PRO A8-8650B vs i7-975

VS

Aggregate performance score

Core i7-975
2009
4 cores / 8 threads, 130 Watt
2.20
+8.9%
PRO A8-8650B
2015
4 cores / 4 threads, 65 Watt
2.02

Core i7-975 outperforms PRO A8-8650B by a small 9% based on our aggregate benchmark results.

Primary details

Comparing Core i7-975 and PRO A8-8650B processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking18481925
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation0.13no data
Market segmentDesktop processorDesktop processor
SeriesCore i7 (Desktop)no data
Power efficiency1.602.94
Architecture codenameBloomfield (2008−2010)Godaveri (2014−2016)
Release date2 June 2009 (15 years ago)29 September 2015 (9 years ago)
Launch price (MSRP)$476no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i7-975 and PRO A8-8650B 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 cores4 (Quad-Core)4 (Quad-Core)
Threads84
Base clock speed3.33 GHz3.2 GHz
Boost clock speed3.6 GHz3.9 GHz
Bus rate1333 MHzno data
L1 cache64 KB (per core)no data
L2 cache256 KB (per core)4096 KB
L3 cache8 MB (shared)no data
Chip lithography45 nm28 nm
Die size263 mm2245 mm2
Maximum core temperatureno data71 °C
Maximum case temperature (TCase)68 °C72 °C
Number of transistors731 million2,411 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier+-

Compatibility

Information on Core i7-975 and PRO A8-8650B 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 configuration11
SocketFCLGA1366FM2+
Power consumption (TDP)130 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-975 and PRO A8-8650B. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.2no data
AES-NI-+
FMA-+
AVX-+
FRTC-+
FreeSync-+
PowerTune-+
DualGraphics-+
TrueAudio-+
PowerNow-+
PowerGating-+
Out-of-band client management-+
VirusProtect-+
RAID-+
HSA-+
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology1.0no data
Hyper-Threading Technology+no data
Idle States+no data
Demand Based Switching-no data
PAE36 Bitno data

Security technologies

Core i7-975 and PRO A8-8650B 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 i7-975 and PRO A8-8650B are enumerated here.

AMD-V-+
VT-x+no data
EPT+no data
IOMMU 2.0-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-975 and PRO A8-8650B. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3-2133
Maximum memory size24 GBno data
Max memory channels32
Maximum memory bandwidth25.6 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AAMD Radeon R7 Graphics
iGPU core countno data6
จำนวนพาธไลน์no data384
Enduro-+
Switchable graphics-+
UVD-+
VCE-+

Graphics interfaces

Available interfaces and connections of Core i7-975 and PRO A8-8650B integrated GPUs.

DisplayPort-+
HDMI-+

Graphics API support

APIs supported by Core i7-975 and PRO A8-8650B integrated GPUs, sometimes API versions are included.

DirectXno dataDirectX® 12
Vulkan-+

Peripherals

Specifications and connection of peripherals supported by Core i7-975 and PRO A8-8650B.

PCIe version2.03.0
PCI Express lanesno data16

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.

i7-975 2.20
+8.9%
PRO A8-8650B 2.02

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.

i7-975 3493
+8.7%
PRO A8-8650B 3212

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.

i7-975 539
+22.5%
PRO A8-8650B 440

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.

i7-975 1884
+81.2%
PRO A8-8650B 1040

Gaming performance

Pros & cons summary


Performance score 2.20 2.02
Recency 2 June 2009 29 September 2015
Threads 8 4
Chip lithography 45 nm 28 nm
Power consumption (TDP) 130 Watt 65 Watt

i7-975 has a 8.9% higher aggregate performance score, and 100% more threads.

PRO A8-8650B, on the other hand, has an age advantage of 6 years, a 60.7% more advanced lithography process, and 100% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core i7-975 and PRO A8-8650B.


Should you still have questions on choice between Core i7-975 and PRO A8-8650B, ask them in Comments section, and we shall answer.

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Intel Core i7-975
Core i7-975
AMD PRO A8-8650B
PRO A8-8650B

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Community ratings

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Questions & comments

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