ATI HD 4650 Features
- DirectX 10.1 support
- Shader Model 4.1
- 32-bit floating point texture filtering
- Indexed cube map arrays
- Independent blend modes per render target
- Pixel Coverage Sample masking
- Read/write multi-sample surfaces with shaders
- Gather4 texture filtering
- Unified Superscalar Shader Architecture
- 320 Stream Processing units
- 128-bit floating point precision for all operations
- Command processor for reduced CPU overhead
- Shader instruction and constant caches
- Up to 128 texture fetches per clock
- Up to 128 textures per pixel
- DXTC and 3Dc+ texture compression
- High resolution texture support (up to 8192x8192)
- Fully associative texture Z/stencil cache support
- Double-sided hierarchical Z/stencil buffer
- Early Z test and Fast Z Clear
- Lossless Z and stencil compression (up to 128:1)
- Lossless color compression (up to 8:1)
- 8 render targets (MRTs) with anti-aliasing support
- Physics processing support
- Dynamic Geometry Acceleration
- High performance vertex cache
- Programmable tessellation unit
- Accelerated geometry Shader path for geometry amplification
- Memory read/write cache for improved stream output performance
- Multi-sample anti-aliasing (2, 4 or 8 samples per pixel)
- Up to 24x Custom Filter anti-aliasing (CFAA)
- Adaptive super-sampling and multi-sampling
- Gamma correct
- Super AA (CrossfireX configurations only)
- All anti-aliasing features compatible with HDR rendering
- 2x 4x 8x 16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel)
- 128-bit floating point HDR texture filtering
- sRGB filtering
- Percentage Closer Filtering
- Depth and stencil texture format support
- Shared exponent HDR (RGBE 9:9:9:5) texture format support
- OpenGL 3.1 support
- ATI AVIVO HD Video and Display Platform
- ATI PowerPlay technology
- ATI CrossfireX Multi-GPU Technology
Gigabyte GV-R465D2-1GI Features
- AGP 8X interface
- 514 million transistors
- 1GB GDDR2 memory
- RoHS compliant
- HDMI Ready
- 600MHz core clock
- 800MHz memory clock
- 128-bit memory bus
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Brand Name | GIGABYTE
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Part Number | GV-R465D2-1GI
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Graphics Chip | RV730 Pro
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Core clock | 600MHz
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Shader Clock | 600MHz
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SPs | 320
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Fabrication Process | 55nm
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Transistors | 514 million
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Memory clock | 800MHz effective
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Memory bus | 128-bit
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Memory bandwidth | 12.8GB/second
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Memory Size | 1024MB
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ROPs | 8
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Texture Filtering Units | 32
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Texture Filtering Rate | 19.2Gigatexels/second
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HDCP Support | Yes
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HDMI Support | Yes
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Connectors | Dual Link DVI, HDMI, VGA,
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RAMDACs | 400MHz
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Bus | AGP 8x
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Power Connectors | 1x 6-pin power
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The GIGABYTE GV-R465D2-1GI card is based upon ATI's RV730 Pro chip which has 514 million transistors on TSMC's 55nm process. ATI has moved on to the 40nm process for their HD 4770 and 4730 but those are in short supply and the 40nm process won't be relevant to the desktop space until the next generation DirectX 11 cards are released. As I've covered the HD 4xxx series extensively in other reviews I'll mainly focus on AGP on the features section.
The Radeon HD 4650 has 320 Stream Processors on board, making it the mainstream of ATI's lineup but perfect for those wanting a new card for an older computer with an AGP card, which this card is targeted at as systems with AGP slots will probably not have the horsepower to run well with a HD 4890 or GeForce GTX 275. The last Intel chipset to support AGP was the Springdale 865 and Canterwood 875P chipsets of 6 years ago meaning the CPU supported was the Prescott at the latest. The last AMD chipset was the nForce 3 250.
The Accelerated Graphics Port was first introduced on the desktop PC with the i440LX Slot 1 Pentium II chip set in 1997. My first modern motherboard was a Shuttle Hot-637 motherboard which had that exact motherboard chipset back in 1998 along with a Pentium II 266 CPU and 8MB of SDRAM. The last version of the AGP interface, the AGP 8x has a dedicated 32-bit channel operating at 66MHz, with 8 data streams per clock or effectively 533MHz clock speed and 2.1GB/second bandwidth between the graphics chip and the motherboard.
The GIGABYTE card uses the AGP 8x interface, meaning that it will work on any motherboard using an AGP slot assuming the voltage is correct. The GIGABYTE card supports the 1.5V AGP slots and will not work with motherboards having a 3.3V slot. Depending on how old your system is this can make a difference in installing the GV-R465D2-1GI card into your older computer system. Of course, if your system is old enough to have a 3.3V AGP slot it's time to upgrade as the last card to use that was the GeForce FX series of 2004.
