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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 4870 PowerColor PCS+ 512MB Edition Radeon R7 250X
Red Dead Redemption 2 317% 312%
Halo: Reach 32% 31%
Cyberpunk 2077 472% 465%
Call of Duty: Modern Warfare 317% 312%
Doom Eternal 258% 254%
Microsoft Flight Simulator 472% 465%
Grand Theft Auto VI 537% 529%
Dragon Ball Z Kakarot 157% 154%
Star Wars: Jedi - Fallen Order 472% 465%
Need For Speed Heat 317% 312%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R7 250X are marginally better than the AMD Radeon HD 4870 PowerColor PCS+ 512MB Edition.

The Radeon R7 250X has a 170 MHz higher core clock speed and the same number of Texture Mapping Units as the HD 4870. This results in the Radeon R7 250X providing 6.8 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 Radeon R7 250X has a 170 MHz higher core clock speed than the HD 4870 and the same number of Render Output Units. This results in the Radeon R7 250X providing 2.7 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 Radeon R7 250X was released over three years more recently than the HD 4870, and so the Radeon R7 250X is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the HD 4870 when running the latest games.

The Radeon R7 250X has 1536 MB more video memory than the HD 4870, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

The HD 4870 has 49.6 GB/sec greater memory bandwidth than the Radeon R7 250X, which means that the memory performance of the HD 4870 is noticeably better than the Radeon R7 250X.

The Radeon HD 4870 PowerColor PCS+ 512MB Edition has 800 Shader Processing Units and the Radeon R7 250X has 640. However, the actual shader performance of the HD 4870 is 437 and the actual shader performance of the Radeon R7 250X is 517. The Radeon R7 250X having 80 better shader performance is not particularly notable, as altogether the HD 4870 performs better when taking into account other relevant data.

The Radeon R7 250X transistor size technology is 27 nm (nanometers) smaller than the HD 4870. This means that the Radeon R7 250X is expected to run slightly cooler and achieve higher clock frequencies than the HD 4870. While they exhibit similar graphical performance, the Radeon R7 250X should consume less power than the HD 4870.

The Radeon HD 4870 PowerColor PCS+ 512MB Edition requires 150 Watts to run and the Radeon R7 250X requires 80 Watts. We would recommend a PSU with at least 500 Watts for the HD 4870 and a PSU with at least 450 Watts for the Radeon R7 250X. The HD 4870 requires 70 Watts more than the Radeon R7 250X to run. The difference is significant enough that the HD 4870 may have an adverse affect on your yearly electricity bills in comparison to the Radeon R7 250X.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed780 MHzvs950 MHz
Boost Clock-vs-
ArchitectureR700 RV770 PROGCN 1.0 Cape Verde XT
OC Potential Poor vs Fair
Driver Support Poor vs Good
Release Date25 Jun 2008vs10 Feb 2014
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs green tick
green tick vs green tick
green tick vs green tick
vs green tick
vs green tick

GPU Memory

Memory512 MBvs2048 MB
Memory Speed950 MHzvs1125 MHz
Memory Bus256 Bitvs128 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth121.6GB/secvs72GB/sec
L2 Cache 0 KB vs green tick 512 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units800vs640
Actual Shader Performance21%vs25%
Texture Mapping Units40vs40
Texture Rate31.2 GTexel/svs38 GTexel/s
Render Output Units16vs16
Pixel Rate12.5 GPixel/svs15.2 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections2vs1
HDMI Connections1vs1
DisplayPort Connections0vs-

GPU Power Requirements

Max Power150 Wattsvs80 Watts
Recommended PSU500 Watts & 37 Ampsvs450 Watts & 20 Amps

GPU Features

Shader Model4.1vs5.0
Open GL3.3vs4.4
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core 2 Duo E8600 3.33GHzvsIntel Core i3-4130 3.4GHz
Recommended RAM6 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon HD 4870 PowerColor PCS+ 512MB Edition is a special edition of AMD's High-End Radeon HD 4890, created by PowerColor.

Overclock: Central Unit
The Central Unit now runs at 780MHz, instead of 750MHz.

Overclock: Memory Clock
The Operating Memory Clock is now of 950MHz, instead of 900MHz.

Frame Buffer

Cooling Solution
PCS+ Cooling Solution.

Benchmarks indicate a 7% performance over the reference Radeon HD 4870.
Radeon R7 250X is a fast-middle-class Graphics Card based on the Graphics Core Next architecture. It offers the Cape Verde XT GPU.
The Cape Verde XT Core is a GCN 1.1 GPU and was first seen on Radeon HD 7770 and then re-used in the OEM only Radeon HD 8760.
It offers 640 Shader Processing Units, 40 TMUs and 16 ROPs, on a 128-bits memory interface of fast GDDR5.
Radeon R7 250X comes clocked at 950MHz (though there might be some 1GHz versions) and has its operating memory clock set at 1125MHz. The rated TDP board is of 80W and the release price around $99.
This card should come in 1GB and 2GB versions, though both will offer the same performance.
Its performance has proven to be exactly like Radeon HD 7770 GHz Edition (if clocked at 1GHz) and thus this card is not suited for 1080p gaming but it can handle 720p with ease. The 950MHz versions will be around 3% slower.
Recommended CPU
Possible GPU Upgrades
GPU Variants