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GeForce GT 340 1GB vs Radeon HD 3650 512MB

Intro

The GeForce GT 340 1GB uses a 40 nm design. nVidia has clocked the core speed at 550 MHz. The GDDR5 RAM runs at a speed of 850 MHz on this card. It features 96 SPUs as well as 32 Texture Address Units and 8 ROPs.

Compare those specifications to the Radeon HD 3650 512MB, which has a core clock frequency of 725 MHz and a GDDR3 memory speed of 800 MHz. It also uses a 128-bit bus, and makes use of a 55 nm design. It is made up of 120(24x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB 69 Watts
Radeon HD 3650 512MB 78 Watts
Difference: 9 Watts (13%)

Memory Bandwidth

The GeForce GT 340 1GB should in theory perform quite a bit faster than the Radeon HD 3650 512MB overall. (explain)

GeForce GT 340 1GB 54400 MB/sec
Radeon HD 3650 512MB 25600 MB/sec
Difference: 28800 (113%)

Texel Rate

The GeForce GT 340 1GB is a lot (approximately 203%) better at anisotropic filtering than the Radeon HD 3650 512MB. (explain)

GeForce GT 340 1GB 17600 Mtexels/sec
Radeon HD 3650 512MB 5800 Mtexels/sec
Difference: 11800 (203%)

Pixel Rate

The GeForce GT 340 1GB will be much (more or less 52%) better at FSAA than the Radeon HD 3650 512MB, and should be capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce GT 340 1GB 4400 Mpixels/sec
Radeon HD 3650 512MB 2900 Mpixels/sec
Difference: 1500 (52%)

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 1GB

Amazon.com

Check prices at:

Radeon HD 3650 512MB

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 1GB Radeon HD 3650 512MB
Manufacturer nVidia AMD
Year February 2010 2008
Code Name GT215 RV635 PRO
Memory 1024 MB 512 MB
Core Speed 550 MHz 725 MHz
Memory Speed 3400 MHz 1600 MHz
Power (Max TDP) 69 watts 78 watts
Bandwidth 54400 MB/sec 25600 MB/sec
Texel Rate 17600 Mtexels/sec 5800 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 2900 Mpixels/sec
Unified Shaders 96 120(24x5)
Texture Mapping Units 32 8
Render Output Units 8 4
Bus Type GDDR5 GDDR3
Bus Width 128-bit 128-bit
Fab Process 40 nm 55 nm
Transistors 727 million (Unknown) million
Bus PCIe x16 PCIe 2.0 x16/AGP 8x
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 (measured in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant 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 max fill rate.

Display Prices

Hide Prices

GeForce GT 340 1GB

Amazon.com

Check prices at:

Radeon HD 3650 512MB

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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