GeForce GT 340 vs GeForce GTS 250 1GB

Intro

Compare that to the GeForce GTS 250 1GB, which has clock speeds of 738 MHz on the GPU, and 1100 MHz on the 1024 MB of GDDR3 RAM. It features 128 SPUs along with 64 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 340		69 Watts
GeForce GTS 250 1GB		145 Watts
	Difference: 76 Watts (110%)

Memory Bandwidth

Performance-wise, the GeForce GTS 250 1GB should theoretically be quite a bit better than the GeForce GT 340 in general. (explain)

GeForce GTS 250 1GB		70400 MB/sec
GeForce GT 340		54400 MB/sec
	Difference: 16000 (29%)

Texel Rate

The GeForce GTS 250 1GB should be quite a bit (approximately 168%) faster with regards to anisotropic filtering than the GeForce GT 340. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
GeForce GT 340		17600 Mtexels/sec
	Difference: 29632 (168%)

Pixel Rate

The GeForce GTS 250 1GB is a lot (approximately 168%) faster with regards to AA than the GeForce GT 340, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTS 250 1GB		11808 Mpixels/sec
GeForce GT 340		4400 Mpixels/sec
	Difference: 7408 (168%)

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: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transferred across the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant 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.