Radeon RX 7900 XTX vs GeForce 8400M GS
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | not rated | 7 |
| Place by popularity | not in top-100 | 85 |
| Cost-effectiveness evaluation | no data | 28.09 |
| Architecture | Tesla (2006−2010) | RDNA 3 |
| GPU code name | G86M | Navi 31 XTX |
| Market segment | Laptop | Desktop |
| Release date | 9 May 2007 (17 years ago) | 3 November 2022 (1 year ago) |
| Launch price (MSRP) | $14.99 | $999 |
| Current price | $17.98 (1.2x MSRP) | $859 (0.9x MSRP) |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Detailed specifications
General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 16 | 6144 |
| Core clock speed | 400 MHz | no data |
| Boost clock speed | no data | 2270 MHz |
| Number of transistors | 210 million | 57,700 million |
| Manufacturing process technology | 80 nm | 5 nm |
| Power consumption (TDP) | 11 Watt | 355 Watt |
| Texture fill rate | 3.200 | 959.6 |
| Floating-point performance | 25.6 gflops | no data |
Form factor & compatibility
Information on GeForce 8400M GS and Radeon RX 7900 XTX compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility). For notebook video cards it's notebook size, connection slot and bus, if the video card is inserted into a slot instead of being soldered to the notebook motherboard.
| Interface | MXM-I | PCIe 4.0 x16 |
| Length | no data | 287 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 2x 8-pin |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR2 / GDDR3 | GDDR6 |
| Maximum RAM amount | 256 MB | 24 GB |
| Memory bus width | 64 Bit | 384 Bit |
| Memory clock speed | 600 MHz | 20000 MHz |
| Memory bandwidth | 6.4 GB/s | 960.0 GB/s |
| Shared memory | - | - |
Connectivity and outputs
Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.
| Display Connectors | No outputs | 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C |
| HDMI | no data | + |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | 11.1 (10_0) | 12 Ultimate (12_2) |
| Shader Model | 4.0 | 6.7 |
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.1 | 2.1 |
| Vulkan | N/A | 1.3 |
| CUDA | 1.1 | no data |
Synthetic benchmark performance
Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.
Passmark
This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
Benchmark coverage: 25%
Radeon RX 7900 XTX outperforms GeForce 8400M GS by 28246% in Passmark.
Pros & cons summary
| Recency | 9 May 2007 | 3 November 2022 |
| Cost | $14.99 | $999 |
| Maximum RAM amount | 256 MB | 24 GB |
| Chip lithography | 80 nm | 5 nm |
| Power consumption (TDP) | 11 Watt | 355 Watt |
We couldn't decide between GeForce 8400M GS and Radeon RX 7900 XTX. We've got no test results to judge.
Be aware that GeForce 8400M GS is a notebook card while Radeon RX 7900 XTX is a desktop one.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
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