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GeForce GT 340 vs Radeon R7 250

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 frequency of 850 MHz on this specific card. It features 96 SPUs as well as 32 Texture Address Units and 8 ROPs.

Compare those specifications to the Radeon R7 250, which has a clock speed of 1000 MHz and a GDDR5 memory speed of 1150 MHz. It also features a 128-bit memory bus, and makes use of a 28 nm design. It features 384 SPUs, 24 Texture Address Units, and 8 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250 65 Watts
GeForce GT 340 69 Watts
Difference: 4 Watts (6%)

Memory Bandwidth

Theoretically speaking, the Radeon R7 250 will be 35% faster than the GeForce GT 340 overall, because of its greater bandwidth. (explain)

Radeon R7 250 73600 MB/sec
GeForce GT 340 54400 MB/sec
Difference: 19200 (35%)

Texel Rate

The Radeon R7 250 is a lot (approximately 36%) more effective at anisotropic filtering than the GeForce GT 340. (explain)

Radeon R7 250 24000 Mtexels/sec
GeForce GT 340 17600 Mtexels/sec
Difference: 6400 (36%)

Pixel Rate

The Radeon R7 250 should be a lot (about 82%) more effective at anti-aliasing than the GeForce GT 340, and should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R7 250 8000 Mpixels/sec
GeForce GT 340 4400 Mpixels/sec
Difference: 3600 (82%)

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 R7 250

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 R7 250
Manufacturer nVidia AMD
Year February 2010 October 2013
Code Name GT215 Oland XT
Memory 512 MB 1024 MB
Core Speed 550 MHz 1000 MHz
Memory Speed 3400 MHz 4600 MHz
Power (Max TDP) 69 watts 65 watts
Bandwidth 54400 MB/sec 73600 MB/sec
Texel Rate 17600 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 4400 Mpixels/sec 8000 Mpixels/sec
Unified Shaders 96 384
Texture Mapping Units 32 24
Render Output Units 8 8
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 727 million 1040 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 (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

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

Display Prices

Hide Prices

GeForce GT 340

Amazon.com

Check prices at:

Radeon R7 250

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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