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| 8.8 Out of 10 |  | by Anand-Lal-Shimpi (Jul, 2013) by Anand-Lal-Shimpi (Jul, 2013) |
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CPUBoss Review Our evaluation of the Intel Core i7 4650U among laptop CPUs (up to 15W)
Performance | |
Benchmark performance using all cores | |
| PCMark 8 Home 3.0 Accelerated, PassMark and 1 more | |
Single-core Performance | |
Individual core benchmark performance | |
| PassMark (Single Core), Geekbench 3 Single Core and 1 more | |
Integrated Graphics | |
Integrated GPU performance for graphics | |
| Sky Diver and Cloud Gate | |
Integrated Graphics (OpenCL) | |
Integrated GPU performance for parallel computing | |
| CompuBench 1.5 Bitcoin mining and 4 more | |
Performance per Watt | |
How efficiently does the processor use electricity? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
Value | |
Are you paying a premium for performance? | |
| Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more | |
| 8.8 | CPUBoss Score |
Combination of all six facets | |
Benchmarks Real world tests of the Intel Core i7 4650U
CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench
CompuBench 1.5 (Face detection)
CompuBench 1.5 (T-Rex) Data courtesy CompuBench
GeekBench 3 (Multi-core) Data courtesy Primate Labs
GeekBench 3 (Single core) Data courtesy Primate Labs
GeekBench 3 (AES single core) Data courtesy Primate Labs
PassMark Data courtesy Passmark
PassMark (Single Core)
In The News From around the web
| 4 Jul |
|
I’ve found that OS X tends to fire up the dGPU anyway while running this workload so I saw no reason to run a separate set of numbers for processor and discrete graphics.
Internal CPU Proximity Thermistor Intel Core i5-4250U 47.1 °C 41.4 °C 41.4 °C 92.2 °C Intel Core i7-4650U 47.7 °C 42.1 °C 46.6 °C 96.7 °C Average temperatures aren't substantially higher on the i7, however you will notice that there's a column for max observed temperature on the bottom of the chassis where the upgraded MacBook Air does show a considerably higher temperature.
Specifications Full list of technical specs
summary
| Clock speed | 1.7 GHz |
|---|---|
| Turbo clock speed | 3.3 GHz |
| Cores | Dual core |
| Is unlocked | Yes |
features
| Has a NX bit | Yes |
|---|---|
| Supports trusted computing | Yes |
| Has virtualization support | Yes |
| Instruction set extensions |
|
| Supports dynamic frequency scaling | Yes |
power consumption
| TDP | 15W |
|---|---|
| Annual home energy cost | 3.61 $/year |
| Performance per watt | 68.89 pt/W |
| Typical power consumption | 12.19W |
memory controller
| Memory controller | Built-in |
|---|---|
| Memory type |
|
| Channels | Dual Channel |
| Supports ECC | No |
| Maximum bandwidth | 25,600 MB/s |
| Maximum memory size | 16,384 MB |
details
| Architecture | x86-64 |
|---|---|
| Threads | 4 threads |
| L2 cache | 0.5 MB |
| L2 cache per core | 0.25 MB/core |
| L3 cache | 4 MB |
| L3 cache per core | 2 MB/core |
| Manufacture process | 22 nm |
| Transistor count | 382,000,000 |
| Max CPUs | 1 |
| Clock multiplier | 24 |
| Voltage range | 0.65 - 1.4V |
| Operating temperature | Unknown - 72.6°C |
overclocking
| Overclocked clock speed | 3.12 GHz |
|---|---|
| Overclocked clock speed (Water) | 1.7 GHz |
| Overclocked clock speed (Air) | 3.12 GHz |
integrated graphics
| GPU | GPU |
|---|---|
| Label | Intel® HD Graphics 5000 |
| Number of displays supported | 3 |
| GPU clock speed | 200 MHz |
| Turbo clock speed | 1,100 MHz |
bus
| Architecture | DMI 2.0 |
|---|---|
| Number of links | 1 |
| Data rate | 400 MB/s |
| Transfer rate | 5,000 MT/s |
| Clock speed | 66 MHz |
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