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GeForce GTS 450 1GB vs GeForce GTX 295

Intro

The GeForce GTS 450 1GB features a core clock speed of 783 MHz and a GDDR5 memory speed of 902 MHz. It also makes use of a 128-bit memory bus, and makes use of a 40 nm design. It is made up of 192 SPUs, 32 TAUs, and 16 ROPs.

Compare those specs to the GeForce GTX 295, which has GPU core speed of 576 MHz, and 896 MB of GDDR3 RAM set to run at 999 MHz through a 448-bit bus. It also is made up of 240 Stream Processors, 80 Texture Address Units, and 28 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450 1GB 106 Watts
GeForce GTX 295 289 Watts
Difference: 183 Watts (173%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 295 should be 288% faster than the GeForce GTS 450 1GB in general, because of its higher bandwidth. (explain)

GeForce GTX 295 223776 MB/sec
GeForce GTS 450 1GB 57728 MB/sec
Difference: 166048 (288%)

Texel Rate

The GeForce GTX 295 will be much (approximately 268%) faster with regards to AF than the GeForce GTS 450 1GB. (explain)

GeForce GTX 295 92160 Mtexels/sec
GeForce GTS 450 1GB 25056 Mtexels/sec
Difference: 67104 (268%)

Pixel Rate

The GeForce GTX 295 is quite a bit (more or less 157%) more effective at FSAA than the GeForce GTS 450 1GB, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GTX 295 32256 Mpixels/sec
GeForce GTS 450 1GB 12528 Mpixels/sec
Difference: 19728 (157%)

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

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GeForce GTS 450 1GB

Amazon.com

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GeForce GTX 295

Amazon.com

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTS 450 1GB GeForce GTX 295
Manufacturer nVidia nVidia
Year September 2010 January 8, 2009
Code Name GF106 G200b
Memory 1024 MB 896 MB (x2)
Core Speed 783 MHz 576 MHz (x2)
Memory Speed 3608 MHz 1998 MHz (x2)
Power (Max TDP) 106 watts 289 watts
Bandwidth 57728 MB/sec 223776 MB/sec
Texel Rate 25056 Mtexels/sec 92160 Mtexels/sec
Pixel Rate 12528 Mpixels/sec 32256 Mpixels/sec
Unified Shaders 192 240 (x2)
Texture Mapping Units 32 80 (x2)
Render Output Units 16 28 (x2)
Bus Type GDDR5 GDDR3
Bus Width 128-bit 448-bit (x2)
Fab Process 40 nm 55 nm
Transistors 1170 million 1400 million
Bus PCIe x16 PCIe x16 2.0
DirectX Version DirectX 11 DirectX 10
OpenGL Version OpenGL 4.1 OpenGL 3.1

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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GeForce GTS 450 1GB

Amazon.com

Check prices at:

GeForce GTX 295

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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