GeForce GT 640 DDR3 vs Radeon R7 370 2G

Intro

Compare all that to the Radeon R7 370 2G, which comes with a core clock frequency of 975 MHz and a GDDR5 memory frequency of 1400 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It features 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

Display Graphs

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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 R7 370 2G		5582 points
GeForce GT 640 DDR3		1560 points
	Difference: 4022 (258%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 640 DDR3		65 Watts
Radeon R7 370 2G		110 Watts
	Difference: 45 Watts (69%)

Memory Bandwidth

Performance-wise, the Radeon R7 370 2G should in theory be a lot better than the GeForce GT 640 DDR3 in general. (explain)

Radeon R7 370 2G		179200 MB/sec
GeForce GT 640 DDR3		57024 MB/sec
	Difference: 122176 (214%)

Texel Rate

The Radeon R7 370 2G will be a lot (about 117%) more effective at texture filtering than the GeForce GT 640 DDR3. (explain)

Radeon R7 370 2G		62400 Mtexels/sec
GeForce GT 640 DDR3		28800 Mtexels/sec
	Difference: 33600 (117%)

Pixel Rate

The Radeon R7 370 2G is a lot (more or less 117%) better at AA than the GeForce GT 640 DDR3, and also able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R7 370 2G		31200 Mpixels/sec
GeForce GT 640 DDR3		14400 Mpixels/sec
	Difference: 16800 (117%)

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 information (counted in megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster 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 number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The higher 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 most pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.