GeForce GT 340 1GB vs Radeon R9 M290X

Intro

Compare all that to the Radeon R9 M290X, which comes with core clock speeds of 850 MHz on the GPU, and 1200 MHz on the 4096 MB of GDDR5 memory. It features 1280 SPUs as well as 80 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340 1GB		69 Watts
Radeon R9 M290X		100 Watts
	Difference: 31 Watts (45%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M290X should theoretically be much better than the GeForce GT 340 1GB in general. (explain)

Radeon R9 M290X		153600 MB/sec
GeForce GT 340 1GB		54400 MB/sec
	Difference: 99200 (182%)

Texel Rate

The Radeon R9 M290X will be a lot (about 286%) faster with regards to anisotropic filtering than the GeForce GT 340 1GB. (explain)

Radeon R9 M290X		68000 Mtexels/sec
GeForce GT 340 1GB		17600 Mtexels/sec
	Difference: 50400 (286%)

Pixel Rate

The Radeon R9 M290X will be a lot (more or less 518%) better at FSAA than the GeForce GT 340 1GB, and also will be capable of handling higher resolutions better. (explain)

Radeon R9 M290X		27200 Mpixels/sec
GeForce GT 340 1GB		4400 Mpixels/sec
	Difference: 22800 (518%)

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

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be moved across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.