Intel Core i7-975 | Qualcomm Snapdragon 821 | |
CPU comparisonIntel Core i7-975 or Qualcomm Snapdragon 821 - 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 i7-975 has 4 cores with 8 threads and clocks with a maximum frequency of 3.60 GHz. Up to 24 GB of memory is supported in 3 memory channels. The Intel Core i7-975 was released in Q4/2008. The Qualcomm Snapdragon 821 has 4 cores with 4 threads and clocks with a maximum frequency of 2.40 GHz. The CPU supports up to 8 GB of memory in 2 memory channels. The Qualcomm Snapdragon 821 was released in Q3/2016. |
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Intel Core i7 Extreme Edition (24) | Family | Qualcomm Snapdragon (104) |
Intel Core i7 900 (7) | CPU group | Qualcomm Snapdragon 820 (3) |
1 | Generation | 3 |
Bloomfield | Architecture | Kryo |
Desktop / Server | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i7-975 has 4 CPU cores and can calculate 8 threads in parallel. The clock frequency of the Intel Core i7-975 is 3.33 GHz (3.60 GHz) while the Qualcomm Snapdragon 821 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Qualcomm Snapdragon 821 is at 2.40 GHz. |
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Intel Core i7-975 | Characteristic | Qualcomm Snapdragon 821 |
4 | Cores | 4 |
8 | Threads | 4 |
normal | Core architecture | hybrid (big.LITTLE) |
Yes | Hyperthreading | No |
Yes | Overclocking ? | No |
3.33 GHz (3.60 GHz) | A-Core | 2.40 GHz 2x Kryo |
-- | B-Core | 1.60 GHz 2x Kryo |
NPU AI performanceThe performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. |
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Intel Core i7-975 | Characteristic | Qualcomm Snapdragon 821 |
-- | AI hardware | Qualcomm AI engine |
-- | AI specifications | Hexagon 680 |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The Intel Core i7-975 or Qualcomm Snapdragon 821 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. |
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no iGPU | GPU | Qualcomm Adreno 530 |
GPU frequency | 0.62 GHz | |
-- | GPU (Turbo) | 0.62 GHz |
-- | GPU Generation | 5 |
Technology | 14 nm | |
Max. displays | 0 | |
-- | Compute units | -- |
-- | Shader | 256 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | -- |
-- | DirectX Version | 11,1 |
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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no iGPU | GPU | Qualcomm Adreno 530 |
No | Codec h265 / HEVC (8 bit) | Decode |
No | Codec h265 / HEVC (10 bit) | No |
No | Codec h264 | Decode |
No | Codec VP9 | Decode |
No | Codec VP8 | Decode |
No | Codec AV1 | No |
No | Codec AVC | No |
No | Codec VC-1 | Decode |
No | Codec JPEG | Decode |
Memory & PCIeThe Intel Core i7-975 can use up to 24 GB of memory in 3 memory channels. The maximum memory bandwidth is 25.6 GB/s. The Qualcomm Snapdragon 821 supports up to 8 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 14.9 GB/s. |
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Intel Core i7-975 | Characteristic | Qualcomm Snapdragon 821 |
DDR3-1066 | Memory | LPDDR4-3733 |
24 GB | Max. Memory | 8 GB |
3 | Memory channels | 2 (Dual Channel) |
25.6 GB/s | Max. Bandwidth | 14.9 GB/s |
No | ECC | No |
1.00 MB | L2 Cache | -- |
8.00 MB | L3 Cache | -- |
-- | PCIe version | -- |
-- | PCIe lanes | -- |
-- | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the Intel Core i7-975 is 130 W, while the Qualcomm Snapdragon 821 has a TDP of --. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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Intel Core i7-975 | Characteristic | Qualcomm Snapdragon 821 |
130 W | TDP (PL1 / PBP) | -- |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | -- |
Technical detailsThe Intel Core i7-975 is manufactured in 45 nm and has 9.00 MB cache. The Qualcomm Snapdragon 821 is manufactured in 14 nm and has a 0.00 MB cache. |
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Intel Core i7-975 | Characteristic | Qualcomm Snapdragon 821 |
45 nm | Technology | 14 nm |
Monolithic | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
SSE4.1, SSE4.2 | ISA extensions | -- |
LGA 1366 | Socket | -- |
VT-x, VT-x EPT | Virtualization | None |
No | AES-NI | No |
Windows 10, Linux | Operating systems | Android |
Q4/2008 | Release date | Q3/2016 |
1059 $ | Release price | -- |
show more data | show more data | |
Intel Core i7-975
4C 8T @ 3.60 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Intel Core i7-975
4C 8T @ 3.33 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Intel Core i7-975
4C 8T @ 3.60 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Intel Core i7-975
4C 8T @ 3.33 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Intel Core i7-975
4C 8T @ 3.33 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Intel Core i7-975
@ 0.00 GHz |
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Qualcomm Snapdragon 821
Qualcomm Adreno 530 @ 0.62 GHz |
Intel Core i7-975
4C 8T @ 3.33 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Devices using this processor |
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Intel Core i7-975 | Qualcomm Snapdragon 821 |
Unknown | Unknown |