Intel Core i5-5257U vs Intel Core i5-4258U
Intel Core i5-5257U
$315
Intel Core i5-4258U
$342
|
2 Cores
4 Threads
2.7GHz Clock
|
2 Cores
4 Threads
2.4GHz Clock
|
|
Socket
BGA 1168
|
Socket
BGA 1168
|
|
iGPU
Iris 6100 1050MHz
810 GFLOPS FP32
|
iGPU
Iris 5100 1100MHz
700 GFLOPS FP32
|
GB6 Single-Core
|
|
Core i5-5257U - GB6S 905
x1.05
Core i5-4258U - GB6S 860
x1
GB6 Multi-Core
|
|
Core i5-5257U - GB6M 1,710
x1.01
Core i5-4258U - GB6M 1,690
x1
|
|
Core i5-5257U - 25.6GB/s
x1
Core i5-4258U - 25.6GB/s
x1
|
|
Core i5-5257U - 28W
x1
Core i5-4258U - 28W
x1
|
|
Core i5-5257U - 810 GFLOPS FP32
x1.16
Core i5-4258U - 700 GFLOPS FP32
x1
|
GB6S 905
22%
|
GB6S 860
21%
|
|
GB6M 1,710
6%
|
GB6M 1,690
6%
|
|
0%
|
0%
|
|
0%
|
0%
|
|
Manufacturer
Intel
|
Manufacturer
Intel
|
|
Architecture
Broadwell
|
Architecture
Haswell
|
|
Family
Core 5th Gen
|
Family
Core 4th Gen
|
|
Instruction Set (ISA)
x86-64
|
Instruction Set (ISA)
x86-64
|
|
Codename
Broadwell-U
Broadwell-2C-GT3
|
Codename
Haswell-ULT
Haswell-2C-GT3
|
|
Market Segment
Laptop
|
Market Segment
Laptop
|
|
Release Date
1/1/2015
|
Release Date
6/1/2013
|
|
Foundry
Intel
Intel (PCH Die)
|
Foundry
Intel
Intel (PCH Die)
|
|
Node
14nm
22nm (PCH Die)
|
Node
22nm
22nm (PCH Die)
|
|
Die Size
133 mm²
52 mm² (PCH Die)
|
Die Size
181 mm²
52 mm² (PCH Die)
|
|
Transistor Count
1.9 Billion
|
Transistor Count
1.3 Billion
|
|
2 Cores
|
2 Cores
|
|
4 Threads
|
4 Threads
|
|
2.7GHz
3.1GHz Boost
|
2.4GHz
2.9GHz Boost
|
|
Overclocking
Locked
|
Overclocking
Locked
|
|
Type
DMI
|
Type
DMI
|
|
Transfer Rate
5GT/s
|
Transfer Rate
5GT/s
|
|
Lanes
4
|
Lanes
4
|
|
Bandwidth
2.5GB/s
|
Bandwidth
2.5GB/s
|
|
Bi-directional
5GB/s
|
Bi-directional
5GB/s
|
|
L0 Instruction
|
L0 Instruction
|
|
L0 Data
|
L0 Data
|
|
L1 Instruction
32KB/Core
8-way set associative
|
L1 Instruction
32KB/Core
8-way set associative
|
|
L1 Data
32KB/Core
8-way set associative
|
L1 Data
32KB/Core
8-way set associative
|
|
L2
256KB/Core
8-way set associative
|
L2
256KB/Core
8-way set associative
|
|
L3
3MB Shared
12-way set associative
|
L3
3MB Shared
12-way set associative
|
|
Channels
2
|
Channels
2
|
|
Max Memory
16GB
16GB
|
Max Memory
16GB
|
|
ECC
Not Supported
|
ECC
Not Supported
|
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
Bus Width/Channel
64Bit
Bus Width
128Bit
|
|
Clock
800MHz
933MHz
Transfer Rate
1600MT/s
1866MT/s
|
Clock
800MHz
Transfer Rate
1600MT/s
|
|
Bandwidth/Channel
12.8GB/s
14.9GB/s
Bandwidth
25.6GB/s
29.9GB/s
|
Bandwidth/Channel
12.8GB/s
Bandwidth
25.6GB/s
|
|
TDP
28W
|
TDP
28W
|
|
Temp
105°C Max
|
Temp
100°C Max
|
|
Included Cooler
|
Included Cooler
|
|
PCIe 2.0 x12 Lanes
|
PCIe 2.0 x12 Lanes
|
|
Iris 6100 1050MHz
384 Shaders
1050MHz
810 GFLOPS FP32
|
Iris 5100 1100MHz
320 Shaders
1100MHz
700 GFLOPS FP32
|
|
No NPU
|
No NPU
|
|
No Cellular
|
No Cellular
|
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