Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 560 Club3D CoolStream Super OC 1GB Edition GeForce GTX 645 (OEM)
Mount and Blade 2: Bannerlord 175% 348%
Doom Eternal 191% 374%
Half-Life: Alyx 333% 604%
Cyberpunk 2077 293% 539%
Grand Theft Auto VI 337% 611%
Resident Evil 3 Remake 175% 348%
Microsoft Flight Simulator 293% 539%
One Piece: Pirate Warriors 4 175% 348%
Ori and the Will of the Wisps 165% 331%
Call of Duty: Modern Warfare 2 Remastered 7% 74%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 560 Club3D CoolStream Super OC 1GB Edition are significantly better than the Nvidia GeForce GTX 645 (OEM).

The GTX 560 has a 77 MHz higher core clock speed and 8 more Texture Mapping Units than the GTX 645. This results in the GTX 560 providing 10.9 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 560 has a 77 MHz higher core clock speed and 16 more Render Output Units than the GTX 645. This results in the GTX 560 providing 15.6 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GTX 645 was released over a year more recently than the GTX 560, and so the GTX 645 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 560.

The GeForce GTX 560 Club3D CoolStream Super OC 1GB Edition and the GeForce GTX 645 (OEM) have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GTX 560 has 67.3 GB/sec greater memory bandwidth than the GTX 645, which means that the memory performance of the GTX 560 is much better than the GTX 645.

The GeForce GTX 560 Club3D CoolStream Super OC 1GB Edition has 336 Shader Processing Units and the GeForce GTX 645 (OEM) has 576. However, the actual shader performance of the GTX 560 is 605 and the actual shader performance of the GTX 645 is 511. The GTX 560 having 94 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 560 delivers a massively smoother and more efficient experience when processing graphical data than the GTX 645.

The GTX 645 transistor size technology is 12 nm (nanometers) smaller than the GTX 560. This means that the GTX 645 is expected to run slightly cooler and achieve higher clock frequencies than the GTX 560.

The GeForce GTX 560 Club3D CoolStream Super OC 1GB Edition requires 176 Watts to run and the GeForce GTX 645 (OEM) requires 65 Watts. We would recommend a PSU with at least 450 Watts for the GTX 560 and a PSU with at least 450 Watts for the GTX 645. The GTX 560 requires 111 Watts more than the GTX 645 to run. The difference is significant enough that the GTX 560 may have an adverse affect on your yearly electricity bills in comparison to the GTX 645.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed900 MHzvs823 MHz
Boost Clock-vs888 MHz
ArchitectureFermi GF114-325-A1Kepler GK106
OC Potential Poor vs Fair
Driver Support Poor vs Good
Release Date17 May 2011vs22 Apr 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs
8.2
1600x900
7.9
green tick vs
6.2
1920x1080
6.1
green tick vs
4.8
2560x1440
4.1
green tick vs
3
3840x2160 - vs green tick
2

GPU Memory

Memory1024 MBvs1024 MB
Memory Speed1026 MHzvs1000 MHz
Memory Bus256 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth131.3GB/secvs64GB/sec
L2 Cache 512 KB green tick vs 384 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units336vs576
Actual Shader Performance29%vs25%
Technology40nmvs28nm
Texture Mapping Units56vs48
Texture Rate50.4 GTexel/svs39.5 GTexel/s
Render Output Units32vs16
Pixel Rate28.8 GPixel/svs13.2 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections2vs2
HDMI Connections1vs1
DisplayPort Connections0vs-
Comparison

GPU Power Requirements

Max Power176 Wattsvs65 Watts
Recommended PSU450 Watts & 30 Ampsvs450 Watts & 33 Amps

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-2300 2.8GHzvsIntel Core i3-3250 3.5GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GTX 560 Club3D CoolStream Super OC 1GB Edition is a Special Edition of NVIDIA's Performance GeForce GTX 560, created by Club3D.

Overclock: Central Unit
The Central Unit now runs at 900MHz, instead of 810MHz.

Overclock: Memory Clock
The Operating Memory Clock is now of 1026MHz, instead of 1002MHz.

Frame Buffer
Untouched.


Cooling Solution
CoolStream Cooling Solution.

Performance
Benchmarks Indicate a 7% Performance Boost over the Reference GeForce GTX 560.
Overview
GeForce GTX 645 is an OEM only, Fast-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 Kepler GK106 which has 3 Stream Multiprocessors activated and thus offers 576 Shader Processing Units, 48 TMUs and 16 ROPs. The Central Unit is Initially Clocked at 823 and goes up to 888MHz, in Turbo Mode.

Memory
The GPU accesses a 1GB frame buffer of fast GDDR5, through a 128-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 1000MHz.

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

Power Consumption
With a rated board TDP of 65W, it requires at least a 450W PSU and it relies entirely on the PCI Slot for power, meaning no extra connectors are required.

Performance
Gaming Benchmarks put its Performance on average with GeForce GTX 650.

System Suggestions
We recommend a Modest Processor (Intel Core i3) and 8GB of RAM for a system with GeForce GTX 645.
Recommended CPU
Possible GPU Upgrades
GPU Variants
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