990X, with boost clocks of 3.60 GHz and 3.73 GHz respectively. The TDP difference is substantial: 47 watts for the 4860HQ versus 130 watts for the 990X.

Architecture and production details are distinct. The 4860HQ uses Haswell on a 22 nm process with 1,400 million transistors and a 264 mm² die. The 990X uses Westmere on a 32 nm process with 1,170 million transistors and a 239 mm² die. L3 cache is 6 MB on the 4860HQ and 12 MB on the 990X. Memory bus widths differ: dual-channel for the 4860HQ versus triple-channel for the 990X. The memory bandwidth figure of 25.6 GB/s applies only to the 4860HQ.

Socket and packaging are completely different. The 4860HQ uses Intel BGA 1364, a mobile soldered package, while the 990X uses Intel Socket 1366 for desktop. The 4860HQ has integrated Intel HD 5200 graphics; the 990X has no integrated graphics. PCIe support is Gen 3 with 16 lanes for the 4860HQ, versus Gen 2 for the 990X. The 990X has an unlocked multiplier; the 4860HQ does not. The 4860HQ was released in 2014 with part number SR1BP, while the 990X was released in 2011 with part number SLBVZ. Both are end-of-life products.