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ARM Cortex-M4 vs AMD Ryzen 9 9900X vs Rockchip RK2918 1.2 GHz

AMD Ryzen 9 9900X

► remove from comparison AMD Ryzen 9 9900X

The Ryzen 9 9900X is fast desktop processor of the Granite Ridge product family that sports 12 Zen 5 cores (24 threads) running at 4.4 GHz to 5.6 GHz, PCIe 5 support and a basic RDNA 2 architecture iGPU. The Ryzen was launched in June 2024, with sales slated to start some time in August.

Architecture and Features

Like Strix Point APUs, Granite Ridge processors make use of the new Zen 5 microarchitecture. However, there are no efficient cores here; all of 9900X's cores are full Zen 5 cores. Furthermore, Granite Ridge is a multi-die design with only the CPU cores produced using a fairly modern 4 nm TSMC process. Strix Point processors are a single-die design, from what we know.

According to AMD, Zen 5 delivers a 16% IPC improvement over Zen 4 thanks to branch prediction improvements and other refinements.

Elsewhere, the 9900X has 64 MB of L3 cache and 24 direct PCIe 5 lanes (3.93 GB/s throughput per lane) with up to 12 additional PCIe 4 lanes available depending on the motherboard. It supports DDR5 RAM as fast as fast as 5,600 MT/s (up to 8,000 MT/s if overclocked).

The 9900X is unlocked for overclocking. Naturally, the AM5 socket CPU fully supports Windows 11, 64-bit Windows 10 as well as many Linux distros.

Performance

If early July leaks are any indication, the CPU delivers multi-thread performance on par with the AMD Ryzen 9 7950X and the Intel Core i7-14700K. We'll update this section once we get our hands on a system powered by the 9900X.

Graphics

The Radeon 610M comes equipped with just 128 unified shaders running at up to 2,200 MHz. Its gaming performance is slated to be extremely low and only just sufficient for pre-2020 games in resolutions such as 1024x768.

Power consumption

The CPU cores are built with TSMC's N4P process for good, as of mid 2024, power efficiency. (Apple is the leader in this regard with the second-generation 3 nm process.)

The Ryzen 7's long-term TDP is 120 W. It'll probably consume at least 170 W when under heavy short-term loads. If overclocked, the power consumption figures will increase significantly.

Rockchip RK2918 1.2 GHz

► remove from comparison
ModelARM Cortex-M4AMD Ryzen 9 9900XRockchip RK2918 1.2 GHz
CodenameGranite Ridge
SeriesAMD Granite Ridge (Zen 5, AM5)
Series: Granite Ridge (Zen 5, AM5) Granite Ridge
AMD Ryzen 9 9950X3D4.3 - 5.7 GHz16 / 32 cores128 MB L3
AMD Ryzen 9 9950X4.3 - 5.7 GHz16 / 32 cores64 MB L3
AMD Ryzen 9 9900X « 4.4 - 5.6 GHz12 / 24 cores64 MB L3
AMD Ryzen 7 9700X3.8 - 5.5 GHz8 / 16 cores32 MB L3
AMD Ryzen 7 9800X3D4.7 - 5.2 GHz8 / 16 cores96 MB L3
AMD Ryzen 5 9600X3.9 - 5.4 GHz6 / 12 cores32 MB L3
Clock4400 - 5600 MHz1200 MHz
L1 Cache768 KB
L2 Cache12 MB
L3 Cache64 MB
Cores / Threads12 / 24
12 x 5.6 GHz AMD Zen 5
1 / 1
TDP120 Watt
Technology4 nm & 6 nm55 nm
max. Temp.95 °C
SocketAM5
FeaturesDDR5-5600 RAM, PCIe 5 + PCIe 4, SMT, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4AVivante GC800, DDR1-3 memory controller, hardware video en- and decoder
iGPUAMD Radeon 610M ( - 2200 MHz)Vivante GC800
Architecturex86ARM
Announced
Manufacturerwww.amd.com

Benchmarks

Performance Rating - CB R15 + R20 + 7-Zip + X265 + Blender + 3DM11 CPU - Ryzen 9 9900X
50.4 pt (84%)
Restrict / Search: Model: Max. age: years
Cinebench 2024 - Cinebench 2024 CPU Single Core
138 Points (78%)
Cinebench 2024 - Cinebench 2024 CPU Multi Core
1818 Points (34%)
Cinebench R23 - Cinebench R23 Multi Core
32172 Points (30%)
Cinebench R23 - Cinebench R23 Single Core
2253 Points (95%)
Cinebench R20 - Cinebench R20 CPU (Single Core)
885 Points (96%)
Cinebench R20 - Cinebench R20 CPU (Multi Core)
12551 Points (31%)
Cinebench R15 - Cinebench R15 CPU Multi 64 Bit
5008 Points (32%)
Cinebench R15 - Cinebench R15 CPU Single 64 Bit
353 Points (98%)
7-Zip 18.03 - 7-Zip 18.03 Multi Thread 4 runs
122724 MIPS (70%)
7-Zip 18.03 - 7-Zip 18.03 Single Thread 4 runs
8020 MIPS (95%)
HWBOT x265 Benchmark v2.2 - HWBOT x265 4k Preset
38.7 fps (68%)
Blender - Blender 3.3 Classroom CPU *
151 Seconds (2%)
Blender - Blender 2.79 BMW27 CPU *
97 Seconds (1%)
R Benchmark 2.5 - R Benchmark 2.5 *
0.3 sec (7%)
3DMark 11 - 3DM11 Performance Physics
29231 Points (72%)
3DMark - 3DMark Fire Strike Standard Physics
44322 Points (79%)
3DMark - 3DMark Time Spy CPU
15940 Points (67%)
Geekbench 6.4 - Geekbench 6.4 Single-Core
3429 Points (86%)
Geekbench 6.4 - Geekbench 6.4 Multi-Core
20380 Points (79%)
Geekbench 5.5 - Geekbench 5.1 - 5.5 64 Bit Single-Core
2544 Points (99%)
Geekbench 5.5 - Geekbench 5.1 - 5.5 64 Bit Multi-Core
21384 Points (38%)
Linpack Android / IOS - Linpack Single Thread
14.3 MFLOPS (1%)
Mozilla Kraken 1.1 - Kraken 1.1 Total Score *
383 ms (0%)
WebXPRT 4 - WebXPRT 4 Score
349 Points (96%)
WebXPRT 3 - WebXPRT 3 Score
398 Points (71%)
Quadrant Standard Edition 2.0 - Quadrant Standard 2.0 Total Score
1249 points (3%)
CrossMark - CrossMark Overall
2289 Points (86%)
Power Consumption - Prime95 Power Consumption - external Monitor *
278 Watt (48%)
Power Consumption - Cinebench R15 Multi Power Consumption - external Monitor *
274 Watt (50%)
Power Consumption - Idle Power Consumption - external Monitor *
85.1 Watt (56%)
Power Consumption - Power Efficiency - Cinebench R15 Multi external Monitor
18.3 Points per Watt (14%)

Average Benchmarks AMD Ryzen 9 9900X → 0% n=0

Average Benchmarks Rockchip RK2918 1.2 GHz → 0% n=0

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

v1.33
log 29. 05:42:24

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#15 min, max, avg, median took s +0.014s ... 0.031s

#16 return log +0s ... 0.032s

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > Benchmarks / Tech > Processor Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2023-07- 1)