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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 640 v3 Zotac 2GB Edition GeForce GT 740
Red Dead Redemption 2 529% 548%
Halo: Reach 100% 106%
Cyberpunk 2077 765% 791%
Call of Duty: Modern Warfare 529% 548%
Doom Eternal 441% 458%
Microsoft Flight Simulator 765% 791%
Warcraft 3: Reforged 76% 75%
Grand Theft Auto VI 862% 891%
Star Wars: Jedi - Fallen Order 765% 791%
Dragon Ball Z Kakarot 288% 300%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 640 v3 Zotac 2GB Edition are marginally better than the Nvidia GeForce GT 740.

The GT 640 has a 53 MHz higher core clock speed than the GeForce GT 740, but the GeForce GT 740 has 16 more Texture Mapping Units than the GT 640. As a result, the GeForce GT 740 exhibits a 15.1 GTexel/s better Texture Fill Rate than the GT 640. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GT 640 has a 53 MHz higher core clock speed than the GeForce GT 740, but the GeForce GT 740 has 8 more Render Output Units than the GT 640. As a result, the GeForce GT 740 exhibits a 7.5 GPixel/s better Pixel Fill Rate than the GT 640. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GeForce GT 740 was released less than a year after the GT 640, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce GT 640 v3 Zotac 2GB Edition and the GeForce GT 740 have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GT 640 has 11.3 GB/sec greater memory bandwidth than the GeForce GT 740, which means that the memory performance of the GT 640 is slightly better than the GeForce GT 740.

Both the GeForce GT 640 v3 Zotac 2GB Edition and the GeForce GT 740 have 384 Shader Processing Units. While the two GPUs have the same number of SPUs, the actual performance delivered by the GT 640 is 402 and by the GeForce GT 740 is 381. Knowing that the shader performance of the GT 640 is superior, it is not necessary to examine the GPUs' respective Texture and Pixel Fill Rates.

The GeForce GT 640 v3 Zotac 2GB Edition requires 49 Watts to run and the GeForce GT 740 requires 64 Watts. We would recommend a PSU with at least 350 Watts for the GT 640 and a PSU with at least 400 Watts for the GeForce GT 740. The GeForce GT 740 requires 15 Watts more than the GT 640 to run. The difference is not significant enough for the GeForce GT 740 to have a noticeably larger impact on your yearly electricity bills than the GT 640.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1046 MHzvs993 MHz
Boost Clock-vs-
ArchitectureKepler GK208-400-A1Kepler GK107-425-A2
OC Potential Poor vs Fair
Driver Support Good vs Good
Release Date29 May 2013vs29 May 2014
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - vs green tick
7.2
1600x900
5.2
vs green tick
5.4
1920x1080
3.9
green tick vs
3.8
2560x1440
2.6
green tick vs green tick
2.6
3840x2160
1.8
green tick vs
1.7

GPU Memory

Memory2048 MBvs2048 MB
Memory Speed1252 MHzvs900 MHz
Memory Bus64 Bitvs128 Bit
Memory TypeGDDR5vsDDR3
Memory Bandwidth40.1GB/secvs28.8GB/sec
L2 Cache 128 KB vs green tick 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units384vs384
Actual Shader Performance19%vs18%
Technology28nmvs28nm
Texture Mapping Units16vs32
Texture Rate16.7 GTexel/svs31.8 GTexel/s
Render Output Units8vs16
Pixel Rate8.4 GPixel/svs15.9 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections1vs0
DVI Connections1vs2
HDMI Connections1vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power49 Wattsvs64 Watts
Recommended PSU350 Watts & 26 Ampsvs400 Watts & 29 Amps

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.5vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3220 3.3GHzvsIntel Core i3-4130 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GT 640 v3 Zotac 2GB Edition is a special edition of NVIDIA's Middle-Class GeForce GT 640 v3, created by Zotac.

Overclock: Central Unit
The Central Unit runs at the same speed.

Overclock: Memory Clock
The Operating Memory Clock and the Frame Buffer remain the same.

Cooling Solution
The Cooling System has been replaced by Zotac's Silent Cooling Solution.

Performance
Without Overclocking Out of The Box, GeForce GT 640 v3 Zotac 2GB Edition is as fast as the reference GeForce GT 640 v3.
Overview
GeForce GT 740 is a Middle-Class Graphics Card based on the first revision of the Kepler Architecture.

Architecture
The Kepler Architecture was NVIDIA's big step to power efficiency. Each Stream Multiprocessor (SMX) now hosts 192 Shader Processing Units - against the 48 of older Fermi Architecture, and has been redesigned being now clocked at the same speed of the Central Unit. This means they are more energy efficient and will consequently lead to cooler operating temperatures. However, it also means they are weaker. It can be said that one Fermi SMX is as fast as 2 Kepler SMXs.
Additionally, and not available in all GPUs, Kepler also introduced the Boost Clock Feature. The Boost Clock is an even higher Clock Speed activated when in gaming mode and becomes the effective speed of the GPU.

GPU
It equips a GPU Codenamed GK107-425-A2 which has 2 Stream Multiprocessors activated and thus offers 384 Shader Processing Units, 32 TMUs and 16 ROPs. The Central Unit is clocked at 993MHz.

Memory
The GPU accesses a 2GB frame buffer of fast DDR3, through a 128-bit memory interface. The size of the frame buffer is exaggerated and in no way benefits the GPU. The Memory Clock Operates at 900MHz.

Features
DirectX 12.0 Support (11.0 Hardware Default) and support for CUDA, OpenCL, DirectCompute, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies

Power Consumption
With a rated board TDP of 64W, it requires at least a 400W PSU and it relies entirely on the PCI Slot for power, meaning no extra connectors are required.

Performance
GeForce GT 740 is essentially a fast GeForce GT 640.
Gaming benchmarks indicate its performance is not too far from the older GeForce GTX 650.

System Suggestions
We recommend a modest processor (Intel Core i3) and 8GB of RAM for a system with GeForce GT 740.
Recommended CPU
Possible GPU Upgrades
GPU Variants
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