Compare any two graphics cards:
VS

Radeon HD 6750 vs Radeon R9 390 8G

Intro

The Radeon HD 6750 makes use of a 40 nm design. AMD has clocked the core speed at 725 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this card. It features 720 SPUs as well as 36 TAUs and 16 ROPs.

Compare those specs to the Radeon R9 390 8G, which comes with core clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 RAM. It features 2560 SPUs along with 160 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 86 Watts
Radeon R9 390 8G 275 Watts
Difference: 189 Watts (220%)

Memory Bandwidth

In theory, the Radeon R9 390 8G should perform quite a bit faster than the Radeon HD 6750 overall. (explain)

Radeon R9 390 8G 384000 MB/sec
Radeon HD 6750 64000 MB/sec
Difference: 320000 (500%)

Texel Rate

The Radeon R9 390 8G should be quite a bit (about 513%) more effective at texture filtering than the Radeon HD 6750. (explain)

Radeon R9 390 8G 160000 Mtexels/sec
Radeon HD 6750 26100 Mtexels/sec
Difference: 133900 (513%)

Pixel Rate

The Radeon R9 390 8G will be quite a bit (approximately 452%) better at AA than the Radeon HD 6750, and able to handle higher resolutions better. (explain)

Radeon R9 390 8G 64000 Mpixels/sec
Radeon HD 6750 11600 Mpixels/sec
Difference: 52400 (452%)

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

Radeon HD 6750

Amazon.com

Check prices at:

Radeon R9 390 8G

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 Radeon HD 6750 Radeon R9 390 8G
Manufacturer AMD AMD
Year January 2011 June 2015
Code Name Juniper Pro Grenada PRO
Memory 512 MB 8192 MB
Core Speed 725 MHz 1000 MHz
Memory Speed 4000 MHz 6000 MHz
Power (Max TDP) 86 watts 275 watts
Bandwidth 64000 MB/sec 384000 MB/sec
Texel Rate 26100 Mtexels/sec 160000 Mtexels/sec
Pixel Rate 11600 Mpixels/sec 64000 Mpixels/sec
Unified Shaders 720 2560
Texture Mapping Units 36 160
Render Output Units 16 64
Bus Type GDDR5 GDDR5
Bus Width 128-bit 512-bit
Fab Process 40 nm 28 nm
Transistors 1040 million 6200 million
Bus PCIe x16 PCIe 3.0 ×16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.0 OpenGL 4.5

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher 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 number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6750

Amazon.com

Check prices at:

Radeon R9 390 8G

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