GeForce GT 640 vs Radeon HD 7870 XT

When choosing between GeForce GT 640 and Radeon HD 7870 XT, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GT 640 and Radeon HD 7870 XT.

GeForce GT 640 Check Price

Radeon HD 7870 XT

Main Specs

	GeForce GT 640	Radeon HD 7870 XT
Power consumption (TDP)	65 Watt	185 Watt
Interface	PCIe 3.0 x16	PCIe 3.0 x16
Supplementary power connectors	None	2x 6-pin
Memory type	DDR3	GDDR5
Maximum RAM amount	2 GB	2 GB
Display Connectors	1x DVI, 1x HDMI, 1x DisplayPort	1x DVI, 1x HDMI, 2x mini-DisplayPort
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Radeon HD 7870 XT has 184% more power consumption, than GeForce GT 640.
Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
GeForce GT 640 and Radeon HD 7870 XT have maximum RAM of 2 GB.
Both cards are used in Desktops.
GeForce GT 640 is build with Kepler architecture, and Radeon HD 7870 XT - with GCN 1.0.
Core clock speed of Radeon HD 7870 XT is 23 MHz higher, than GeForce GT 640.
GeForce GT 640 and Radeon HD 7870 XT are manufactured by 28 nm process technology.
Radeon HD 7870 XT is 122 mm longer, than GeForce GT 640.
Memory clock speed of Radeon HD 7870 XT is 4218 MHz higher, than GeForce GT 640.

Game benchmarks


high / 1080p	2−3	35−40
ultra / 1080p	1−2	21−24
QHD / 1440p	0−1	16−18
4K / 2160p	−	10−11
low / 720p	14−16	60−65
medium / 1080p	5−6	40−45
The average gaming FPS of Radeon HD 7870 XT in Assassin's Creed Odyssey is 583% more, than GeForce GT 640.
high / 1080p	7−8	55−60
ultra / 1080p	5−6	45−50
QHD / 1440p	0−1	35−40
4K / 2160p	−	18−20
low / 720p	20−22	100−110
medium / 1080p	7−8	60−65
The average gaming FPS of Radeon HD 7870 XT in Battlefield 5 is 580% more, than GeForce GT 640.
low / 768p	50−55	50−55
high / 1080p	35−40	−
QHD / 1440p	0−1	0−1
GeForce GT 640 and Radeon HD 7870 XT have the same average FPS in Call of Duty: Warzone.
low / 768p	110−120	250−260
medium / 768p	90−95	220−230
ultra / 1080p	45−50	180−190
QHD / 1440p	24−27	110−120
4K / 2160p	18−20	70−75
high / 768p	65−70	210−220
The average gaming FPS of Radeon HD 7870 XT in Counter-Strike: Global Offensive is 190% more, than GeForce GT 640.
low / 768p	70−75	60−65
ultra / 1080p	21−24	−
medium / 1080p	45−50	55−60
GeForce GT 640 and Radeon HD 7870 XT have the same average FPS in Cyberpunk 2077.
low / 768p	70−75	120−130
medium / 768p	50−55	110−120
ultra / 1080p	27−30	100−110
The average gaming FPS of Radeon HD 7870 XT in Dota 2 is 125% more, than GeForce GT 640.
high / 1080p	3−4	45−50
ultra / 1080p	3−4	40−45
QHD / 1440p	−	27−30
4K / 2160p	2−3	14−16
low / 720p	14−16	80−85
medium / 1080p	4−5	45−50
The average gaming FPS of Radeon HD 7870 XT in Far Cry 5 is 840% more, than GeForce GT 640.
high / 1080p	10−12	60−65
ultra / 1080p	5−6	45−50
QHD / 1440p	2−3	27−30
4K / 2160p	−	27−30
low / 720p	50−55	180−190
medium / 1080p	16−18	110−120
The average gaming FPS of Radeon HD 7870 XT in Fortnite is 411% more, than GeForce GT 640.
high / 1080p	6−7	60−65
ultra / 1080p	−	45−50
QHD / 1440p	4−5	30−35
4K / 2160p	2−3	24−27
low / 720p	21−24	100−110
medium / 1080p	9−10	65−70
The average gaming FPS of Radeon HD 7870 XT in Forza Horizon 4 is 544% more, than GeForce GT 640.
low / 768p	45−50	140−150
medium / 768p	−	120−130
high / 1080p	7−8	70−75
ultra / 1080p	3−4	30−35
QHD / 1440p	0−1	21−24
medium / 720p	40−45	−
The average gaming FPS of Radeon HD 7870 XT in Grand Theft Auto V is 336% more, than GeForce GT 640.
high / 1080p	2−3	24−27
ultra / 1080p	0−1	20−22
QHD / 1440p	−	16−18
4K / 2160p	0−1	8−9
low / 720p	8−9	65−70
medium / 1080p	4−5	30−35
The average gaming FPS of Radeon HD 7870 XT in Metro Exodus is 720% more, than GeForce GT 640.
low / 768p	80−85	130−140
ultra / 1080p	70−75	−
medium / 1080p	−	120−130
The average gaming FPS of Radeon HD 7870 XT in Minecraft is 64% more, than GeForce GT 640.
ultra / 1080p	12−14	14−16
low / 720p	27−30	100−110
medium / 1080p	14−16	18−20
The average gaming FPS of Radeon HD 7870 XT in PLAYERUNKNOWN'S BATTLEGROUNDS is 155% more, than GeForce GT 640.
high / 1080p	6−7	24−27
ultra / 1080p	4−5	16−18
QHD / 1440p	0−1	10−11
4K / 2160p	−	7−8
low / 720p	7−8	65−70
medium / 1080p	−	35−40
The average gaming FPS of Radeon HD 7870 XT in Red Dead Redemption 2 is 500% more, than GeForce GT 640.
low / 768p	14−16	130−140
medium / 768p	10−11	85−90
high / 1080p	5−6	45−50
ultra / 1080p	4−5	24−27
4K / 2160p	0−1	16−18
The average gaming FPS of Radeon HD 7870 XT in The Witcher 3: Wild Hunt is 812% more, than GeForce GT 640.
low / 768p	70−75	90−95
medium / 768p	35−40	60−65
ultra / 1080p	16−18	50−55
high / 768p	30−35	60−65
The average gaming FPS of Radeon HD 7870 XT in World of Tanks is 71% more, than GeForce GT 640.

Full Specs

	GeForce GT 640	Radeon HD 7870 XT
Architecture	Kepler	GCN 1.0
Code name	GK107	Tahiti
Type	Desktop	Desktop
Release date	5 June 2012	19 November 2012
Pipelines	384	1536
Core clock speed	902 MHz	925 MHz
Boost Clock		975 MHz
Transistor count	1,270 million	4,313 million
Manufacturing process technology	28 nm	28 nm
Texture fill rate	28.86	93.60
Floating-point performance	692.7 gflops	2,995 gflops
Length	145 mm	267 mm
Memory bus width	128 Bit	256 Bit
Memory clock speed	1782 MHz	6000 MHz
Memory bandwidth	28.51 GB/s	192.0 GB/s
DirectX	12 (11_0)	12 (11_1)
Shader Model	5.1	5.1
OpenGL	4.6	4.6
OpenCL	1.2	1.2
Vulkan	1.1.126	1.2.131
CUDA	3.0
Bitcoin / BTC (SHA256)	24 Mh/s	346 Mh/s
Ethereum / ETH (DaggerHashimoto)		14.5 Mh/s
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GeForce GT 640 vs Radeon HD 7870 XT

Main Specs

Game benchmarks

Full Specs

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