Intel Celeron B815 vs Intel Core i7-740QM
Comparative analysis of Intel Celeron B815 and Intel Core i7-740QM processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).
Differences
Reasons to consider the Intel Celeron B815
- CPU is newer: launch date 2 year(s) 1 month(s) later
- A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
- 2x more maximum memory size: 16 GB vs 8 GB
- Around 29% lower typical power consumption: 35 Watt vs 45 Watt
Launch date | 1 November 2011 vs 23 September 2009 |
Manufacturing process technology | 32 nm vs 45 nm |
Maximum memory size | 16 GB vs 8 GB |
Thermal Design Power (TDP) | 35 Watt vs 45 Watt |
Reasons to consider the Intel Core i7-740QM
- 2 more cores, run more applications at once: 4 vs 2
- 6 more threads: 8 vs 2
- Around 83% higher clock speed: 2.93 GHz vs 1.6 GHz
- 2x more L1 cache, more data can be stored in the L1 cache for quick access later
- 2x more L2 cache, more data can be stored in the L2 cache for quick access later
- 3x more L3 cache, more data can be stored in the L3 cache for quick access later
- Around 44% better performance in PassMark - Single thread mark: 1018 vs 705
- 2.5x better performance in PassMark - CPU mark: 1831 vs 731
- Around 30% better performance in Geekbench 4 - Single Core: 367 vs 283
- 2.4x better performance in Geekbench 4 - Multi-Core: 1190 vs 495
Specifications (specs) | |
Number of cores | 4 vs 2 |
Number of threads | 8 vs 2 |
Maximum frequency | 2.93 GHz vs 1.6 GHz |
L1 cache | 256 KB vs 64 KB (per core) |
L2 cache | 1024 KB vs 256 KB (per core) |
L3 cache | 6144 KB vs 2048 KB |
Benchmarks | |
PassMark - Single thread mark | 1018 vs 705 |
PassMark - CPU mark | 1831 vs 731 |
Geekbench 4 - Single Core | 367 vs 283 |
Geekbench 4 - Multi-Core | 1190 vs 495 |
Compare benchmarks
CPU 1: Intel Celeron B815
CPU 2: Intel Core i7-740QM
PassMark - Single thread mark |
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PassMark - CPU mark |
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Geekbench 4 - Single Core |
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Geekbench 4 - Multi-Core |
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Name | Intel Celeron B815 | Intel Core i7-740QM |
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PassMark - Single thread mark | 705 | 1018 |
PassMark - CPU mark | 731 | 1831 |
Geekbench 4 - Single Core | 283 | 367 |
Geekbench 4 - Multi-Core | 495 | 1190 |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 4.603 | |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 14.115 | |
CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.302 | |
CompuBench 1.5 Desktop - Video Composition (Frames/s) | 1.041 | |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 1.565 |
Compare specifications (specs)
Intel Celeron B815 | Intel Core i7-740QM | |
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Essentials |
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Architecture codename | Sandy Bridge | Clarksfield |
Launch date | 1 November 2011 | 23 September 2009 |
Place in performance rating | 2958 | 2966 |
Processor Number | B815 | i7-740QM |
Series | Legacy Intel® Celeron® Processor | Legacy Intel® Core™ Processors |
Status | Launched | Discontinued |
Vertical segment | Mobile | Mobile |
Launch price (MSRP) | $546 | |
Price now | $109.95 | |
Value for money (0-100) | 8.57 | |
Performance |
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64 bit support | ||
Base frequency | 1.60 GHz | 1.73 GHz |
Bus Speed | 5 GT/s DMI | 2.5 GT/s DMI |
Die size | 131 mm | 296 mm2 |
L1 cache | 64 KB (per core) | 256 KB |
L2 cache | 256 KB (per core) | 1024 KB |
L3 cache | 2048 KB | 6144 KB |
Manufacturing process technology | 32 nm | 45 nm |
Maximum core temperature | 100 °C | 100°C |
Maximum frequency | 1.6 GHz | 2.93 GHz |
Number of cores | 2 | 4 |
Number of threads | 2 | 8 |
Transistor count | 504 million | 774 million |
Front-side bus (FSB) | 2500 MHz | |
Memory |
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Max memory channels | 2 | 2 |
Maximum memory bandwidth | 21.3 GB/s | 21 GB/s |
Maximum memory size | 16 GB | 8 GB |
Supported memory types | DDR3 1066/1333 | DDR3 1066/1333 |
Graphics |
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Graphics base frequency | 650 MHz | |
Graphics max dynamic frequency | 1.05 GHz | |
Graphics max frequency | 1.05 GHz | |
Intel® Clear Video HD technology | ||
Intel® Flexible Display Interface (Intel® FDI) | ||
Intel® InTru™ 3D technology | ||
Intel® Quick Sync Video | ||
Processor graphics | Intel HD Graphics | |
Graphics interfaces |
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CRT | ||
DisplayPort | ||
eDP | ||
HDMI | ||
Number of displays supported | 2 | |
SDVO | ||
Wireless Display (WiDi) support | ||
Compatibility |
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Low Halogen Options Available | ||
Max number of CPUs in a configuration | 1 | 1 |
Package Size | 37.5mmx37.5mm (rPGA988B) | 37.5mm x 37.5mm |
Sockets supported | FCPGA988 | PGA988 |
Thermal Design Power (TDP) | 35 Watt | 45 Watt |
Peripherals |
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Max number of PCIe lanes | 16 | 16 |
PCI Express revision | 2.0 | 2 |
PCIe configurations | 1x16, 2x8, 1x8 2x4 | 1x16, 2x8 |
Security & Reliability |
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Anti-Theft technology | ||
Execute Disable Bit (EDB) | ||
Intel® Trusted Execution technology (TXT) | ||
Advanced Technologies |
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4G WiMAX Wireless | ||
Enhanced Intel SpeedStep® technology | ||
Flexible Display interface (FDI) | ||
Idle States | ||
Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | Intel® SSE4.2 |
Intel 64 | ||
Intel® AES New Instructions | ||
Intel® Demand Based Switching | ||
Intel® Fast Memory Access | ||
Intel® Flex Memory Access | ||
Intel® Hyper-Threading technology | ||
Intel® My WiFi technology | ||
Intel® Turbo Boost technology | ||
Intel® vPro™ Platform Eligibility | ||
Thermal Monitoring | ||
Physical Address Extensions (PAE) | 36-bit | |
Virtualization |
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Intel® Virtualization Technology (VT-x) | ||
Intel® Virtualization Technology for Directed I/O (VT-d) | ||
Intel® VT-x with Extended Page Tables (EPT) |