Performance
Core i7-840QM187% better
4,68613% of 36,991
Celeron N2940
1,6354% of 36,991
The Core i7-840QM has 187% better performance than the Celeron N2940 for the 3DMark 11 Performance Physics benchmark.
Performance per dollar
Core i7-840QM
8.257% of 121.53
Celeron N2940
No data available
The Core i7-840QM has 7% of the performance per dollar compared to the leader for the 3DMark 11 Performance Physics benchmark: Intel Core i5-13400F.
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Summary
#
About the Intel Core i7-840QM CPU
The Intel Core i7-840QM is an end-of-life 4-core (8-thread) processor built for the mobile CPU market. It launched in Q2 2010 with a suggested retail price of $568. It is part of Intel's Core i7 lineup, which is based on the Clarksfield microarchitecture. The i7-840QM is compatible with Intel Socket G1 motherboards and is fabricated on Intel's 45 nm manufacturing process.
Memory and Cache
The Core i7-840QM supports DDR3 memory and features a dual-channel memory controller, allowing it to utilize 2 memory modules simultaneously. In terms of cache, the Core i7-840QM has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 64 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 256 KB, is larger but slower than the L1. Its L3 cache, a shared resource among the CPU's cores, has a capacity of 8 MB.
Cores and Clock Speeds
The Core i7-840QM features 4 total cores which can process 8 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 1867.0 MHz, and it can boost up to 3.2 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is locked, making it incapable of overclocking for pushing performance further.
Integrated Graphics
The Core i7-840QM does not include an integrated graphics solution. A dedicated graphics card will be required if you require a monitor with your computer.
Benchmark Performance & Value
The Core i7-840QM has the 413th best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 12.67% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D. Its 4,686 score and $568 launch price (MSRP) gives it a performance per dollar of 8.25. This is the 205th best in value for the 3DMark 11 Perf. Physics benchmark.
About the Intel Celeron N2940 CPU
The Intel Celeron N2940 is a 4-core (4-thread) processor built for the mobile CPU market. It launched in Q2 2014. It is part of Intel's Celeron lineup, which is based on the Bay Trail microarchitecture. The N2940 is compatible with Intel BGA 1170 motherboards and is fabricated on Intel's 22 nm manufacturing process. It features the HD Graphics integrated graphics solution.
Memory and Cache
The Celeron N2940 supports DDR3 memory. In terms of cache, the Celeron N2940 has multiple levels of cache. Its L1 cache, which is the smallest and fastest, is 56 KB in size, providing rapid access to crucial instructions. Its L2 cache, at 512 KB, is larger but slower than the L1.
Cores and Clock Speeds
The Celeron N2940 features 4 total cores which can process 4 threads simultaneously. The multi-threading capability allows the CPU to execute multiple computational tasks in parallel. The base clock speed of the CPU is 1830.0 MHz, and it can boost up to 2.3 GHz under heavy workloads. Higher clock speeds result in better performance for the same microarchitecture. The multiplier is locked, making it incapable of overclocking for pushing performance further.
Integrated Graphics
The Celeron N2940 includes an integrated graphics solution called HD Graphics. This graphics processor is directly integrated into the CPU and is not as powerful as a dedicated graphics card. While integrated graphics can handle basic tasks like web browsing and office applications, it is not suitable for more demanding activities such as gaming or video editing, where a dedicated graphics card offers superior performance.
Benchmark Performance
The Celeron N2940 has the 652nd best 3DMark 11 Performance Physics score among the 721 benchmarked CPUs in our database. It achieves 4.42% of the performance of the best benchmarked CPU, the AMD Ryzen 9 7950X3D.
General Info
General overview of the CPU, including details like its manufacturer, release date, launch price, and current production status.
| Info | Core i7-840QM | Celeron N2940 |
|---|---|---|
| Manufacturer | Intel | Intel |
| Series | Core i7 | Celeron |
| Market Segment | Mobile | Mobile |
| Release Date | Q2 2010 | Q2 2014 |
| Launch Price (MSRP) | $568 | -- |
| Production Status | End-of-life | Active |
| Shop | Check Price | Check Price |
Benchmark Performance
#
Performance
Core i7-840QM187% better
4,68613% of 36,991
Celeron N2940
1,6354% of 36,991
The Core i7-840QM has 187% better performance than the Celeron N2940 for the 3DMark 11 Performance Physics benchmark.
The Core i7-840QM is ranked 413th with a score of 4,686, and the Celeron N2940 is ranked 652nd with a score of 1,635.
Performance per dollar
Core i7-840QM
8.257% of 121.53
Celeron N2940
No data available
The Core i7-840QM has 16% of the performance per dollar compared to the leader for the 3DMark 11 Performance Physics benchmark: AMD Ryzen 9 7950X3D.
Core i7-840QM's 8.25 performance per dollar ranks it 205th among the other benchmarked CPUs in our database.
Relative Performance
The average score in the benchmark test can be compared to similar CPUs to assess relative performance. Generally, powerful CPUs tend to have higher scores.
Choose Baseline CPU:Core i7-840QM or
| CPU | Benchmark Performance | |
|---|---|---|
| Core i5-7300HQ | 6,042 | +29% |
| Core i3-N300 | 4,983 | +6% |
| Core i7-840QM | 4,686 | |
| Core i3-7100H | 4,559 | -3% |
| Core i7-740QM | 4,450 | -5% |
| A8-4555M | 1,654 | -65% |
| Celeron N4020 | 1,650 | -65% |
| A4-5000 | 1,635 | -65% |
| Celeron N2940 | 1,635 | -65% |
| A9-9420 | 1,632 | -65% |
Relative Value For Money
The average performance per dollar in the benchmark test can be compared to similar CPUs to assess relative value. A higher score implies a better value for your money.
Choose Baseline CPU:Core i7-840QM orCeleron N2940
| CPU | Performance Per Dollar | |
|---|---|---|
| Core i7-5600U | 9.65 | +17% |
| Core m3-6Y30 | 9.62 | +17% |
| Core m5-6Y57 | 9.54 | +16% |
| Core m5-6Y54 | 9 | +9% |
| Core i7-5650U | 8.92 | +8% |
| Core i7-840QM | 8.25 | |
| Core i7-5550U | 8.15 | -1% |
| Core i7-2960XM | 7.39 | -10% |
| Core i7-820QM | 7.33 | -11% |
| Core i7-2920XM | 7.22 | -12% |
Benchmark Scores
This table showcases the average performance scores achieved by both CPUs across industry-standard benchmark tests. These scores provide a valuable insight into overall performance. Powerful CPUs tend to have higher scores.
- Popular
| Benchmark | Core i7-840QM | Celeron N2940 |
|---|---|---|
| 3DMark 11 Performance Physics | 4,686 (+186.61%) | 1,635 |
| Cinebench R15 Multi-Core | -- | 110.5 |
| Cinebench R15 Single-Core | -- | 35.5 |
| Geekbench 6.2 Multi-Core | 1,006 (+101.2%) | 500 |
| Geekbench 6.2 Single-Core | 373 (+123.35%) | 167 |
| CPU Mark Multi-Thread | 1,945 (+87.56%) | 1,037 |
| CPU Mark Single-Thread | 1,132 (+87.11%) | 605 |
Benchmarks Source: Notebookcheck
Technical Specs
#
Manufacturing Details
Information about the CPU's manufacturing like its foundry, process size, and transistor count.
| Spec | Core i7-840QM | Celeron N2940 |
|---|---|---|
| Manufacturer | Intel | Intel |
| Foundry | Intel | Intel |
| Process Size | 45 nm | 22 nm |
| Transistors | 774 million | -- |
Architecture
CPU architecture specs like its memory channels, memory support, and microarchitecture. Newer CPU architectures can minimize bottlenecks and improve execution efficiency using more advanced techniques.
| Spec | Core i7-840QM | Celeron N2940 |
|---|---|---|
| Series | Core i7 | Celeron |
| Microarchitecture | Clarksfield | Bay Trail |
| Codename | Clarksfield | Bay Trail-M |
| Memory Support | DDR3 | DDR3 |
| Memory Channels | Dual-channel | -- |
| ECC Memory | No | No |
Cores & Clock Speeds
Processing power information like its cores and clock speed. These specs impact how fast they can handle instructions and tasks. These have a strong impact on the CPU's performance.
| Spec | Core i7-840QM | Celeron N2940 |
|---|---|---|
| Cores | 4 | 4 |
| Threads | 8 | 4 |
| Clock Speed | 1867.0 MHz | 1830.0 MHz |
| Turbo Clock | 3.2 GHz | 2.3 GHz |
| Base Clock | 133 MHz | -- |
| Multiplier | 14.0x | -- |
| Multiplier Unlocked | No | No |
Cache
CPU cache specs like its L1 & L2 cache. These provide the CPU with a small, but super-fast memory access. A larger cache can improve a CPU's performance.
| Spec | Core i7-840QM | Celeron N2940 |
|---|---|---|
| L1 Cache | 64 KB | 56 KB |
| L2 Cache | 256 KB | 512 KB |
| L3 Cache | 8 MB | -- |
Compatibility & Power Consumption
Compatibility and power consumption information like its socket type, thermal design power, power limits. These can help verify the CPU's compatibility with other PC components.
| Spec | Core i7-840QM | Celeron N2940 |
|---|---|---|
| Socket | Intel Socket G1 | Intel BGA 1170 |
| PCI Express | PCIe 2.0 x16 | -- |
| Thermal Design Power (TDP) | 45 W | 7 W |
| TJ Max | 100 °C | 105 °C |
Graphics, Features, & Extensions
Additional CPU features like its bundled coolers, integrated graphics, and extensions/technologies.
| Spec | Core i7-840QM | Celeron N2940 |
|---|---|---|
| Integrated Graphics | -- | HD Graphics |
| Extensions / Technologies | MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EIST, Intel 64, HTT, VT-x, VT-d, NX bit, TXT, TBT 1.0 | MMX, SSE, SSE2, SSE3, SSSE3, EIST, XD bit, BPT, NX |
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* Performance rating, performance per dollar, and rankings are based on the 3DMark 11 Performance Physics benchmark and MSRP.