Xeon W-2255 vs Core 2 Duo T6600

Place in the ranking	2874	515
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Server
Series	Intel Core 2 Duo	no data
Power efficiency	1.35	8.09
Architecture codename	Penryn (2008−2011)	no data
Release date	6 January 2009 (15 years ago)	1 October 2019 (5 years ago)

Detailed specifications

Core 2 Duo T6600 and Xeon W-2255 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)	10 (Deca-Core)
Threads	2	20
Base clock speed	2.2 GHz	3.7 GHz
Boost clock speed	2.2 GHz	4.7 GHz
Bus rate	800 MHz	8 GT/s
L1 cache	128 KB	no data
L2 cache	2 MB	no data
L3 cache	2 MB L2 Cache	19.25 MB
Chip lithography	45 nm	14 nm
Die size	107 mm²	no data
Maximum core temperature	90 °C	62 °C
Number of transistors	410 Million	no data
64 bit support	+	+
Windows 11 compatibility	-	+
VID voltage range	1V-1.25V	no data

Compatibility

Information on Core 2 Duo T6600 and Xeon W-2255 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	no data	1
Socket	PGA478	FCLGA2066
Power consumption (TDP)	35 Watt	165 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core 2 Duo T6600 and Xeon W-2255. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
AES-NI	-	+
Enhanced SpeedStep (EIST)	+	+
Speed Shift	no data	+
Turbo Boost Technology	-	2.0
Hyper-Threading Technology	-	+
TSX	-	+
Idle States	no data	+
Thermal Monitoring	-	+
Demand Based Switching	-	+
PAE	no data	46 Bit
Turbo Boost Max 3.0	no data	+
FSB parity	-	no data
Deep Learning Boost	-	+

Security technologies

Core 2 Duo T6600 and Xeon W-2255 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+
Secure Key	no data	+
MPX	-	+
Identity Protection	-	+
SGX	no data	-
OS Guard	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by Core 2 Duo T6600 and Xeon W-2255 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T6600 and Xeon W-2255. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	no data	DDR4-2933
Maximum memory size	no data	1 TB
Max memory channels	no data	4
Maximum memory bandwidth	no data	93.85 GB/s
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Core 2 Duo T6600 and Xeon W-2255.

PCIe version	no data	3.0
PCI Express lanes	no data	48

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.

Core 2 Duo T6600 0.52

Xeon W-2255 14.63
+2713%

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.

Core 2 Duo T6600 793

Xeon W-2255 22387
+2723%

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.

Core 2 Duo T6600 259

Xeon W-2255 1568
+505%

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.

Core 2 Duo T6600 407

Xeon W-2255 9518
+2239%

Gaming performance

Pros & cons summary

Performance score	0.52	14.63
Recency	6 January 2009	1 October 2019
Physical cores	2	10
Threads	2	20
Chip lithography	45 nm	14 nm
Power consumption (TDP)	35 Watt	165 Watt

Core 2 Duo T6600 has 371.4% lower power consumption.

Xeon W-2255, on the other hand, has a 2713.5% higher aggregate performance score, an age advantage of 10 years, 400% more physical cores and 900% more threads, and a 221.4% more advanced lithography process.

The Xeon W-2255 is our recommended choice as it beats the Core 2 Duo T6600 in performance tests.

Be aware that Core 2 Duo T6600 is a notebook processor while Xeon W-2255 is a server/workstation one.

Should you still have questions on choice between Core 2 Duo T6600 and Xeon W-2255, ask them in Comments section, and we shall answer.