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GeForce GT 340 1GB vs Radeon R9 M275X

Intro

The GeForce GT 340 1GB comes with a clock speed of 550 MHz and a GDDR5 memory frequency of 850 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It is made up of 96 SPUs, 32 Texture Address Units, and 8 ROPs.

Compare that to the Radeon R9 M275X, which features a clock frequency of 900 MHz and a GDDR5 memory frequency of 1125 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M275X 50 Watts
GeForce GT 340 1GB 69 Watts
Difference: 19 Watts (38%)

Memory Bandwidth

The Radeon R9 M275X, in theory, should be quite a bit faster than the GeForce GT 340 1GB overall. (explain)

Radeon R9 M275X 72000 MB/sec
GeForce GT 340 1GB 54400 MB/sec
Difference: 17600 (32%)

Texel Rate

The Radeon R9 M275X is much (approximately 105%) more effective at anisotropic filtering than the GeForce GT 340 1GB. (explain)

Radeon R9 M275X 36000 Mtexels/sec
GeForce GT 340 1GB 17600 Mtexels/sec
Difference: 18400 (105%)

Pixel Rate

The Radeon R9 M275X is quite a bit (more or less 227%) better at anti-aliasing than the GeForce GT 340 1GB, and also should be capable of handling higher resolutions while still performing well. (explain)

Radeon R9 M275X 14400 Mpixels/sec
GeForce GT 340 1GB 4400 Mpixels/sec
Difference: 10000 (227%)

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 R9 M275X

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 R9 M275X
Manufacturer nVidia AMD
Year February 2010 May 1 2014
Code Name GT215 Venus XTX
Memory 1024 MB 2048 MB
Core Speed 550 MHz 900 MHz
Memory Speed 3400 MHz 4500 MHz
Power (Max TDP) 69 watts 50 watts
Bandwidth 54400 MB/sec 72000 MB/sec
Texel Rate 17600 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 96 640
Texture Mapping Units 32 40
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 727 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the 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 R9 M275X

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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