EFFICIENCY

Processors Low efficiency

Explore 1353 processors indexed under Low efficiency and scan their key platform, core, power and benchmark data in one place. This overview maps the available range before the performance ranking and decision guidance below.

1,353 processorslow-efficiency

Selection guide

How to choose from Low efficiency

This page groups 1353 processors classified under Low efficiency. Low efficiency classifies processors by the available relationship between performance and power. Use the catalog to shortlist candidates, then compare real performance and workload-relevant specifications rather than relying on the category label alone.

3 brands 1–72 cores 2,063 average CPU Mark 3.00–350.00 W TDP

What this category shows

Low efficiency classifies processors by the available relationship between performance and power.

What to compare

Compare CPU Mark per watt with absolute performance and real platform power limits.

Check before choosing

The estimate uses TDP when standardized wall-power measurements are unavailable.

By CPU Mark

Performance ranking

The table ranks the strongest Low efficiency processors by the CPU Mark available in CPULoom. It is useful for broad performance comparisons, while the single-thread result adds context for less-parallel work.

  1. 01 Intel Core 7 253PQE 10C / 20T 37,760CPU Mark
  2. 02 Intel Core i5-12600HE 12C / —T 20,256CPU Mark
  3. 03 Intel Core i5-12500E 6C / 12T 19,603CPU Mark
  4. 04 Intel Xeon Phi 7290 @ 1.50GHz 72C / 288T 17,839CPU Mark
  5. 05 AMD Ryzen Embedded V2748 8C / 16T 16,945CPU Mark

FAQ

Frequently asked questions

What does the Low efficiency category mean?

This efficiency category groups processors associated with Low efficiency. Low efficiency classifies processors by the available relationship between performance and power.

What is the fastest processor in Low efficiency?

The performance ranking highlights the highest available CPU Mark in this category. The best practical choice can differ by application, single-thread speed, power, cooling and price.

How should I compare Low efficiency processors?

Compare CPU Mark per watt with absolute performance and real platform power limits. Open each processor page for full specifications or add close candidates to the comparison tool.

Is this category enough to make a buying decision?

No. The estimate uses TDP when standardized wall-power measurements are unavailable. Also verify motherboard and memory compatibility, cooling requirements and benchmarks relevant to your software.

This summary is calculated from processor records linked to the category. Performance results are broad comparison indicators and can vary with system, power and cooling. Latest data update:

Processor catalog

Low efficiency

Showing 385–408 of 1,353

385CPUAMD Opteron 3250 HEAMD · ServerCores / threads4 / —Clock3.5 GHzTDP45 WCPU Mark2,061386CPUAMD Opteron 4162 EEAMD · ServerCores / threads6 / 6Clock—TDP35 WCPU Mark2,058387CPUIntel Xeon X3230 @ 2.66GHzIntel · ServerCores / threads4 / 4Clock—TDP95 WCPU Mark2,052388CPUAMD Phenom II X4 810AMD · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark2,049389CPUIntel Xeon E5420 @ 2.50GHzIntel · ServerCores / threads4 / 4Clock—TDP80 WCPU Mark2,044390CPUIntel Xeon X5355 @ 2.66GHzIntel · ServerCores / threads4 / 4Clock—TDP120 WCPU Mark2,039391CPUIntel Xeon E5410 @ 2.33GHzIntel · ServerCores / threads4 / 4Clock—TDP80 WCPU Mark2,032392CPUIntel Core i7-920XM @ 2.00GHzIntel · LaptopCores / threads4 / 8Clock3.2 GHzTDP55 WCPU Mark2,032393CPUIntel Xeon X3323 @ 2.50GHzIntel · ServerCores / threads4 / 4Clock—TDP80 WCPU Mark2,030394CPUIntel Xeon E7- 2830 @ 2.13GHzIntel · ServerCores / threads4 / 4Clock2.4 GHzTDP105 WCPU Mark2,027395CPUAMD Opteron 2384AMD · ServerCores / threads4 / 4Clock—TDP75 WCPU Mark2,024396CPUIntel Celeron 7305LIntel · Mobile/EmbeddedCores / threads5 / —Clock—TDP15 WCPU Mark2,023397CPUIntel Celeron 6305E @ 1.80GHzIntel · Mobile/EmbeddedCores / threads2 / 2Clock—TDP15 WCPU Mark2,021398CPUIntel Core2 Quad Q9300 @ 2.50GHzIntel · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark2,015399CPUIntel Celeron N4505 @ 2.00GHzIntel · Mobile/EmbeddedCores / threads2 / 2Clock2.9 GHzTDP10 WCPU Mark2,013400CPUAMD Athlon II X4 620AMD · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark2,008401CPUAMD Phenom II X4 805AMD · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark2,001402CPUAMD Opteron 2427AMD · ServerCores / threads6 / 6Clock—TDP75 WCPU Mark1,995403CPUAMD Athlon II X3 460AMD · DesktopCores / threads3 / 3Clock—TDP95 WCPU Mark1,984404CPUIntel Xeon X3220 @ 2.40GHzIntel · ServerCores / threads4 / 4Clock—TDP105 WCPU Mark1,973405CPUIntel Xeon E5506 @ 2.13GHzIntel · ServerCores / threads4 / 4Clock—TDP80 WCPU Mark1,961406CPUAMD Phenom 9850B Quad-CoreAMD · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark1,946407CPUIntel Xeon E5507 @ 2.27GHzIntel · ServerCores / threads4 / 4Clock—TDP80 WCPU Mark1,943408CPUAMD Athlon II X3 455AMD · DesktopCores / threads3 / 3Clock—TDP95 WCPU Mark1,939