Intel Core i7-940 vs Intel Atom C3338R
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CPU comparison with benchmarks
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| Intel Core i7-940 | Intel Atom C3338R | |
CPU comparisonIntel Core i7-940 or Intel Atom C3338R - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.
The Intel Core i7-940 has 4 cores with 8 threads and clocks with a maximum frequency of 3.20 GHz. Up to 24 GB of memory is supported in 3 memory channels. The Intel Core i7-940 was released in Q4/2008. The Intel Atom C3338R has 2 cores with 2 threads and clocks with a maximum frequency of 2.20 GHz. The CPU supports up to 128 GB of memory in 1 memory channels. The Intel Atom C3338R was released in Q2/2020. |
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| Intel Core i7 (298) | Family | Intel Atom (108) |
| Intel Core i7 900 (7) | CPU group | Intel Atom C3000 (20) |
| 1 | Generation | 5 |
| Bloomfield | Architecture | Denverton |
| Desktop / Server | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i7-940 has 4 CPU cores and can calculate 8 threads in parallel. The clock frequency of the Intel Core i7-940 is 2.93 GHz (3.20 GHz) while the Intel Atom C3338R has 2 CPU cores and 2 threads can calculate simultaneously. The clock frequency of the Intel Atom C3338R is at 1.80 GHz (2.20 GHz). |
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| Intel Core i7-940 | Characteristic | Intel Atom C3338R |
| 4 | Cores | 2 |
| 8 | Threads | 2 |
| normal | Core architecture | normal |
| Yes | Hyperthreading | No |
| No | Overclocking ? | No |
| 2.93 GHz | Frequency | 1.80 GHz |
| 3.20 GHz | Turbo Frequency (1 Core) | 2.20 GHz |
| -- | Turbo Frequency (All Cores) | 2.00 GHz |
Memory & PCIeThe Intel Core i7-940 can use up to 24 GB of memory in 3 memory channels. The maximum memory bandwidth is 25.6 GB/s. The Intel Atom C3338R supports up to 128 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 29.9 GB/s. |
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| Intel Core i7-940 | Characteristic | Intel Atom C3338R |
| DDR3-1066 | Memory | DDR4-1866 |
| 24 GB | Max. Memory | 128 GB |
| 3 | Memory channels | 1 (Single Channel) |
| 25.6 GB/s | Max. Bandwidth | 29.9 GB/s |
| No | ECC | Yes |
| 1.00 MB | L2 Cache | 4.00 MB |
| 8.00 MB | L3 Cache | -- |
| -- | PCIe version | 3.0 |
| -- | PCIe lanes | 10 |
| -- | PCIe Bandwidth | 9.9 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i7-940 is 130 W, while the Intel Atom C3338R has a TDP of 10.5 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| Intel Core i7-940 | Characteristic | Intel Atom C3338R |
| 130 W | TDP (PL1 / PBP) | 10.5 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | 100 °C |
Technical detailsThe Intel Core i7-940 is manufactured in 45 nm and has 9.00 MB cache. The Intel Atom C3338R is manufactured in 14 nm and has a 4.00 MB cache. |
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| Intel Core i7-940 | Characteristic | Intel Atom C3338R |
| 45 nm | Technology | 14 nm |
| Monolithic | Chip design | Monolithic |
| x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| SSE4.1, SSE4.2 | ISA extensions | SSE4.1, SSE4.2 |
| LGA 1366 | Socket | BGA 1310 |
| VT-x, VT-x EPT | Virtualization | VT-x, VT-x EPT, VT-d |
| No | AES-NI | Yes |
| Windows 10, Linux | Operating systems | Windows 10, Linux |
| Q4/2008 | Release date | Q2/2020 |
| 305 $ | Release price | 37 $ |
| show more data | show more data | |
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4C 8T @ 2.93 GHz (3.20 GHz) buy now on Amazon and save!
2C 2T @ 1.80 GHz (2.20 GHz) buy now on Amazon and save!
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Rate these processors
Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Intel Core i7-940
4C 8T @ 3.20 GHz |
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Intel Atom C3338R
2C 2T @ 2.20 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Intel Core i7-940
4C 8T @ 2.93 GHz |
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Intel Atom C3338R
2C 2T @ 2.00 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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Intel Core i7-940
4C 8T @ 3.20 GHz |
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Intel Atom C3338R
2C 2T @ 2.20 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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Intel Core i7-940
4C 8T @ 2.93 GHz |
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Intel Atom C3338R
2C 2T @ 2.00 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
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Intel Core i7-940
4C 8T @ 2.93 GHz |
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Intel Atom C3338R
2C 2T @ 2.00 GHz |
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Devices using this processor |
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| Intel Core i7-940 | Intel Atom C3338R |
| Unknown | Unknown |
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