GeForce GTX 950 vs Radeon HD 7770

Intro

Compare that to the Radeon HD 7770, which has core clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 memory. It features 640 SPUs as well as 40 Texture Address Units and 16 Rasterization Operator 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

GeForce GTX 950		6536 points
Radeon HD 7770		3180 points
	Difference: 3356 (106%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770		80 Watts
GeForce GTX 950		90 Watts
	Difference: 10 Watts (13%)

Memory Bandwidth

Theoretically, the GeForce GTX 950 should perform a lot faster than the Radeon HD 7770 overall. (explain)

GeForce GTX 950		105728 MB/sec
Radeon HD 7770		72000 MB/sec
	Difference: 33728 (47%)

Texel Rate

The GeForce GTX 950 is a lot (about 23%) faster with regards to AF than the Radeon HD 7770. (explain)

GeForce GTX 950		49152 Mtexels/sec
Radeon HD 7770		40000 Mtexels/sec
	Difference: 9152 (23%)

Pixel Rate

The GeForce GTX 950 will be quite a bit (about 105%) better at full screen anti-aliasing than the Radeon HD 7770, and also will be capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 950		32768 Mpixels/sec
Radeon HD 7770		16000 Mpixels/sec
	Difference: 16768 (105%)

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 across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video 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 maximum number of pixels the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the clock 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.