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GeForce 9500 GT 1GB GDDR3 vs GeForce GT 240 GDDR5

Intro

The GeForce 9500 GT 1GB GDDR3 has a GPU core speed of 550 MHz, and the 1024 MB of GDDR3 RAM runs at 800 MHz through a 128-bit bus. It also features 32 Stream Processors, 16 TAUs, and 8 ROPs.

Compare those specifications to the GeForce GT 240 GDDR5, which features a core clock frequency of 550 MHz and a GDDR5 memory speed of 850 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is comprised of 96 SPUs, 32 TAUs, and 8 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9500 GT 1GB GDDR3 50 Watts
GeForce GT 240 GDDR5 70 Watts
Difference: 20 Watts (40%)

Memory Bandwidth

The GeForce GT 240 GDDR5 should theoretically perform quite a bit faster than the GeForce 9500 GT 1GB GDDR3 overall. (explain)

GeForce GT 240 GDDR5 54400 MB/sec
GeForce 9500 GT 1GB GDDR3 25600 MB/sec
Difference: 28800 (113%)

Texel Rate

The GeForce GT 240 GDDR5 will be quite a bit (more or less 100%) more effective at texture filtering than the GeForce 9500 GT 1GB GDDR3. (explain)

GeForce GT 240 GDDR5 17600 Mtexels/sec
GeForce 9500 GT 1GB GDDR3 8800 Mtexels/sec
Difference: 8800 (100%)

Pixel Rate

Both cards have the exact same pixel fill rate, so theoretically they should perform equally good at at anti-aliasing, and be able to handle the same resolutions. (explain)

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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce 9500 GT 1GB GDDR3

Amazon.com

Other US-based stores

GeForce GT 240 GDDR5

Amazon.com

Other US-based stores

Specifications

Model GeForce 9500 GT 1GB GDDR3 GeForce GT 240 GDDR5
Manufacturer nVidia nVidia
Year July 2008 Novermber 2009
Code Name G96b GT215
Fab Process 55 nm 40 nm
Bus PCIe x16 2.0, PCI PCIe x16
Memory 1024 MB 512 MB
Core Speed 550 MHz 550 MHz
Shader Speed 1400 MHz 1360 MHz
Memory Speed 800 MHz (1600 MHz effective) 850 MHz (3400 MHz effective)
Unified Shaders 32 96
Texture Mapping Units 16 32
Render Output Units 8 8
Bus Type GDDR3 GDDR5
Bus Width 128-bit 128-bit
DirectX Version DirectX 10 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.2
Power (Max TDP) 50 watts 70 watts
Shader Model 4.0 4.1
Bandwidth 25600 MB/sec 54400 MB/sec
Texel Rate 8800 Mtexels/sec 17600 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 4400 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per 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 higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number 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 number of colour ROPs 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 output rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.

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