GeForce GTS 450 vs Geforce GTX 670

Intro

Compare those specs to the Geforce GTX 670, which features a core clock speed of 915 MHz and a GDDR5 memory speed of 1500 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 1344 SPUs, 112 Texture Address Units, and 32 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

Geforce GTX 670		7351 points
GeForce GTS 450		1453 points
	Difference: 5898 (406%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 450		106 Watts
Geforce GTX 670		170 Watts
	Difference: 64 Watts (60%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 670 should theoretically be quite a bit better than the GeForce GTS 450 in general. (explain)

Geforce GTX 670		192000 MB/sec
GeForce GTS 450		57728 MB/sec
	Difference: 134272 (233%)

Texel Rate

The Geforce GTX 670 should be much (about 309%) better at texture filtering than the GeForce GTS 450. (explain)

Geforce GTX 670		102480 Mtexels/sec
GeForce GTS 450		25056 Mtexels/sec
	Difference: 77424 (309%)

Pixel Rate

The Geforce GTX 670 should be quite a bit (more or less 134%) better at anti-aliasing than the GeForce GTS 450, and able to handle higher resolutions better. (explain)

Geforce GTX 670		29280 Mpixels/sec
GeForce GTS 450		12528 Mpixels/sec
	Difference: 16752 (134%)

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 MB per second) that can be transferred over the external memory interface within a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. 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 are applied in one second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.