GeForce GT 645 OEM vs Radeon R9 M295X
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 442 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Power efficiency | 3.79 | no data |
| Architecture | GCN 3.0 (2014−2019) | Fermi 2.0 (2010−2014) |
| GPU code name | Amethyst | GF114 |
| Market segment | Laptop | Desktop |
| Release date | 23 November 2014 (11 years ago) | 24 April 2012 (13 years ago) |
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 | 2048 | 288 |
| Core clock speed | 723 MHz | 776 MHz |
| Number of transistors | 5,000 million | 1,950 million |
| Manufacturing process technology | 28 nm | 40 nm |
| Power consumption (TDP) | 250 Watt | 102 Watt |
| Texture fill rate | 92.54 | 37.25 |
| Floating-point processing power | 2.961 TFLOPS | 0.894 TFLOPS |
| ROPs | 32 | 24 |
| TMUs | 128 | 48 |
| L1 Cache | 512 KB | 384 KB |
| L2 Cache | 512 KB | 384 KB |
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 | MXM-B (3.0) | PCIe 2.0 x16 |
| Length | no data | 210 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | None | no data |
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 | Not Listed | GDDR5 |
| Maximum RAM amount | 0 MB | 1 GB |
| Memory bus width | Not Listed | 192 Bit |
| Memory clock speed | no data | 957 MHz |
| Memory bandwidth | 160.0 GB/s | 91.87 GB/s |
| Shared memory | - | - |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | No outputs | 2x DVI, 1x mini-HDMI |
| HDMI | - | + |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| FreeSync | + | - |
| HD3D | + | - |
| PowerTune | + | - |
| DualGraphics | + | - |
| ZeroCore | + | - |
| Switchable graphics | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | Not Listed | 12 (11_0) |
| Shader Model | 6.3 | 5.1 |
| OpenGL | 4.4 | 4.6 |
| OpenCL | Not Listed | 1.1 |
| Vulkan | - | N/A |
| Mantle | + | - |
| CUDA | - | 2.1 |
Pros & cons summary
| Recency | 23 November 2014 | 24 April 2012 |
| Chip lithography | 28 nm | 40 nm |
| Power consumption (TDP) | 250 Watt | 102 Watt |
R9 M295X has an age advantage of 2 years, and a 43% more advanced lithography process.
GT 645 OEM, on the other hand, has 145% lower power consumption.
We couldn't decide between Radeon R9 M295X and GeForce GT 645 OEM. We've got no test results to judge.
Be aware that Radeon R9 M295X is a notebook graphics card while GeForce GT 645 OEM is a desktop one.
Other comparisons
We selected several comparisons of graphics cards with performance close to those reviewed, providing you with more options to consider.
