Intel Celeron G6900T vs Intel Core i5-6500T Comparison

Where Each One Wins

The benchmark split between these two desktop processors is unusually lopsided, but the single victory for the Intel Celeron G6900T is a significant one. The data records seven head-to-head comparisons, and the Intel Core i5-6500T claims six of them. The Celeron G6900T wins only the Geekbench single-core test, but it does so by a commanding margin. That result points to a clear division of labor: the Core i5-6500T is the multi-threaded workhorse, while the Celeron G6900T excels in lightly threaded, latency-sensitive workloads.

The Core i5-6500T dominates every Cinebench iteration in the database, from the older R15 release to the current R23. Its margins are remarkably consistent across all of those tests, hovering just above 23 percent. That consistency suggests the advantage is structural rather than workload-specific. The Core i5-6500T also wins the Geekbench multi-core test, though by a smaller margin of 13.5 percent. The Celeron G6900T, by contrast, posts a 40 percent lead in Geekbench single-core, its only recorded win.

For users running heavily threaded applications, rendering workloads, or any task that scales across cores, the Core i5-6500T is the clear choice. The data shows its four physical cores deliver a substantial throughput advantage over the Celeron's two cores. For single-threaded responsiveness, everyday desktop interaction, or older software that relies on one primary thread, the Celeron G6900T's newer architecture gives it a decisive edge. The Celeron also sits in the 35th percentile of all CPUs in the database, while the Core i5-6500T sits just one point higher at the 36th percentile, meaning both are positioned near the lower-middle range of the overall performance distribution.

Architecture Differences

These two processors come from different eras of Intel design, and the architectural gap explains much of the benchmark behavior. The Celeron G6900T is built on Alder Lake-S, Intel's 10 nm process, while the Core i5-6500T uses the older Skylake architecture on a 14 nm node. The process shrink alone gives the Celeron a fundamental efficiency and frequency headroom advantage, even though it has fewer cores.

The core counts differ substantially. The Celeron G6900T has 2 cores and 2 threads, with no hyper-threading. The Core i5-6500T has 4 cores and 4 threads, also without hyper-threading. That doubling of physical cores is the primary reason for the Core i5's multi-core wins. Cache configurations also reflect the generational gap. The Celeron G6900T has 80 KB of L1 cache per core and 1.25 MB of L2 per core, while the Core i5-6500T has 64 KB of L1 per core and 256 KB of L2 per core. The Celeron's much larger per-core L2 is a hallmark of newer Intel designs and contributes to its single-core strength. However, the Core i5-6500T has 6 MB of shared L3 cache, compared to 4 MB on the Celeron.

Socket and platform support diverge completely. The Celeron G6900T uses Intel Socket 1700, while the Core i5-6500T uses Intel Socket 1151. Memory support also differs: the Celeron supports DDR4 and DDR5, whereas the Core i5-6500T supports DDR3 and DDR4. Both use dual-channel memory buses. The Celeron supports PCIe Gen 5, while the Core i5-6500T is limited to PCIe Gen 3 with 16 lanes from the CPU. The integrated graphics solutions are different as well, with the Celeron featuring UHD Graphics 710 and the Core i5-6500T featuring HD Graphics 530. Neither processor supports ECC memory.

The production status tells a story of lifecycle: the Celeron G6900T is marked Active, while the Core i5-6500T is End-of-life. The Celeron was released on 2022-01-03, roughly six and a half years after the Core i5-6500T's 2015-07-01 launch. The Core i5-6500T also carries a documented die size of 122 mm², a figure not recorded for the Celeron.

Head-to-Head Benchmarks

The most striking result in the entire comparison is the Geekbench single-core test. The Celeron G6900T scores 1422, while the Core i5-6500T scores 1016. That is a 40 percent advantage for the Celeron, the largest delta in either direction across all seven benchmarks. It is a definitive statement about the per-core capability of the newer Alder Lake architecture versus the older Skylake design.

Every other benchmark goes the other way. In Cinebench R15 multi-core, the Core i5-6500T scores 408 against the Celeron's 314, a 23 percent deficit for the Celeron. Cinebench R20 multi-core shows the Core i5-6500T at 1702 versus 1309, again a 23.1 percent gap. The single-core Cinebench R20 test follows the same pattern: 240 for the Core i5-6500T versus 184 for the Celeron, a 23.3 percent difference. Notably, this single-core Cinebench result contradicts the Geekbench single-core outcome, highlighting how different benchmark suites can weight architectural features differently.

Cinebench R23 multi-core repeats the multi-threaded story: the Core i5-6500T scores 4054, the Celeron scores 3117, a 23.1 percent deficit. Cinebench R23 single-core also favors the Core i5-6500T at 572 versus 440, a 23.1 percent gap. Geekbench multi-core is the closest multi-threaded contest: the Core i5-6500T scores 2843 against the Celeron's 2460, a 13.5 percent advantage. The consistency of the Cinebench margins, all within a narrow band around 23 percent, suggests a stable performance relationship in that benchmark suite, while Geekbench's two tests produce wildly different outcomes, 40 percent one way and 13.5 percent the other.

The average benchmark scores reflect the overall picture. The Celeron G6900T averages 1321 across all recorded tests, while the Core i5-6500T averages 1362. That is a modest overall gap of about 3 percent, a much smaller difference than the individual Cinebench tests suggest, because the Celeron's huge Geekbench single-core win pulls its average up. The nearest rivals in the database show both processors clustering in a tight band: the Celeron sits within 0.6 percent of the Intel Core i5-4570R and Intel Core i7-3770T, while the Core i5-6500T trades fractions with the Intel Core i5-8365UE, Intel Core i7-3820QM, Intel Xeon D-1521, and Intel Xeon E3-1226 v3.

Specification Differences

The two processors differ in several key specification fields. The Celeron G6900T has 2 cores and 2 threads, while the Core i5-6500T has 4 cores and 4 threads. Base clocks are close: the Celeron runs at 2.80 GHz, the Core i5 at 2.50 GHz. Only the Core i5-6500T has a recorded boost clock of 3.10 GHz; the Celeron lists no boost clock in the database. Both are locked processors with no unlocked multiplier.

The process nodes differ: 10 nm for the Celeron, 14 nm for the Core i5. Cache hierarchies are distinct, with the Celeron offering 80 KB L1 and 1.25 MB L2 per core, versus 64 KB L1 and 256 KB L2 per core on the Core i5. The shared L3 cache is 4 MB on the Celeron and 6 MB on the Core i5. The Core i5-6500T has a documented memory bandwidth of 34.1 GB/s, a figure not recorded for the Celeron.

Memory support shows a generational split: the Celeron supports DDR4 and DDR5, the Core i5 supports DDR3 and DDR4. PCIe support is Gen 5 on the Celeron versus Gen 3 on the Core i5. The socket is 1700 for the Celeron and 1151 for the Core i5. Integrated graphics are UHD Graphics 710 versus HD Graphics 530. The Celeron has a launch MSRP of $42; no launch MSRP is recorded for the Core i5-6500T. The Core i5-6500T has a die size of 122 mm², while the Celeron's die size is not listed. Neither processor supports ECC memory. The Celeron is marked Active, the Core i5 is End-of-life.

FAQ

Q: Which processor has more cores?

A: The Intel Core i5-6500T has 4 cores and 4 threads, exactly double the 2 cores and 2 threads of the Intel Celeron G6900T.

Q: Why does the Celeron win the Geekbench single-core test by such a large margin?

A: The Celeron G6900T scores 1422 in Geekbench single-core versus 1016 for the Core i5-6500T, a 40 percent advantage. This likely reflects the newer Alder Lake architecture, which uses a 10 nm process compared to the Core i5's 14 nm Skylake design, along with significantly larger per-core L2 cache of 1.25 MB versus 256 KB.

Q: Is the Core i5-6500T faster in all multi-core tests?

A: Yes, the data shows the Core i5-6500T wins all five multi-core benchmarks recorded: Cinebench R15, R20, R23, and Geekbench multi-core. Its margins range from 13.5 percent in Geekbench multi-core to roughly 23 percent across the Cinebench suite.

Q: Do both processors support the same memory types?

A: No. The Celeron G6900T supports DDR4 and DDR5 memory, while the Core i5-6500T supports DDR3 and DDR4. Both use dual-channel memory buses.

Q: Which processor is still in production?

A: The Intel Celeron G6900T is listed as Active in the database, while the Intel Core i5-6500T is marked End-of-life.

Q: How close are these processors in overall average performance?

A: The average benchmark scores are 1321 for the Celeron G6900T and 1362 for the Core i5-6500T, a difference of roughly 3 percent. The Core i5-6500T sits at the 36th percentile of all CPUs, while the Celeron sits at the 35th percentile.