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The Radeon 4890
Radeon 4870/4890 Comparison | | Radeon 4870 | Radeon 4890 | Manufacturing Process | 55-nm | 55-nm | # of Transistors | 956 Million | 959 Million | Clock Speed | 750MHz | 850MHz | # of Stream Processors | 800 | 800 | Compute Performance | 1.2 TeraFLOPS | 1.36 TeraFLOPS | # of Texture Units | 40 | 40 | Texture fillrate | 30 GigaTexels/sec | 34 GigaTexels/sec | # of ROPs | 16 | 16 | Pixel Fillrate | 12 Gigapixels/sec | 13.6 Gigapixels/sec | Z/Stencil | 64 | 64 | Z Fillrate | 48 GigaSamples/sec | 54.4 GigaSamples/sec | Memory Type | GDDR5 | GDDR5 | Memory Clock Speed | 900MHz | 975MHz | Memory Size | 512MB/1GB | 1GB | Memory Data Rate | 3.6 Gigabits/sec | 3.9 Gigabits/sec | Memory Bus Width | 256-bit | 256-bit | Memory Bandwidth | 115 Gigabytes/sec | 124.8 Gigabytes/sec | Max Board Power | 160W | 190W | Idle Board Power | 90W | 60W |
NVIDIA GeForce GTX 275
GeForce GTX 200 Series Comparison | | GeForce GTX 285 | GeForce GTX 280 | GeForce GTX 275 | GeForce GTX 260 (revised 216 shader) | Manufacturing Process | 55-nm | 65-nm | 55-nm | 55-nm | Core Graphics Clock Speed | 648MHz | 602MHz | 633MHz | 576MHz | Stream Processor Clock | 1,476MHz | 1,296MHz | 1,404MHz | 1,242MHz | # of Stream Processors | 240 | 240 | 240 | 216 | Memory Clock Speed | 1,242MHz (2,484MHz effective) | 1,107MHz (2,214MHz effective) | 1134MHz (2268MHz effective) | 999MHz (1,998MHz effective) | Memory Interface | 512-bit | 512-bit | 448-bit | 448-bit | Memory Bandwidth | 159GB/sec | 141.7GB/sec | 127GB/sec | 111.9GB/sec | Memory Size | 1GB | 1GB | 896MB | 896MB | ROPs | 32 | 32 | 28 | 28 | Texture Filtering Units | 80 | 80 | 80 | 72 | Texture Filtering Rate | 51.8Gigatexels/sec | 48.2Gigatexels/sec | 50.6 GigaTexels/sec | 41.5 Gigatexels/sec | Display Connectors | 2xDual-link DVI
1xHDTV-out | 2xDual-link DVI
1xHDTV-out | 2xDual-link DVI
1xHDTV-out | 2xDual-link DVI
1xHDTV-out | Power Connectors | 2x6-pin | 2x6-pin | 2x6-pin | 2x6-pin | Max Board Power | 183 Watts | 236 Watts | 219W | 182 Watts | HDMI | Yes, Via Adaptor | Yes, Via Adaptor | Yes, Via Adaptor | Yes, Via Adaptor | Audio Input for HDMI | SPDIF passthrough | SPDIF passthrough | SPDIF passthrough | SPDIF passthrough |
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