Pentium G645T

Details and Benchmarks for Intel Pentium G645T

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Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Pentium G645T based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,242 Rank: 1610
Rank Name Score Visual
1606 Core 2 Duo E6750 4,244
+0%
1607 A8-3820 4,244
+0%
1608 Celeron G540 4,242
+0%
1609 Pentium E5500 4,242
+0%
1610 Pentium G645T 4,242
1611 Pentium 3805U 4,241
+-0%
1612 Athlon II X2 B24 4,241
+-0%
1613 Athlon II X2 250 4,240
+-0%
1614 Athlon II X2 215 4,239
-0.1%
1615 Celeron 4205U 4,239
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Pentium G645T based on multi-threaded benchmark results.

4,316 Rank: 1710
Rank Name Score Visual
1706 Athlon II X2 220 4,317
+0%
1707 Phenom X3 8550 4,317
+0%
1708 Core 2 Duo P9700 4,316
+0%
1709 A6-3400M 4,316
+0%
1710 Pentium G645T 4,316
1711 Atom x5-Z8500 4,315
+-0%
1712 Core i7-2640M 4,314
+-0%
1713 Core i5-2415M 4,314
+-0%
1714 Celeron 2957U 4,314
+-0%
1715 Core M 5Y71 4,313
-0.1%

View full ranking →

Singlecore Score

Single-core performance score for Pentium G645T based on single-threaded benchmark results.

4,192 Rank: 1584
Rank Name Score Visual
1580 Pentium B960 4,195
+0.1%
1581 Celeron J4005 4,195
+0.1%
1582 Celeron 3865U 4,195
+0.1%
1583 Pentium 3805U 4,193
+0%
1584 Pentium G645T 4,192
1585 A10-6700T 4,191
+-0%
1586 Athlon II X3 440 4,191
+-0%
1587 Celeron G1820TE 4,191
+-0%
1588 Athlon II X2 245 4,190
+-0%
1589 Pentium 4405U 4,189
-0.1%

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Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Pentium G645T based on integer math, floating point math, and prime number computation benchmarks.

4,505 Rank: 1499
Rank Name Score Visual
1495 Phenom II X2 565 4,505
+0%
1496 A9-9410 4,505
+0%
1497 A4-5300 4,505
+0%
1498 Core i5-4300Y 4,505
+0%
1499 Pentium G645T 4,505
1500 Core i3-2328M 4,504
+-0%
1501 Core i3-2310M 4,504
+-0%
1502 Athlon II X3 440 4,504
+-0%
1503 Xeon W3505 4,504
+-0%
1504 Core i3-3217U 4,504
+-0%

View full ranking →

Data Processing

Aggregated score for Pentium G645T based on data encryption, data compression, and string sorting benchmarks.

4,466 Rank: 1564
Rank Name Score Visual
1560 A9-9410 4,466
+0%
1561 Athlon II X2 245 4,466
+0%
1562 Atom Z3775 4,466
+0%
1563 Atom Z3770 4,466
+0%
1564 Pentium G645T 4,466
1565 Phenom II X2 B53 4,466
+0%
1566 Celeron J4025 4,466
+0%
1567 Pentium 4405Y 4,465
+-0%
1568 Core M-5Y10 4,465
+-0%
1569 A9-9420 4,465
+-0%

View full ranking →

Physics & Compute

Aggregated score for Pentium G645T based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,490 Rank: 1473
Rank Name Score Visual
1469 Athlon II X3 455 4,490
+0%
1470 Phenom II X3 710 4,490
+0%
1471 Core i5-4300Y 4,490
+0%
1472 Celeron G1820TE 4,490
+0%
1473 Pentium G645T 4,490
1474 Atom x7-E3950 4,490
+0%
1475 Atom C3508 4,489
+-0%
1476 Athlon II X3 460 4,489
+-0%
1477 A6-9500 4,489
+-0%
1478 Celeron G1610T 4,489
+-0%

View full ranking →

Pentium G645T Details

The Intel Pentium G645T, launched in September 2012, stands as a relic of the early Sandy Bridge era, offering modest performance by today's standards. While it shares architectural lineage with more powerful processors like the Core i3 and i5 of its time, its position in modern benchmarks reflects its age and low-tier market segment. As of March 2026, the G645T is a relic of the past, still found in budget desktop systems or embedded applications where power efficiency and cost are prioritized over raw performance. It competes directly with older dual-core processors such as the Athlon II X2 220 and the Core i3 550, which score only marginally higher, but remains significantly behind contemporary CPUs in both single- and multicore performance. Its 2.5 GHz base clock, paired with a 35 W TDP, makes it an energy-efficient option for basic computing tasks, though its lack of modern features limits its appeal in today’s market.

Built on Intel’s 32 nm process, the Pentium G645T features a dual-core design with 2.861 MiB of L3 cache, 0.244 MiB of L2 cache, and 0.061 MiB of L1 cache. It operates on the Socket 1155 platform and supports dual-channel DDR3 memory, allowing for basic memory bandwidth sufficient for everyday use. Despite lacking simultaneous multithreading and having a locked multiplier, the processor supports a wide array of instruction sets, including AVX, AVX2, SSE4.1, SSE4.2, and AES-NI, which enable it to handle a range of software workloads, including some multimedia and encryption tasks. The integrated Intel HD (Sandy Bridge) graphics provide minimal graphical performance, suitable only for basic display output and light video playback.

In benchmark testing, the Pentium G645T achieves an overall score of 4242, placing it at #1608 among 2060 processors. Its single-core score of 4192 ranks it #1584, while its multicore performance of 4316 places it #1708. These results indicate that while the G645T holds its own in single-threaded applications—competing with processors like the Pentium 3805U and Celeron J4005—it struggles in multi-threaded environments, where it is outpaced by even modest modern CPUs. The processor's performance is most comparable to older Atom and Celeron variants, which also score similarly but are often found in mobile or ultra-low-power devices. Its multicore score, in particular, shows that it is no longer competitive with mainstream desktop processors, even those from the same era.

The Pentium G645T’s most notable strength lies in its integration of advanced features such as Intel VT-x for hardware virtualization and support for modern instruction sets like AVX2, which allow it to run more demanding software than its basic dual-core design might suggest. However, its lack of SMT, limited cache, and outdated architecture prevent it from scaling effectively in modern workloads. For users seeking a budget-friendly system for web browsing, office applications, or light multimedia, the G645T remains viable, but it is ill-suited for gaming, content creation, or any task requiring high computational throughput. As of 2026, it serves as a reminder of a time when dual-core processors were sufficient for most consumer needs, but now stands as a benchmark for how far computing performance has advanced.
Frequently Compared

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Intel Pentium G645T

Main Specifications

Designer: Intel
Name: Pentium G645T
Cores: 2
Threads: 2
Base Frequency: 2500 MHz
Clock Multiplier: 25x (locked)
Core Name: Sandy Bridge
Socket: Socket 1155
Package: FC-LGA10
Target Segment: Desktop
TDP: 35 W

Cache Specifications

L1 Cache: 62.464 KiB
L2 Cache: 0.244 MiB
L3 Cache: 2.861 MiB

Memory Specifications

Supported Memory Type: DDR3

Physical Specifications

Process: 32 nm
Die Area: 131 mm²
Transistor Count: 0.00 billion
Manufacturer: Intel

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 ABM BMI1 BMI2 FMA3 AES RdRand ADX CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX EIST VT-x SSE4a SHA SMT
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