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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTS 450 PNY XLR8 Performance 1GB Edition GeForce GT 640 v3 Zotac 2GB Edition
Halo: Reach 70% 100%
Cyberpunk 2077 635% 765%
Dragon Ball Z Kakarot 230% 288%
Red Dead Redemption 2 435% 529%
Call of Duty: Modern Warfare 435% 529%
Microsoft Flight Simulator 635% 765%
Doom Eternal 360% 441%
Grand Theft Auto VI 718% 862%
FIFA 20 185% 235%
Need For Speed Heat 435% 529%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTS 450 PNY XLR8 Performance 1GB Edition are very slightly better than the Nvidia GeForce GT 640 v3 Zotac 2GB Edition.

The GT 640 has a 263 MHz higher core clock speed than the GTS 450, but the GTS 450 has 16 more Texture Mapping Units than the GT 640. As a result, the GTS 450 exhibits a 8.4 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 263 MHz higher core clock speed than the GTS 450, but the GTS 450 has 8 more Render Output Units than the GT 640. As a result, the GTS 450 exhibits a 4.1 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 GT 640 was released over a year more recently than the GTS 450, and so the GT 640 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTS 450.

The GT 640 has 1024 MB more video memory than the GTS 450, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

The GTS 450 has 17.6 GB/sec greater memory bandwidth than the GT 640, which means that the memory performance of the GTS 450 is slightly better than the GT 640.

The GeForce GTS 450 PNY XLR8 Performance 1GB Edition has 192 Shader Processing Units and the GeForce GT 640 v3 Zotac 2GB Edition has 384. However, the actual shader performance of the GTS 450 is 301 and the actual shader performance of the GT 640 is 402. The GT 640 having 101 better shader performance is not particularly notable, as altogether the GTS 450 performs better when taking into account other relevant data.

The GT 640 transistor size technology is 12 nm (nanometers) smaller than the GTS 450. This means that the GT 640 is expected to run slightly cooler and achieve higher clock frequencies than the GTS 450.

The GeForce GTS 450 PNY XLR8 Performance 1GB Edition requires 106 Watts to run and the GeForce GT 640 v3 Zotac 2GB Edition requires 49 Watts. We would recommend a PSU with at least 400 Watts for the GTS 450 and a PSU with at least 350 Watts for the GT 640. The GTS 450 requires 57 Watts more than the GT 640 to run. The difference is significant enough that the GTS 450 may have an adverse affect on your yearly electricity bills in comparison to the GT 640.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed783 MHzvs1046 MHz
Boost Clock-vs-
ArchitectureFermi GF106-250-KA-A1Kepler GK208-400-A1
OC Potential Fair vs Poor
Driver Support Poor vs Good
Release Date15 Oct 2010vs29 May 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
7.9
green tick vs -
1600x900
5.9
green tick vs
5.2
1920x1080
4.4
green tick vs
3.9
2560x1440
2.7
green tick vs
2.6
3840x2160 - vs green tick
1.8

GPU Memory

Memory1024 MBvs2048 MB
Memory Speed902 MHzvs1252 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth57.7GB/secvs40.1GB/sec
L2 Cache 256 KB green tick vs 128 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units192vs384
Actual Shader Performance14%vs19%
Technology40nmvs28nm
Texture Mapping Units32vs16
Texture Rate25.1 GTexel/svs16.7 GTexel/s
Render Output Units16vs8
Pixel Rate12.5 GPixel/svs8.4 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs1
DVI Connections2vs1
HDMI Connections1vs1
DisplayPort Connections0vs-
Comparison

GPU Power Requirements

Max Power106 Wattsvs49 Watts
Recommended PSU400 Watts & 29 Ampsvs350 Watts & 26 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 i3-560 3.3GHzvsIntel Core i3-3220 3.3GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GTS 450 PNY XLR8 Performance 1GB Edition is a special edition of NVIDIA's fast-middle-class GeForce GTS 450, created by PNY.

Overclock: Central Unit
None.

Overclock: Memory Clock
None.

Frame Buffer
Untouched.


Cooling Solution
Untouched.

Performance
Benchmarks Indicate no Performance Boost over the Reference GeForce GTS 450.
Overview
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.
Recommended CPU
Possible GPU Upgrades
GPU Variants
-
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