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GeForce GT 340 1GB vs Radeon R9 M275X

Intro

The GeForce GT 340 1GB features a GPU core clock speed of 550 MHz, and the 1024 MB of GDDR5 memory runs at 850 MHz through a 128-bit bus. It also is comprised of 96 SPUs, 32 TAUs, and 8 ROPs.

Compare those specs to the Radeon R9 M275X, which has core speeds of 900 MHz on the GPU, and 1125 MHz on the 2048 MB of GDDR5 RAM. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

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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

In theory, the Radeon R9 M275X should perform much faster than the GeForce GT 340 1GB in general. (explain)

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

Texel Rate

The Radeon R9 M275X is a lot (approximately 105%) more effective at AF 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

If running with a high screen resolution is important to you, then the Radeon R9 M275X is the winner, by a large margin. (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 transferred over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, 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 number of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher the texel rate, the better the 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 most pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the card's 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 rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum 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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