AMD Athlon II X4 645

Benchmarks for the AMD Athlon II X4 645 can be found below. Release dates, price and performance comparisons are also listed when available. This is made using thousands of PerformanceTest benchmark results and is updated daily.

The first graph shows the relative performance of the CPU compared to the 10 other common (single) CPUs in terms of PassMark CPU Mark.
The 2nd graph shows the value for money, in terms of the CPUMark per dollar.
The pricing history data shows the price for a single Processor. For multiple Processors, multiply the price shown by the number of CPUs.

Is the AMD Athlon II X4 645 Good for Gaming?

This is a fairly old CPU that is no longer competitive with newer CPUs. [More ...]

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AMD Athlon II X4 645

Description:

Class: Desktop

Socket: AM3

Clockspeed: 3.1 GHz

Cores: 4 Threads: 4

Typical TDP: 95 W

Cache per CPU Package:
L1 Instruction Cache: 4 x 64 KB
L1 Data Cache: 4 x 64 KB
L2 Cache: 4 x 512 KB

Other names: AMD Athlon(tm) II X4 645 Processor, AMD Athlon(tm) X4 645 Processor

CPU First Seen on Charts: Q4 2010

CPUmark/$Price: 37.13

Overall Rank:
3381st fastest in multithreading out of 5821 CPUs
3229th fastest in single threading out of 5821 CPUs
926th fastest in out of 1557 Desktop CPUs

Last Price Change: $64.04 USD (2025-06-24)

Average CPU Mark rating

Multithread Rating

2378

Single Thread Rating

1259

Samples: 634*
*Margin for error: Low

PerformanceTest V9
CPU Mark: 3,283
Thread: 1,034

CPU Test Suite Average Results for AMD Athlon II X4 645

Integer Math	7,252 MOps/Sec
Floating Point Math	5,187 MOps/Sec
Find Prime Numbers	9 Million Primes/Sec
Random String Sorting	6,652 Thousand Strings/Sec
Data Encryption	663.2 MBytes/Sec
Data Compression	53,430 KBytes/Sec
Physics	176 Frames/Sec
Extended Instructions	1,252 Million Matrices/Sec
Single Thread	1,259 MOps/Sec

From submitted results to PerformanceTest V10 as of 15th of March 2026.

CPU Mark Distribution for AMD Athlon II X4 645

Submitted Baseline Distribution Graph as of 11th of March 2026

From submitted results since PerformanceTest V10 as of 11th of March 2026.
For distribution graph only: Results are trimmed to exclude outliers by disregarding the bottom 1% and top 1% of submissions.

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Pricing History

CPU Mark Relative to Top 10 Common Desktop CPUs
As of 15th of March 2026 - Higher results represent better performance
Processor	Average CPU Mark
Intel Core i9-14900K		58,413
Intel Core i9-13900K		58,255
AMD Ryzen 9 5900X		38,934
Apple M4 10 Core		23,685
AMD Ryzen 5 5600X		21,844
Intel Core i5-12400F		19,596
Intel Core i9-9900K @ 3.60GHz		18,075
AMD Ryzen 5 3600		17,677
Apple M2 8 Core 3500 MHz		15,642
Apple M1 8 Core 3200 MHz		14,130
AMD Athlon II X4 645		2,378

CPU Value (CPU Mark / $Price )
As of 15th of March 2026 - Higher results represent better value
Processor	CPU Mark / $Price
AMD Ryzen 5 3600		192.75
AMD Ryzen 9 5900X		167.47
AMD Ryzen 5 5600X		144.67
Intel Core i9-14900K		124.55
Intel Core i9-13900K		107.88
Intel Core i9-9900K @ 3.60GHz		47.71
Intel Core i5-12400F		45.21
AMD Athlon II X4 645		37.13
Apple M1 8 Core 3200 MHz		NA
Apple M2 8 Core 3500 MHz		NA
Apple M4 10 Core		NA

Single Thread Rating
As of 15th of March 2026 - Higher results represent better performance
Processor	Average Thread Rating
Intel Core i9-14900K		4,693
Intel Core i9-13900K		4,599
Apple M4 10 Core		4,514
Apple M2 8 Core 3500 MHz		3,885
Apple M1 8 Core 3200 MHz		3,675
Intel Core i5-12400F		3,489
AMD Ryzen 9 5900X		3,467
AMD Ryzen 5 5600X		3,366
Intel Core i9-9900K @ 3.60GHz		2,913
AMD Ryzen 5 3600		2,560
AMD Athlon II X4 645		1,259

Last 5 Baselines for AMD Athlon II X4 645
Most recent listed first
Baseline	CPU Mark
BL3244468 - Jan 27 2026		2546
BL3220509 - Jan 17 2026		2467
BL3072757 - Nov 21 2025		2590
BL3071899 - Nov 21 2025		2593
BL2960102 - Oct 07 2025		2084

Additional baselines can be obtained using Windows version of PerformanceTest's Manage Baselines feature.

Popular comparisons for AMD Athlon II X4 645
As of 15th of March 2026 - Higher results represent better performance
Processor	Average CPU Mark
AMD Athlon II X4 645		2,378
AMD Athlon II X4 640 vs AMD Athlon II X4 645		2,278 (-4.2%)
Intel Core i3-2100 @ 3.10GHz vs AMD Athlon II X4 645		1,861 (-21.7%)
AMD Phenom II X4 975 vs AMD Athlon II X4 645		2,638 (+11.0%)
AMD Phenom II X4 B97 vs AMD Athlon II X4 645		2,562 (+7.8%)
AMD Phenom II X4 840T vs AMD Athlon II X4 645		2,367 (-0.4%)
Intel Core i5-650 @ 3.20GHz vs AMD Athlon II X4 645		2,258 (-5.0%)
Intel Core2 Quad Q9500 @ 2.83GHz vs AMD Athlon II X4 645		2,247 (-5.5%)
AMD A10-5800K APU vs AMD Athlon II X4 645		2,968 (+24.8%)
AMD A8-5600K APU vs AMD Athlon II X4 645		2,857 (+20.1%)
AMD Phenom II X4 965 vs AMD Athlon II X4 645		2,664 (+12.0%)
AMD A8-5500 APU vs AMD Athlon II X4 645		2,618 (+10.1%)
AMD Phenom II X4 955 vs AMD Athlon II X4 645		2,554 (+7.4%)

Is the AMD Athlon II X4 645 Good for Gaming?
As of 15th of March 2026 - Higher results represent better performance
Processor	Relative Gaming Score
AMD Ryzen 9 9900X3D		12,427
AMD Ryzen 7 9800X3D		12,123
AMD Ryzen 9 9950X3D		11,266
Intel Core Ultra 7 270K Plus		10,611
AMD Ryzen 5 7600X3D		10,523
AMD Ryzen 9 7900X3D		10,389
Intel Core Ultra 9 285K		10,373
Intel Core Ultra 9 290K Plus		10,291
AMD Ryzen 7 7800X3D		10,257
AMD Ryzen 5 7500X3D		10,163
AMD Ryzen 9 9955HX3D		9,792
Intel Core Ultra 7 265K		9,443
AMD Athlon II X4 645		249

CPU Benchmarks

CPU Benchmarks

AMD Athlon II X4 645

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CPU Test Suite Average Results for AMD Athlon II X4 645

CPU Mark Distribution for AMD Athlon II X4 645

Pricing History