Select any two GPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 7870 PCS+ Vortex II Edition Radeon HD 7950
Cyberpunk 2077 103% 95%
Assassins Creed: Valhalla 86% 78%
Call of Duty: Black Ops Cold War 80% 72%
Watch Dogs Legion 96% 88%
Godfall 230% 216%
FIFA 21 2% 2%
Microsoft Flight Simulator 80% 72%
Grand Theft Auto VI 186% 174%
World of Warcraft: Shadowlands 191% 179%
Genshin Impact 103% 95%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 7950 are marginally better than the AMD Radeon HD 7870 PCS+ Vortex II Edition.

The HD 7870 has a 350 MHz higher core clock speed but 32 fewer Texture Mapping Units than the Radeon HD 7950. The lower TMU count doesn't matter, though, as altogether the HD 7870 manages to provide 2.4 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 HD 7870 has a 350 MHz higher core clock speed than the Radeon HD 7950 and the same number of Render Output Units. This results in the HD 7870 providing 11.2 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 HD 7870 was released less than a year after the Radeon HD 7950, 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 Radeon HD 7950 has 1024 MB more video memory than the HD 7870, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the Radeon HD 7950 also has superior memory performance overall.

The Radeon HD 7950 has 80 GB/sec greater memory bandwidth than the HD 7870, which means that the memory performance of the Radeon HD 7950 is much better than the HD 7870.

The Radeon HD 7870 PCS+ Vortex II Edition has 1280 Shader Processing Units and the Radeon HD 7950 has 1792. However, the actual shader performance of the HD 7870 is 1251 and the actual shader performance of the Radeon HD 7950 is 1219. The HD 7870 having 32 better shader performance is not particularly notable, as altogether the Radeon HD 7950 performs better when taking into account other relevant data.

The Radeon HD 7950 requires 200 Watts to run but there is no entry for the HD 7870. We would recommend a PSU with at least 500 Watts for the HD 7870 and a PSU with at least 500 Watts for the Radeon HD 7950. The two GPUs have been recommended a PSU with the same amount of wattage. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1150 MHzvs800 MHz
Boost Clock-vs-
ArchitectureGCN 1.0 Pitcairn XTGCN 1.0 Tahiti PRO
OC Potential Poor vs Good
Driver Support Good vs Good
Release Date01 Sep 2012vs31 Jan 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - vs green tick
10
1600x900
9.5
green tick vs green tick
9.5
1920x1080
7.5
vs green tick
7.6
2560x1440
5.5
vs green tick
5.7
3840x2160
3.9
vs green tick
4.2

GPU Memory

Memory2048 MBvs3072 MB
Memory Speed1250 MHzvs1250 MHz
Memory Bus256 Bitvs384 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth160GB/secvs240GB/sec
L2 Cache 512 KB vs green tick 768 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units1280vs1792
Actual Shader Performance60%vs59%
Technology28nmvs28nm
Texture Mapping Units80vs112
Texture Rate92 GTexel/svs89.6 GTexel/s
Render Output Units32vs32
Pixel Rate36.8 GPixel/svs25.6 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections2vs1
HDMI Connections1vs1
DisplayPort Connections-vs0
Comparison

GPU Power Requirements

Max Power-200 Watts
Recommended PSU500 Wattsvs500 Watts & 33 Amps

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.4vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

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

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 7870 PCS+ Vortex II Edition is a special edition of Radeon HD 7870.
This is one of today's most powerful editions of the reference as it features increases in both the core and memory clocks that went from 1000MHz to 1150MHz and from 1200MHz to 1250MHz.
Benchmarks indicate the performance boost is quite extreme and around 8% when compared to the reference Radeon HD 7870.
Overview
Radeon HD 7950 is a High-End Graphics Card based on the Graphics Core Next (GCN) Architecture.

Architecture
The GCN Architecture succeeds the 40nm Terascale Architecture. In addition to being produced with a 28nm Technology, the GCN Architecture adds other Technologies that allow for energy efficiency. For example, ZeroCore Power, a long idle power saving technology, allows the Graphics Cards to shut down by itself when the Monitor is turned off.
GCN also adds Improved Anisotropic Filtering, DirectX 11 Tessellation and the Partially Resident Textures (PRT) Technology, which enables future games to utilize ultra-high resolution textures with the same performance as today's small and often repetitive textures.

GPU
It equips a GPU Codenamed Tahiti PRO which has 28 Compute Units activated and thus offers 1792 Shader Processing Units, 112 TMUs and 32 ROPs. The Central Unit is clocked at 800MHz.

Memory
The GPU accesses a 3GB frame buffer of fast GDDR5, through a 384-bit memory interface. The size of the frame buffer is exaggerated and in no way benefits the GPU. The Memory Clock Operates at 1250MHz.

Power Consumption
With a rated board TDP of 200W, it requires at least a 500W PSU with two available 6-pin connectors.

Performance
Radeon HD 7950 used to compete with GeForce GTX 670 but its performance was even behind the lower positioned GeForce GTX 660 Ti and was later replaced by a faster Radeon HD 7950 Boost Edition.

System Suggestions
Radeon HD 7950 is best suited for resolutions up to and including 1920x1080. We recommend a Strong Processor (Intel Core i5 Quad Core/AMD FX Six Core) and 8GB of RAM for Optimal Performance.
Recommended CPU
Possible GPU Upgrades
GPU Variants
-