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GeForce GT 240 GDDR5 vs Radeon HD 5750 512MB

Intro

The GeForce GT 240 GDDR5 features a GPU core speed of 550 MHz, and the 512 MB of GDDR5 memory runs at 850 MHz through a 128-bit bus. It also is made up of 96 Stream Processors, 32 Texture Address Units, and 8 ROPs.

Compare those specifications to the Radeon HD 5750 512MB, which has a clock frequency of 700 MHz and a GDDR5 memory frequency of 1150 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It features 720(144x5) SPUs, 36 Texture Address Units, and 16 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 70 Watts
Radeon HD 5750 512MB 86 Watts
Difference: 16 Watts (23%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5750 512MB should theoretically be a lot superior to the GeForce GT 240 GDDR5 overall. (explain)

Radeon HD 5750 512MB 73600 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 19200 (35%)

Texel Rate

The Radeon HD 5750 512MB will be a lot (approximately 43%) more effective at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

Radeon HD 5750 512MB 25200 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 7600 (43%)

Pixel Rate

The Radeon HD 5750 512MB should be quite a bit (more or less 155%) faster with regards to AA than the GeForce GT 240 GDDR5, and capable of handling higher screen resolutions better. (explain)

Radeon HD 5750 512MB 11200 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 6800 (155%)

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 5750 512MB

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 5750 512MB
Manufacturer nVidia AMD
Year Novermber 2009 October 13, 2009
Code Name GT215 Juniper LE
Fab Process 40 nm 40 nm
Bus PCIe x16 PCIe 2.1 x16
Memory 512 MB 512 MB
Core Speed 550 MHz 700 MHz
Shader Speed 1360 MHz (N/A) MHz
Memory Speed 850 MHz (3400 MHz effective) 1150 MHz (4600 MHz effective)
Unified Shaders 96 720(144x5)
Texture Mapping Units 32 36
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 3.2
Power (Max TDP) 70 watts 86 watts
Shader Model 4.1 5.0
Bandwidth 54400 MB/sec 73600 MB/sec
Texel Rate 17600 Mtexels/sec 25200 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 11200 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR memory, the result should 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 AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, especially 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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