Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game HD i7 4790K Radeon R7 250X
Red Dead Redemption 2 1238% 312%
Doom Eternal 1050% 254%
Cyberpunk 2077 1738% 465%
Call of Duty: Modern Warfare 1238% 312%
Dragon Ball Z Kakarot 725% 154%
Microsoft Flight Simulator 1738% 465%
Star Wars: Jedi - Fallen Order 1738% 465%
Grand Theft Auto VI 1944% 529%
Need For Speed Heat 1238% 312%
Warcraft 3: Reforged 49% 84%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R7 250X are massively better than the Intel HD i7 4790K.

The Radeon R7 250X has a 600 MHz higher core clock speed and 36 more Texture Mapping Units than the HD i7 4790K. This results in the Radeon R7 250X providing 36.6 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 600 MHz higher core clock speed and 14 more Render Output Units than the HD i7 4790K. This results in the Radeon R7 250X providing 14.5 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 i7 4790K was released less than a year after the Radeon R7 250X, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The Radeon R7 250X has 2048 MB video memory, but the HD i7 4790K does not have an entry, so the two GPUs cannot be reliably compared in this area.

The HD i7 4790K has 20 Shader Processing Units and the Radeon R7 250X has 640. However, the actual shader performance of the HD i7 4790K is 100 and the actual shader performance of the Radeon R7 250X is 517. The Radeon R7 250X having 417 better shader performance and an altogether better performance when taking into account other relevant data means that the Radeon R7 250X delivers a massively smoother and more efficient experience when processing graphical data than the HD i7 4790K.

The HD i7 4790K transistor size technology is 6 nm (nanometers) smaller than the Radeon R7 250X. This means that the HD i7 4790K is expected to run very slightly cooler and achieve higher clock frequencies than the Radeon R7 250X.

The HD i7 4790K requires 88 Watts to run and the Radeon R7 250X requires 80 Watts. We would recommend a PSU with at least 300 Watts for the HD i7 4790K and a PSU with at least 450 Watts for the Radeon R7 250X. The HD i7 4790K requires 8 Watts more than the Radeon R7 250X to run. The difference is not significant enough for the HD i7 4790K to have a noticeably larger impact on your yearly electricity bills than the Radeon R7 250X.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed350 MHzvs950 MHz
Boost Clock1250 MHzvs-
ArchitectureHaswell GT2-MBGCN 1.0 Cape Verde XT
OC Potential None vs Fair
Driver Support Ok vs Good
Release Date22 Jun 2014vs10 Feb 2014
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
vs green tick
vs green tick
vs green tick
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GPU Memory

MemoryN/Avs2048 MB
Memory Speed800 MHzvs1125 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth25.6GB/secvs72GB/sec
L2 Cache 1024 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 Units20vs640
Actual Shader Performance5%vs25%
Texture Mapping Units4vs40
Texture Rate1.4 GTexel/svs38 GTexel/s
Render Output Units2vs16
Pixel Rate0.7 GPixel/svs15.2 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs4096x2160
VGA Connections0vs0
DVI Connections0vs1
HDMI Connections0vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power88 Wattsvs80 Watts
Recommended PSU300 Watts & 22 Ampsvs450 Watts & 20 Amps

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4790K 4-Core 4.0GHzvsIntel Core i3-4130 3.4GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Intel HD i7 4790K is the specific version of Intel HD Graphics 4600 Desktop that is Integrated in the Core i7-4790K Processor.

The Central Unit Initially Runs at 350MHz and goes up to 1250MHz, in Turbo Mode.

Frame Buffer: Up to 1.7GB.

Memory Channel: 64-bit Or 128-bit.

Memory Clock: Up to 800MHz.

Memory Bandwidth: It is then obvious the Memory Bandwidth depends on a lot of factors and thus this Graphics Card performance may vary heavily from system to system.

Gaming Benchmarks Indicate its Performance is Similar to of a Dedicated GeForce GT 220.

System Suggestions
We recommend 4GB of RAM for a system with Intel HD i7 4790K.
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