GeForce GTS 450 vs Radeon R9 295X2

Intro

Compare all that to the Radeon R9 295X2, which comes with a GPU core clock speed of 1018 MHz, and 4096 MB of GDDR5 RAM running at 1250 MHz through a 512-bit bus. It also is comprised of 2816 Stream Processors, 176 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 295X2		21205 points
GeForce GTS 450		1453 points
	Difference: 19752 (1359%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
Radeon R9 295X2		500 Watts
	Difference: 394 Watts (372%)

Memory Bandwidth

Theoretically, the Radeon R9 295X2 should be a lot faster than the GeForce GTS 450 overall. (explain)

Radeon R9 295X2		640000 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 582272 (1009%)

Texel Rate

The Radeon R9 295X2 will be a lot (about 1330%) better at anisotropic filtering than the GeForce GTS 450. (explain)

Radeon R9 295X2		358336 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 333280 (1330%)

Pixel Rate

The Radeon R9 295X2 will be much (approximately 940%) better at AA than the GeForce GTS 450, and should be capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 295X2		130304 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 117776 (940%)

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

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the video 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 most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the core 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 also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.