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AMD Athlon II X4 638 Quad-Core

Benchmarks for the AMD Athlon II X4 638 Quad-Core 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 638 Quad-Core Good for Gaming?

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

AMD Athlon II X4 638 Quad-Core

Description:

Class: Desktop

Socket: FM1

Clockspeed: 2.7 GHz

Cores: 4 Threads: 4

Typical TDP: 65 W

Cache per CPU Package:
L1 Instruction Cache: 4 x 64 KB
L1 Data Cache: 4 x 64 KB
L2 Cache: 4 x 1024 KB

Other names: AMD Athlon(tm) II X4 638 Quad-Core Processor

CPU First Seen on Charts: Q2 2015

CPUmark/$Price: 35.96

Overall Rank:
3461st fastest in multithreading out of 5822 CPUs
3439th fastest in single threading out of 5822 CPUs
954th fastest in out of 1557 Desktop CPUs

Last Price Change: $62.85 USD (2021-06-01)

Average CPU Mark rating
Multithread Rating
2260
Single Thread Rating
1158

Samples: 7*
*Margin for error: Medium



PerformanceTest V9
CPU Mark: 3,079
Thread: 941

CPU Test Suite Average Results for AMD Athlon II X4 638 Quad-Core

Integer Math6,666 MOps/Sec
Floating Point Math4,991 MOps/Sec
Find Prime Numbers10 Million Primes/Sec
Random String Sorting5,979 Thousand Strings/Sec
Data Encryption640.7 MBytes/Sec
Data Compression50,410 KBytes/Sec
Physics192 Frames/Sec
Extended Instructions1,236 Million Matrices/Sec
Single Thread1,158 MOps/Sec
From submitted results to PerformanceTest V10 as of 16th of March 2026.

CPU Mark Distribution for AMD Athlon II X4 638 Quad-Core

Submitted Baseline Distribution Graph as of 13th of March 2026


Not Enough Data from Current Version of PerformanceTest to Create Distribution Graph.

From submitted results since PerformanceTest V10 as of 13th of March 2026.

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Pricing History


CPU Mark Relative to Top 10 Common Desktop CPUs
As of 16th of March 2026 - Higher results represent better performance
Processor Average CPU Mark
Intel Core i9-14900K
58,410
Intel Core i9-13900K
58,252
AMD Ryzen 9 5900X
38,935
Apple M4 10 Core
23,685
AMD Ryzen 5 5600X
21,844
Intel Core i5-12400F
19,595
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 638 Quad-Core
2,260
CPU Value (CPU Mark / $Price )
As of 16th of March 2026 - Higher results represent better value
Processor CPU Mark / $Price
AMD Ryzen 9 5900X
161.17
AMD Ryzen 5 5600X
144.67
Intel Core i9-14900K
124.55
AMD Ryzen 5 3600
117.85
Intel Core i9-13900K
107.88
Intel Core i9-9900K @ 3.60GHz
60.54
Intel Core i5-12400F
45.20
AMD Athlon II X4 638 Quad-Core
35.96
Apple M1 8 Core 3200 MHz
NA
Apple M2 8 Core 3500 MHz
NA
Apple M4 10 Core
NA
Single Thread Rating
As of 16th 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 638 Quad-Core
1,158
Last 4 Baselines for AMD Athlon II X4 638 Quad-Core
Most recent listed first
Baseline CPU Mark
BL2310178 - Dec 30 2024
2301
BL1599332 - Jul 21 2022
2263
BL1595592 - Jul 14 2022
2370
BL1525317 - Mar 02 2022
2340
Additional baselines can be obtained using Windows version of PerformanceTest's Manage Baselines feature.
Popular comparisons for AMD Athlon II X4 638 Quad-Core
As of 16th of March 2026 - Higher results represent better performance
Processor Average CPU Mark
AMD Athlon II X4 638 Quad-Core
2,260
AMD Phenom II X4 965 vs AMD Athlon II X4 638 Quad-Core
2,664 (+17.9%)
AMD A8-5500 APU vs AMD Athlon II X4 638 Quad-Core
2,618 (+15.8%)
Intel Pentium G4400 @ 3.30GHz vs AMD Athlon II X4 638 Quad-Core
2,564 (+13.4%)
AMD Phenom II X4 955 vs AMD Athlon II X4 638 Quad-Core
2,555 (+13.0%)
Intel Core i5-750 @ 2.67GHz vs AMD Athlon II X4 638 Quad-Core
2,548 (+12.7%)
AMD A8-6500B APU vs AMD Athlon II X4 638 Quad-Core
2,306 (+2.1%)
AMD Athlon II X4 640 vs AMD Athlon II X4 638 Quad-Core
2,278 (+0.8%)
Intel Core i5-650 @ 3.20GHz vs AMD Athlon II X4 638 Quad-Core
2,257 (-0.1%)
Intel Pentium G3258 @ 3.20GHz vs AMD Athlon II X4 638 Quad-Core
2,063 (-8.7%)
Intel Core i3-2100 @ 3.10GHz vs AMD Athlon II X4 638 Quad-Core
1,861 (-17.6%)
Intel Core2 Quad Q8200 @ 2.33GHz vs AMD Athlon II X4 638 Quad-Core
1,815 (-19.7%)
Intel Pentium G3260T @ 2.90GHz vs AMD Athlon II X4 638 Quad-Core
1,876 (-17.0%)

Is the AMD Athlon II X4 638 Quad-Core Good for Gaming?
As of 16th of March 2026 - Higher results represent better performance
Processor Relative Gaming Score
AMD Ryzen 9 9900X3D
12,426
AMD Ryzen 7 9800X3D
12,122
AMD Ryzen 9 9950X3D
11,266
Intel Core Ultra 7 270K Plus
10,611
AMD Ryzen 5 7600X3D
10,523
AMD Ryzen 9 7900X3D
10,388
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 638 Quad-Core
249