The folks at AnandTech have posted the world's first independent benchmarks of NVIDIA's new SLI graphics card teaming technology. They test a pair of GeForce 6600 GTs and a pair of GeForce 6800 GT, plus single-card configs of the same. Generally, a single 6800 GT outruns a pair of 6600 GTs, but it's close.
Update: Since the new-look SLI first hit the scene, some folks have been kicking about odd ideas about SLI's likely impact, talking about an expected 50% performance gain or the like. Truth is, SLI ought to deliver a 100% performance gain fairly often, so long as performance isn't limited by the host system or CPU. This is not like SMP with microprocessors, where the general impact of adding a second CPU isn't so powerful. Graphics is an inherently parallelizable task, and even dual processors get nearly twice the performance in rendering.
At high resolutions with lots of edge and texture antialiasing, where fill rate is king, dual-GPU solutions should really shine, because dual-card SLI offers 2X the fill rate, pixel shading power, and memory bandwidth of a single-card setup. The secondary impact of SLI is twice the vertex shader power, for double the polygon throughput. Because vertex processing is decoupled from the rest of the pixel pipeline, the additional vertex shader power can help even at low resolutions. SLI won't deliver twice the performance in older games or if the user doesn't crank up the eye candy, but when polygon throughput or pixel-pushing power becomes the issue, a dual-card config can be twice as good.
|AMD drops prices on the Radeon RX 460 and RX 470||39|
|Reports: Radeon RX 470D is a budget Polaris card for China||8|
|Examining reports of slow write speeds on the 32GB iPhone 7||25|
|Cellular Insights dissects iPhone 7 Plus modem performance||11|
|Deals of the week: scads of high-performance storage and more||9|
|Tobii's Eye Tracker 4C knows where your head is||2|
|GeForce driver 375.57 is prepared for Titanfall 2||7|
|Phanteks Eclipse P400 gets a tempered glass option||0|
|Radeon 16.10.2 drivers add support for October's big games||10|
|A real "console monitor" would be 720p @ 30 Hz ;P||+62|