AMD Ryzen 9 7945HX3D Laptop CPU Benchmarks Leak: Same Performance As 7945HX With 3D V-Cache Goodness
The latest benchmarks of AMD's Ryzen 9 7945HX3D Laptop CPU have leaked out showcasing that the 3D V-Cache chip still retains some great multi-threaded performance.
AMD Ryzen 9 7945HX3D CPU Performs The Same As 7945HX But More Efficiently & With Much Better Gaming Performance With 3D V-Cache
The AMD Ryzen 9 7945HX3D will be the first CPU for laptops that comes integrated with the 3D V-Cache technology. The chip is releasing next week on the 22nd of August but benchmarks leaked within the Geekbench database give us a reference point of what to expect from the chip besides the gaming performance. But before that, let's quickly recap the specifications.
AMD Ryzen 9 7945HX3D CPU Specifications
The AMD Ryzen 9 7945HX3D CPU comes with a 16-core and 32-thread configuration which is implemented in a dual CCD layout. Each CCD itself carries 32 MB of L3 cache for a total pool of 64 MB but one of these CCDs comes with a 3D V-cache stack of 64.0 MB which increases the total pool to 128 MB. The CPU features a base clock speed of 2.3 GHz which is 200 MHz lower than the Ryzen 9 7945HX but the boost frequency remains the same at 5.4 GHz.
Considering the minute difference in the way voltages and power are handled for the 3D V-Cache chip, a slight reduction in clock speeds was expected. Other specifications include a 55W+ TDP as this chip is ultimately an HX design and some form of tuning such as PBO and CO will be available for consumers to play around with. The standard HX chip features a TDP of 55-75W+.
AMD Ryzen 9 7945HX3D CPU Performance
The performance of the CPU was tested on the ASUS ROG Strix G733PYV (ROG STRIX SCAR 17 X3D) laptop which is the only officially announced product to feature the 3D V-Cache CPU. In Geekbench 6, the chip scores 2783 points in single-core and 16,080 points in multi-core tests which is a tad bit slower than the standard 7945HX chip but in Geekbench 5, the CPU cores 2146 points in single and 20,074 points in multi-core tests which puts it on par with its non-3D V-Cache sibling.
The first score might've been affected due to the "Performance" profile whereas the other tests used the "Turbo" profile while running the same benchmark. This is apparent from the core clock log file which reports the chip boosting up to 5.3 GHz in Geekbench 6 and up to 5.4 GHz within the Geekbench 5 benchmark.
Geekbench 6 (Higher is Better)
Geekbench 5 (Higher is Better)
The following benchmark also gives us a comparison of both the 7945HX3D & the 7945HX running on the same ASUS laptop with the same power profiles and memory configuration. You can clearly see that the X3D part is slightly ahead.
These high-end 3D V-Cache boosted Dragon Range CPUs will definitely give Intel Raptor Lake-HX and the upcoming 14th-gen refresh parts a run for their money, offering amazing gaming performance and efficient operation versus the very power-hungry chips from the blue team.
AMD Ryzen 7045 "Dragon Range" Laptop CPUs:
| CPU Name | Family | Process Node | Architecture | Cores / Threads | Base / Boost Clock | L3 Cache | iGPU | iGPU Clock | TDP |
|---|---|---|---|---|---|---|---|---|---|
| AMD Ryzen 9 7945HX3D | Dragon Range-H | 5nm | Zen 4 | 16/32 | 2.3 / 5.4 GHz | 128 MB | Radeon 610M (RDNA 2 2 CU) | 400 MHz | 55W+ |
| AMD Ryzen 9 7945HX | Dragon Range-H | 5nm | Zen 4 | 16/32 | 2.5 / 5.4 GHz | 64 MB | Radeon 610M (RDNA 2 2 CU) | 400 MHz | 55-75W+ |
| AMD Ryzen 9 7845HX | Dragon Range-H | 5nm | Zen 4 | 12/24 | 3.0 / 5.2 GHz | 64 MB | Radeon 610M (RDNA 2 2 CU) | 400 MHz | 45-75W+ |
| AMD Ryzen 7 7745HX | Dragon Range-H | 5nm | Zen 4 | 8/16 | 3.6 / 5.1 GHz | 32 MB | Radeon 610M (RDNA 2 2 CU) | 400 MHz | 45-75W+ |
| AMD Ryzen 7 7645HX | Dragon Range-H | 5nm | Zen 4 | 6/12 | 4.0 / 5.0 GHz | 32 MB | Radeon 610M (RDNA 2 2 CU) | 400 MHz | 45-75W+ |
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