Intel Xeon D-1521 | Intel Pentium Gold 6405U | |
CPU comparisonIntel Xeon D-1521 or Intel Pentium Gold 6405U - 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 Xeon D-1521 has 4 cores with 8 threads and clocks with a maximum frequency of 2.70 GHz. Up to 128 GB of memory is supported in 2 memory channels. The Intel Xeon D-1521 was released in Q4/2015. The Intel Pentium Gold 6405U has 2 cores with 4 threads and clocks with a maximum frequency of 2.40 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Pentium Gold 6405U was released in Q4/2019. |
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Intel Xeon D (79) | Family | Intel Pentium (150) |
Intel Xeon D-1500 (22) | CPU group | Intel Pentium 6000 (1) |
1 | Generation | 10 |
Broadwell | Architecture | Comet Lake U |
Desktop / Server | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Xeon D-1521 is a 4 core processor with a clock frequency of 2.40 GHz (2.70 GHz). The Intel Pentium Gold 6405U has 2 CPU cores with a clock frequency of 2.40 GHz. |
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Intel Xeon D-1521 | Characteristic | Intel Pentium Gold 6405U |
4 | Cores | 2 |
8 | Threads | 4 |
normal | Core architecture | normal |
Yes | Hyperthreading | Yes |
No | Overclocking ? | No |
2.40 GHz | Frequency | 2.40 GHz |
2.70 GHz | Turbo Frequency (1 Core) | -- |
2.40 GHz | Turbo Frequency (All Cores) | -- |
Integrated graphics (iGPU)The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs. |
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no iGPU | GPU | Intel UHD Graphics 610 |
GPU frequency | 0.30 GHz | |
-- | GPU (Turbo) | 0.95 GHz |
-- | GPU Generation | 9.5 |
Technology | 14 nm | |
Max. displays | 3 | |
-- | Compute units | 12 |
-- | Shader | 96 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
-- | Max. GPU Memory | 32 GB |
-- | DirectX Version | 12 |
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 | Intel UHD Graphics 610 |
No | Codec h265 / HEVC (8 bit) | Decode / Encode |
No | Codec h265 / HEVC (10 bit) | Decode / Encode |
No | Codec h264 | Decode / Encode |
No | Codec VP9 | Decode / Encode |
No | Codec VP8 | Decode / Encode |
No | Codec AV1 | No |
No | Codec AVC | Decode / Encode |
No | Codec VC-1 | Decode |
No | Codec JPEG | Decode / Encode |
Memory & PCIeThe Intel Xeon D-1521 supports a maximum of 128 GB of memory in 2 memory channels. The Intel Pentium Gold 6405U can connect up to 64 GB of memory in 2 memory channels. |
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Intel Xeon D-1521 | Characteristic | Intel Pentium Gold 6405U |
DDR4-2133 | Memory | LPDDR3-2133, DDR4-2400 |
128 GB | Max. Memory | 64 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
34.1 GB/s | Max. Bandwidth | 38.4 GB/s |
Yes | ECC | No |
6.00 MB | L2 Cache | -- |
-- | L3 Cache | 2.00 MB |
3.0 | PCIe version | 2.0 |
32 | PCIe lanes | 12 |
31.5 GB/s | PCIe Bandwidth | 6.0 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Xeon D-1521 has a TDP of 45 W, that of the Intel Pentium Gold 6405U is 15 W. |
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Intel Xeon D-1521 | Characteristic | Intel Pentium Gold 6405U |
45 W | TDP (PL1 / PBP) | 15 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | 12.5 W |
-- | Tjunction max. | 100 °C |
Technical detailsThe Intel Xeon D-1521 has a 6.00 MB cache, while the Intel Pentium Gold 6405U cache has a total of 2.00 MB. |
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Intel Xeon D-1521 | Characteristic | Intel Pentium Gold 6405U |
14 nm | Technology | 14 nm |
Monolithic | Chip design | Monolithic |
x86-64 (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
SSE4.1, SSE4.2, AVX2 | ISA extensions | SSE4.1, SSE4.2 |
BGA 1667 | Socket | BGA 1528 |
VT-x, VT-x EPT, VT-d | Virtualization | VT-x, VT-x EPT, VT-d |
Yes | AES-NI | Yes |
Windows 10, Linux | Operating systems | Windows 10, Windows 11, Linux |
Q4/2015 | Release date | Q4/2019 |
216 $ | Release price | 193 $ |
show more data | show more data | |
Intel Xeon D-1521
4C 8T @ 2.70 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz |
Intel Xeon D-1521
4C 8T @ 2.40 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz |
Intel Xeon D-1521
4C 8T @ 2.40 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz |
Intel Xeon D-1521
4C 8T @ 2.70 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz |
Intel Xeon D-1521
4C 8T @ 2.40 GHz |
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Intel Pentium Gold 6405U
2C 4T @ 2.40 GHz |
Intel Xeon D-1521
@ 0.00 GHz |
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Intel Pentium Gold 6405U
Intel UHD Graphics 610 @ 0.95 GHz |
Devices using this processor |
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Intel Xeon D-1521 | Intel Pentium Gold 6405U |
Unknown | Lenovo Ideapad 3 17IML05 |