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GeForce GT 240 GDDR5 vs Radeon HD 7870 XT

Intro

The GeForce GT 240 GDDR5 comes with 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 Rasterization Operator Units.

Compare those specs to the Radeon HD 7870 XT, which uses a 28 nm design. AMD has set the core speed at 925 MHz. The GDDR5 memory runs at a speed of 1500 MHz on this card. It features 1536 SPUs along with 96 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 70 Watts
Radeon HD 7870 XT 185 Watts
Difference: 115 Watts (164%)

Memory Bandwidth

In theory, the Radeon HD 7870 XT should perform much faster than the GeForce GT 240 GDDR5 in general. (explain)

Radeon HD 7870 XT 192000 MB/sec
GeForce GT 240 GDDR5 54400 MB/sec
Difference: 137600 (253%)

Texel Rate

The Radeon HD 7870 XT is quite a bit (about 405%) more effective at anisotropic filtering than the GeForce GT 240 GDDR5. (explain)

Radeon HD 7870 XT 88800 Mtexels/sec
GeForce GT 240 GDDR5 17600 Mtexels/sec
Difference: 71200 (405%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 7870 XT is a better choice, and very much so. (explain)

Radeon HD 7870 XT 29600 Mpixels/sec
GeForce GT 240 GDDR5 4400 Mpixels/sec
Difference: 25200 (573%)

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 7870 XT

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 7870 XT
Manufacturer nVidia AMD
Year Novermber 2009 November 2012
Code Name GT215 Tahiti LE
Memory 512 MB 2048 MB
Core Speed 550 MHz 925 MHz
Memory Speed 3400 MHz 6000 MHz
Power (Max TDP) 70 watts 185 watts
Bandwidth 54400 MB/sec 192000 MB/sec
Texel Rate 17600 Mtexels/sec 88800 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 29600 Mpixels/sec
Unified Shaders 96 1536
Texture Mapping Units 32 96
Render Output Units 8 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 289 million 4313 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.1
OpenGL Version OpenGL 3.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GT 240 GDDR5

Amazon.com

Check prices at:

Radeon HD 7870 XT

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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