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GeForce GTS 250 512MB vs Radeon R9 M275X

Intro

The GeForce GTS 250 512MB comes with a 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 made up of 128 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Compare those specs to the Radeon R9 M275X, which makes use of a 28 nm design. AMD has clocked the core frequency at 900 MHz. The GDDR5 memory works at a frequency of 1125 MHz on this particular model. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X 50 Watts
GeForce GTS 250 512MB 145 Watts
Difference: 95 Watts (190%)

Memory Bandwidth

The Radeon R9 M275X, in theory, should perform a little bit faster than the GeForce GTS 250 512MB overall. (explain)

Radeon R9 M275X 72000 MB/sec
GeForce GTS 250 512MB 70400 MB/sec
Difference: 1600 (2%)

Texel Rate

The GeForce GTS 250 512MB should be quite a bit (approximately 31%) more effective at texture filtering than the Radeon R9 M275X. (explain)

GeForce GTS 250 512MB 47232 Mtexels/sec
Radeon R9 M275X 36000 Mtexels/sec
Difference: 11232 (31%)

Pixel Rate

The Radeon R9 M275X will be a lot (more or less 22%) faster with regards to AA than the GeForce GTS 250 512MB, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 M275X 14400 Mpixels/sec
GeForce GTS 250 512MB 11808 Mpixels/sec
Difference: 2592 (22%)

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 R9 M275X

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 R9 M275X
Manufacturer nVidia AMD
Year March 3, 2009 May 1 2014
Code Name G92a/b Venus XTX
Memory 512 MB 2048 MB
Core Speed 738 MHz 900 MHz
Memory Speed 2200 MHz 4500 MHz
Power (Max TDP) 145 watts 50 watts
Bandwidth 70400 MB/sec 72000 MB/sec
Texel Rate 47232 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 11808 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 128 640
Texture Mapping Units 64 40
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 (Unknown) million
Bus PCIe x16 2.0 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.2
OpenGL Version OpenGL 3.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the maximum amount of data (measured in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTS 250 512MB

Amazon.com

Check prices at:

Radeon R9 M275X

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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