A800 PCIe 40 GB vs Radeon R9 M275X
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in performance ranking | 657 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Architecture | GCN 1.0 (2012−2020) | Ampere (2020−2022) |
| GPU code name | Venus | GA100 |
| Market segment | Desktop | Desktop |
| Release date | 28 January 2014 (10 years ago) | 8 November 2022 (1 year ago) |
| Current price | $9.99 | 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 | 640 | 6912 |
| Compute units | 10 | no data |
| Core clock speed | 900 MHz | no data |
| Boost clock speed | 925 MHz | 1410 MHz |
| Number of transistors | 1,500 million | 54,200 million |
| Manufacturing process technology | 28 nm | 7 nm |
| Power consumption (TDP) | no data | 250 Watt |
| Texture fill rate | 37.00 | 609.1 |
| Floating-point performance | 1,184 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).
| Bus support | PCIe 3.0 x16 | no data |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Length | no data | 267 mm |
| Width | no data | 2-slot |
| Supplementary power connectors | no data | 8-pin EPS |
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 | HBM2e |
| Maximum RAM amount | 4 GB | 40 GB |
| Memory bus width | 128 Bit | 5120 Bit |
| Memory clock speed | 1125 MHz | 2.4 GB/s |
| Memory bandwidth | 72 GB/s | 1,555 GB/s |
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 | No outputs |
| Eyefinity | 1 | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| AppAcceleration | - | no data |
| Enduro | - | no data |
| FreeSync | 1 | no data |
| HD3D | + | no data |
| PowerTune | + | no data |
| DualGraphics | 1 | no data |
| TrueAudio | - | no data |
| ZeroCore | + | no data |
| Switchable graphics | 1 | no data |
API compatibility
List of supported graphics and general-purpose computing APIs, including their specific versions.
| DirectX | DirectX® 11 | N/A |
| Shader Model | 5.1 | N/A |
| OpenGL | 4.4 | N/A |
| OpenCL | Not Listed | 3.0 |
| Vulkan | no data | N/A |
| Mantle | + | no data |
| CUDA | no data | 8.0 |
Pros & cons summary
| Recency | 28 January 2014 | 8 November 2022 |
| Maximum RAM amount | 4 GB | 40 GB |
| Chip lithography | 28 nm | 7 nm |
We couldn't decide between Radeon R9 M275X and A800 PCIe 40 GB. 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
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