Intel Core i9-9900

The Intel Core i9-9900 is an 8-core, 16-thread desktop processor built on the 14 nm Coffee Lake architecture, occupying the Intel Socket 1151 platform. Released in April 2019 with a launch MSRP of $423, this part is now end-of-life but still holds a firm position in the benchmark database, sitting at the 60th percentile of all CPUs tested. With a base clock of 3.10 GHz and a boost clock of 5.00 GHz, the chip pairs a 65 W TDP with a 16 MB shared L3 cache, UHD Graphics 630 integrated graphics, and dual-channel DDR4 memory support delivering 42.7 GB/s of bandwidth.

Benchmark Performance

The Core i9-9900 delivers a robust multi-threaded showing, with Cinebench R23 multicore results reaching 13,854 points and single-core results at 1,955 points. In the older Cinebench R20 suite, the processor scores 5,818 multi-core and 821 single-core, while the R15 generation yields 1,396 multi-core and 197 single-core. These figures place the chip in a narrow competitive band; its average benchmark score of 4,007 lands just 0.1% behind the AMD Ryzen 5 PRO 4655G, which averages 4,010. The delta is negligible—less than a single percentage point—meaning the two processors are effectively interchangeable in aggregate workload performance.

Against the Intel Xeon E5-2698B v3, the i9-9900 holds a razor-thin 0.1% lead, averaging 4,007 versus 4,004. The margin is so small it falls within typical run-to-run variance, indicating that the desktop i9 and the older server-class Xeon deliver nearly identical average throughput. The story repeats with the Intel Core i9-13900TE, where the 9900 trails by just 0.2% (4,007 vs. 3,998), and the AMD Ryzen Threadripper 1900X, where it leads by 0.3% (4,007 vs. 3,995). Across all four nearest rivals, the score spread is only 15 points, or roughly 0.4% total, underscoring how tightly clustered this performance tier has become. For Cinebench R23 specifically, the multicore score of 13,854 suggests strong sustained rendering capability for an 8-core part, while the single-core score of 1,955 demonstrates excellent per-thread efficiency, given the high 5.00 GHz boost clock.

How It Compares

AMD Ryzen 5 PRO 4655G: The i9-9900 trails this AMD part by a mere 0.1% in average benchmark score, a difference of just 3 points (4,007 vs. 4,010). This effectively means parity in mixed workloads, though the i9’s higher boost clock likely gives it an edge in lightly threaded tasks, while the 4655G’s integrated graphics may appeal to different use cases. The benchmark data shows no meaningful winner here—both chips occupy the same performance envelope.

Intel Xeon E5-2698B v3: The i9-9900 edges out this Xeon by 0.1%, with scores of 4,007 and 4,004 respectively. The Xeon is a server-oriented part, yet the desktop i9 matches its average throughput, a signal of the i9’s strong single-thread performance and high clock speeds compensating for fewer cores. In multi-threaded rendering, the Xeon’s higher core count likely helps, but the aggregate data suggests the i9 holds its own.

Intel Core i9-13900TE: The newer 13900TE leads the 9900 by 0.2%, posting an average score of 3,998 versus 4,007. This is a marginal gap, and the 9900’s higher boost clock of 5.00 GHz may close the gap in single-threaded scenarios. The 13900TE is a low-power embedded variant, so the fact that the older 9900 comes within 0.2% highlights how competitive the Coffee Lake design remains in this metric.

AMD Ryzen Threadripper 1900X: The i9-9900 leads this Threadripper by 0.3%, scoring 4,007 against 3,995. The Threadripper is a high-end desktop part with more PCIe lanes and memory channels, but in raw average CPU throughput, the i9’s superior clock speed and IPC win out. This is one of the few comparisons where the i9 shows a clear, albeit small, advantage.

Power and Thermals

The Core i9-9900 carries a 65 W TDP, a notably low figure for an 8-core, 16-thread processor running at up to 5.00 GHz. This power envelope places the chip in a class that a capable air cooler can handle comfortably; the data does not indicate a need for liquid cooling or oversized tower heatsinks. The 14 nm process node and Coffee Lake-R architecture likely contribute to this efficiency, allowing the chip to maintain high boost clocks without exceeding the 65 W thermal design point under sustained loads.

For system builders, this TDP class means the i9-9900 can drop into standard ATX or even compact builds with modest cooling solutions, provided the Intel Socket 1151 motherboard offers adequate VRM headroom. The integrated UHD Graphics 630 adds another layer of flexibility, allowing basic display output without a discrete GPU, though the dual-channel DDR4 memory bus at 42.7 GB/s will feed both CPU and iGPU workloads. The locked multiplier (unlocked is false) means overclocking is not an option, so the 65 W TDP effectively caps thermal output—users seeking higher performance would need to rely on the stock 3.10 GHz base and 5.00 GHz boost behavior.

FAQ

Q: What is the average benchmark score of the Intel Core i9-9900?

A: The average benchmark score is 4,007, which places the CPU at the 60th percentile of all processors in the database.

Q: How does the i9-9900 compare to the AMD Ryzen 5 PRO 4655G?

A: The i9-9900 trails by just 0.1%, scoring 4,007 versus the Ryzen’s 4,010, making the two effectively equal in average performance.

Q: What are the Cinebench R23 scores for this processor?

A: In Cinebench R23, the i9-9900 scores 13,854 in multicore and 1,955 in single-core tests.

Q: What is the TDP of the i9-9900?

A: The thermal design power is 65 W, which allows for a capable air cooler without requiring advanced liquid cooling solutions.

Q: Does the i9-9900 support ECC memory?

A: No, ECC memory is not supported; the chip uses dual-channel DDR4 memory with a bandwidth of 42.7 GB/s.

Q: What is the release date and production status?

A: The processor was released on April 22, 2019, and is now marked as end-of-life, with a launch MSRP of $423.

Single-Thread vs Multi-Thread Behavior

The benchmark split reveals a processor optimized for high-frequency responsiveness. In Cinebench R23, the single-core score of 1,955 against a multicore score of 13,854 yields a ratio of about 7.1x scaling across 8 cores, which is typical for a well-behaved 8-core design with a 5.00 GHz boost. The R20 results show a similar pattern: 821 single-core and 5,818 multi-core, a 7.1x multiplier. This scaling suggests that the i9-9900 maintains consistent per-core performance under full load, with minimal thermal or power throttling—a direct benefit of the 65 W TDP keeping heat density manageable.

For real-world workloads, this behavior means the i9-9900 excels at tasks that demand high single-thread speed, such as gaming, legacy software, and lightly threaded productivity apps, where the 5.00 GHz boost clock can shine. Conversely, the multi-threaded scores indicate strong rendering and video encoding capability for an 8-core part, though the 16 MB shared L3 cache and dual-channel memory bandwidth of 42.7 GB/s may limit scaling in memory-intensive workloads compared to higher-core-count rivals. The 0.1% to 0.3% deltas against nearest rivals in average score suggest that, whether a workload is single-threaded or multi-threaded, the i9-9900 remains competitive with its direct peers, neither dominating nor being dominated in aggregate throughput. The Cinebench R15 results—197 single-core and 1,396 multi-core—reinforce this balance, showing a 7.1x scaling consistent across all three Cinebench versions, indicating stable performance characteristics across software generations.