GeForce GTX 470 vs GeForce GTX 650

Intro

Compare all of that to the GeForce GTX 650, which makes use of a 28 nm design. nVidia has set the core speed at 1058 MHz. The GDDR5 memory works at a speed of 1250 MHz on this particular card. It features 384 SPUs as well as 32 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

GeForce GTX 470		2937 points
GeForce GTX 650		2263 points
	Difference: 674 (30%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
GeForce GTX 470		215 Watts
	Difference: 151 Watts (236%)

Memory Bandwidth

In theory, the GeForce GTX 470 should be quite a bit faster than the GeForce GTX 650 overall. (explain)

GeForce GTX 470		133920 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 53920 (67%)

Texel Rate

The GeForce GTX 470 will be just a bit (about 0%) more effective at AF than the GeForce GTX 650. (explain)

GeForce GTX 470		33992 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 136 (0%)

Pixel Rate

The GeForce GTX 470 is much (more or less 43%) better at anti-aliasing than the GeForce GTX 650, and also capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 470		24280 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 7352 (43%)

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 information (in units of megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher 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 maximum number of pixels that the graphics 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 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 output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.