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Intel Core 2 Duo T8300 vs Intel Core i5-430UM vs Intel Core i5-580M

Intel Core 2 Duo T8300

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The Intel Core 2 Duo T8300 was at the time of announcement a fast dual-core CPU for laptops with 3 MB level 2 cache. It is based on the Penryn core with all features enabled (but without the full 6MB level 2 cache). The later announced Core 2 Duo P7450 was cheaper and used less power.

Intel Core i5-430UM

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The Intel Core i5-430UM is a Ultra Low Voltage dual-core processor for small and light laptops. It is clocked with 1.2 - 1.7 GHz (if Turbo Boost is enabled). Each core is based on the Nehalem (Westmere) micro-architecture. Hyperthreading enables the Dual Core CPU to handle 4 threads at once (for a better usage of the pipeline). AES, VT-d and Trusted Execution are deactivated for the 430UM, compared to the i7 UM CPUs.

A feature of the new Core i5-430UM is the integrated graphics card (called Intel HD Graphics) and memory controller. Both are on a separate die that is still manufactured in 45nm whereas the CPU die is already manufactured in the new 32nm process.

Due to the integrated memory controller, the HyperThreading and Turbo Boost, the  Core i3-430UM is faster than a similar clocked Core 2 Duo (1.2 GHz) in all (us known) applications and benchmarks. Still the Turbo Boost may not trigger very often (sometimes it is even not activated in the BIOS) and therefore the maximum of 1.83 GHz may not be important.

The integrated Intel Graphics Media Accelerator HD (GMA HD) graphics card is between 166-500 MHz (Turbo Boost) and therefore the base speed is clearly below the non low voltage versions. The performance should still be faster than the old GMA 4500MHD.

The power consumption of 18 Watt TDP (max.) counts for the whole package and therefore it is clearly better than the 17 Watt TDP of the Core 2 Duo SL-series (CPU alone).

Intel Core i5-580M

► remove from comparison Intel 580M

The Intel Core i5-580M is a high end dual core CPU for laptops and clocks (due to the Turbo Mode) from 2.66 to 3.33 GHz. Each core is based on the Nehalem (Westmere) micro-architecture. Hyperthreading enables the Dual Core CPU to handle 4 threads at once (for a better usage of the pipeline). Compared to the Core i7-620M, the 580M only has 3 MB Level 3 Cache.

A feature of the new Core i5-580M is the integrated graphics card called GMA HD and memory controller for DDR3-800/1066. Both are on a separate die that is still manufactured in 45nm whereas the CPU die is already manufactured in the new 32nm process.

The performance of the Core i5-580M should be a bit beyond the Core i7-620M and therefore the second fastest dual core CPU for laptops in 2010. Compared to the older Core 2 Duo models, the i5-580M should be faster than the T9900. Therefore, the Core i5-580M is a high end dual core cpu which should handle all daily work and gaming tasks. Only the quad core i7 CPUs can be noticeably faster at tasks that require four or more threads (e.g. rendering).

The 32nm cpu cores of the Westmere generation can also process some new instructions to accelerate AES encryptions.

The integrated Intel Graphics Media Accelerator HD (GMA HD) graphics card is known to be clocked up to 500-766 MHz and should be clearly faster than the old GMA 4500MHD. A GeForce 9400M (ION) should still be a faster (especially as Nvidia and ATI cards have a better driver support than Intel up to now). According to rumors, the GMA core will also use the Turbo Mode regulate the clock speed.

The power consumption of 35 Watt TDP (max.) counts for the whole package and therefore it is clearly better than the 35 Watt TDP of the Core 2 Duo T-series (CPU alone). Due to the Turbo Boost, the Core i5 is likely to use the whole TDP of 35 Watt under load and therefore can use more power than a similar specified Core 2 Duo. In Idle mode, the i5 uses clearly less power than the Core 2 Duo CPUs.

ModelIntel Core 2 Duo T8300Intel Core i5-430UMIntel Core i5-580M
SeriesIntel Core 2 DuoIntel Core i5Intel Core i5
CodenamePenrynArrandaleArrandale
Series: Core i5 Arrandale
Intel Core 2 Duo T99003.06 GHz2 / 2 cores
Intel Core 2 Duo T98002.92 GHz2 / 2 cores
Intel Core 2 Duo P97002.8 GHz2 / 2 cores
Intel Core 2 Duo T96002.8 GHz2 / 2 cores
Intel Core 2 Duo P96002.66 GHz2 / 2 cores
Intel Core 2 Duo T95502.66 GHz2 / 2 cores
Intel Core 2 Duo T95002.6 GHz2 / 2 cores
Intel Core 2 Duo SP96002.53 GHz2 / 2 cores
Intel Core 2 Duo P95002.53 GHz2 / 2 cores
Intel Core 2 Duo T94002.53 GHz2 / 2 cores
Intel Core 2 Duo P88002.66 GHz2 / 2 cores
Intel Core 2 Duo T93002.5 GHz2 / 2 cores
Intel Core 2 Duo P87002.53 GHz2 / 2 cores
Intel Core 2 Duo SP94002.4 GHz2 / 2 cores
Intel Core 2 Duo P86002.4 GHz2 / 2 cores
Intel Core 2 Duo T8300 « 2.4 GHz2 / 2 cores
Intel Core 2 Duo SP93002.26 GHz2 / 2 cores
Intel Core 2 Duo P84002.26 GHz2 / 2 cores
Intel Core 2 Duo P75702.26 GHz2 / 2 cores
Intel Core 2 Duo P75502.26 GHz2 / 2 cores
Intel Core 2 Duo T67702.3 GHz2 / 2 cores
Intel Core 2 Duo SL96002.13 GHz2 / 2 cores
Intel Core 2 Duo P74502.13 GHz2 / 2 cores
Intel Core 2 Duo T66702.2 GHz2 / 2 cores
Intel Core 2 Duo T66002.2 GHz2 / 2 cores
Intel Core 2 Duo T81002.1 GHz2 / 2 cores
Intel Core 2 Duo P73702 GHz2 / 2 cores
Intel Core 2 Duo P73502 GHz2 / 2 cores
Intel Core 2 Duo T65702.1 GHz2 / 2 cores
Intel Core 2 Duo T65002.1 GHz2 / 2 cores
Intel Core 2 Duo SL94001.86 GHz2 / 2 cores
Intel Core 2 Duo SL93801.8 GHz2 / 2 cores
Intel Core 2 Duo T64002 GHz2 / 2 cores
Intel Core 2 Duo SL93001.6 GHz2 / 2 cores
Intel Core 2 Duo SU96001.6 GHz2 / 2 cores
Intel Core 2 Duo SU94001.4 GHz2 / 2 cores
Intel Core 2 Duo SU73001.3 GHz2 / 2 cores
Intel Core 2 Duo SU93001.2 GHz2 / 2 cores
Intel Core i5-580M2.67 - 3.33 GHz2 / 4 cores3 MB L3
Intel Core i5-560M2.67 - 3.2 GHz2 / 4 cores3 MB L3
Intel Core i5-480M2.67 - 2.93 GHz2 / 4 cores3 MB L3
Intel Core i5-540M2.53 - 3.07 GHz2 / 4 cores3 MB L3
Intel Core i5-460M2.53 - 2.8 GHz2 / 4 cores3 MB L3
Intel Core i5-520M2.4 - 2.93 GHz2 / 4 cores3 MB L3
Intel Core i5-450M2.4 - 2.66 GHz2 / 4 cores3 MB L3
Intel Core i5-430M2.26 - 2.53 GHz2 / 4 cores3 MB L3
Intel Core i5-560UM1.33 - 2.13 GHz2 / 4 cores3 MB L3
Intel Core i5-470UM1.33 - 1.87 GHz2 / 4 cores3 MB L3
Intel Core i5-540UM1.2 - 2 GHz2 / 4 cores3 MB L3
Intel Core i5-520UM1.06 - 1.87 GHz2 / 4 cores3 MB L3
Intel Core i5-430UM « 1.2 - 1.73 GHz2 / 4 cores3 MB L3
Intel Core i5-580M « 2.67 - 3.33 GHz2 / 4 cores3 MB L3
Intel Core i5-560M2.67 - 3.2 GHz2 / 4 cores3 MB L3
Intel Core i5-480M2.67 - 2.93 GHz2 / 4 cores3 MB L3
Intel Core i5-540M2.53 - 3.07 GHz2 / 4 cores3 MB L3
Intel Core i5-460M2.53 - 2.8 GHz2 / 4 cores3 MB L3
Intel Core i5-520M2.4 - 2.93 GHz2 / 4 cores3 MB L3
Intel Core i5-450M2.4 - 2.66 GHz2 / 4 cores3 MB L3
Intel Core i5-430M2.26 - 2.53 GHz2 / 4 cores3 MB L3
Intel Core i5-560UM1.33 - 2.13 GHz2 / 4 cores3 MB L3
Intel Core i5-470UM1.33 - 1.87 GHz2 / 4 cores3 MB L3
Intel Core i5-540UM1.2 - 2 GHz2 / 4 cores3 MB L3
Intel Core i5-520UM1.06 - 1.87 GHz2 / 4 cores3 MB L3
Intel Core i5-430UM1.2 - 1.73 GHz2 / 4 cores3 MB L3
Clock2400 MHz1200 - 1730 MHz2666 - 3333 MHz
FSB80025004800
L2 Cache3 MB512 KB512 KB
Cores / Threads2 / 22 / 42 / 4
TDP35 Watt18 Watt35 Watt
Transistors410 Million382+177 Million382+177 Million
Technology45 nm, 1-1.25V32 nm32 nm
Die Size107 mm281+114 mm281+114 mm2
max. Temp.105 °C105 °C105 °C
SocketBGA479, PGA478BGA1288BGA1288, PGA988
FeaturesVirtualization (VT-x), Intel 64, Idle States, Enhanced Speedstep, Execute Disable BitIntel HD Graphics 166-500MHz, DDR3-800 Memory Controller, Turbo Boost, Hyper-Threading, Virtualization Technology VT-x, Intel 64, Idle States, Enhanced Speedstep, Thermal Monitoring, Fast Memory Access, Flex Memory Access, Execute Disable BitTurbo Boost, Hyper Threading, Enhanced Speedstep, integrierte GMA HD 500-733MHz, Dual Channel DDR3 memory controller
Architecturex86x86x86
$241 U.S.$266 U.S.
Announced
Manufacturerark.intel.comark.intel.comark.intel.com
L3 Cache3 MB3 MB
L1 Cache128 KB

Benchmarks

Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
100%
1 580M +
min: 2.41     avg: 2.5     median: 2.5 (3%)     max: 2.5 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
100%
1 T8300 +
min: 2406     avg: 2612     median: 2626 (16%)     max: 2704 Points
134%
1 580M +
min: 3511     avg: 3545     median: 3519 (21%)     max: 3606 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
100%
1 T8300 +
min: 3918     avg: 4773     median: 4837 (4%)     max: 4965 Points
158%
1 580M +
min: 7591     avg: 7700     median: 7666 (6%)     max: 7842 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 580M +
min: 7549     avg: 8744     median: 9273 (6%)     max: 9411 Points
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 580M +
min: 3535     avg: 4095     median: 4374 (5%)     max: 4377 Points
3DMark 06 - CPU - 3DMark 06 - CPU
100%
1 T8300 +
min: 1986     avg: 2121     median: 2143 (5%)     max: 2181 Points
148%
1 580M +
min: 3126     avg: 3174     median: 3174 (7%)     max: 3222 Points
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
100%
1 T8300 +
min: 20     avg: 20.8     median: 21 (5%)     max: 21 s
102%
1 580M +
min: 13     avg: 13.3     median: 13 (3%)     max: 14 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
100%
1 T8300 +
min: 50     avg: 50.5     median: 50.5 (2%)     max: 51 s
101%
1 580M +
min: 32     avg: 33     median: 33 (1%)     max: 34 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
100%
1 T8300 +
1206 s (5%)
102%
1 580M +
min: 769     avg: 781     median: 773 (3%)     max: 801 s
SiSoft Sandra Dhrystone (MIPS) - SiSoft Sandra Dhrystone (MIPS)
100%
1 T8300 +
22062 MIPS (10%)
199%
1 580M +
43800 MIPS (21%)
SiSoft Sandra Whetstone (MFLOPS) - SiSoft Sandra Whetstone (MFLOPS)
100%
1 T8300 +
17583 MFLOPS (13%)
181%
1 580M +
31750 MFLOPS (24%)
PCMark 05 - PCMark 05 - Standard
100%
1 T8300 +
min: 4358     avg: 5255     median: 5311 (11%)     max: 6090 Points
Windows Vista Experience Index - Windows Vista Leistungsindex - Prozessor
100%
1 T8300 +
min: 4     avg: 5.1     median: 5.3 (76%)     max: 5.4 Points
Windows 7 Experience Index - Win7 CPU
100%
1 580M +
6.9 Points (88%)
3DMark Vantage - 3DM Vant. Perf. CPU no Physx
100%
1 T8300 +
4628 Points (4%)
183%
1 580M +
min: 8375     avg: 8458     median: 8457.5 (7%)     max: 8540 Points

Average Benchmarks Intel Core 2 Duo T8300 → 0% n=

Average Benchmarks Intel Core i5-580M → 0% n=

- 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

v1.27
log 16. 15:57:33

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#4 did not recreate cache, as it is less than 5 days old! Created at Sun, 16 Jun 2024 05:37:17 +0200 +0.001s ... 0.001s

#5 composed specs +0.028s ... 0.029s

#6 did output specs +0s ... 0.029s

#7 getting avg benchmarks for device 379 +0.003s ... 0.032s

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#9 getting avg benchmarks for device 998 +0.003s ... 0.073s

#10 got single benchmarks 998 +0.007s ... 0.08s

#11 getting avg benchmarks for device 992 +0.003s ... 0.082s

#12 got single benchmarks 992 +0.012s ... 0.094s

#13 got avg benchmarks for devices +0s ... 0.094s

#14 min, max, avg, median took s +0.082s ... 0.176s

#15 return log +0s ... 0.176s

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Redaktion, 2017-09- 8 (Update: 2023-07- 1)