PowerColor HD3450 GDDR2 256 MB DDR2, 600 MHz, 666 MHz x 2, 64 bit, PCIe 2.0

181 million transistors on 55nm fabrication process
PCI Express 2.0 x16 bus interface
64-bit DDR2/GDDR3 memory interface
Ring Bus Memory Controller
MicrosoftR DirectXR 10.1 support
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 fetching
40 stream processing units
Dynamic load balancing and resource allocation for vertex, geometry, and pixel shaders
Common instruction set and texture unit access supported for all types of shaders
Dedicated branch execution units and texture address processors
128-bit floating point precision for all operations
Command processor for reduced CPU overhead
Shader instruction and constant caches
Up to 16 texture fetches per clock cycle
Up to 128 textures per pixel
Fully associative multi-level texture cache design
High resolution texture support (up to 8192 x 8192)
Fully associative texture & Z/stencil cache designs
Early Z test, Re-Z, Z Range optimization, and Fast Z Clear
Lossless Z & stencil compression
8 render targets (MRTs) with anti-aliasing support
Physics processing support
Dynamic Geometry Acceleration
Programmable tessellation unit
Accelerated geometry shader path for geometry amplification
Memory read/write cache for improved stream output performance
Anti-aliasing features
Multi-sample anti-aliasing (2 or 4 samples per pixel)
Custom Filter Anti-Aliasing (CFAA) for improved quality
Adaptive super-sampling and multi-sampling
Temporal anti-aliasing
Gamma correct
Super AA (ATI CrossFire? configurations only)
2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel)
128-bit floating point HDR texture filtering
Bicubic filtering
sRGB filtering (gamma/degamma)
Percentage Closer Filtering (PCF)
Depth & stencil texture (DST) format support
Shared exponent HDR (RGBE 9:9:9:5) texture format support
Color space conversion
Chroma subsampling format conversion
Horizontal and vertical scaling
Gamma correction
Advanced vector adaptive per-pixel de-interlacing
De-blocking and noise reduction filtering
Detail enhancement
Inverse telecine (2:2 and 3:2 pull-down correction)
Bad edit correction