GeForce GTS 450 vs Radeon HD 7950

Intro

Compare those specifications to the Radeon HD 7950, which makes use of a 28 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM is set to run at a speed of 1250 MHz on this particular card. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator 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 HD 7950		7731 points
GeForce GTS 450		1453 points
	Difference: 6278 (432%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
Radeon HD 7950		200 Watts
	Difference: 94 Watts (89%)

Memory Bandwidth

The Radeon HD 7950 should theoretically perform a lot faster than the GeForce GTS 450 in general. (explain)

Radeon HD 7950		240000 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 182272 (316%)

Texel Rate

The Radeon HD 7950 should be much (about 258%) faster with regards to texture filtering than the GeForce GTS 450. (explain)

Radeon HD 7950		89600 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 64544 (258%)

Pixel Rate

The Radeon HD 7950 will be much (about 104%) faster with regards to anti-aliasing than the GeForce GTS 450, and also should be able to handle higher resolutions more effectively. (explain)

Radeon HD 7950		25600 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 13072 (104%)

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.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, 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 maximum amount of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines 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 output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.