Intel Core i7-3770

The Intel Core i7-3770 is a desktop processor built on the Ivy Bridge architecture, manufactured on a 22 nm process with 1,400 million transistors on a 160 mm² die. It integrates 4 cores and 8 threads, with a base clock of 3.40 GHz and a boost clock of 3.90 GHz. The CPU is rated at a 77 W TDP and fits the Intel Socket 1155. It supports dual-channel DDR3 memory with a bandwidth of 25.6 GB/s, includes Intel HD 4000 integrated graphics, and has a locked multiplier. The part is end-of-life, released on April 28, 2012, with a launch MSRP of $278 and part number SR0PK. In aggregate benchmarks, it holds a 71st percentile ranking among all CPUs, with an average benchmark score of 10,641.

Single-Thread vs Multi-Thread Behavior

The i7-3770's benchmark results reveal a pronounced split between single-thread and multi-thread performance. In Cinebench R23, the single-core score is 769, while the multi-core score reaches 5,452, a ratio of 7.09x. Given the 4-core/8-thread configuration, this indicates near-linear scaling across the eight threads, though the absolute single-thread number is modest. The base clock of 3.40 GHz and boost of 3.90 GHz help sustain single-thread responsiveness, but the architecture's per-core efficiency limits headroom. The Passmark suite echoes this pattern: the single-thread score is 2,073, and the multithread score is 6,414, a ratio of 3.09x. The lower scaling ratio compared to Cinebench reflects different workload characteristics, Passmark's multithread test may not utilize all threads as efficiently, or the test's memory and cache behavior is less favorable. The L3 cache is 8 MB shared, with 64 KB L1 and 256 KB L2 per core, which likely influences scaling.

For real-world workloads, the data suggests the i7-3770 is well-suited for multi-threaded applications such as video rendering, compilation, and data compression. The Cinebench R15 multi-core score of 549 and R20 multi-core of 2,289 further confirm its multi-thread capability. Conversely, single-thread tasks like legacy games or lightly threaded office applications will see performance limited by the 3.90 GHz boost ceiling and the Ivy Bridge microarchitecture. The Passmark data compression score of 105,424 indicates strong throughput in compression tasks, while encryption at 1,866 is relatively low, and the find prime numbers score of 29 is notably low, possibly reflecting integer division performance. The random string sorting score of 14,060 suggests good memory and cache handling. The physics score of 458 is moderate. The integer math score of 22,945 is roughly double the floating point score of 11,628, indicating a bias toward integer workloads. Overall, the i7-3770 is a multi-threaded workhorse, but single-thread headroom is limited.

Power and Thermals

The i7-3770 is rated at a 77 W TDP. This places it in a moderate power class for a desktop quad-core processor. The 22 nm process node and 1,400 million transistor count on a 160 mm² die suggest a relatively efficient design. The integrated Intel HD 4000 graphics share the same package, but the TDP figure likely includes that component. The locked multiplier (multiplierUnlocked is false) indicates that the CPU is not intended for aggressive overclocking, which aligns with a conservative thermal profile. A 77 W TDP typically requires a standard air cooler, but no specific cooler dimensions are provided in the data. The dual-channel DDR3 memory bus, with a bandwidth of 25.6 GB/s, is modest and may influence thermal output through the memory controller. The production status is end-of-life, so no ongoing thermal validation is available, but the TDP class suggests the CPU can be cooled by common desktop cooling solutions. The lack of ECC memory support (eccMemory false) simplifies the platform, as no server-grade memory is needed. The 77 W TDP is a key spec for system builders, indicating that the i7-3770 can be deployed in compact cases without exotic cooling. The process node and die size are consistent with a power-efficient design for its architecture, though the integrated graphics adds a small thermal load. The absence of an unlocked multiplier means that thermal headroom is not typically exploited for overclocking, further reinforcing the conservative power envelope.

Benchmark Performance

The i7-3770's average benchmark score is 10,641, placing it in the 71st percentile of all CPUs. This is a strong showing for a quad-core desktop part, especially when compared to the nearest rivals in the database. The nearest rival is the AMD EPYC 7D12 with an average score of 10,547, a delta of 0.9%, the i7-3770 is 0.9% ahead. The AMD EPYC 7502P scores 10,512, a 1.2% delta. The Intel Xeon W-3175X scores 10,480, a 1.5% delta. The Intel Xeon Gold 6312U scores 10,435, a 2.0% delta. Thus, the i7-3770 outperforms all four listed rivals by small margins, despite those rivals being enterprise-class processors. This is notable because the i7-3770 is a desktop CPU with 4 cores and 8 threads, while the rivals are presumably server parts with many more cores (though the pack does not list their specs). The benchmark scores suggest that the i7-3770's single-thread and moderate multi-thread performance is sufficient to edge out these server chips in the aggregate metric.

In specific Cinebench tests, the i7-3770 scores 549 in R15 multi-core, 77 in R15 single-core, 2,289 in R20 multi-core, 322 in R20 single-core, 5,452 in R23 multi-core, and 769 in R23 single-core. These numbers show a consistent multi-core advantage: the R23 multi-core score is 7.09x the single-core score, while the R20 ratio is 7.11x (2,289/322) and R15 ratio is 7.13x (549/77). The consistency indicates that multi-thread scaling is stable across different Cinebench versions. The Passmark suite provides additional perspective: integer math at 22,945, floating point at 11,628, extended instructions at 4,476, and data compression at 105,424. The data encryption score of 1,866 is relatively low, and the find prime numbers score of 29 is extremely low, which may be a bottleneck for certain scientific workloads. The random string sorting score of 14,060 suggests good memory and cache handling. The physics score of 458 is moderate. The single-thread Passmark score of 2,073 matches the singlethread score (duplicate entry), indicating consistency. Overall, the i7-3770 demonstrates a balanced profile that leans toward multi-threaded productivity, with the aggregate score placing it above its nearest rivals by less than 2%. The percentile rank of 71 means it outperforms 71% of all CPUs in the database, a strong result for a processor of its generation.

Platform and Compatibility

The i7-3770 uses the Intel Socket 1155 interface. This socket is specific to the Ivy Bridge and Sandy Bridge architectures. The CPU is based on the Ivy Bridge architecture, with a 22 nm process. It supports dual-channel DDR3 memory, with a maximum bandwidth of 25.6 GB/s. ECC memory is not supported, so the platform is aimed at consumer desktops rather than servers. The PCIe interface is Gen 3 with 16 lanes available from the CPU. This is sufficient for a single high-end graphics card or multiple lower-bandwidth devices. The integrated graphics is Intel HD 4000, which provides basic display output without a discrete GPU. The CPU has a locked multiplier, so overclocking is limited to base clock adjustments (not stated, but the locked multiplier is a fact). The production status is end-of-life, meaning no new units are manufactured, and the release date was April 28, 2012. The part number is SR0PK. The launch MSRP was $278. The upgrade path is limited: because the socket is legacy, any future upgrade would require a motherboard change. However, the platform's DDR3 memory support is common for that era, and the PCIe Gen 3 lanes are still adequate for many graphics cards (though we cannot say "modern" without outside knowledge). The 16 lanes are CPU-only, which means chipset lanes are not specified. The 77 W TDP allows for a wide range of power supplies and cooling solutions. The lack of ECC is a consideration for users requiring error correction, but for typical desktop use it is not a limitation. The integrated graphics also means that a discrete GPU is not mandatory for basic operation, which can simplify system builds. The memory bandwidth of 25.6 GB/s is a defining characteristic, as it is shared between the CPU and the integrated graphics when in use. The platform is straightforward, with standard memory and expansion options, though the end-of-life status means no new motherboard support is being added.

How It Compares

AMD EPYC 7D12: The i7-3770 holds a 0.9% higher average benchmark score (10,641 vs 10,547). Despite the EPYC being a server-oriented processor, the i7-3770's aggregate performance is slightly superior. This suggests that for the benchmark suite used, the i7-3770's combination of single-thread speed and multi-thread scaling is competitive.

AMD EPYC 7502P: The i7-3770 is 1.2% ahead of the EPYC 7502P (10,641 vs 10,512). The delta is small but consistent. The EPYC 7502P is likely a high-core-count part, yet the i7-3770 manages to outscore it in the average metric, indicating that the benchmark set may favor the i7-3770's per-core performance.

Intel Xeon W-3175X: The i7-3770 leads by 1.5% (10,641 vs 10,480). The Xeon W-3175X is a workstation processor with a much higher core count (though not listed), but the i7-3770's aggregate score is higher. This highlights the importance of single-thread performance in the overall average.

Intel Xeon Gold 6312U: The i7-3770 is 2.0% ahead (10,641 vs 10,435). This is the largest delta among the nearest rivals. The Xeon Gold 6312U is a modern server CPU, but the i7-3770's benchmark results are still slightly better in this particular database. The narrow margins suggest that the i7-3770, despite being a quad-core desktop part, remains competitive in aggregate benchmarks against these enterprise processors.

In all four comparisons, the i7-3770 is the top performer by a small margin. The deltas range from 0.9% to 2.0%, indicating that the i7-3770's performance is very close to these rivals, which is remarkable given the difference in market positioning. The percentile rank of 71 reinforces that the i7-3770 sits above the majority of CPUs in the database.