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GeForce GT 240 GDDR5 vs Radeon HD 4750

Intro

The GeForce GT 240 GDDR5 features clock speeds of 550 MHz on the GPU, and 850 MHz on the 512 MB of GDDR5 memory. It features 96 SPUs as well as 32 TAUs and 8 ROPs.

Compare those specs to the Radeon HD 4750, which uses a 40 nm design. AMD has set the core speed at 730 MHz. The GDDR5 memory runs at a speed of 800 MHz on this particular card. It features 640(128x5) SPUs along with 32 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 70 Watts
Radeon HD 4750 75 Watts
Difference: 5 Watts (7%)

Memory Bandwidth

As far as performance goes, the GeForce GT 240 GDDR5 should in theory be a small bit better than the Radeon HD 4750 in general. (explain)

GeForce GT 240 GDDR5 54400 MB/sec
Radeon HD 4750 51200 MB/sec
Difference: 3200 (6%)

Texel Rate

The Radeon HD 4750 is a lot (more or less 33%) faster with regards to anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

Radeon HD 4750 23360 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 5760 (33%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 4750 is the winner, and very much so. (explain)

Radeon HD 4750 11680 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 7280 (165%)

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 GT 240 GDDR5

Amazon.com

Check prices at:

Radeon HD 4750

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 GT 240 GDDR5 Radeon HD 4750
Manufacturer nVidia AMD
Year Novermber 2009
Code Name GT215 RV740
Memory 512 MB 512 MB
Core Speed 550 MHz 730 MHz
Memory Speed 3400 MHz 3200 MHz
Power (Max TDP) 70 watts 75 watts
Bandwidth 54400 MB/sec 51200 MB/sec
Texel Rate 17600 Mtexels/sec 23360 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 11680 Mpixels/sec
Unified Shaders 96 640(128x5)
Texture Mapping Units 32 32
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 289 million 826 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.2 OpenGL 3.0

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

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 most pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 240 GDDR5

Amazon.com

Check prices at:

Radeon HD 4750

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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