GeForce GTX 490 vs Radeon R9 M395X
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 381 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | GCN 3 (2014−2016) | Fermi (2010−2014) |
| GPU code name | Amethyst XT | GF100 |
| Market segment | Laptop | Desktop |
| Release date | 16 October 2014 (9 years ago) | no data |
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 | 2048 | 480 |
| Core clock speed | no data | 608 MHz |
| Number of transistors | 5,000 million | 3,100 million |
| Manufacturing process technology | 28 nm | 40 nm |
| Power consumption (TDP) | 250 Watt | 365 Watt |
| Texture fill rate | 92.54 | 36.48 |
| Floating-point performance | 2.961 gflops | no data |
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).
| Laptop size | large | no data |
| Bus support | PCIe 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Length | no data | 279 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | None | 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 | GDDR5 | GDDR5 |
| Maximum RAM amount | 4 GB | 1536 MB |
| Memory bus width | 256 Bit | 384 Bit |
| Memory clock speed | 1250 MHz | 3.4 GB/s |
| Memory bandwidth | 160.0 GB/s | 164.0 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 | 3x DVI, 1x mini-DisplayPort |
| Eyefinity | + | - |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| FreeSync | + | - |
| HD3D | + | - |
| PowerTune | + | - |
| DualGraphics | + | - |
| TrueAudio | + | - |
| ZeroCore | + | - |
| Switchable graphics | + | - |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX® 12 | 12 (11_0) |
| Shader Model | 6.3 | 5.1 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | Not Listed | 1.1 |
| Vulkan | - | N/A |
| Mantle | + | - |
| CUDA | - | 2.0 |
Pros & cons summary
| Maximum RAM amount | 4 GB | 1536 MB |
| Chip lithography | 28 nm | 40 nm |
| Power consumption (TDP) | 250 Watt | 365 Watt |
R9 M395X has a 166.7% higher maximum VRAM amount, a 42.9% more advanced lithography process, and 46% lower power consumption.
We couldn't decide between Radeon R9 M395X and GeForce GTX 490. We've got no test results to judge.
Be aware that Radeon R9 M395X is a notebook card while GeForce GTX 490 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
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
