i7-975 vs Ryzen 9 7940HX

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Aggregate performance score

Ryzen 9 7940HX
2024
16 cores / 32 threads, 55 Watt
30.59
+1430%

Ryzen 9 7940HX outperforms Core i7-975 by a whopping 1430% based on our aggregate benchmark results.

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1602054
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data0.13
Market segmentLaptopDesktop processor
SeriesAMD Dragon Range (Zen 4, Ryzen 7045)Core i7 (Desktop)
Power efficiency23.510.65
DesignerAMDIntel
Manufacturerno dataIntel
Architecture codenameDragon Range-HX (Zen 4) (2023−2024)Bloomfield (2008−2010)
Release date17 January 2024 (1 year ago)2 June 2009 (16 years ago)
Launch price (MSRP)no data$476

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Performance to price scatter graph

Detailed specifications

Ryzen 9 7940HX and Core i7-975 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 cores16 (Hexadeca-Core)4 (Quad-Core)
Threads328
Base clock speed2.4 GHz3.33 GHz
Boost clock speed5.2 GHz3.6 GHz
Bus rateno data1333 MHz
L1 cache1 MB64 KB (per core)
L2 cache16 MB256 KB (per core)
L3 cache64 MB8 MB (shared)
Chip lithography5 nm45 nm
Die sizeno data263 mm2
Maximum core temperature100 °Cno data
Maximum case temperature (TCase)no data68 °C
Number of transistors9900 Million731 million
64 bit support++
Windows 11 compatibilityno data-
Unlocked multiplier-+

Compatibility

Information on Ryzen 9 7940HX and Core i7-975 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 configurationno data1
SocketFL1FCLGA1366
Power consumption (TDP)55 Watt130 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7940HX and Core i7-975. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SMEIntel® SSE4.2
AES-NI+-
FMA+-
AVX+-
Enhanced SpeedStep (EIST)no data+
Turbo Boost Technologyno data1.0
Hyper-Threading Technologyno data+
Idle Statesno data+
Demand Based Switchingno data-
PAEno data36 Bit

Security technologies

Ryzen 9 7940HX and Core i7-975 technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7940HX and Core i7-975 are enumerated here.

VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7940HX and Core i7-975. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR3
Maximum memory sizeno data24 GB
Max memory channelsno data3
Maximum memory bandwidthno data25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 610M (400 - 2200 MHz)N/A

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7940HX and Core i7-975.

PCIe versionno data2.0

Synthetic benchmark performance

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


Combined synthetic benchmark score

This is our combined benchmark performance rating.

Ryzen 9 7940HX 30.59
+1430%
i7-975 2.00

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. Other than that, Passmark measures multi-core performance.

Ryzen 9 7940HX 53754
+1428%
i7-975 3518

Gaming performance

Pros & cons summary


Performance score 30.59 2.00
Recency 17 January 2024 2 June 2009
Physical cores 16 4
Threads 32 8
Chip lithography 5 nm 45 nm
Power consumption (TDP) 55 Watt 130 Watt

Ryzen 9 7940HX has a 1429.5% higher aggregate performance score, an age advantage of 14 years, 300% more physical cores and 300% more threads, a 800% more advanced lithography process, and 136.4% lower power consumption.

The AMD Ryzen 9 7940HX is our recommended choice as it beats the Intel Core i7-975 in performance tests.

Be aware that Ryzen 9 7940HX is a notebook processor while Core i7-975 is a desktop one.

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AMD Ryzen 9 7940HX
Ryzen 9 7940HX
Intel Core i7-975
Core i7-975

Other comparisons

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.1 212 votes

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3.5 28 votes

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