Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 780 Gainward Phantom GLH Edition Radeon HD 7870 XT
Red Dead Redemption 2 13% 91%
Cyberpunk 2077 55% 163%
Doom Eternal 3% 64%
Dragon Ball Z Kakarot 30% 18%
Call of Duty: Modern Warfare 13% 91%
Microsoft Flight Simulator 55% 163%
FIFA 20 40% 2%
Grand Theft Auto VI 72% 192%
Star Wars: Jedi - Fallen Order 55% 163%
Need For Speed Heat 13% 91%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 780 Gainward Phantom GLH Edition are significantly better than the AMD Radeon HD 7870 XT.

The GTX 780 has a 55 MHz higher core clock speed and 96 more Texture Mapping Units than the HD 7870 XT. This results in the GTX 780 providing 99.4 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 780 has a 55 MHz higher core clock speed and 16 more Render Output Units than the HD 7870 XT. This results in the GTX 780 providing 17.4 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 780 was released less than a year after the HD 7870 XT, and so they are likely to have similar driver support for optimizing performance when running the latest games.

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 780 has 1024 MB more video memory than the HD 7870 XT, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 780 also has superior memory performance overall.

The GTX 780 has 96.4 GB/sec greater memory bandwidth than the HD 7870 XT, which means that the memory performance of the GTX 780 is massively better than the HD 7870 XT.

The GeForce GTX 780 Gainward Phantom GLH Edition has 2304 Shader Processing Units and the Radeon HD 7870 XT has 1536. However, the actual shader performance of the GTX 780 is 2380 and the actual shader performance of the HD 7870 XT is 1208. The GTX 780 having 1172 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 780 delivers a massively smoother and more efficient experience when processing graphical data than the HD 7870 XT.

The Radeon HD 7870 XT requires 185 Watts to run but there is no entry for the GTX 780. We would recommend a PSU with at least 600 Watts for the GTX 780 and a PSU with at least 500 Watts for the HD 7870 XT. The GTX 780 has been recommended a PSU with 100 Watts more than the HD 7870 XT. The difference is significant enough that the GTX 780 may have an adverse affect on your yearly electricity bills in comparison to the HD 7870 XT.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed980 MHzvs925 MHz
Boost Clock1033 MHzvs-
ArchitectureKepler GK110-300-A1GCN 1.0 Tahiti LE
OC Potential Poor vs Fair
Driver Support Good vs Good
Release Date30 Jun 2013vs01 Nov 2012
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
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GPU Memory

Memory3072 MBvs2048 MB
Memory Speed1502 MHzvs1500 MHz
Memory Bus384 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth288.4GB/secvs192GB/sec
L2 Cache 1536 KB green tick vs 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units2304vs1536
Actual Shader Performance100%vs58%
Texture Mapping Units192vs96
Texture Rate188.2 GTexel/svs88.8 GTexel/s
Render Output Units48vs32
Pixel Rate47 GPixel/svs29.6 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs1
HDMI Connections1vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power-185 Watts
Recommended PSU600 Watts & 42 Ampsvs500 Watts

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4770K 4-Core 3.5GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM8 GB-
Maximum Recommended Gaming Resolution2560x1440vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 780 Gainward Phantom GLH Edition is a special edition of the high-end GeForce GTX 780.
This edition comes with a custom triple fan cooling solution which by itself should allow a slight performance boost, as GeForce GTX 780 benefits from the GPU Boost 2.0 technology.
Also, it has been overclocked out of the box from 863MHz to 980MHz while its boost clock is now of 1033MHz. The memory clock was also increased to 1550MHz.
Benchmarks indicate a 8% performance boost when compared to the reference card.
Radeon HD 7870 XT, initially set to be released as Radeon HD 7930, is a high-end GPU based on the Tahiti Core and not on the Pitcairn like in the 7800 Series.
It's based on the Tahiti LE Core with 1536 Shader Processing Units, 96 TMUs and 32 ROPs. It comes paired with fast GDDR5 but on a 256-bit memory interface. The central unit runs at 925MHz (975MHz in Turbo Mode) and the memory clock operates at 1500MHz. It consumes up to 185 Watt.
Its performance is quite superior to Radeon HD 7870 and only around 3% worse than Radeon HD 7950.
Recommended CPU
Possible GPU Upgrades
GPU Variants