GeForce GTX 590 vs Radeon HD 6450 (OEM)

Intro

Compare that to the Radeon HD 6450 (OEM), which features a clock frequency of 625 MHz and a GDDR3 memory speed of 800 MHz. It also makes use of a 64-bit bus, and makes use of a 40 nm design. It is comprised of 160 SPUs, 8 TAUs, and 4 ROPs.

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 590		6680 points
Radeon HD 6450 (OEM)		340 points
	Difference: 6340 (1865%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6450 (OEM)		31 Watts
GeForce GTX 590		365 Watts
	Difference: 334 Watts (1077%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 590 should in theory be quite a bit superior to the Radeon HD 6450 (OEM) overall. (explain)

GeForce GTX 590		328320 MB/sec
Radeon HD 6450 (OEM)		12800 MB/sec
	Difference: 315520 (2465%)

Texel Rate

The GeForce GTX 590 should be quite a bit (about 1454%) more effective at texture filtering than the Radeon HD 6450 (OEM). (explain)

GeForce GTX 590		77696 Mtexels/sec
Radeon HD 6450 (OEM)		5000 Mtexels/sec
	Difference: 72696 (1454%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 590 is the winner, and very much so. (explain)

GeForce GTX 590		58272 Mpixels/sec
Radeon HD 6450 (OEM)		2500 Mpixels/sec
	Difference: 55772 (2231%)

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: Memory bandwidth is the maximum amount of information (in units of MB per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units of the card 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 maximum amount of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount 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 filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.