AMD A10-7800 vs AMD Phenom II X4 840

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CPU comparison with benchmarks


AMD A10-7800 CPU1 vs CPU2 AMD Phenom II X4 840
AMD A10-7800 AMD Phenom II X4 840

CPU comparison

AMD A10-7800 or AMD Phenom II X4 840 - 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 AMD A10-7800 has 4 cores with 4 threads and clocks with a maximum frequency of 3.90 GHz. Up to GB of memory is supported in 2 memory channels. The AMD A10-7800 was released in Q1/2014.

The AMD Phenom II X4 840 has 4 cores with 4 threads and clocks with a maximum frequency of 3.20 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD Phenom II X4 840 was released in Q1/2011.
AMD A (112) Family AMD Phenom II (52)
AMD A10-7000 (7) CPU group AMD Phenom II - 840/850 (2)
4 Generation 5
Kaveri (Steamroller) Architecture Propus
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A10-7800 has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the AMD A10-7800 is 3.50 GHz (3.90 GHz) while the AMD Phenom II X4 840 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD Phenom II X4 840 is at 3.20 GHz.

AMD A10-7800 Characteristic AMD Phenom II X4 840
4 Cores 4
4 Threads 4
normal Core architecture normal
No Hyperthreading No
No Overclocking ? Yes
3.50 GHz Frequency 3.20 GHz
3.90 GHz Turbo Frequency (1 Core) --
3.70 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.

AMD A10-7800 Characteristic AMD Phenom II X4 840
-- AI hardware --
-- AI specifications --

Internal Graphics

The AMD A10-7800 or AMD Phenom II X4 840 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

AMD Radeon R7 - 512 (Kaveri) GPU no iGPU
0.72 GHz GPU frequency --
-- GPU (Turbo) --
6 GPU Generation --
28 nm Technology
2 Max. displays
8 Compute units --
512 Shader --
No Hardware Raytracing No
No Frame Generation No
2 GB Max. GPU Memory --
12 DirectX Version --

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.

AMD Radeon R7 - 512 (Kaveri) GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The AMD A10-7800 can use up to GB of memory in 2 memory channels. The maximum memory bandwidth is --. The AMD Phenom II X4 840 supports up to GB of memory in 2 memory channels and achieves a memory bandwidth of up to 21.3 GB/s.

AMD A10-7800 Characteristic AMD Phenom II X4 840
DDR3-1866 Memory DDR3-1333, DDR2-1066
Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
-- Max. Bandwidth 21.3 GB/s
Yes ECC No
-- L2 Cache --
4.00 MB L3 Cache 2.00 MB
3.0 PCIe version --
16 PCIe lanes --
15.8 GB/s PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the AMD A10-7800 is 65 W, while the AMD Phenom II X4 840 has a TDP of 95 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD A10-7800 Characteristic AMD Phenom II X4 840
65 W TDP (PL1 / PBP) 95 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A10-7800 is manufactured in 28 nm and has 4.00 MB cache. The AMD Phenom II X4 840 is manufactured in 45 nm and has a 2.00 MB cache.

AMD A10-7800 Characteristic AMD Phenom II X4 840
28 nm Technology 45 nm
Unknown Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 ISA extensions SSE3, SSE4a
FM2+ Socket AM3
AMD-V Virtualization AMD-V
Yes AES-NI No
Operating systems Windows 10, Linux
Q1/2014 Release date Q1/2011
-- Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks

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.
AMD A10-7800 AMD A10-7800
4C 4T @ 3.90 GHz
485 (100%)
AMD Phenom II X4 840 AMD Phenom II X4 840
4C 4T @ 3.20 GHz
412 (85%)

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.
AMD A10-7800 AMD A10-7800
4C 4T @ 3.70 GHz
1411 (96%)
AMD Phenom II X4 840 AMD Phenom II X4 840
4C 4T @ 3.20 GHz
1473 (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.
AMD A10-7800 AMD A10-7800
4C 4T @ 3.70 GHz
4442 (100%)
AMD Phenom II X4 840 AMD Phenom II X4 840
4C 4T @ 3.20 GHz
2352 (53%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 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.
AMD A10-7800 AMD A10-7800
4C 4T @ 3.90 GHz
61 (73%)
AMD Phenom II X4 840 AMD Phenom II X4 840
4C 4T @ 3.20 GHz
84 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 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.
AMD A10-7800 AMD A10-7800
4C 4T @ 3.70 GHz
239 (74%)
AMD Phenom II X4 840 AMD Phenom II X4 840
4C 4T @ 3.20 GHz
324 (100%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 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.
AMD A10-7800 AMD A10-7800
4C 4T @ 3.90 GHz
207 (100%)
AMD Phenom II X4 840 AMD Phenom II X4 840
4C 4T @ 3.20 GHz
0 (0%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 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.
AMD A10-7800 AMD A10-7800
4C 4T @ 3.70 GHz
657 (100%)
AMD Phenom II X4 840 AMD Phenom II X4 840
4C 4T @ 3.20 GHz
0 (0%)

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.
AMD A10-7800 AMD A10-7800
AMD Radeon R7 - 512 (Kaveri) @ 0.72 GHz
702 (100%)
AMD Phenom II X4 840 AMD Phenom II X4 840
@ 0.00 GHz
0 (0%)

Devices using this processor

AMD A10-7800 AMD Phenom II X4 840
Unknown Unknown

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