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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7970 PowerColor LCS 3GB Edition GeForce GTX 770 SLI
Red Dead Redemption 2 45% 5%
Halo: Reach 54% 70%
Cyberpunk 2077 99% 31%
Call of Duty: Modern Warfare 45% 5%
Doom Eternal 25% 18%
Microsoft Flight Simulator 99% 31%
Grand Theft Auto VI 121% 46%
Dragon Ball Z Kakarot 11% 41%
Star Wars: Jedi - Fallen Order 99% 31%
Need For Speed Heat 45% 5%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 770 SLI are significantly better than the AMD Radeon HD 7970 PowerColor LCS 3GB Edition.

The HD 7970 has a 4 MHz higher core clock speed than the GTX 770, but the GTX 770 has 128 more Texture Mapping Units than the HD 7970. As a result, the GTX 770 exhibits a 133.4 GTexel/s better Texture Fill Rate than the HD 7970. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD 7970 has a 4 MHz higher core clock speed than the GTX 770, but the GTX 770 has 32 more Render Output Units than the HD 7970. As a result, the GTX 770 exhibits a 33.3 GPixel/s better Pixel Fill Rate than the HD 7970. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GTX 770 was released over a year more recently than the HD 7970, and so the GTX 770 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD 7970.

Both GPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings.

The GTX 770 has 1024 MB more video memory than the HD 7970, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 770 also has superior memory performance overall.

The GTX 770 has 174.9 GB/sec greater memory bandwidth than the HD 7970, which means that the memory performance of the GTX 770 is massively better than the HD 7970.

The Radeon HD 7970 PowerColor LCS 3GB Edition has 2048 Shader Processing Units and the GeForce GTX 770 SLI has 3072. However, the actual shader performance of the HD 7970 is 1828 and the actual shader performance of the GTX 770 is 3333. The GTX 770 having 1505 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 HD 7970.

The Radeon HD 7970 PowerColor LCS 3GB Edition requires 250 Watts to run and the GeForce GTX 770 SLI requires 400 Watts. We would recommend a PSU with at least 650 Watts for the HD 7970 and a PSU with at least 750 Watts for the GTX 770. The GTX 770 requires 150 Watts more than the HD 7970 to run. The difference is significant enough that the GTX 770 may have an adverse affect on your yearly electricity bills in comparison to the HD 7970.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1050 MHzvs1046 MHz
Boost Clock-vs1085 MHz
ArchitectureGCN 1.0 Tahiti XTKepler GK104-425-A2 (x2)
OC Potential Poor vs Poor
Driver Support Good vs Good
Release Date01 Jan 2012vs30 May 2013
GPU LinkGD LinkGD Link

Resolution Performance

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

GPU Memory

Memory3072 MBvs4096 MB
Memory Speed1425 MHzvs1752 MHz
Memory Bus384 Bitvs512 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth273.6GB/secvs448.5GB/sec
L2 Cache 768 KB vs green tick 1024 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units2048vs3072
Actual Shader Performance88%vs100%
Texture Mapping Units128vs256
Texture Rate134.4 GTexel/svs267.8 GTexel/s
Render Output Units32vs64
Pixel Rate33.6 GPixel/svs66.9 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections1vs4
HDMI Connections1vs2
DisplayPort Connections-vs-

GPU Power Requirements

Max Power250 Wattsvs400 Watts
Recommended PSU650 Watts & 42 Ampsvs750 Watts

GPU Features

Shader Model5.0vs5.0
Open GL4.4vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-2500K 3.3GHzvsIntel Core i7-4770K 4-Core 3.5GHz
Recommended RAM8 GBvs12 GB
Maximum Recommended Gaming Resolution1920x1080vs2560x1600

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 7970 PowerColor LCS 3GB Edition is a special edition of the Radeon HD 7970 release by AMD. See its page for more information.
Changes include a boost in the core-clock from 925MHz to 1050MHz and in the memory clock from 5500GHz to 5700GHz. A tweaked cooling system and other changes were also made.
Benchmarks indicate a 7% performance boost when compared to the standard Radeon HD 7970.
GeForce GTX 770 SLI is a combination of 2 GeForce GTX 770 put together using NVIDIA's SLI technology.
Together, this combination offers 3072 Shader Processing Units, 256 TMUs and 64 ROPs. This, on a 256-bit memory interface, per card, of fast GDDR5. While the central unit runs at 1046MHz and goes up to 1085MHz, in Turbo Mode, the memory clock operates at 1752MHz.
Best case scenario, this combination performs better than dual-graphics GeForce GTX 690 but ultimately, its performance depends on the driver support and on the 3D application.
Therefore, and paired with a powerful processor, all demanding games are playable at the highest settings. Still, this combination might surpass the 450W barrier of TDP and so it will require a very powerful PSU.
Recommended CPU
Possible GPU Upgrades
GPU Variants