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Intel Core i5-2450M vs Intel Core i5-2557M

Intel Core i5-2450M

► remove from comparison Intel 2450M

The Intel Core i5-2450M is a fast dual core processor that first appeared in Dell laptops in 11/2011. It is based on the Sandy Bridge architecture and offers Hyperthreading to handle 4 threads at once (for a better usage of the pipeline). Compared to the faster Core i7, the i5 offers a smaller last level cache of 3MB. The base clock speed is 2.5 GHz but due to Turbo Boost it can reach 2.8 GHz (2 cores active) and 3.1 GHz (1 core active). Compared to the 2510M, the 2450M does not support VT-d and Trusted Execution functions. However, the integrated gpu offers a higher Turbo Boost clock rate.

Sandy Bridge is the evolutionary successor of the Arrandale architecture. The most noteable improvements is the improved Turbo Boost 2.0 and the integration of the graphics card into the 32nm CPU core. 

The i5-2450M offers an integrated graphics card (Intel HD Graphics 3000) which is clearly faster then the older Intel HD Graphics in the Arrandale CPUs. As the new GPU is included in the CPU, it is also manufactured in 32nm and shares the fast level 3 cache with the CPU cores (using a new ring bus). In the 2435M it is clocked with  650 or 1300MHz (with Turbo Boost).

Furthermore, an improved dual-channel DDR3 memory controller is included on the CPU die that is used by the CPU and GPU part.

Due to the improved architecture and the new Turbo Boost 2.0, the average performance of the Core i5-2450M is higher than a similar clocked Arrandale Core i5. Looking at benchmarks of slower clocked Core i5 CPUs, the i5-2450M should position itself slightly above the old Core i5-620M and is therefore suited even for demanding tasks.

The 35W TDP rating includes the integrated GPU and memory controller.

Intel Core i5-2557M

► remove from comparison

The Intel Core i5-2557M is power efficient ULV (Ultra Low Voltage) processor for thin and light laptops. The base frequency of 1.7 GHz is relatively low, but due to Turbo Boost 2.0, the CPU may clock up to 2.7 GHz (on core loaded, 2.4 GHz with both cores loaded). However, this is depending on the cooling and power consumption of the laptop. Due to HyperThreading, the i5-2557M is able to handle 4 threads in parallel. Compared to the Core i7-2657M, the i5 offers less cache but a higher base clock speed and faster graphics turbo boost.

Sandy Bridge is the evolutionary successor of the Arrandale architecture. The most noteable improvements is the improved Turbo 2.0 and the integration of the graphics card into the 32nm CPU core. 

The integrated Intel HD Graphics 3000 clocked at 350 or 1200MHz (Turbo Boost). Due to the slower clock rate, compared to HD Graphics 3000 in 35W and 45W processors (usually clocked at 650-1100/1300MHz in non LV processors), the performance should be noticeable lower.

The performance of the CPU should be a bit higher than a similar clocked Arrandale Core i5. In our benchmarks (see below), the similar 2657M ULV processor was as fast as a Core i3-2310M due to the high Turbo Boost frequencies. However, the laptop cooling system has to keep the processor relatively cool for the Turbo Boost to work often.

The TDP of 17W (includes the integrated GPU and memory controller) allows the use of the 2557M CPU in small subnotebooks.

Intel Core i5-2450MIntel Core i5-2557M
Intel Core i5Intel Core i5
Sandy BridgeSandy Bridge
Series: Core i5 Sandy Bridge
Intel Core i5-2540M compare2.6 - 3.3 GHz2 / 43 MB
Intel Core i5-2520M compare2.5 - 3.2 GHz2 / 43 MB
» Intel Core i5-2450M2.5 - 3.1 GHz2 / 43 MB
Intel Core i5-2435M compare2.4 - 3 GHz2 / 43 MB
Intel Core i5-2430M compare2.4 - 3 GHz2 / 43 MB
Intel Core i5-2415M compare2.3 - 2.9 GHz2 / 43 MB
Intel Core i5-2410M compare2.3 - 2.9 GHz2 / 43 MB
Intel Core i5-2557M1.7 - 2.7 GHz2 / 43 MB
Intel Core i5-2467M compare1.6 - 2.3 GHz2 / 43 MB
Intel Core i5-2537M compare1.4 - 2.3 GHz2 / 43 MB
Intel Core i5-2540M compare2.6 - 3.3 GHz2 / 43 MB
Intel Core i5-2520M compare2.5 - 3.2 GHz2 / 43 MB
Intel Core i5-2450M2.5 - 3.1 GHz2 / 43 MB
Intel Core i5-2435M compare2.4 - 3 GHz2 / 43 MB
Intel Core i5-2430M compare2.4 - 3 GHz2 / 43 MB
Intel Core i5-2415M compare2.3 - 2.9 GHz2 / 43 MB
Intel Core i5-2410M compare2.3 - 2.9 GHz2 / 43 MB
» Intel Core i5-2557M1.7 - 2.7 GHz2 / 43 MB
Intel Core i5-2467M compare1.6 - 2.3 GHz2 / 43 MB
Intel Core i5-2537M compare1.4 - 2.3 GHz2 / 43 MB
2500 - 3100 MHz1700 - 2700 MHz
128 KB128 KB
512 KB512 KB
3 MB3 MB
2 / 42 / 4
35 17
624 624
32 32
149 mm2149 mm2
100 °C100 °C
PPGA988BGA1023
HD Graphics 3000, DDR3-1066/1333 Memory Controller (max 8GB), HyperThreading, AVX, Quick Sync, VirtualizationTurbo Boost 2.0, VPro, Hyper-Threading, Virtualization VT-x, Virtualization for Directed I/O (VT-d), Trusted Execution, AES, Intel 64, Anti-Theft, My WiFi, Idle States, Enhanced SpeedStep, Thermal Monitorin, Execute Disable Bit
iGPUIntel HD Graphics 3000 (650 - 1300 MHz)Intel HD Graphics 3000 (350 - 1200 MHz)
Architecturex86x86
$225 U.S.$250 U.S.
Intel Core i5 2450MIntel Core i5 2557M

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 2.6     avg: 2.8     median: 2.8 (5%)     max: 2.8 Points
min: 2.18     avg: 2.2     median: 2.2 (4%)     max: 2.25 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
100%
1 2450M +
min: 1.19     avg: 1.2     median: 1.2 (38%)     max: 1.2 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 3830     avg: 3912     median: 3918.5 (35%)     max: 3989
min: 3382     avg: 3419     median: 3419 (31%)     max: 3456
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 8273     avg: 8507     median: 8542 (14%)     max: 8619
min: 6223     avg: 6534     median: 6533.5 (11%)     max: 6844
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
min: 9868     avg: 10292     median: 10318.5 (10%)     max: 10518 Points
min: 8266     avg: 8308     median: 8307.5 (8%)     max: 8349 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
min: 4664     avg: 4835     median: 4847 (34%)     max: 4922 Points
min: 4201     avg: 4203     median: 4202.5 (30%)     max: 4204 Points
wPrime 2.10 - wPrime 2.0 1024m *
min: 546.9     avg: 604     median: 606.5 (7%)     max: 655.278 s
min: 764.61     avg: 769     median: 768.5 (9%)     max: 772.419 s
wPrime 2.10 - wPrime 2.0 32m *
min: 17.7     avg: 18.9     median: 19 (4%)     max: 19.461 s
min: 23.555     avg: 23.7     median: 23.7 (5%)     max: 23.773 s
WinRAR - WinRAR 4.0
100%
1 2450M +
min: 2529     avg: 2849     median: 2848.5 (18%)     max: 3168
X264 HD Benchmark 4.0 - x264 Pass 2
100%
1 2450M +
min: 14.01     avg: 14.6     median: 14.6 (7%)     max: 15.2 fps
X264 HD Benchmark 4.0 - x264 Pass 1
100%
1 2450M +
min: 76.6     avg: 78.6     median: 78.6 (23%)     max: 80.66 fps
TrueCrypt - TrueCrypt Serpent
100%
1 2450M +
min: 0.124     avg: 0.1     median: 0.1 (5%)     max: 0.133 GB/s
TrueCrypt - TrueCrypt Twofish
100%
1 2450M +
min: 0.192     avg: 0.2     median: 0.2 (5%)     max: 0.235 GB/s
TrueCrypt - TrueCrypt AES
100%
1 2450M +
1.4 GB/s (5%)
3DMark 06 - CPU - 3DMark 06 - CPU
min: 2830     avg: 3384     median: 3441.5 (19%)     max: 3475 Points
min: 2738     avg: 2750     median: 2750 (15%)     max: 2762 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 12.963     avg: 13     median: 13 (3%)     max: 13.2 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 29     avg: 29.6     median: 29.7 (1%)     max: 30.382 s
min: 33     avg: 33.5     median: 33.5 (1%)     max: 34 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 671     avg: 689     median: 687.2 (3%)     max: 706.899 s
min: 763     avg: 771     median: 771 (3%)     max: 779 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
min: 49000     avg: 53208     median: 52850 (25%)     max: 58130 MIPS
min: 37300     avg: 38565     median: 38565 (18%)     max: 39830 MIPS
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
min: 34340     avg: 34720     median: 34490 (26%)     max: 35560 MFLOPS
min: 28460     avg: 28470     median: 28470 (22%)     max: 28480 MFLOPS
Windows 7 Experience Index - Win7 CPU
min: 7     avg: 7     median: 7 (90%)     max: 7.1 Points
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
min: 9078     avg: 9278     median: 9300 (11%)     max: 9384 Points
min: 7260     avg: 7452     median: 7452 (9%)     max: 7644 Points
3DMark 11 - 3DM11 Performance Physics
100%
1 2450M +
min: 2948     avg: 3530     median: 3521 (13%)     max: 3886 Points

Average Benchmarks Intel Core i5-2450M → 100% n=15

Average Benchmarks Intel Core i5-2557M → 88% n=15

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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v1.16
log 28. 09:02:57

#0 checking url part for id 3001 +0s ... 0s

#1 checking url part for id 2724 +0s ... 0s

#2 not redirecting to Ajax server +0s ... 0s

#3 did not recreate cache, as it is less than 5 days old! Created at Sat, 25 Sep 2021 13:09:19 +0200 +0s ... 0s

#4 composed specs +0.008s ... 0.008s

#5 did output specs +0s ... 0.008s

#6 getting avg benchmarks for device 3001 +0.001s ... 0.009s

#7 got single benchmarks 3001 +0.037s ... 0.046s

#8 getting avg benchmarks for device 2724 +0s ... 0.047s

#9 got single benchmarks 2724 +0.006s ... 0.052s

#10 got avg benchmarks for devices +0s ... 0.053s

#11 min, max, avg, median took s +0.014s ... 0.066s

#12 return log +0.004s ... 0.07s

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)