INTEL

Intel Core i5-3450S

Intel processor specifications and benchmark scores

4
Cores
4
Threads
3.5
GHz Boost
65W
TDP
Integrated GPU

At a Glance

Intel
Cores / Threads 4C / 4T
Boost Clock 3.5 GHz
Base Clock 2.8 GHz
L3 Cache 6 MB (shared)
TDP 65W
Architecture Ivy Bridge
Socket Intel Socket 1155
nm
Process 22 nm
Released Apr 2012

Intel Core i5-3450S Specifications

Core i5-3450S Core Configuration

Processing cores and threading

The Intel Core i5-3450S features 4 physical cores and 4 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
4
Threads
4
SMP CPUs
1

i5-3450S Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core i5-3450S benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Core i5-3450S by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
2.8 GHz
Boost Clock
3.5 GHz
Multiplier
28x

Intel's Core i5-3450S Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the i5-3450S processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Core i5-3450S's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
64 KB (per core)
L2 Cache
256 KB (per core)
L3 Cache
6 MB (shared)

Ivy Bridge Architecture & Process

Manufacturing and design details

The Intel Core i5-3450S is built on Intel's 22 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in i5-3450S incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Ivy Bridge
Codename
Ivy Bridge
Process Node
22 nm
Foundry
Intel
Transistors
1,400 million
Die Size
160 mm²
Generation
Core i5 (Ivy Bridge)

Ivy Bridge Instruction Set Features

Supported CPU instructions and extensions

The Core i5-3450S by Intel supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
SSE3
SSSE3
SSE4.1
SSE4.2
AVX
AES-NI
F16C
Intel 64
VT-x
VT-d

i5-3450S Power & Thermal

TDP and power specifications

The Intel Core i5-3450S has a TDP (Thermal Design Power) of 65W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
65W

Intel Socket 1155 Platform & Socket

Compatibility information

The Core i5-3450S uses the Intel Socket 1155 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
Intel Socket 1155
PCIe
Gen 3, 16 Lanes(CPU only)
Package
FC-LGA12C
DDR5

Intel Socket 1155 Memory Support

RAM compatibility and speeds

Memory support specifications for the i5-3450S define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Core i5-3450S determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR3
Memory Bus
Dual-channel

Intel's Core i5-3450S Integrated Graphics

Built-in GPU specifications

The Intel Core i5-3450S includes integrated graphics, eliminating the need for a dedicated GPU in basic computing scenarios. Integrated graphics are ideal for office productivity, video playback, and light gaming. While not designed for demanding GPU benchmarks, the iGPU in the i5-3450S provides hardware video encoding and decoding capabilities. This makes the processor suitable for compact builds, HTPCs, and systems where power efficiency is prioritized over gaming performance.

iGPU
Intel HD 2500
Graphics Model
Intel HD 2500

Core i5-3450S Product Information

Release and pricing details

The Intel Core i5-3450S is manufactured by Intel and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Core i5-3450S by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Apr 2012
Market
Desktop
Part Number
SR0P2

Core i5-3450S Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how Intel Core i5-3450S performs in parallel rendering workloads like video production and 3D animation. The R15 version remains useful for comparing against older hardware benchmarks. Higher scores directly correlate with faster render times in Cinema 4D and similar 3D applications.

cinebench_cinebench_r15_multicore #1351 of 1967
377
3%
Max: 14,978

cinebench_cinebench_r15_singlecoreSource

Cinebench R15 single-core measures the speed of one CPU thread rendering 3D geometry. This score indicates how Intel Core i5-3450S handles tasks that can't be parallelized across multiple cores. Games and many desktop applications still rely heavily on single-thread performance. A higher single-core score means snappier system responsiveness in everyday use.

cinebench_cinebench_r15_singlecore #1376 of 1400
53
3%
Max: 2,114

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on Intel Core i5-3450S. The more demanding workload provides better differentiation between current-generation processors.

cinebench_cinebench_r20_multicore #1181 of 1786
1,573
3%
Max: 62,412
Compare with other CPUs

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of Intel Core i5-3450S. The increased complexity provides more accurate performance differentiation between modern CPUs.

cinebench_cinebench_r20_singlecore #1175 of 1776
222
3%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of Intel Core i5-3450S after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss.

cinebench_cinebench_r23_multicore #1316 of 1938
3,747
3%
Max: 148,601
Compare with other CPUs

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how Intel Core i5-3450S maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance.

cinebench_cinebench_r23_singlecore #1317 of 1923
529
3%
Max: 20,979

geekbench_multicoreSource

Geekbench multi-core tests Intel Core i5-3450S across real-world workloads including image processing, machine learning, and data compression. All available threads are utilized to measure parallel performance. Higher scores indicate better capability in multitasking and content creation.

geekbench_multicore #631 of 830
1,712
6%
Max: 26,736

geekbench_singlecoreSource

Geekbench single-core measures how fast one thread of Intel Core i5-3450S can process tasks like web browsing and document editing. This score correlates with how snappy the system feels during normal use. Many applications still depend primarily on single-thread performance.

geekbench_singlecore #663 of 829
581
19%
Max: 3,064

About Intel Core i5-3450S

The Intel Core i5-3450S is a 4-core, 4-thread desktop processor built on Intel’s 22 nm Ivy Bridge process. It runs at a 2.80 GHz base clock and a 3.50 GHz boost clock, with a 65 W TDP. Benchmarks place it at the 30th percentile of all CPUs, with an average benchmark score of 1088. Its nearest rivals are the AMD Athlon 220GE, Intel Pentium 6805, Intel Core i5-2450P, and Intel Core i7-4600M, all clustered around the same aggregate score.

How It Compares

The AMD Athlon 220GE is the closest rival in aggregate performance, with an average benchmark score of 1088 and a deltaPct of 0. That means the two chips are exactly tied in the database’s average score. This is not a case of one part edging out the other; the aggregate data shows no measurable difference between them.

The Intel Pentium 6805 averages 1087, giving the Core i5-3450S a deltaPct of 0.1. The 3450S is technically ahead, but the margin is tiny. In practical terms, the aggregate benchmark results are equivalent for this pair, with only a fractional score difference separating them.

The Intel Core i5-2450P averages 1086, and the deltaPct is 0.2. Again, the lead is very small. The 3450S sits just above the i5-2450P in the average score, but the difference is not large enough to suggest a meaningful performance gap between the two processors.

The Intel Core i7-4600M averages 1091, and the deltaPct is -0.3. This is the only nearest rival with a higher average score. The 3450S trails it by 0.3 percent, which is still a narrow margin. The four closest rivals therefore form a tight cluster around the 3450S, with none of them separating itself by a substantial amount.

Power and Thermals

The 65 W TDP places the Core i5-3450S in a mainstream desktop power class. The processor uses Intel’s 22 nm Ivy Bridge process, with a die size of 160 mm² and 1,400 million transistors. Those figures help explain how four cores fit within a 65 W envelope. A capable air cooler should be sufficient; the TDP does not point toward exotic cooling requirements. The integrated Intel HD 2500 graphics also means a basic system can operate without a discrete GPU, which can reduce overall heat generation in a simple desktop build. For compact or lower-noise systems, the 65 W classification is relevant, though the exact thermal behavior will depend on the motherboard and case airflow.

Benchmark Performance

The benchmark results are spread across multiple Cinebench and Geekbench versions. In Cinebench R15, the multi-core score is 372 and the single-core score is 52. In Cinebench R20, the multi-core score is 1551 and the single-core score is 218. In Cinebench R23, the multi-core score is 3695 and the single-core score is 521. In Geekbench, the multi-core score is 1712 and the single-core score is 581.

The average benchmark score is 1088, and the 30th percentile position shows that the chip sits below the majority of all CPUs in the database. Among its nearest rivals, the margins are extremely tight. The AMD Athlon 220GE is exactly even at 1088, with a deltaPct of 0. The Intel Pentium 6805 is at 1087, giving the 3450S a 0.1 deltaPct. The Intel Core i5-2450P is at 1086, with a 0.2 deltaPct. The Intel Core i7-4600M is at 1091, with a -0.3 deltaPct. These deltas suggest that the 3450S is not an outlier in its immediate peer group; it is one of several similarly performing processors. The absolute benchmark scores are modest, but the aggregate position relative to these specific rivals is essentially a tie.

FAQ

Q: What is the average benchmark score of the Intel Core i5-3450S?

A: The average benchmark score is 1088.

Q: How does the Core i5-3450S compare to the AMD Athlon 220GE?

A: Both have an average benchmark score of 1088, so the deltaPct is 0. They are tied in aggregate performance.

Q: Does the Core i5-3450S support ECC memory?

A: No, ECC memory support is false in the specification data.

Q: What integrated graphics does the Core i5-3450S include?

A: It includes Intel HD 2500 integrated graphics.

Q: What memory type and bus does the Core i5-3450S support?

A: It supports DDR3 memory over a dual-channel bus.

Q: Is the multiplier unlocked on the Core i5-3450S?

A: No, multiplierUnlocked is false.

Single-Thread vs Multi-Thread Behavior

The Core i5-3450S has 4 cores and 4 threads, meaning the thread count equals the core count. There are no additional logical threads to draw from. The benchmark split shows this clearly: Cinebench R15 single-core is 52 and multi-core is 372; Cinebench R20 single-core is 218 and multi-core is 1551; Cinebench R23 single-core is 521 and multi-core is 3695; Geekbench single-core is 581 and multi-core is 1712. In every case, the multi-core result is substantially larger than the single-core result, which is expected from four physical cores working together. The 2.80 GHz base clock represents the sustained floor, while the 3.50 GHz boost clock matters most for lightly threaded tasks that depend on one or two cores.

For real workloads, this means applications that scale well across four threads will see the full benefit of the CPU. Applications that need more than four threads will hit a ceiling because there are no extra virtual threads. Lightly threaded tasks, such as older games or everyday productivity, will lean on the single-core score and the boost clock. Heavily threaded tasks, such as rendering or encoding, can use all four cores, but the lack of additional threads limits the potential beyond that point.

Platform and Compatibility

The Core i5-3450S uses Intel Socket 1155 and belongs to the Ivy Bridge architecture on a 22 nm process. Memory support is DDR3 with a dual-channel bus. ECC memory is not supported. The CPU provides PCIe Gen 3 with 16 lanes from the CPU only, which means the CPU is responsible for the primary 16-lane PCIe connection. It includes Intel HD 2500 integrated graphics, so a dedicated GPU is not mandatory for basic display output. The cache configuration includes 64 KB of L1 per core, 256 KB of L2 per core, and 6 MB of shared L3 cache. The part number is SR0P2, and the release date is 2012-04-28. The market segment is Desktop. Compatibility is therefore defined by Socket 1155, DDR3 memory, and the PCIe Gen 3 lane configuration; any platform built around these specifications is the natural fit.

Who Should Consider It

The Core i5-3450S makes sense for workloads that fit within four threads. The 4-core, 4-thread configuration and multi-core scores such as Cinebench R23 3695 and Geekbench multi-core 1712 indicate that moderately parallel tasks can be handled, but the 30th percentile aggregate ranking shows it is not a high-end multi-threaded performer. For office and everyday use, the single-core scores and 3.50 GHz boost are enough for responsive basic computing. For gaming, the integrated Intel HD 2500 graphics and modest single-core scores suggest that demanding modern titles are not the intended use case, while less demanding or older games may be acceptable. For creation workloads, the four-thread ceiling is the key limitation; software that can use more than four threads will not be able to take advantage of extra virtual cores. The 65 W TDP also makes this processor a reasonable choice for systems where low heat and modest cooling are priorities. It is not a chip for high-end, heavily threaded rendering or the latest high-fidelity gaming, but within its four-thread envelope it remains competitive with its nearest rivals.

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