Intel Core 2 Extreme QX9775 vs AMD Ryzen 7 PRO 7840U

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CPU comparison with benchmarks


Intel Core 2 Extreme QX9775 CPU1 vs CPU2 AMD Ryzen 7 PRO 7840U
Intel Core 2 Extreme QX9775 AMD Ryzen 7 PRO 7840U

CPU comparison

Intel Core 2 Extreme QX9775 or AMD Ryzen 7 PRO 7840U - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Core 2 Extreme QX9775 has 4 cores with 4 threads and clocks with a maximum frequency of 3.20 GHz. Up to 16 GB of memory is supported in 2 memory channels. The Intel Core 2 Extreme QX9775 was released in Q1/2008.

The AMD Ryzen 7 PRO 7840U has 8 cores with 16 threads and clocks with a maximum frequency of 5.10 GHz. The CPU supports up to 256 GB of memory in 2 memory channels. The AMD Ryzen 7 PRO 7840U was released in Q2/2023.
Intel Core2 Extreme (7) Family AMD Ryzen 7 PRO (21)
Intel Core 2 Extreme QX9000 (3) CPU group AMD Ryzen 7040 (21)
2 Generation 6
Yorkfield (Penryn) Architecture Phoenix (Zen 4)
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor AMD Ryzen 7 PRO 8840U

CPU Cores and Base Frequency

The Intel Core 2 Extreme QX9775 is a 4 core processor with a clock frequency of 3.20 GHz. The AMD Ryzen 7 PRO 7840U has 8 CPU cores with a clock frequency of 3.30 GHz (5.10 GHz).

Intel Core 2 Extreme QX9775 Characteristic AMD Ryzen 7 PRO 7840U
4 Cores 8
4 Threads 16
normal Core architecture normal
No Hyperthreading Yes
Yes Overclocking ? No
3.20 GHz Frequency 3.30 GHz
-- Turbo Frequency (1 Core) 5.10 GHz
-- Turbo Frequency (All Cores) --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core 2 Extreme QX9775 Characteristic AMD Ryzen 7 PRO 7840U
-- AI hardware AMD Ryzen AI
-- AI specifications AMD dedicated AI XDNA Technology

Internal Graphics

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

no iGPU GPU AMD Radeon 780M
GPU frequency 0.80 GHz
-- GPU (Turbo) 2.70 GHz
-- GPU Generation 3
Technology 4 nm
Max. displays 4
-- Compute units 12
-- Shader 768
No Hardware Raytracing Yes
No Frame Generation AMD FSR
-- Max. GPU Memory 32 GB
-- DirectX Version 12

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

no iGPU GPU AMD Radeon 780M
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
No Codec h264 Decode / Encode
No Codec VP9 Decode
No Codec VP8 Decode
No Codec AV1 Decode / Encode
No Codec AVC Decode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

The Intel Core 2 Extreme QX9775 supports a maximum of 16 GB of memory in 2 memory channels. The AMD Ryzen 7 PRO 7840U can connect up to 256 GB of memory in 2 memory channels.

Intel Core 2 Extreme QX9775 Characteristic AMD Ryzen 7 PRO 7840U
DDR3-1066, DDR2-800 Memory DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500
16 GB Max. Memory 256 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
17.1 GB/s Max. Bandwidth 120.0 GB/s
No ECC Yes
12.00 MB L2 Cache 8.00 MB
-- L3 Cache 16.00 MB
-- PCIe version 4.0
-- PCIe lanes 20
-- PCIe Bandwidth 39.4 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core 2 Extreme QX9775 has a TDP of 150 W, that of the AMD Ryzen 7 PRO 7840U is 28 W.

Intel Core 2 Extreme QX9775 Characteristic AMD Ryzen 7 PRO 7840U
150 W TDP (PL1 / PBP) 28 W
-- TDP (PL2) --
-- TDP up 30 W
-- TDP down 15 W
-- Tjunction max. 100 °C

Technical details

The Intel Core 2 Extreme QX9775 has a 12.00 MB cache, while the AMD Ryzen 7 PRO 7840U cache has a total of 24.00 MB.

Intel Core 2 Extreme QX9775 Characteristic AMD Ryzen 7 PRO 7840U
45 nm Technology 4 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, SSE2, SSE3, SSE4.1 ISA extensions SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
LGA 775 Socket FP8
VT-x, VT-d Virtualization AMD-V, SVM
No AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2008 Release date Q2/2023
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Core 2 Extreme QX9775 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (1 ratings). Rate now:
Here you can rate the AMD Ryzen 7 PRO 7840U to help other visitors make their purchasing decisions. The average rating is 4.9 stars (9 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core 2 Extreme QX9775 (25%)
AMD Ryzen 7 PRO 7840U (100%)
⌀ Multi core performance in 2 CPU benchmarks
Intel Core 2 Extreme QX9775 (14%)
AMD Ryzen 7 PRO 7840U (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
454 (25%)
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 5.10 GHz
1850 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
1592 (17%)
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 3.30 GHz
9612 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
2641 (11%)
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 3.30 GHz
24755 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
0 (0%)
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 5.10 GHz
1755 (100%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
0 (0%)
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 3.30 GHz
13549 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
0 (0%)
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 5.10 GHz
2446 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
0 (0%)
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 3.30 GHz
10726 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
@ 0.00 GHz
0 (0%)
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
AMD Radeon 780M @ 2.70 GHz
4201 (100%)

Performance for Artificial Intelligence (AI) and Machine Learning (ML)

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
Intel Core 2 Extreme QX9775 Intel Core 2 Extreme QX9775
4C 4T @ 3.20 GHz
0 (0%)
AMD Ryzen 7 PRO 7840U AMD Ryzen 7 PRO 7840U
8C 16T @ 3.30 GHz
10 (100%)

Devices using this processor

Intel Core 2 Extreme QX9775 AMD Ryzen 7 PRO 7840U
Unknown Unknown

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