Pentium 987 vs i5-520M

Place in the ranking	2419	2994
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Series	Intel Core i5	Intel Pentium
Power efficiency	2.92	2.28
Architecture codename	Arrandale (2010−2011)	Sandy Bridge (2011−2013)
Release date	7 January 2010 (14 years ago)	1 February 2013 (11 years ago)
Launch price (MSRP)	$225	$134

Detailed specifications

Core i5-520M and Pentium 987 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	2 (Dual-core)	2 (Dual-core)
Threads	4	2
Base clock speed	2.4 GHz	1.5 GHz
Boost clock speed	2.93 GHz	1.5 GHz
Bus type	DMI 1.0	DMI 2.0
Bus rate	1 × 2.5 GT/s	4 × 5 GT/s
Multiplier	18	15
L1 cache	128 KB	64K (per core)
L2 cache	512 KB	256K (per core)
L3 cache	3 MB	2 MB (shared)
Chip lithography	32 nm	32 nm
Die size	81+114 mm²	131 mm²
Maximum core temperature	105 °C	100 °C
Number of transistors	382+177 Million	504 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Core i5-520M and Pentium 987 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1 (Uniprocessor)	1 (Uniprocessor)
Socket	BGA1288,PGA988	FCBGA1023
Power consumption (TDP)	35 Watt	17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i5-520M and Pentium 987. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2	Intel® SSE4.1, Intel® SSE4.2
AES-NI	+	-
FMA	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	+
My WiFi	no data	-
Turbo Boost Technology	+	-
Hyper-Threading Technology	+	-
Idle States	+	+
Thermal Monitoring	+	+
Flex Memory Access	+	+
Demand Based Switching	no data	-
PAE	36 Bit	no data
FDI	+	+
Fast Memory Access	+	+

Security technologies

Core i5-520M and Pentium 987 technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	-
EDB	+	+
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i5-520M and Pentium 987 are enumerated here.

VT-d	+	-
VT-x	+	-
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i5-520M and Pentium 987. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-800, DDR3-1066	DDR3
Maximum memory size	8.3 GB	16.38 GB
Max memory channels	2	2
Maximum memory bandwidth	17.051 GB/s	21.335 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	Intel HD Graphics for Previous Generation Intel Processors	Intel HD Graphics for 2nd Generation Intel Processors
Clear Video	+	no data
Clear Video HD	+	-
Graphics max frequency	766 MHz	1 GHz

Graphics interfaces

Available interfaces and connections of Core i5-520M and Pentium 987 integrated GPUs.

Number of displays supported	2	2
eDP	no data	+
DisplayPort	-	+
HDMI	-	+
SDVO	no data	+
CRT	no data	+

Peripherals

Specifications and connection of peripherals supported by Core i5-520M and Pentium 987.

PCIe version	2.0	2.0
PCI Express lanes	16	16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i5-520M 1.08
+163%

Pentium 987 0.41

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

i5-520M 1720
+162%

Pentium 987 657

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i5-520M 362
+58.8%

Pentium 987 228

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i5-520M 699
+78.3%

Pentium 987 392

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i5-520M 2729
+83.5%

Pentium 987 1487

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i5-520M 19.99
+140%

Pentium 987 48

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i5-520M 2
+92%

Pentium 987 1