GeForce GTS 250 1GB vs Radeon HD 4730

Intro

Compare those specs to the Radeon HD 4730, which features GPU clock speed of 700 MHz, and 512 MB of GDDR5 RAM set to run at 900 MHz through a 128-bit bus. It also is comprised of 640(128x5) SPUs, 32 TAUs, and 8 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4730		140 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 5 Watts (4%)

Memory Bandwidth

As far as performance goes, the GeForce GTS 250 1GB should theoretically be quite a bit superior to the Radeon HD 4730 overall. (explain)

GeForce GTS 250 1GB		70400 MB/sec
Radeon HD 4730		57600 MB/sec
	Difference: 12800 (22%)

Texel Rate

The GeForce GTS 250 1GB is quite a bit (more or less 111%) better at texture filtering than the Radeon HD 4730. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
Radeon HD 4730		22400 Mtexels/sec
	Difference: 24832 (111%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTS 250 1GB is the winner, by far. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
Radeon HD 4730		5600 Mpixels/sec
	Difference: 6208 (111%)

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: Bandwidth is the max amount of data (in units of MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, the result should 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 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 worked out by multiplying the total amount of texture units of the card by the core 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.