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GeForce GT 240 GDDR5 vs Radeon HD 7750

Intro

The GeForce GT 240 GDDR5 has a GPU core clock speed of 550 MHz, and the 512 MB of GDDR5 RAM runs at 850 MHz through a 128-bit bus. It also features 96 Stream Processors, 32 Texture Address Units, and 8 Raster Operation Units.

Compare those specifications to the Radeon HD 7750, which makes use of a 28 nm design. AMD has set the core speed at 800 MHz. The GDDR5 memory works at a frequency of 1125 MHz on this model. It features 512 SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750 55 Watts
GeForce GT 240 GDDR5 70 Watts
Difference: 15 Watts (27%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7750 will be 32% faster than the GeForce GT 240 GDDR5 in general, because of its higher bandwidth. (explain)

Radeon HD 7750 72000 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 17600 (32%)

Texel Rate

The Radeon HD 7750 is quite a bit (more or less 45%) faster with regards to texture filtering than the GeForce GT 240 GDDR5. (explain)

Radeon HD 7750 25600 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 8000 (45%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 7750 is the winner, by far. (explain)

Radeon HD 7750 12800 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 8400 (191%)

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 HD 7750

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 HD 7750
Manufacturer nVidia AMD
Year Novermber 2009 February 2012
Code Name GT215 Cape Verde Pro
Fab Process 40 nm 28 nm
Bus PCIe x16 PCIe 3.0 x16
Memory 512 MB 1024 MB
Core Speed 550 MHz 800 MHz
Shader Speed 1360 MHz (N/A) MHz
Memory Speed 850 MHz (3400 MHz effective) 1125 MHz (4500 MHz effective)
Unified Shaders 96 512
Texture Mapping Units 32 32
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
DirectX Version DirectX 10.1 DirectX 11.1
OpenGL Version OpenGL 3.2 OpenGL 4.2
Power (Max TDP) 70 watts 55 watts
Shader Model 4.1 5.0
Bandwidth 54400 MB/sec 72000 MB/sec
Texel Rate 17600 Mtexels/sec 25600 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 12800 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred over the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to 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 bandwidth is, the lower the ability to get to the maximum fill rate.

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