Qualcomm Snapdragon 820 vs Intel Core i7-975
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CPU comparison with benchmarks
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| Qualcomm Snapdragon 820 | Intel Core i7-975 | |
CPU comparisonIn this CPU comparison, we compare the Qualcomm Snapdragon 820 and the Intel Core i7-975 and use benchmarks to check which processor is faster.
We compare the Qualcomm Snapdragon 820 4 core processor released in Q4/2015 with the Intel Core i7-975 which has 4 CPU cores and was introduced in Q4/2008. |
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| Qualcomm Snapdragon (102) | Family | Intel Core i7 Extreme Edition (24) |
| Qualcomm Snapdragon 820 (3) | CPU group | Intel Core i7 900 (7) |
| 3 | Generation | 1 |
| Kryo | Architecture | Bloomfield |
| Mobile | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Qualcomm Snapdragon 820 is a 4 core processor with a clock frequency of 2.15 GHz. The processor can compute 4 threads at the same time. The Intel Core i7-975 clocks with 3.33 GHz (3.60 GHz), has 4 CPU cores and can calculate 8 threads in parallel. |
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| Qualcomm Snapdragon 820 | Characteristic | Intel Core i7-975 |
| 4 | Cores | 4 |
| 4 | Threads | 8 |
| hybrid (big.LITTLE) | Core architecture | normal |
| No | Hyperthreading | Yes |
| No | Overclocking ? | Yes |
| 2.15 GHz 2x Kryo |
A-Core | 3.33 GHz (3.60 GHz) |
| 1.60 GHz 2x Kryo |
B-Core | -- |
Artificial Intelligence and Machine LearningProcessors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor. |
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| Qualcomm Snapdragon 820 | Characteristic | Intel Core i7-975 |
| Qualcomm AI engine | AI hardware | -- |
| Hexagon 680 | AI specifications | -- |
Internal GraphicsGraphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback. |
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| Qualcomm Adreno 530 | GPU | no iGPU |
| 0.62 GHz | GPU frequency | -- |
| 0.62 GHz | GPU (Turbo) | -- |
| 5 | GPU Generation | -- |
| 14 nm | Technology | |
| 0 | Max. displays | |
| -- | Compute units | -- |
| 256 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | -- |
| 11,1 | DirectX Version | -- |
Hardware codec supportA photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos. |
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| Qualcomm Adreno 530 | GPU | no iGPU |
| Decode | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| Decode | Codec h264 | No |
| Decode | Codec VP9 | No |
| Decode | Codec VP8 | No |
| No | Codec AV1 | No |
| No | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode | Codec JPEG | No |
Memory & PCIeUp to 12 GB of memory in a maximum of 4 memory channels is supported by the Qualcomm Snapdragon 820, while the Intel Core i7-975 supports a maximum of 24 GB of memory with a maximum memory bandwidth of 25.6 GB/s enabled. |
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| Qualcomm Snapdragon 820 | Characteristic | Intel Core i7-975 |
| LPDDR4-3733 | Memory | DDR3-1066 |
| 12 GB | Max. Memory | 24 GB |
| 4 (Quad Channel) | Memory channels | 3 |
| 14.9 GB/s | Max. Bandwidth | 25.6 GB/s |
| No | ECC | No |
| -- | L2 Cache | 1.00 MB |
| -- | L3 Cache | 8.00 MB |
| -- | PCIe version | -- |
| -- | PCIe lanes | -- |
| -- | PCIe Bandwidth | -- |
Thermal ManagementThe Qualcomm Snapdragon 820 has a TDP of --. The TDP of the Intel Core i7-975 is 130 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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| Qualcomm Snapdragon 820 | Characteristic | Intel Core i7-975 |
| -- | TDP (PL1 / PBP) | 130 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | -- |
Technical detailsThe Qualcomm Snapdragon 820 has 0.00 MB cache and is manufactured in 14 nm. The cache of Intel Core i7-975 is at 9.00 MB. The processor is manufactured in 45 nm. |
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| Qualcomm Snapdragon 820 | Characteristic | Intel Core i7-975 |
| 14 nm | Technology | 45 nm |
| Chiplet | Chip design | Monolithic |
| Armv8-A (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
| -- | ISA extensions | SSE4.1, SSE4.2 |
| -- | Socket | LGA 1366 |
| None | Virtualization | VT-x, VT-x EPT |
| No | AES-NI | No |
| Android | Operating systems | Windows 10, Linux |
| Q4/2015 | Release date | Q4/2008 |
| -- | Release price | 1059 $ |
| show more data | show more data | |
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4C 8T @ 3.33 GHz (3.60 GHz) buy now on Amazon and save!
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks
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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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
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Intel Core i7-975
4C 8T @ 3.60 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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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
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Intel Core i7-975
4C 8T @ 3.33 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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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
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Intel Core i7-975
4C 8T @ 3.60 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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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
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Intel Core i7-975
4C 8T @ 3.33 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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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
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Intel Core i7-975
4C 8T @ 3.33 GHz |
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iGPU - FP32 Performance (Single-precision GFLOPS)
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
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Qualcomm Snapdragon 820
Qualcomm Adreno 530 @ 0.62 GHz |
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Intel Core i7-975
@ 0.00 GHz |
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CPU-Z Benchmark 17 (Multi-Core)
The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
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Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz |
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Intel Core i7-975
4C 8T @ 3.33 GHz |
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Devices using this processor |
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| Qualcomm Snapdragon 820 | Intel Core i7-975 |
| Unknown | Unknown |
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