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GeForce GT 240 GDDR5 vs Radeon R7 250

Intro

The GeForce GT 240 GDDR5 features a GPU core speed of 550 MHz, and the 512 MB of GDDR5 RAM is set to run at 850 MHz through a 128-bit bus. It also features 96 Stream Processors, 32 TAUs, and 8 Raster Operation Units.

Compare those specifications to the Radeon R7 250, which uses a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM is set to run at a frequency of 1150 MHz on this specific card. It features 384 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250 65 Watts
GeForce GT 240 GDDR5 70 Watts
Difference: 5 Watts (8%)

Memory Bandwidth

Performance-wise, the Radeon R7 250 should in theory be much superior to the GeForce GT 240 GDDR5 in general. (explain)

Radeon R7 250 73600 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 19200 (35%)

Texel Rate

The Radeon R7 250 is quite a bit (more or less 36%) better at AF than the GeForce GT 240 GDDR5. (explain)

Radeon R7 250 24000 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 6400 (36%)

Pixel Rate

The Radeon R7 250 will be a lot (about 82%) better at anti-aliasing than the GeForce GT 240 GDDR5, and also should be able to handle higher screen resolutions more effectively. (explain)

Radeon R7 250 8000 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 3600 (82%)

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

GeForce GT 240 GDDR5

Amazon.com

Radeon R7 250

Amazon.com

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

Model GeForce GT 240 GDDR5 Radeon R7 250
Manufacturer nVidia AMD
Year Novermber 2009 October 2013
Code Name GT215 Oland XT
Fab Process 40 nm 28 nm
Bus PCIe x16 PCIe 3.0 x16
Memory 512 MB 1024 MB
Core Speed 550 MHz 1000 MHz
Shader Speed 1360 MHz (N/A) MHz
Memory Speed 850 MHz (3400 MHz effective) 1150 MHz (4600 MHz effective)
Unified Shaders 96 384
Texture Mapping Units 32 24
Render Output Units 8 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.2 OpenGL 4.3
Power (Max TDP) 70 watts 65 watts
Shader Model 4.1 5.0
Bandwidth 54400 MB/sec 73600 MB/sec
Texel Rate 17600 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 8000 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be moved over the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 are processed per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. 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 memory bandwidth is, the lower the ability to get to the maximum fill rate.

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