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Intel i7-4578U vs AMD RX-427BB

The AMD RX-427BB is newer than Intel Core i7-4578U @ 3.00GHz, while Intel Core i7-4578U @ 3.00GHz is around 10% faster in multi-threaded (CPU Mark) testing, it is around 32% faster in single-thread testing. However, AMD RX-427BB uses around 22% more power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 171 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.

×Intel Core i7-4578U @ 3.00GHz×AMD RX-427BB+ ADD
Price Search Online Search Online
Socket TypeFCBGA1168FP3
CPU ClassLaptopLaptop
Clockspeed3.0 GHz2.7 GHz
Turbo SpeedUp to 3.5 GHzUp to 3.6 GHz
# of Physical Cores2 (Threads: 4)4 (in 4 physical modules)
CacheL1: 128KB, L2: 0.5MB, L3: 4MBL1: 448KB, L2: 8.0MB,
TDP28W35W
Yearly Running Cost$5.11$6.39
Otherwith AMD Radeon R7 Graphics
First Seen on ChartQ3 2014Q1 2015
# of Samples13437
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)1931(0.0%)1306(-32.4%)
CPU Mark(% diff. to max in group)3106(0.0%)2789(-10.2%)

CPU Mark Rating
As of 1st of December 2024 - Higher results represent better performance
Intel Core i7-4578U @ 3.00GHz
3,106
AMD RX-427BB
2,789
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 1st of December 2024 - Higher results represent better performance
Intel Core i7-4578U @ 3.00GHz
1,931
AMD RX-427BB
1,306
PassMark Software © 2008-2024
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
1Average user usage is typically low and can vary from task to task. An estimate load 25% is nominal.
2Typical power costs vary around the world. Check your last power bill for details. Values of $0.15 to $0.45 per kWh are typical.
Intel Core i7-4578U @ 3.00GHz AMD RX-427BB
Max TDP28W35W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.