GeForce GTX 650 vs Radeon HD 7870

Intro

Compare all of that to the Radeon HD 7870, which has a core clock frequency of 1000 MHz and a GDDR5 memory speed of 1200 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It features 1280 SPUs, 80 Texture Address Units, and 32 ROPs.

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

Radeon HD 7870		6230 points
GeForce GTX 650		2263 points
	Difference: 3967 (175%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
Radeon HD 7870		175 Watts
	Difference: 111 Watts (173%)

Memory Bandwidth

The Radeon HD 7870 should theoretically be a lot faster than the GeForce GTX 650 overall. (explain)

Radeon HD 7870		153600 MB/sec
GeForce GTX 650		80000 MB/sec
	Difference: 73600 (92%)

Texel Rate

The Radeon HD 7870 will be quite a bit (more or less 136%) faster with regards to anisotropic filtering than the GeForce GTX 650. (explain)

Radeon HD 7870		80000 Mtexels/sec
GeForce GTX 650		33856 Mtexels/sec
	Difference: 46144 (136%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 7870 is a better choice, by far. (explain)

Radeon HD 7870		32000 Mpixels/sec
GeForce GTX 650		16928 Mpixels/sec
	Difference: 15072 (89%)

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 maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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 bandwidth is, the lower the potential to reach the maximum fill rate.