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GeForce GTX 295 vs GeForce GTX Titan

Intro

The GeForce GTX 295 comes with a GPU core speed of 576 MHz, and the 896 MB of GDDR3 RAM is set to run at 999 MHz through a 448-bit bus. It also is comprised of 240 SPUs, 80 Texture Address Units, and 28 ROPs.

Compare that to the GeForce GTX Titan, which has GPU clock speed of 837 MHz, and 6144 MB of GDDR5 memory running at 1502 MHz through a 384-bit bus. It also is comprised of 2688 Stream Processors, 224 TAUs, and 48 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX Titan 250 Watts
GeForce GTX 295 289 Watts
Difference: 39 Watts (16%)

Memory Bandwidth

Performance-wise, the GeForce GTX Titan should theoretically be a lot better than the GeForce GTX 295 overall. (explain)

GeForce GTX Titan 288384 MB/sec
GeForce GTX 295 223776 MB/sec
Difference: 64608 (29%)

Texel Rate

The GeForce GTX Titan is a lot (more or less 103%) more effective at AF than the GeForce GTX 295. (explain)

GeForce GTX Titan 187488 Mtexels/sec
GeForce GTX 295 92160 Mtexels/sec
Difference: 95328 (103%)

Pixel Rate

The GeForce GTX Titan should be a lot (approximately 25%) more effective at AA than the GeForce GTX 295, and able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX Titan 40176 Mpixels/sec
GeForce GTX 295 32256 Mpixels/sec
Difference: 7920 (25%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

GeForce GTX 295

GeForce GTX Titan

Specifications

Display Specifications

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Model GeForce GTX 295 GeForce GTX Titan
Manufacturer nVidia nVidia
Year January 8, 2009 February 2013
Code Name G200b GK110
Memory 896 MB (x2) 6144 MB
Core Speed 576 MHz (x2) 837 MHz
Memory Speed 1998 MHz (x2) 6008 MHz
Power (Max TDP) 289 watts 250 watts
Bandwidth 223776 MB/sec 288384 MB/sec
Texel Rate 92160 Mtexels/sec 187488 Mtexels/sec
Pixel Rate 32256 Mpixels/sec 40176 Mpixels/sec
Unified Shaders 240 (x2) 2688
Texture Mapping Units 80 (x2) 224
Render Output Units 28 (x2) 48
Bus Type GDDR3 GDDR5
Bus Width 448-bit (x2) 384-bit
Fab Process 55 nm 28 nm
Transistors 1400 million 7080 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

GeForce GTX 295

GeForce GTX Titan

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