Core i7-2840QM: specs and benchmarks
Aggregate performance score
Core i7-2840QM provides poor benchmark performance at 2.42% of a leader's which is a 96-core EPYC 9655P.
Summary
Intel started Core i7-2840QM sales 4 September 2011. This is a Sandy Bridge architecture notebook processor primarily aimed at office systems. It has 4 cores and 8 threads, and is based on 32 nm manufacturing technology, with a maximum frequency of 2400 MHz and a locked multiplier.
Compatibility-wise, this is Socket G2 processor with a TDP of 45 Watt.
Primary details
Core i7-2840QM processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | 1764 | |
| Place by popularity | not in top-100 | |
| Market segment | Laptop | |
| Series | Intel Core i7 | |
| Power efficiency | 5.09 | of 100.00 (Core Ultra 7 164U) |
| Architecture codename | Sandy Bridge (2011−2013) | |
| Release date | 4 September 2011 (13 years ago) |
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 4 (Quad-Core) | |
| Threads | 8 | |
| Boost clock speed | 2.4 GHz | of 6.2 GHz (Core i9-14900KS) |
| Bus type | DMI 2.0 | |
| Bus rate | 4 × 5 GT/s | |
| Multiplier | 24 | of 42 (Core i7-7700K) |
| L1 cache | 256 KB | of 80 KB (EPYC 9965) |
| L2 cache | 1 MB | of 2 MB (Xeon 6980P) |
| L3 cache | 8 MB | of 1152 MB (EPYC 9684X) |
| Chip lithography | 32 nm | of 3 nm (Apple M3 Max 16-Core) |
| Die size | 216 mm2 | |
| Number of transistors | 1160 Million | of 135,240 million (EPYC 9684X) |
| 64 bit support | + | |
| Windows 11 compatibility | - |
Compatibility
Information on Core i7-2840QM compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 (Uniprocessor) | of 8 (Opteron 842) |
| Socket | Socket G2 | |
| Power consumption (TDP) | 45 Watt | of 3100 ‑ 4500 (Ryzen 7 7435H) |
Technologies and extensions
Technological capabilities and additional instructions supported by Core i7-2840QM. You'll probably need this information if you require some particular technology.
| AES-NI | + | |
| FMA | + | |
| AVX | + | |
| vPro | + | |
| Enhanced SpeedStep (EIST) | + |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| VT-d | + | |
| VT-x | + |
Memory specs
Types, maximum amount and channel number of RAM supported by Core i7-2840QM's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Maximum memory size | 32 GB | of 6 TiB (EPYC 9124) |
| Maximum memory bandwidth | 25.598 GB/s | of 460.8 GB/s (EPYC 9124) |
Graphics specifications
General parameters of a GPU integrated into Core i7-2840QM.
| Integrated graphics card | Intel HD Graphics 3000 |
Benchmark performance
Single-core and multi-core benchmark results of Core i7-2840QM. Overall benchmark performance is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Send your test results of Core i7-2840QM.
AMD equivalent
According to our data, the closest AMD alternative to Core i7-2840QM is Athlon 300U, which is nearly equal in speed and higher by 5 positions in our ranking.
Here are some closest AMD rivals to Core i7-2840QM:
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
Recommended GPUs
People consider these graphics cards to be good for Core i7-2840QM, according to our PC configuration statistics.
These are the fastest graphics cards for Core i7-2840QM in our user configuration statistics. There is a total of 21 configurations using Core i7-2840QM in our database.
