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GeForce GT 240 GDDR5 vs Radeon HD 7750

Intro

The GeForce GT 240 GDDR5 makes use of a 40 nm design. nVidia has set the core frequency at 550 MHz. The GDDR5 RAM works at a frequency of 850 MHz on this particular card. It features 96 SPUs as well as 32 Texture Address Units and 8 Rasterization Operator Units.

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

Display Graphs

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(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

In theory, the Radeon HD 7750 should be 32% quicker than the GeForce GT 240 GDDR5 overall, because of its higher data rate. (explain)

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

Texel Rate

The Radeon HD 7750 will be quite a bit (about 45%) faster with regards to anisotropic 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

The Radeon HD 7750 should be much (more or less 191%) faster with regards to anti-aliasing than the GeForce GT 240 GDDR5, and should be capable of handling higher screen resolutions better. (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

Display Prices

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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

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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 3400 MHz 4500 MHz
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 largest amount of data (in units of megabytes per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably 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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