Intel Core i7-4578U | Intel Pentium 957 | |
CPU comparisonIntel Core i7-4578U or Intel Pentium 957 - 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 i7-4578U has 2 cores with 4 threads and clocks with a maximum frequency of 3.50 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core i7-4578U was released in Q3/2014. The Intel Pentium 957 has 2 cores with 2 threads and clocks with a maximum frequency of 1.20 GHz. The CPU supports up to 8 GB of memory in 2 memory channels. The Intel Pentium 957 was released in Q2/2011. |
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Intel Core i7 (298) | Family | Intel Pentium (150) |
Intel Core i 4000U (26) | CPU group | Intel Pentium 900 (10) |
4 | Generation | 3 |
Haswell U | Architecture | Sandy Bridge U |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe Intel Core i7-4578U is a 2 core processor with a clock frequency of 3.00 GHz (3.50 GHz). The Intel Pentium 957 has 2 CPU cores with a clock frequency of 1.20 GHz. |
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Intel Core i7-4578U | Characteristic | Intel Pentium 957 |
2 | Cores | 2 |
4 | Threads | 2 |
normal | Core architecture | normal |
Yes | Hyperthreading | No |
No | Overclocking ? | No |
3.00 GHz | Frequency | 1.20 GHz |
3.50 GHz | Turbo Frequency (1 Core) | -- |
-- | Turbo Frequency (All Cores) | -- |
Internal GraphicsThe 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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Intel Iris Graphics 5100 | GPU | Intel HD Graphics (Sandy Bridge GT1) |
0.20 GHz | GPU frequency | 0.35 GHz |
1.20 GHz | GPU (Turbo) | 0.80 GHz |
7.5 | GPU Generation | 6 |
22 nm | Technology | 32 nm |
3 | Max. displays | 2 |
40 | Compute units | 6 |
320 | Shader | 48 |
No | Hardware Raytracing | No |
No | Frame Generation | No |
16 GB | Max. GPU Memory | 2 GB |
11.1 | DirectX Version | 10.1 |
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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Intel Iris Graphics 5100 | GPU | Intel HD Graphics (Sandy Bridge GT1) |
No | Codec h265 / HEVC (8 bit) | No |
No | Codec h265 / HEVC (10 bit) | No |
Decode / Encode | Codec h264 | Decode / Encode |
No | Codec VP9 | No |
No | Codec VP8 | No |
No | Codec AV1 | No |
Decode / Encode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode |
Decode | Codec JPEG | No |
Memory & PCIeThe Intel Core i7-4578U supports a maximum of 16 GB of memory in 2 memory channels. The Intel Pentium 957 can connect up to 8 GB of memory in 2 memory channels. |
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Intel Core i7-4578U | Characteristic | Intel Pentium 957 |
LPDDR3-1333, LPDDR3-1600, DDR3L-1333, DDR3L-1600 | Memory | DDR3-1066, DDR3-1333 |
16 GB | Max. Memory | 8 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
25.6 GB/s | Max. Bandwidth | 21.3 GB/s |
No | ECC | No |
-- | L2 Cache | -- |
4.00 MB | L3 Cache | 2.00 MB |
2.0 | PCIe version | 2.0 |
12 | PCIe lanes | 16 |
6.0 GB/s | PCIe Bandwidth | 8.0 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i7-4578U has a TDP of 28 W, that of the Intel Pentium 957 is 17 W. |
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Intel Core i7-4578U | Characteristic | Intel Pentium 957 |
28 W | TDP (PL1 / PBP) | 17 W |
-- | TDP (PL2) | -- |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | 100 °C |
Technical detailsThe Intel Core i7-4578U has a 4.00 MB cache, while the Intel Pentium 957 cache has a total of 2.00 MB. |
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Intel Core i7-4578U | Characteristic | Intel Pentium 957 |
22 nm | Technology | 32 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 1168 | Socket | BGA 1023 |
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, Linux |
Q3/2014 | Release date | Q2/2011 |
345 $ | Release price | -- |
show more data | show more data | |
Intel Core i7-4578U
2C 4T @ 3.50 GHz |
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Intel Pentium 957
2C 2T @ 1.20 GHz |
Intel Core i7-4578U
2C 4T @ 3.00 GHz |
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Intel Pentium 957
2C 2T @ 1.20 GHz |
Intel Core i7-4578U
Intel Iris Graphics 5100 @ 1.20 GHz |
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Intel Pentium 957
Intel HD Graphics (Sandy Bridge GT1) @ 0.80 GHz |
Intel Core i7-4578U
2C 4T @ 3.00 GHz |
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Intel Pentium 957
2C 2T @ 1.20 GHz |
Intel Core i7-4578U
2C 4T @ 3.50 GHz |
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Intel Pentium 957
2C 2T @ 1.20 GHz |
Intel Core i7-4578U
2C 4T @ 3.00 GHz |
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Intel Pentium 957
2C 2T @ 1.20 GHz |
Devices using this processor |
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Intel Core i7-4578U | Intel Pentium 957 |
Unknown | Unknown |