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GeForce GT 240 GDDR5 vs Radeon HD 4850 512MB

Intro

The GeForce GT 240 GDDR5 comes with a GPU core speed of 550 MHz, and the 512 MB of GDDR5 RAM runs at 850 MHz through a 128-bit bus. It also is made up of 96 SPUs, 32 TAUs, and 8 Raster Operation Units.

Compare those specs to the Radeon HD 4850 512MB, which comes with core speeds of 625 MHz on the GPU, and 993 MHz on the 512 MB of GDDR3 RAM. It features 800(160x5) 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)

GeForce GT 240 GDDR5 70 Watts
Radeon HD 4850 512MB 110 Watts
Difference: 40 Watts (57%)

Memory Bandwidth

Performance-wise, the Radeon HD 4850 512MB should in theory be a little bit superior to the GeForce GT 240 GDDR5 overall. (explain)

Radeon HD 4850 512MB 63552 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 9152 (17%)

Texel Rate

The Radeon HD 4850 512MB should be quite a bit (about 42%) better at texture filtering than the GeForce GT 240 GDDR5. (explain)

Radeon HD 4850 512MB 25000 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 7400 (42%)

Pixel Rate

The Radeon HD 4850 512MB will be a lot (about 127%) faster with regards to full screen anti-aliasing than the GeForce GT 240 GDDR5, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 4850 512MB 10000 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 5600 (127%)

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 4850 512MB

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

Display Specifications

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Model GeForce GT 240 GDDR5 Radeon HD 4850 512MB
Manufacturer nVidia AMD
Year Novermber 2009 Jun 25, 2008
Code Name GT215 RV770 PRO
Memory 512 MB 512 MB
Core Speed 550 MHz 625 MHz
Memory Speed 3400 MHz 1986 MHz
Power (Max TDP) 70 watts 110 watts
Bandwidth 54400 MB/sec 63552 MB/sec
Texel Rate 17600 Mtexels/sec 25000 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 10000 Mpixels/sec
Unified Shaders 96 800(160x5)
Texture Mapping Units 32 40
Render Output Units 8 16
Bus Type GDDR5 GDDR3
Bus Width 128-bit 256-bit
Fab Process 40 nm 55 nm
Transistors 289 million 956 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 information (counted in megabytes per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's 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 amount of texture map elements (texels) that can be applied per second. This is worked out 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on 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 reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 240 GDDR5

Amazon.com

Check prices at:

Radeon HD 4850 512MB

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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