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GeForce GTS 250 512MB vs Radeon HD 4730

Intro

The GeForce GTS 250 512MB makes use of a 65/55 nm design. nVidia has clocked the core frequency at 738 MHz. The GDDR3 memory runs at a speed of 1100 MHz on this card. It features 128 SPUs along with 64 TAUs and 16 ROPs.

Compare all that to the Radeon HD 4730, which comes with a core clock frequency of 700 MHz and a GDDR5 memory frequency of 900 MHz. It also features a 128-bit memory bus, and makes use of a 55 nm design. It is comprised of 640(128x5) SPUs, 32 TAUs, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4730 140 Watts
GeForce GTS 250 512MB 145 Watts
Difference: 5 Watts (4%)

Memory Bandwidth

Theoretically speaking, the GeForce GTS 250 512MB is 22% faster than the Radeon HD 4730 in general, due to its higher data rate. (explain)

GeForce GTS 250 512MB 70400 MB/sec
Radeon HD 4730 57600 MB/sec
Difference: 12800 (22%)

Texel Rate

The GeForce GTS 250 512MB will be much (more or less 111%) more effective at AF than the Radeon HD 4730. (explain)

GeForce GTS 250 512MB 47232 Mtexels/sec
Radeon HD 4730 22400 Mtexels/sec
Difference: 24832 (111%)

Pixel Rate

The GeForce GTS 250 512MB will be much (more or less 111%) more effective at anti-aliasing than the Radeon HD 4730, and capable of handling higher resolutions while still performing well. (explain)

GeForce GTS 250 512MB 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

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GeForce GTS 250 512MB

Amazon.com

Check prices at:

Radeon HD 4730

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTS 250 512MB Radeon HD 4730
Manufacturer nVidia AMD
Year March 3, 2009 Jun 8, 2009
Code Name G92a/b RV770/CE
Memory 512 MB 512 MB
Core Speed 738 MHz 700 MHz
Memory Speed 2200 MHz 3600 MHz
Power (Max TDP) 145 watts 140 watts
Bandwidth 70400 MB/sec 57600 MB/sec
Texel Rate 47232 Mtexels/sec 22400 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 5600 Mpixels/sec
Unified Shaders 128 640(128x5)
Texture Mapping Units 64 32
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 55 nm
Transistors 754 million 956 million
Bus PCIe x16 2.0 PCIe 2.0 x16
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.1 OpenGL 3.0

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR 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 number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 250 512MB

Amazon.com

Check prices at:

Radeon HD 4730

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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