Compare any two graphics cards:
VS

GeForce GT 640 DDR3 vs Radeon R9 M375

Intro

The GeForce GT 640 DDR3 has a GPU core speed of 900 MHz, and the 2048 MB of DDR3 RAM is set to run at 1782 MHz through a 128-bit bus. It also is comprised of 384 Stream Processors, 32 Texture Address Units, and 16 ROPs.

Compare all that to the Radeon R9 M375, which makes use of a 28 nm design. AMD has set the core frequency at 1015 MHz. The DDR3 RAM works at a speed of 1100 MHz on this card. It features 640 SPUs along with 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GT 640 DDR3 should theoretically be quite a bit faster than the Radeon R9 M375 in general. (explain)

GeForce GT 640 DDR3 57024 MB/sec
Radeon R9 M375 35200 MB/sec
Difference: 21824 (62%)

Texel Rate

The Radeon R9 M375 will be a lot (more or less 41%) faster with regards to texture filtering than the GeForce GT 640 DDR3. (explain)

Radeon R9 M375 40600 Mtexels/sec
GeForce GT 640 DDR3 28800 Mtexels/sec
Difference: 11800 (41%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 M375 is a better choice, but it probably won't make a huge difference. (explain)

Radeon R9 M375 16240 Mpixels/sec
GeForce GT 640 DDR3 14400 Mpixels/sec
Difference: 1840 (13%)

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

Display Prices

Hide Prices

GeForce GT 640 DDR3

Amazon.com

Check prices at:

Radeon R9 M375

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Display Specifications

Hide Specifications

Model GeForce GT 640 DDR3 Radeon R9 M375
Manufacturer nVidia AMD
Year June 2012 2015
Code Name GK107 Cape Verde
Memory 2048 MB 4096 MB
Core Speed 900 MHz 1015 MHz
Memory Speed 3564 MHz 2200 MHz
Power (Max TDP) 65 watts (Unknown) watts
Bandwidth 57024 MB/sec 35200 MB/sec
Texel Rate 28800 Mtexels/sec 40600 Mtexels/sec
Pixel Rate 14400 Mpixels/sec 16240 Mpixels/sec
Unified Shaders 384 640
Texture Mapping Units 32 40
Render Output Units 16 16
Bus Type DDR3 DDR3
Bus Width 128-bit 128-bit
Fab Process 28 nm 28 nm
Transistors 1300 million (Unknown) million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 12
OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics 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 the video card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GT 640 DDR3

Amazon.com

Check prices at:

Radeon R9 M375

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

Be the first to leave a comment!

Your email address will not be published. Required fields are marked *


*

WordPress Anti Spam by WP-SpamShield