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GeForce 9500 GT 1GB GDDR3 vs GeForce GT 240 GDDR5

Intro

The GeForce 9500 GT 1GB GDDR3 uses a 55 nm design. nVidia has clocked the core frequency at 550 MHz. The GDDR3 RAM is set to run at a frequency of 800 MHz on this particular model. It features 32 SPUs as well as 16 TAUs and 8 Rasterization Operator Units.

Compare that to the GeForce GT 240 GDDR5, which uses a 40 nm design. nVidia has set the core frequency at 550 MHz. The GDDR5 memory is set to run at a speed of 850 MHz on this specific model. It features 96 SPUs along with 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

Theoretically speaking, the GeForce GT 240 GDDR5 should be a lot 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 a lot (more or less 100%) better 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 rate, so theoretically they should perform equally good at at FSAA, and be able to handle the same screen 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 maximum amount of information (counted in MB per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

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