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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 770 Zotac AMP! Edition Radeon Sky 500
Cyberpunk 2077 41% 174%
Hitman 3 84% 256%
Assassins Creed: Valhalla 29% 150%
Call of Duty: Black Ops Cold War 25% 142%
FIFA 21 29% 38%
Grand Theft Auto VI 99% 285%
Far Cry 6 105% 296%
Genshin Impact 41% 174%
Battlefield 6 84% 256%
Resident Evil 8 41% 174%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 770 Zotac AMP! Edition are significantly better than the AMD Radeon Sky 500.

The GTX 770 was released less than a year after the Radeon Sky 500, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The Radeon Sky 500 has 2048 MB more video memory than the GTX 770, so is likely to be much better at displaying game textures at higher resolutions. However, overall, the GTX 770 has superior memory performance.

The GTX 770 has 76.8 GB/sec greater memory bandwidth than the Radeon Sky 500, which means that the memory performance of the GTX 770 is much better than the Radeon Sky 500.

The GeForce GTX 770 Zotac AMP! Edition has 1536 Shader Processing Units and the Radeon Sky 500 has 1280. However, the actual shader performance of the GTX 770 is 1846 and the actual shader performance of the Radeon Sky 500 is 790. The GTX 770 having 1056 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 770 delivers a massively smoother and more efficient experience when processing graphical data than the Radeon Sky 500.

The Radeon Sky 500 requires 150 Watts to run but there is no entry for the GTX 770. We would recommend a PSU with at least 600 Watts for the GTX 770.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1150 MHzvs950 MHz
Boost Clock1202 MHzvs-
ArchitectureKepler GK104-425-A2-
OC Potential - vs -
Driver Support Good vs -
Release Date30 Jun 2013vs25 Mar 2013
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - green tick vs green tick -
green tick vs -
green tick vs -
green tick vs -
green tick vs -

GPU Memory

Memory2048 MBvs4096 MB
Memory Speed1800 MHzvs1200 MHz
Memory Bus256 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth230.4GB/secvs153.6GB/sec
L2 Cache 512 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units1536vs1280
Actual Shader Performance89%vs38%
Texture Mapping Units128vs-
Texture Rate147.2 GTexel/svs-
Render Output Units32vs-
Pixel Rate36.8 GPixel/svs-

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs-
VGA Connections0vs0
DVI Connections2vs0
HDMI Connections1vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power-150 Watts
Recommended PSU600 Watts-

GPU Features

Shader Model5.0vs5.0
Open GL4.5vs4.3
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-4670K 3.4GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 770 Zotac AMP! Edition is a special edition of GeForce GTX 770.
This edition comes with a custom dual fan cooling solution which by itself should allow a slight performance boost, as GeForce GTX 770 benefits from the GPU Boost 2.0 technology.
Also, it has been overclocked out of the box from 1046MHz to 1150MHz while its boost clock is now of 1202MHz. The memory clock was increased to 1800MHz.
Benchmarks indicate a 8% performance boost when compared to the reference card and so this edition performs slightly better than GeForce GTX 590.
Radeon Sky 500 is a high-end GFX that's based on the 28nm, GCN architecture.
Its performance is comparable to a single Radeon HD 7870, due to the Core similarities but consumes less power (up to 150 Watt).
Recommended CPU
Possible GPU Upgrades
GPU Variants