Intel Core i5-6500T vs Intel Pentium 4 HT 651

Comparative analysis of Intel Core i5-6500T and Intel Pentium 4 HT 651 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics image quality, Graphics API support, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

Intel Core i5-6500T

Intel Pentium 4 HT 651

Differences

Reasons to consider the Intel Core i5-6500T

CPU is newer: launch date 9 year(s) 7 month(s) later
3 more cores, run more applications at once: 4 vs 1
A newer manufacturing process allows for a more powerful, yet cooler running processor: 14 nm vs 65 nm
9.1x more L1 cache, more data can be stored in the L1 cache for quick access later
2.5x lower typical power consumption: 35 Watt vs 86 Watt

Launch date	5 August 2015 vs January 2006
Number of cores	4 vs 1
Manufacturing process technology	14 nm vs 65 nm
L1 cache	256 KB vs 28 KB
Thermal Design Power (TDP)	35 Watt vs 86 Watt

Reasons to consider the Intel Pentium 4 HT 651

Around 10% higher clock speed: 3.4 GHz vs 3.10 GHz
Around 5% higher maximum core temperature: 69.2°C vs 66°C
2x more L2 cache, more data can be stored in the L2 cache for quick access later

Maximum frequency	3.4 GHz vs 3.10 GHz
Maximum core temperature	69.2°C vs 66°C
L2 cache	2048 KB vs 1 MB

Compare benchmarks

CPU 1: Intel Core i5-6500T
CPU 2: Intel Pentium 4 HT 651

Name	Intel Core i5-6500T	Intel Pentium 4 HT 651
PassMark - Single thread mark	1777
PassMark - CPU mark	4761
Geekbench 4 - Single Core	789
Geekbench 4 - Multi-Core	2499
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	10.043
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	119.119
GFXBench 4.0 - Car Chase Offscreen (Frames)	1749
GFXBench 4.0 - Manhattan (Frames)	3591
GFXBench 4.0 - T-Rex (Frames)	6278
GFXBench 4.0 - Car Chase Offscreen (Fps)	1749
GFXBench 4.0 - Manhattan (Fps)	3591
GFXBench 4.0 - T-Rex (Fps)	6278

Compare specifications (specs)

	Intel Core i5-6500T	Intel Pentium 4 HT 651
Essentials
Architecture codename	Skylake	Cedarmill
Launch date	5 August 2015	January 2006
Launch price (MSRP)	$192
Place in performance rating	1014	not rated
Processor Number	i5-6500T	651
Series	6th Generation Intel® Core™ i5 Processors	Legacy Intel® Pentium® Processor
Status	Launched	Discontinued
Vertical segment	Desktop	Desktop
Performance
64 bit support
Base frequency	2.50 GHz	3.40 GHz
Bus Speed	8 GT/s DMI3	800 MHz FSB
L1 cache	256 KB	28 KB
L2 cache	1 MB	2048 KB
L3 cache	6 MB
Manufacturing process technology	14 nm	65 nm
Maximum core temperature	66°C	69.2°C
Maximum frequency	3.10 GHz	3.4 GHz
Number of cores	4	1
Number of threads	4
Die size		81 mm2
Transistor count		188 million
VID voltage range		1.200V-1.3375V
Memory
Max memory channels	2
Maximum memory bandwidth	34.1 GB/s
Maximum memory size	64 GB
Supported memory types	DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V	DDR1, DDR2, DDR3
Graphics
Device ID	0x1912
Graphics base frequency	350 MHz
Graphics max dynamic frequency	1.10 GHz
Graphics max frequency	1.1 GHz
Intel® Clear Video HD technology
Intel® Clear Video technology
Intel® InTru™ 3D technology
Intel® Quick Sync Video
Max video memory	64 GB
Processor graphics	Intel® HD Graphics 530
Graphics interfaces
DisplayPort
DVI
eDP
HDMI
Number of displays supported	3
Wireless Display (WiDi) support
Graphics image quality
4K resolution support
Max resolution over DisplayPort	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over HDMI 1.4	4096x2304@24Hz
Max resolution over VGA	N / A
Max resolution over WiDi	1080p
Graphics API support
DirectX	12
OpenGL	4.5
Compatibility
Low Halogen Options Available
Max number of CPUs in a configuration	1	1
Package Size	37.5mm x 37.5mm	37.5mm x 37.5mm
Sockets supported	FCLGA1151	PLGA775
Thermal Design Power (TDP)	35 Watt	86 Watt
Thermal Solution	PCG 2015A (35W)
Scenario Design Power (SDP)		0 W
Peripherals
Max number of PCIe lanes	16
PCI Express revision	3.0
PCIe configurations	Up to 1x16, 2x8, 1x8+2x4
Scalability	1S Only
Security & Reliability
Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot
Advanced Technologies
Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Intel 64
Intel® Advanced Vector Extensions (AVX)
Intel® AES New Instructions
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® TSX-NI
Intel® Turbo Boost technology
Intel® vPro™ Platform Eligibility
Thermal Monitoring
FSB parity
Intel® Demand Based Switching
Physical Address Extensions (PAE)		32-bit
Virtualization
AMD Virtualization (AMD-V™)
Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)