Compare any two graphics cards: GeForce 810M GeForce 820M GeForce 825M GeForce 830M GeForce 840M GeForce 920M GeForce 930M GeForce 940M GeForce GT 1030 GeForce GT 240 GDDR5 1GB GeForce GT 640 DDR3 GeForce GTX 1050 GeForce GTX 1050 3GB GeForce GTX 1050 Ti GeForce GTX 1060 GeForce GTX 1060 3GB GeForce GTX 1070 GeForce GTX 1070 Ti GeForce GTX 1080 Geforce GTX 1080 Ti GeForce GTX 1650 GeForce GTX 1660 Ti GeForce GTX 560 Ti 448 GeForce GTX 650 GeForce GTX 650 Ti GeForce GTX 650 Ti 2GB GeForce GTX 660 GeForce GTX 660 Ti Geforce GTX 670 Geforce GTX 680 Geforce GTX 690 GeForce GTX 750 GeForce GTX 750 Ti Geforce GTX 760 Geforce GTX 770 Geforce GTX 780 GeForce GTX 780 Ti GeForce GTX 850M GeForce GTX 860M GeForce GTX 870M GeForce GTX 880M GeForce GTX 950 GeForce GTX 950M GeForce GTX 960 GeForce GTX 960M GeForce GTX 965M GeForce GTX 970 GeForce GTX 970M GeForce GTX 980 GeForce GTX 980 Ti GeForce GTX 980M GeForce GTX Titan GeForce GTX Titan Black GeForce GTX Titan X GeForce RTX 2060 GeForce RTX 2060 Super GeForce RTX 2070 GeForce RTX 2070 Super GeForce RTX 2080 GeForce RTX 2080 SUPER GeForce RTX 2080 Ti GeForce RTX 3080 Nvidia Titan X Nvidia Titan Xp Radeon HD 7750 Radeon HD 7770 Radeon HD 7790 Radeon HD 7850 Radeon HD 7870 Radeon HD 7870 XT Radeon HD 7950 Radeon HD 7950 3GB Radeon HD 7970 Radeon HD 7990 Radeon Pro Duo Radeon R5 M230 Radeon R5 M255 Radeon R5 M330 Radeon R7 240 Radeon R7 250 Radeon R7 250X Radeon R7 250X 2GB Radeon R7 260X Radeon R7 360 Radeon R7 370 2G Radeon R7 370 4G Radeon R7 M260 Radeon R7 M260X Radeon R7 M265 Radeon R7 M360 Radeon R9 270 Radeon R9 270X Radeon R9 280 Radeon R9 280X Radeon R9 285 Radeon R9 290 Radeon R9 290X Radeon R9 295X2 Radeon R9 380 2G Radeon R9 380 4G Radeon R9 380X Radeon R9 390 8G Radeon R9 390X 8G Radeon R9 Fury X Radeon R9 M265X Radeon R9 M270X Radeon R9 M275X Radeon R9 M280X Radeon R9 M290X Radeon R9 M295X Radeon R9 M365X Radeon R9 M370X Radeon R9 M375 Radeon R9 M375X Radeon R9 M380 Radeon R9 M385X Radeon R9 M390X Radeon R9 M395X Radeon R9 Nano Radeon RX 460 Radeon RX 460 2GB Radeon RX 470 Radeon RX 470 4GB Radeon RX 480 Radeon RX 480 4GB Radeon RX 550 Radeon RX 5500 Radeon RX 5500 XT Radeon RX 560 Radeon RX 5600 Radeon RX 5600 XT Radeon RX 570 Radeon RX 5700 Radeon RX 5700 XT Radeon RX 5700 XT 50th Anniversary Edition Radeon RX 580 Radeon RX 590 Radeon RX Vega 56 Radeon RX Vega 64 Radeon Vega Frontier Edition Radeon VII VS GeForce 810M GeForce 820M GeForce 825M GeForce 830M GeForce 840M GeForce 920M GeForce 930M GeForce 940M GeForce GT 1030 GeForce GT 240 GDDR5 1GB GeForce GT 640 DDR3 GeForce GTX 1050 GeForce GTX 1050 3GB GeForce GTX 1050 Ti GeForce GTX 1060 GeForce GTX 1060 3GB GeForce GTX 1070 GeForce GTX 1070 Ti GeForce GTX 1080 Geforce GTX 1080 Ti GeForce GTX 1650 GeForce GTX 1660 Ti GeForce GTX 560 Ti 448 GeForce GTX 650 GeForce GTX 650 Ti GeForce GTX 650 Ti 2GB GeForce GTX 660 GeForce GTX 660 Ti Geforce GTX 670 Geforce GTX 680 Geforce GTX 690 GeForce GTX 750 GeForce GTX 750 Ti Geforce GTX 760 Geforce GTX 770 Geforce GTX 780 GeForce GTX 780 Ti GeForce GTX 850M GeForce GTX 860M GeForce GTX 870M GeForce GTX 880M GeForce GTX 950 GeForce GTX 950M GeForce GTX 960 GeForce GTX 960M GeForce GTX 965M GeForce GTX 970 GeForce GTX 970M GeForce GTX 980 GeForce GTX 980 Ti GeForce GTX 980M GeForce GTX Titan GeForce GTX Titan Black GeForce GTX Titan X GeForce RTX 2060 GeForce RTX 2060 Super GeForce RTX 2070 GeForce RTX 2070 Super GeForce RTX 2080 GeForce RTX 2080 SUPER GeForce RTX 2080 Ti GeForce RTX 3080 Nvidia Titan X Nvidia Titan Xp Radeon HD 7750 Radeon HD 7770 Radeon HD 7790 Radeon HD 7850 Radeon HD 7870 Radeon HD 7870 XT Radeon HD 7950 Radeon HD 7950 3GB Radeon HD 7970 Radeon HD 7990 Radeon Pro Duo Radeon R5 M230 Radeon R5 M255 Radeon R5 M330 Radeon R7 240 Radeon R7 250 Radeon R7 250X Radeon R7 250X 2GB Radeon R7 260X Radeon R7 360 Radeon R7 370 2G Radeon R7 370 4G Radeon R7 M260 Radeon R7 M260X Radeon R7 M265 Radeon R7 M360 Radeon R9 270 Radeon R9 270X Radeon R9 280 Radeon R9 280X Radeon R9 285 Radeon R9 290 Radeon R9 290X Radeon R9 295X2 Radeon R9 380 2G Radeon R9 380 4G Radeon R9 380X Radeon R9 390 8G Radeon R9 390X 8G Radeon R9 Fury X Radeon R9 M265X Radeon R9 M270X Radeon R9 M275X Radeon R9 M280X Radeon R9 M290X Radeon R9 M295X Radeon R9 M365X Radeon R9 M370X Radeon R9 M375 Radeon R9 M375X Radeon R9 M380 Radeon R9 M385X Radeon R9 M390X Radeon R9 M395X Radeon R9 Nano Radeon RX 460 Radeon RX 460 2GB Radeon RX 470 Radeon RX 470 4GB Radeon RX 480 Radeon RX 480 4GB Radeon RX 550 Radeon RX 5500 Radeon RX 5500 XT Radeon RX 560 Radeon RX 5600 Radeon RX 5600 XT Radeon RX 570 Radeon RX 5700 Radeon RX 5700 XT Radeon RX 5700 XT 50th Anniversary Edition Radeon RX 580 Radeon RX 590 Radeon RX Vega 56 Radeon RX Vega 64 Radeon Vega Frontier Edition Radeon VII

GeForce GT 640 DDR3 vs Geforce GTX 770

Intro

The GeForce GT 640 DDR3 uses a 28 nm design. nVidia has clocked the core frequency at 900 MHz. The DDR3 RAM runs at a frequency of 1782 MHz on this model. It features 384 SPUs as well as 32 TAUs and 16 ROPs.

Compare all of that to the Geforce GTX 770, which makes use of a 28 nm design. nVidia has clocked the core speed at 1046 MHz. The GDDR5 memory runs at a speed of 1753 MHz on this specific model. It features 1536 SPUs as well as 128 TAUs and 32 ROPs.

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 770 7854 points GeForce GT 640 DDR3 1560 points Difference: 6294 (403%) Power Usage and Theoretical Benchmarks Power Consumption (Max TDP ) GeForce GT 640 DDR3 65 Watts Geforce GTX 770 230 Watts Difference: 165 Watts (254%) Memory Bandwidth Theoretically speaking, the Geforce GTX 770 should perform a lot faster than the GeForce GT 640 DDR3 in general. (explain) Geforce GTX 770 224384 MB/sec GeForce GT 640 DDR3 57024 MB/sec Difference: 167360 (293%) Texel Rate The Geforce GTX 770 should be quite a bit (more or less 365%) better at AF than the GeForce GT 640 DDR3. ( The Geforce GTX 770 should be quite a bit (more or less 365%) better at AF than the GeForce GT 640 DDR3. ( explain Geforce GTX 770 133888 Mtexels/sec GeForce GT 640 DDR3 28800 Mtexels/sec Difference: 105088 (365%) Pixel Rate The Geforce GTX 770 is a lot (about 132%) faster with regards to FSAA than the GeForce GT 640 DDR3, and also will be able to handle higher screen resolutions better. ( The Geforce GTX 770 is a lot (about 132%) faster with regards to FSAA than the GeForce GT 640 DDR3, and also will be able to handle higher screen resolutions better. ( explain Geforce GTX 770 33472 Mpixels/sec GeForce GT 640 DDR3 14400 Mpixels/sec Difference: 19072 (132%) 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

Display Specifications Hide Specifications Model GeForce GT 640 DDR3 Geforce GTX 770 Manufacturer nVidia nVidia Year June 2012 May 2013 Code Name GK107 GK104 Memory 2048 MB 2048 MB Core Speed 900 MHz 1046 MHz Memory Speed 3564 MHz 7012 MHz Power (Max TDP) 65 watts 230 watts Bandwidth 57024 MB/sec 224384 MB/sec Texel Rate 28800 Mtexels/sec 133888 Mtexels/sec Pixel Rate 14400 Mpixels/sec 33472 Mpixels/sec Unified Shaders 384 1536 Texture Mapping Units 32 128 Render Output Units 16 32 Bus Type DDR3 GDDR5 Bus Width 128-bit 256-bit Fab Process 28 nm 28 nm Transistors 1300 million 3540 million Bus PCIe 3.0 x16 PCIe 3.0 x16 DirectX Version DirectX 11.0 DirectX 11.0 OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of information (measured in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If it uses 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 higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated 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 outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.