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GeForce GTS 250 1GB vs Radeon HD 4730

Intro

The GeForce GTS 250 1GB has a core clock speed of 738 MHz and a GDDR3 memory frequency of 1100 MHz. It also features a 256-bit bus, and uses a 65/55 nm design. It is comprised of 128 SPUs, 64 Texture Address Units, and 16 ROPs.

Compare that to the Radeon HD 4730, which comes with clock speeds of 700 MHz on the GPU, and 900 MHz on the 512 MB of GDDR5 RAM. It features 640(128x5) SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

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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 in theory be a lot better than the Radeon HD 4730 in general. (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 much (more or less 111%) more effective at anisotropic 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 resolution is important to you, then the GeForce GTS 250 1GB is a better choice, and very much so. (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

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GeForce GTS 250 1GB

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 1GB Radeon HD 4730
Manufacturer nVidia AMD
Year March 3, 2009 Jun 8, 2009
Code Name G92a/b RV770/CE
Memory 1024 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 data (measured in MB per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number 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 amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 250 1GB

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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