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GeForce GT 340 vs Radeon HD 4730

Intro

The GeForce GT 340 makes use of a 40 nm design. nVidia has set the core frequency at 550 MHz. The GDDR5 RAM runs at a speed of 850 MHz on this specific model. It features 96 SPUs as well as 32 TAUs and 8 Rasterization Operator Units.

Compare those specs to the Radeon HD 4730, which has a clock frequency of 700 MHz and a GDDR5 memory frequency of 900 MHz. It also uses a 128-bit bus, and makes use of a 55 nm design. It features 640(128x5) SPUs, 32 Texture Address Units, and 8 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 69 Watts
Radeon HD 4730 140 Watts
Difference: 71 Watts (103%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 4730 should perform just a bit faster than the GeForce GT 340 in general. (explain)

Radeon HD 4730 57600 MB/sec
GeForce GT 340 54400 MB/sec
Difference: 3200 (6%)

Texel Rate

The Radeon HD 4730 will be quite a bit (approximately 27%) faster with regards to texture filtering than the GeForce GT 340. (explain)

Radeon HD 4730 22400 Mtexels/sec
GeForce GT 340 17600 Mtexels/sec
Difference: 4800 (27%)

Pixel Rate

The Radeon HD 4730 is quite a bit (more or less 27%) more effective at anti-aliasing than the GeForce GT 340, and also will be capable of handling higher resolutions more effectively. (explain)

Radeon HD 4730 5600 Mpixels/sec
GeForce GT 340 4400 Mpixels/sec
Difference: 1200 (27%)

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 340

Amazon.com

Check prices at:

Radeon HD 4730

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 340 Radeon HD 4730
Manufacturer nVidia AMD
Year February 2010 Jun 8, 2009
Code Name GT215 RV770/CE
Memory 512 MB 512 MB
Core Speed 550 MHz 700 MHz
Memory Speed 3400 MHz 3600 MHz
Power (Max TDP) 69 watts 140 watts
Bandwidth 54400 MB/sec 57600 MB/sec
Texel Rate 17600 Mtexels/sec 22400 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 5600 Mpixels/sec
Unified Shaders 96 640(128x5)
Texture Mapping Units 32 32
Render Output Units 8 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 727 million 956 million
Bus PCIe x16 PCIe 2.0 x16
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.3 OpenGL 3.0

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in megabytes 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 DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 processed in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 340

Amazon.com

Check prices at:

Radeon HD 4730

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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