VisionTek Radeon HD 4770 GPU
VisionTek Radeon HD 4770 (part number 900279) is a desktop graphics processing unit, based on ATI Radeon HD 4770. The GPU boasts Unified Superscalar Shader architecture, and it is built on 40 nm manufacturing process. The card has graphics clocked at 750 MHz. Furthermore, it has 640 stream processors, 16 color ROPs, as well as 32 texture units. The Radeon HD 4770 has 512 MB of GDDR5 memory. Since the memory runs at 800 MHz, and uses 128 bit bus, the effective memory bandwidth is 51.2 GB/s. The GPU has PCI Express 2.0 interface, and needs 2 slots on the motherboard. Like the reference design, this model has the maximum power consumption of 80 Watt.
Below you will find detailed specifications of the card.
Graphics card specifications
Name / Brand / Architecture | |
| Manufacturer: | VisionTek |
| Model: | Radeon HD 4770 |
| Part number: | 900279 |
| Based on: | ATI Radeon HD 4770 [Compare] |
| Target market segment: | Desktop |
| Die name: | |
| Architecture: | |
| Fabrication process: | |
| Transistors: | |
| Bus interface: | |
Frequency | |
| Graphics clock: | 750 MHz |
Memory specifications | |
| Memory size: | 512 MB |
| Memory type: | GDDR5 |
| Memory clock: | |
| Memory clock (effective): | |
| Memory interface width: | |
| Memory bandwidth: | |
Cores / Texture | |
| Color ROPs: | |
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| Texture units: | |
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SLI / Crossfire | |
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Electric characteristics | |
| Maximum power draw: | |
Video features | |
| Multi-monitor: | |
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| Anti-Aliasing technologies: | |
| HDMI: | |
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Performance | |
| Pixel fill rate: | |
| Texture fill rate: | |
| Single presision compute power: | |
| Double precision compute power: | |
External connectors | |
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| Power connectors: | |
| Audio input for HDMI: | |
Dimensions | |
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Other features / Support | |
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| Shader model: | |
| Windows driver support: | |
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The table above shows only differences between related graphics cards. The following characteristics are identical
for all GPUs:
· Graphics clock: 750 MHz
· Memory type: GDDR5
· Memory clock (effective): 3200 MHz
· Memory interface width: 128-bit
· Memory type: GDDR5
· Memory clock (effective): 3200 MHz
· Memory interface width: 128-bit
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