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GeForce GT 240 GDDR5 vs Radeon HD 5750 512MB

Intro

The GeForce GT 240 GDDR5 has core clock speeds of 550 MHz on the GPU, and 850 MHz on the 512 MB of GDDR5 RAM. It features 96 SPUs along with 32 TAUs and 8 ROPs.

Compare those specs to the Radeon HD 5750 512MB, which makes use of a 40 nm design. AMD has clocked the core speed at 700 MHz. The GDDR5 RAM works at a frequency of 1150 MHz on this model. It features 720(144x5) SPUs as well as 36 Texture Address Units and 16 Rasterization Operator Units.

(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

Theoretically speaking, the Radeon HD 5750 512MB should perform quite a bit faster than 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 should be quite a bit (about 43%) faster with regards to AF 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 a lot (approximately 155%) better at AA than the GeForce GT 240 GDDR5, and will be able to handle higher resolutions without losing too much performance. (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: Bandwidth is the max amount of information (measured in MB per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

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