GeForce 8400 GS vs Radeon R9 390X
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 222 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 10.06 | no data |
| Architecture | GCN (2011−2017) | Tesla (2006−2010) |
| GPU code name | Grenada XT | G86 |
| Market segment | Desktop | Desktop |
| Design | reference | no data |
| Release date | 16 June 2015 (9 years ago) | 17 April 2007 (17 years ago) |
| Launch price (MSRP) | $429 | $29.99 |
Cost-effectiveness evaluation
Performance to price ratio. The higher, the better.
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.
| Pipelines / CUDA cores | 2816 | 16 |
| Core clock speed | no data | 459 MHz |
| Boost clock speed | 1050 MHz | no data |
| Number of transistors | 6,200 million | 210 million |
| Manufacturing process technology | 28 nm | 80 nm |
| Power consumption (TDP) | 275 Watt | 40 Watt |
| Texture fill rate | 184.8 | 3.672 |
| Floating-point processing power | 5.914 gflops | 0.02938 gflops |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Bus support | PCIe 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 1.0 x16 |
| Length | 275 mm | 170 mm |
| Width | 2-slot | 1-slot |
| Supplementary power connectors | 1 x 6-pin, 1 x 8-pin | None |
| SLI options | - | + |
| Bridgeless CrossFire | + | - |
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 | GDDR5 | DDR2 |
| High bandwidth memory (HBM) | - | no data |
| Maximum RAM amount | 0 MB | 256 MB |
| Standard memory config per GPU | no data | 256 MB |
| Memory bus width | 512 Bit | 64 Bit |
| Memory clock speed | 1050 MHz | 800 MHz |
| Memory bandwidth | 384 GB/s | 6.4 GB/s |
| Shared memory | - | no data |
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 | 2x DVI, 1x HDMI, 1x DisplayPort | 1x DVI, 1x VGA, 1x S-Video |
| Eyefinity | + | - |
| Number of Eyefinity displays | 6 | no data |
| HDMI | + | - |
| DisplayPort support | + | - |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| CrossFire | + | - |
| FreeSync | + | - |
| PowerTune | + | - |
| TrueAudio | + | - |
| VCE | + | - |
| DDMA audio | + | no data |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX® 12 | 11.1 (10_0) |
| Shader Model | 6.3 | 4.0 |
| OpenGL | 4.6 | 2.1 |
| OpenCL | 2.0 | 1.1 |
| Vulkan | + | N/A |
| Mantle | + | - |
| CUDA | - | 1.1 |
Synthetic benchmark performance
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Passmark
This is the most ubiquitous GPU benchmark. 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.
Pros & cons summary
| Recency | 16 June 2015 | 17 April 2007 |
| Chip lithography | 28 nm | 80 nm |
| Power consumption (TDP) | 275 Watt | 40 Watt |
R9 390X has an age advantage of 8 years, and a 185.7% more advanced lithography process.
8400 GS, on the other hand, has 587.5% lower power consumption.
We couldn't decide between Radeon R9 390X and GeForce 8400 GS. We've got no test results to judge.
Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.
Comparisons with similar GPUs
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
