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 313–336 of 1,353

313CPUIntel Xeon L7455 @ 2.13GHzIntel · ServerCores / threads6 / 6Clock—TDP65 WCPU Mark2,494314CPUAMD Athlon II X4 655AMD · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark2,487315CPUAMD Opteron 8439 SEAMD · ServerCores / threads6 / 6Clock—TDP105 WCPU Mark2,479316CPUAMD Phenom II X4 840AMD · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark2,467317CPUIntel Xeon X3360 @ 2.83GHzIntel · ServerCores / threads4 / 4Clock—TDP95 WCPU Mark2,460318CPUIntel Celeron 7305EIntel · Mobile/EmbeddedCores / threads5 / —Clock—TDP15 WCPU Mark2,451319CPUAMD Athlon II X4 651 Quad-CoreAMD · DesktopCores / threads4 / 4Clock—TDP100 WCPU Mark2,447320CPUIntel Core2 Extreme X9650 @ 3.00GHzIntel · DesktopCores / threads4 / 4Clock—TDP130 WCPU Mark2,444321CPUIntel Xeon E5606 @ 2.13GHzIntel · ServerCores / threads4 / 4Clock—TDP80 WCPU Mark2,443322CPUAMD Phenom II X4 B95AMD · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark2,436323CPUAMD A8-3850 APUAMD · DesktopCores / threads4 / 4Clock—TDP100 WCPU Mark2,432324CPUIntel Xeon X5450 @ 3.00GHzIntel · ServerCores / threads4 / 4Clock—TDP120 WCPU Mark2,426325CPUAMD Phenom II X4 945AMD · DesktopCores / threads4 / 4Clock—TDP125 WCPU Mark2,420326CPUIntel Xeon L3360 @ 2.83GHzIntel · ServerCores / threads4 / 4Clock—TDP65 WCPU Mark2,412327CPUAMD A8-3870K APUAMD · DesktopCores / threads4 / 4Clock—TDP100 WCPU Mark2,406328CPUAMD Phenom II X4 940AMD · DesktopCores / threads4 / 4Clock—TDP125 WCPU Mark2,394329CPUIntel Xeon X3363 @ 2.83GHzIntel · ServerCores / threads4 / 4Clock—TDP80 WCPU Mark2,392330CPUAMD Athlon II X4 645AMD · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark2,390331CPUIntel Core2 Quad Q9550 @ 2.83GHzIntel · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark2,385332CPUAMD Opteron 4170 HEAMD · ServerCores / threads6 / 6Clock—TDP65 WCPU Mark2,382333CPUIntel Core i5-661 @ 3.33GHzIntel · DesktopCores / threads2 / 4Clock3.6 GHzTDP87 WCPU Mark2,380334CPUAMD Phenom II X4 977AMD · DesktopCores / threads4 / 4Clock—TDP95 WCPU Mark2,377335CPUIntel Xeon E5-2403 @ 1.80GHzIntel · ServerCores / threads4 / 4Clock—TDP80 WCPU Mark2,367336CPUIntel Xeon E5440 @ 2.83GHzIntel · ServerCores / threads4 / 4Clock—TDP80 WCPU Mark2,359