GeForce GT 640 DDR3 vs Radeon R7 370 2G

Intro

Compare those specs to the Radeon R7 370 2G, which features a clock speed of 975 MHz and a GDDR5 memory speed of 1400 MHz. It also uses a 256-bit memory bus, and makes use of a 28 nm design. It is made up of 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 overall. (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 (approximately 117%) better 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 should be a lot (more or less 117%) better at FSAA than the GeForce GT 640 DDR3, and will be able to handle higher screen resolutions better. (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 data (in units of MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour 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 rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.