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AMD A9-9420 vs Intel Core i7-7700K

AMD A9-9420

► remove from comparison AMD A9-9420

The AMD A9-9420 is an entry-level chip from the Stoney-Ridge APU series for notebooks (7th APU generation), which was announced mid 2016. At its launch, the A9-9420 is the fastest Stoney Ridge processor (dual-core version of Bristol Ridge) and takes over that place from the A9-9410 (-100 MHz CPU clock). It integrates two CPU cores (one Excavator module with 2 integer and on FP unit) clocked between 3 - 3.6 GHz. It also includes a Radeon R5 GPU with 192 shaders at 800 MHz as well as a single-channel DDR4-2133 memory controller, H.265 video engine and chipset with all I/O ports.

Architecture

Stoney Ridge is the successor of the Carrizo architecture and the design is almost identical. Thanks to optimized manufacturing processes and more aggressive Boost behavior, however, the clocks are a bit higher at the same power consumption. The memory controller now also supports DDR4-RAM, in this case up to 2133 MHz. Stoney Ridge is the designation for the smaller dual-core and single-core chip, while Bristol Ridge is the bigger quad-core chip with dual-channel memory controller. More technical details are available in the following articles:

Performance

Thanks to the high maximum clock of up to 3.6 GHz, the single-core performance should be pretty good. The multi-core performance on the other hand is much lower compared to the Bristol Ridge models. Compared to older Carrizo-L/Beema quad-cores, the APU should still perform pretty well. The level of performance should be similar to a Core-m3 and therefore also be sufficient for more demanding applications.

The TDP can be configured between 10-25 Watts, so there can be big performance differences under sustained workloads.

Graphics Card

The integrated Radeon R5 (Stoney Ridge) GPU has 192 active shader units (3 compute cores) clocked at up to 800 MHz. More details about the GPU are available in the linked articles above. 

Power Consumption

AMD specifies the TDP of the A9-9420 with 15 Watts, but it can be configured between 10-25 Watts. This means the CPU is a good choice for thin and light notebooks, but also 15-inch devices with better cooling capabilities.

Intel Core i7-7700K

► remove from comparison Intel i7-7700K

The Intel Core i7-7700K is a fast quad-core processor for desktops based on the Kaby Lake architecture and was announced in January 2017. It is the top model of the consumer Kaby-Lake-H series at the time of the announcement. Besides four cores including Hyper-Threading (8 threads) support running at 4.2 - 4.5 GHz, the processor is also equipped with the HD Graphics 630 GPU as well as a dual-channel memory controller (DDR3L-1600/DDR4-2400). It is manufactured in a 14nm process with FinFET transistors.

Architecture

Intel basically uses the same micro architecture compared to Skylake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.

Performance

Thanks to the 200 (base) and 300 MHz (Boost) higher clock speed, respectively, the i7-7700K is a few percent faster than the old Skylake Core i7-6700K that offers the same per-MHz performance. Therefore, it is a very fast quad-core CPU that offers sufficient performance for all tasks.

Graphics

The integrated Intel HD Graphics 630 has 24 Execution Units (similar to previous HD Graphics 530) running at 350 - 1150 MHz. The performance depends a lot on the memory configuration; it should be comparable to a dedicated Nvidia GeForce 920M in combination with fast DDR4-2133 dual-channel memory.

Contrary to Skylake, Kaby Lake now supports hardware decoding for H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The dual-core Kaby Lake processors, which were announced in January, should also support HDCP 2.2.

Power Consumption

The chip is manufactured in an improved 14nm process with FinFET transistors, which improves the efficiency slightly. Intel still specifies the TDP with 91 Watts, which is a lot more than the 45 Watts of the mobile Kaby-Lake-H CPUs.

ModelAMD A9-9420Intel Core i7-7700K
SeriesAMD Bristol RidgeIntel Kaby Lake
CodenameStoney RidgeKaby Lake
Series: Kaby Lake Kaby Lake
AMD A9-9425 compare3.1 - 3.7 GHz2 / 2 cores
AMD A9-9420e compare - 2.5 GHz2 / 2 cores
AMD A9-9420 « 3 - 3.6 GHz2 / 2 cores
AMD A9-9410 compare2.9 - 3.5 GHz2 / 2 cores
AMD A6-9225 compare2.6 - 3.1 GHz2 / 2 cores
AMD A6-9220 compare2.5 - 2.9 GHz2 / 2 cores
AMD A6-9220C compare1.8 - 2.7 GHz2 / 2 cores
AMD A6-9210 compare2.4 - 2.8 GHz2 / 2 cores
AMD A4-9120 compare2.2 - 2.5 GHz2 / 2 cores
AMD A4-9120C compare1.6 - 2.4 GHz2 / 2 cores
AMD E2-9010 compare2 - 2.2 GHz2 / 2 cores
AMD E2-9000 compare1.8 - 2.2 GHz2 / 2 cores
AMD A6-9220e compare1.6 - 2.4 GHz2 / 2 cores
Intel Core i7-7700K « 4.2 - 4.5 GHz4 / 8 cores8 MB L3
Intel Core i7-7700 compare3.6 - 4.2 GHz4 / 8 cores8 MB L3
Intel Xeon E3-1535M v6 compare3.1 - 4.2 GHz4 / 8 cores8 MB L3
Intel Core i7-7920HQ compare3.1 - 4.1 GHz4 / 8 cores8 MB L3
Intel Core i7-7700T compare2.9 - 3.8 GHz4 / 8 cores8 MB L3
Intel Core i5-7600K compare3.8 - 4.2 GHz4 / 4 cores8 MB L3
Intel Xeon E3-1505M v6 compare3 - 4 GHz4 / 8 cores8 MB L3
Intel Core i7-7820HQ compare2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-7820HK compare2.9 - 3.9 GHz4 / 8 cores8 MB L3
Intel Core i7-7700HQ compare2.8 - 3.8 GHz4 / 8 cores6 MB L3
Intel Core i5-7500 compare3.4 - 3.8 GHz4 / 4 cores6 MB L3
Intel Core i5-7440HQ compare2.8 - 3.8 GHz4 / 4 cores6 MB L3
Intel Core i7-7567U compare3.5 - 4 GHz2 / 4 cores4 MB L3
Intel Core i7-7660U compare2.5 - 4 GHz2 / 4 cores4 MB L3
Intel Core i7-7600U compare2.8 - 3.9 GHz2 / 4 cores4 MB L3
Intel Core i5-7300HQ compare2.5 - 3.5 GHz4 / 4 cores6 MB L3
Intel Core i5-7500T compare2.7 - 3.3 GHz4 / 4 cores6 MB L3
Intel Core i5-7287U compare3.3 - 3.7 GHz2 / 4 cores4 MB L3
Intel Core i7-7560U compare2.4 - 3.8 GHz2 / 4 cores4 MB L3
Intel Core i5-7267U compare3.1 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i5-7360U compare2.3 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i7-7500U compare2.7 - 3.5 GHz2 / 4 cores4 MB L3
Intel Core i5-7300U compare2.6 - 3.5 GHz2 / 4 cores3 MB L3
Intel Core i5-7260U compare2.2 - 3.4 GHz2 / 4 cores4 MB L3
Intel Core i5-7200U compare2.5 - 3.1 GHz2 / 4 cores3 MB L3
Intel Core i3-7100H compare3 GHz2 / 4 cores3 MB L3
Intel Core i3-7167U compare2.8 GHz2 / 4 cores3 MB L3
Intel Core i7-7Y75 compare1.3 - 3.6 GHz2 / 4 cores4 MB L3
Intel Core i5-7Y57 compare1.2 - 3.3 GHz2 / 4 cores4 MB L3
Intel Core i5-7Y54 compare1.2 - 3.2 GHz2 / 4 cores4 MB L3
Intel Core i3-7100U compare2.4 GHz2 / 4 cores3 MB L3
Intel Core m3-7Y32 compare1 - 3 GHz2 / 4 cores4 MB L3
Intel Pentium Gold 4415U compare2.3 GHz2 / 4 cores2 MB L3
Intel Core m3-7Y30 compare1 - 2.6 GHz2 / 4 cores4 MB L3
Intel Celeron 3965U compare2.2 GHz2 / 2 cores2 MB L3
Intel Core i3-7020U compare2.3 GHz2 / 4 cores3 MB L3
Intel Celeron 3867U compare1.8 GHz2 / 2 cores2 MB L3
Intel Celeron 3865U compare1.8 GHz2 / 2 cores2 MB L3
Intel Pentium Gold 4425Y compare1.7 GHz2 / 4 cores2 MB L3
Intel Pentium Gold 4415Y compare1.6 GHz2 / 4 cores2 MB L3
Intel Pentium Gold 4410Y compare1.5 GHz2 / 4 cores2 MB L3
Intel Celeron 3965Y compare1.5 GHz2 / 2 cores2 MB L3
Clock3000 - 3600 MHz4200 - 4500 MHz
L2 Cache1 MB1 MB
Cores / Threads2 / 24 / 8
TDP10-25 Watt91 Watt
Transistors1200 Million
Technology28 nm14 nm
Die Size124.5 mm2
max. Temp.90 °C
SocketBGAFCLGA1151
FeaturesSingle-Channel DDR4-2133, Virtualization,DDR3(L)-1600/DDR4-2400 Memory Controller, HyperThreading, AVX, AVX2, AES-NI, TSX-NI, Quick Sync, Virtualization, vPro
iGPUAMD Radeon R5 (Stoney Ridge) ( - 800 MHz)Intel HD Graphics 630 (350 - 1150 MHz)
Architecturex86x86
Announced
L1 Cache256 KB
L3 Cache8 MB
$339 U.S.

Benchmarks

Cinebench R20 - Cinebench R20 CPU (Single Core)
465 Points (52%)
Cinebench R20 - Cinebench R20 CPU (Multi Core)
2200 Points (5%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
min: 124     avg: 132     median: 134 (1%)     max: 138 Points
min: 897     avg: 940     median: 938.5 (6%)     max: 984 Points
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
min: 75     avg: 80.3     median: 81 (24%)     max: 85 Points
min: 190     avg: 192.3     median: 192.5 (58%)     max: 194 Points
Cinebench R11.5 - Cinebench R11.5 CPU Multi 64 Bit
min: 1.56     avg: 1.6     median: 1.6 (2%)     max: 1.65 Points
min: 9.78     avg: 10.4     median: 10.4 (13%)     max: 10.91 Points
Cinebench R11.5 - Cinebench R11.5 CPU Single 64 Bit
min: 0.96     avg: 1     median: 1 (25%)     max: 1 Points
min: 2.18     avg: 2.2     median: 2.2 (54%)     max: 2.2 Points
Cinebench R10 - Cinebench R10 Rend. Single (32bit)
min: 2761     avg: 2868     median: 2875 (17%)     max: 2969 Points
min: 7222     avg: 7305     median: 7304.5 (44%)     max: 7387 Points
Cinebench R10 - Cinebench R10 Rend. Multi (32bit)
min: 4627     avg: 4830     median: 4841 (4%)     max: 5022 Points
min: 28189     avg: 28903     median: 28903 (21%)     max: 29617 Points
Cinebench R10 - Cinebench R10 Rend. Multi (64bit)
100%
1 A9-9420 +
6757 Points (5%)
Cinebench R10 - Cinebench R10 Rend. Single (64bit)
100%
1 A9-9420 +
3410 Points (4%)
wPrime 2.10 - wPrime 2.0 1024m *
min: 673     avg: 710     median: 710 (8%)     max: 747 s
min: 169.8     avg: 173.1     median: 173.1 (2%)     max: 176.3 s
wPrime 2.10 - wPrime 2.0 32m *
min: 20.78     avg: 21.3     median: 21.3 (4%)     max: 21.8 s
min: 5.5     avg: 5.6     median: 5.6 (1%)     max: 5.615 s
WinRAR - WinRAR 4.0
5823 Points (9%)
X264 HD Benchmark 4.0 - x264 Pass 2
61.6 fps (22%)
X264 HD Benchmark 4.0 - x264 Pass 1
230 fps (53%)
TrueCrypt - TrueCrypt Serpent
0.1 GB/s (0%)
min: 0.54     avg: 0.5     median: 0.5 (0%)     max: 0.554 GB/s
TrueCrypt - TrueCrypt Twofish
0.2 GB/s (4%)
min: 0.919     avg: 0.9     median: 0.9 (16%)     max: 0.939 GB/s
TrueCrypt - TrueCrypt AES
1.1 GB/s (3%)
min: 5.4     avg: 5.5     median: 5.5 (14%)     max: 5.5 GB/s
3DMark 06 - CPU - 3DMark 06 - CPU
10156 Points (22%)
Super Pi mod 1.5 XS 1M - Super Pi mod 1.5 XS 1M *
min: 18     avg: 18.3     median: 18.3 (4%)     max: 18.6 s
min: 8.11     avg: 8.2     median: 8.2 (2%)     max: 8.22 s
Super Pi mod 1.5 XS 2M - Super Pi mod 1.5 XS 2M *
min: 39.16     avg: 40.5     median: 40.5 (2%)     max: 41.8 s
min: 18.3     avg: 18.4     median: 18.4 (1%)     max: 18.41 s
Super Pi Mod 1.5 XS 32M - Super Pi mod 1.5 XS 32M *
min: 824     avg: 866     median: 866 (4%)     max: 908 s
440 s (2%)
3DMark 11 - 3DM11 Performance Physics
min: 1569     avg: 1659     median: 1632 (4%)     max: 1776 Points
min: 9975     avg: 11450     median: 11813 (32%)     max: 12026 Points
3DMark - 3DMark Ice Storm Physics
19241 Points (16%)
min: 64424     avg: 65351     median: 65408 (53%)     max: 66220 Points
3DMark - 3DMark Ice Storm Extreme Physics
18148 Points (15%)
66177 Points (54%)
3DMark - 3DMark Ice Storm Unlimited Physics
min: 18866     avg: 18895     median: 18894.5 (16%)     max: 18923 Points
67714 Points (57%)
3DMark - 3DMark Cloud Gate Physics
min: 1375     avg: 1455     median: 1455 (4%)     max: 1535 Points
min: 9230     avg: 9587     median: 9558 (24%)     max: 9974 Points
3DMark - 3DMark Fire Strike Standard Physics
min: 2153     avg: 2155     median: 2155 (4%)     max: 2157 Points
min: 13137     avg: 13702     median: 13672.5 (24%)     max: 14325 Points
3DMark - 3DMark Time Spy CPU
min: 5276     avg: 5383     median: 5383 (23%)     max: 5490 Points
Geekbench 4.0 - Geekbench 4.0 64 Bit Single-Core
5480 Points (75%)
Geekbench 4.0 - Geekbench 4.0 64 Bit Multi-Core
17800 Points (43%)
Geekbench 3 - Geekbench 3 64 Bit Multi-Core
18800 Points (29%)
Geekbench 3 - Geekbench 3 64 Bit Single-Core
4700 Points (70%)
Geekbench 2 - 32 Bit - Geekbench Stream
12169 Points (98%)
Geekbench 2 - 32 Bit - Geekbench Memory
10472 Points (95%)
Geekbench 2 - 32 Bit - Geekbench Floating Point
17576 Points (34%)
Geekbench 2 - 32 Bit - Geekbench Integer
17183 Points (35%)
Geekbench 2 - 32 Bit - Geekbench Total Score
15476 Points (40%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
2120 ms (2%)
769 ms (1%)
Sunspider - Sunspider 1.0 Total Score *
148.1 ms (2%)
52 ms (1%)
Octane V2 - Octane V2 Total Score
100%
1 A9-9420 +
min: 15762     avg: 17290     median: 17290 (16%)     max: 18818 Points
Power Consumption - Prime95 Power Consumption - external Monitor *
145 Watt (25%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
127 Watt (23%)
Power Consumption - Cinebench R15 Multi Power Efficiency - external Monitor
7.8 Points per Watt (6%)

Average Benchmarks AMD A9-9420 → 100% n=22

Average Benchmarks Intel Core i7-7700K → 354% n=22

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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v1.27
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#11 min, max, avg, median took s +0.271s ... 0.352s

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Redaktion, 2017-09- 8 (Update: 2023-07- 1)