Radeon HD 7970 vs Radeon R7 240

Intro

Compare those specifications to the Radeon R7 240, which features a core clock speed of 730 MHz and a DDR3 memory frequency of 900 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is comprised of 320 SPUs, 20 Texture Address Units, and 8 Raster Operation 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

Radeon HD 7970		8225 points
Radeon R7 240		1218 points
	Difference: 7007 (575%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon HD 7970		250 Watts
	Difference: 220 Watts (733%)

Memory Bandwidth

Theoretically, the Radeon HD 7970 should be much faster than the Radeon R7 240 overall. (explain)

Radeon HD 7970		264000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 235200 (817%)

Texel Rate

The Radeon HD 7970 is quite a bit (about 711%) faster with regards to AF than the Radeon R7 240. (explain)

Radeon HD 7970		118400 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 103800 (711%)

Pixel Rate

The Radeon HD 7970 is quite a bit (about 407%) faster with regards to FSAA than the Radeon R7 240, and will be capable of handling higher resolutions more effectively. (explain)

Radeon HD 7970		29600 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 23760 (407%)

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 (in units of MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.