Opteron 6276 vs Core i7-990X

Primary details

Comparing Core i7-990X and Opteron 6276 processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1238	1335
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	1.69	1.37
Market segment	Desktop processor	Server
Architecture codename	Gulftown (2010−2011)	Interlagos (2011−2012)
Release date	24 February 2011 (13 years ago)	14 November 2011 (12 years ago)
Launch price (MSRP)	$1,104	$119
Current price	$160 (0.1x MSRP)	$308 (2.6x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

i7-990X has 23% better value for money than Opteron 6276.

Detailed specifications

Core i7-990X and Opteron 6276 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	6 (Hexa-Core)	16 (Hexadeca-Core)
Threads	12	16
Base clock speed	3.46 GHz	2.3 GHz
Boost clock speed	3.73 GHz	3.2 GHz
L1 cache	64 KB (per core)	768 KB
L2 cache	256 KB (per core)	16 MB
L3 cache	12 MB (shared)	8 MB (per die)
Chip lithography	32 nm	32 nm
Die size	239 mm2	316 mm2
Maximum core temperature	68 °C	no data
Number of transistors	1,170 million	2,400 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	Yes	No

Compatibility

Information on Core i7-990X and Opteron 6276 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	4
Socket	FCLGA1366,LGA1366	G34
Power consumption (TDP)	130 Watt	115 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-990X and Opteron 6276. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.2	no data
AES-NI	+	+
FMA	no data	+
AVX	no data	+
Enhanced SpeedStep (EIST)	+	no data
Turbo Boost Technology	1.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	-	no data
Demand Based Switching	-	no data
PAE	36 Bit	no data
Status	Discontinued	no data

Security technologies

Core i7-990X and Opteron 6276 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-990X and Opteron 6276 are enumerated here.

AMD-V	no data	+
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-990X and Opteron 6276. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3	DDR3
Maximum memory size	24 GB	no data
Max memory channels	3	no data
Maximum memory bandwidth	25.6 GB/s	no data
ECC memory support	-	no data

Peripherals

Specifications and connection of peripherals supported by Core i7-990X and Opteron 6276.

PCIe version

2.0

2.0

Synthetic benchmark performance

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

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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 i7-990X outperforms Opteron 6276 by 12% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	4.60	4.10
Recency	24 February 2011	14 November 2011
Physical cores	6	16
Threads	12	16
Cost	$1104	$119
Power consumption (TDP)	130 Watt	115 Watt

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Should you still have questions on choice between Core i7-990X and Opteron 6276, ask them in Comments section, and we shall answer.

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