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GeForce GTS 250 512MB vs Radeon HD 7750

Intro

The GeForce GTS 250 512MB features a clock frequency of 738 MHz and a GDDR3 memory speed 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 those specs to the Radeon HD 7750, which uses a 28 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 memory runs at a speed of 1125 MHz on this model. It features 512 SPUs as well as 32 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750 55 Watts
GeForce GTS 250 512MB 145 Watts
Difference: 90 Watts (164%)

Memory Bandwidth

Theoretically, the Radeon HD 7750 should perform a little bit faster than the GeForce GTS 250 512MB in general. (explain)

Radeon HD 7750 72000 MB/sec
GeForce GTS 250 512MB 70400 MB/sec
Difference: 1600 (2%)

Texel Rate

The GeForce GTS 250 512MB will be much (approximately 85%) better at anisotropic filtering than the Radeon HD 7750. (explain)

GeForce GTS 250 512MB 47232 Mtexels/sec
Radeon HD 7750 25600 Mtexels/sec
Difference: 21632 (85%)

Pixel Rate

The Radeon HD 7750 is a little bit (more or less 8%) more effective at FSAA than the GeForce GTS 250 512MB, and also will be able to handle higher resolutions without losing too much performance. (explain)

Radeon HD 7750 12800 Mpixels/sec
GeForce GTS 250 512MB 11808 Mpixels/sec
Difference: 992 (8%)

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 7750

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 7750
Manufacturer nVidia AMD
Year March 3, 2009 February 2012
Code Name G92a/b Cape Verde Pro
Memory 512 MB 1024 MB
Core Speed 738 MHz 800 MHz
Memory Speed 2200 MHz 4500 MHz
Power (Max TDP) 145 watts 55 watts
Bandwidth 70400 MB/sec 72000 MB/sec
Texel Rate 47232 Mtexels/sec 25600 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 128 512
Texture Mapping Units 64 32
Render Output Units 16 16
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 65/55 nm 28 nm
Transistors 754 million 1500 million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.1
OpenGL Version OpenGL 3.1 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be moved over the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number 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 drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 250 512MB

Amazon.com

Check prices at:

Radeon HD 7750

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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