http://www.tomshardware.co.uk/gaming-graphics-card-review,review-32899-6.html
Best PCI Express (PCIe) Card For £60:
GeForce GT 640
since its price dropped a little, we're shifting our entry-level recommendation to Nvidia's GeForce GT 640. The card comes armed with enough graphics processing horsepower to drive a majority of modern games at 720p (and even 1080p in some titles). This is a good starting point for gamers on a tight budget.
Best PCI Express (PCIe) Card For ~£70:
Radeon HD 7770/Radeon R7 250X
AMD's Radeon HD 7770, recently re-branded as the Radeon R7 250X, can now be found for around £90. It offers playable frame rates at high-def resolutions in all but the most demanding games. And it sports a fairly fantastic price/performance ratio in the lower-mainstream segment. With that said, if you can afford the extra £10 for the Radeon R7 260X, the step up is worthwhile.
Best PCI Express (PCIe) Card For £90:
Radeon R7 260X
With Nvidia's new GeForce GTX 750 Ti selling for a little more than last month, the Radeon R7 260X grabs our top recommendation for under £100. This card is equivalent to an overclocked Radeon HD 7790 with AMD's TrueAudio feature enabled, and it's quite capable of playing most games at 1080p using medium-quality detail settings.
Honourable Mention
GeForce GTX 750 Ti
While the Radeon R7 260X offers similar performance for considerably less money, gamers who want to upgrade an entry-level PC with a low-output power supply may consider the GeForce GTX 750 Ti, which is rated at 60 W (a little more than half of the 260X's 115 W). Nvidia suggests you use at least a 300 W power supply with this card. That's a very low bar to set for owners of low-end machines. You don't even need a six-pin auxiliary connector. The GTX 750 Ti doesn't earn a full recommendation for value, but it just may be the best option for gamers upgrading old or small form factor systems.
Best PCIe Card For ~£115:
Radeon R7 265
The Radeon R7 265 offers significantly higher frame rates than the Radeon R7 260X and GeForce GTX 750 Ti for a small price premium. Essentially, this is an overclocked Radeon HD 7850 that delivers performance competitive with Nvidia's GeForce GTX 660. As such, it deserves a recommendation at the £115 price point.
Best PCIe Card For ~£130:
Radeon R9 270
AMD's Radeon R9 270 offers performance equal to the Radeon HD 7870 it replaces, which is a little better than Nvidia's GeForce GTX 660. At £130, this card earns our sole recommendation. It's a serious gaming board capable of playable frame rates at relatively high resolutions.
Best PCIe Card For ~£190:
GeForce GTX 760
Upon its release, the GeForce GTX 760 introduced GeForce GTX 670- and Radeon HD 7950-class speed at a sub-£200 price point, displacing the Tahiti-based Radeon HD 7870 LE with even more performance for the money. As a result, this GK104-powered card is one of our favorite recommendations for frame rate-hungry gamers.
Best PCIe Card For ~£230:
Radeon R9 280X
AMD essentially took its Radeon HD 7970 GHz Edition, shaved 50 MHz from the peak clock rate, and rebranded the board as a Radeon R9 280X. The good news this month is that the 280X's price has slipped, making it an easy recommendation for a card that powers through 1920x1080 and is usually playable at 2560x1440 with taxing detail settings enabled.
Best PCIe Card For ~£260:
GeForce GTX 770
The GeForce GTX 770 might be a newer model, but it's basically a GK104-powered GeForce GTX 680 with higher clock rates, improved cooling, and a lower price tag. We're not big fans of re-branding existing hardware with fresh nomenclature, but the GeForce GTX 770 earns our respect for delivering very high performance at a reasonable price point (in this case, £270). With the Radeon R9 280X suffering under a huge price hike, Nvidia's GeForce GTX 770 owns this space with no competition.
Best PCI Express (PCIe) Card For ~£350:
Radeon R9 290
The Radeon R9 290 employs AMD's Hawaii GPU with four of its 44 Compute Units disabled, yielding a board with 2560 shaders and 160 texture units. The back-end persists, including a 512-bit aggregate memory bus and 64 ROPS. What you're left with is a very capable high-end gaming card for significantly less money than the 290X. A loud reference cooler might have you considering Nvidia's GeForce GTX 780 for a few pounds more. However, the 290 makes good sense outfitted with a third-party heat sink and fan.
Honourable Mention:
Radeon R9 290X
AMD's Radeon R9 290X set a high bar for single-GPU performance when it launched, earning our Tom's Hardware Elite award in the process. Although Nvidia leap-frogged it with the GeForce GTX 780 Ti, the Hawaii-powered board is no slouch. At under £400 it's significantly cheaper than Nvidia's GeForce GTX 780 Ti, and while we weren't impressed with the reference cooler, it's much easier to live with now that quieter aftermarket cooling options are available.
GeForce GTX 780 Ti
Nvidia's GeForce GTX 780 Ti is the fastest single-GPU graphics card available. Introduced shortly after AMD's Radeon R9 290X, the flagship GeForce features a fully-enabled GK110 GPU with all 2880 of its CUDA cores enabled and backed by 1750 MHz GDDR5 graphics RAM. The 780 Ti only includes 3 GB of on-board memory and is hobbled in FP64 math; however, it's unquestionably faster than the GeForce GTX Titan in games. The relatively high cost might prevent it from being a value leader, but we're giving the GeForce GTX 780 Ti an honorable mention for its blazing-fast performance.
Honourable Mention:
Radeon R9 295X2
AMD doesn't have the best track record when it comes to reference-class thermal solutions, but the company made the right decision in pairing its dual-GPU flagship with a closed-loop liquid cooler. Armed with a staggering 5632 shaders operating at a slightly higher frequency than the Radeon R9 290X, AMD's 295X2 is the fastest graphics card that money can buy. Nvidia is expected to introduce its dual-GK110-equipped GeForce GTX Titan Z soon, but its specs fall well short of what this Radeon can do.
Best PCI Express (PCIe) Card For £60:
GeForce GT 640
since its price dropped a little, we're shifting our entry-level recommendation to Nvidia's GeForce GT 640. The card comes armed with enough graphics processing horsepower to drive a majority of modern games at 720p (and even 1080p in some titles). This is a good starting point for gamers on a tight budget.
Best PCI Express (PCIe) Card For ~£70:
Radeon HD 7770/Radeon R7 250X
AMD's Radeon HD 7770, recently re-branded as the Radeon R7 250X, can now be found for around £90. It offers playable frame rates at high-def resolutions in all but the most demanding games. And it sports a fairly fantastic price/performance ratio in the lower-mainstream segment. With that said, if you can afford the extra £10 for the Radeon R7 260X, the step up is worthwhile.
Best PCI Express (PCIe) Card For £90:
Radeon R7 260X
With Nvidia's new GeForce GTX 750 Ti selling for a little more than last month, the Radeon R7 260X grabs our top recommendation for under £100. This card is equivalent to an overclocked Radeon HD 7790 with AMD's TrueAudio feature enabled, and it's quite capable of playing most games at 1080p using medium-quality detail settings.
Honourable Mention
GeForce GTX 750 Ti
While the Radeon R7 260X offers similar performance for considerably less money, gamers who want to upgrade an entry-level PC with a low-output power supply may consider the GeForce GTX 750 Ti, which is rated at 60 W (a little more than half of the 260X's 115 W). Nvidia suggests you use at least a 300 W power supply with this card. That's a very low bar to set for owners of low-end machines. You don't even need a six-pin auxiliary connector. The GTX 750 Ti doesn't earn a full recommendation for value, but it just may be the best option for gamers upgrading old or small form factor systems.
Best PCIe Card For ~£115:
Radeon R7 265
The Radeon R7 265 offers significantly higher frame rates than the Radeon R7 260X and GeForce GTX 750 Ti for a small price premium. Essentially, this is an overclocked Radeon HD 7850 that delivers performance competitive with Nvidia's GeForce GTX 660. As such, it deserves a recommendation at the £115 price point.
Best PCIe Card For ~£130:
Radeon R9 270
AMD's Radeon R9 270 offers performance equal to the Radeon HD 7870 it replaces, which is a little better than Nvidia's GeForce GTX 660. At £130, this card earns our sole recommendation. It's a serious gaming board capable of playable frame rates at relatively high resolutions.
Best PCIe Card For ~£190:
GeForce GTX 760
Upon its release, the GeForce GTX 760 introduced GeForce GTX 670- and Radeon HD 7950-class speed at a sub-£200 price point, displacing the Tahiti-based Radeon HD 7870 LE with even more performance for the money. As a result, this GK104-powered card is one of our favorite recommendations for frame rate-hungry gamers.
Best PCIe Card For ~£230:
Radeon R9 280X
AMD essentially took its Radeon HD 7970 GHz Edition, shaved 50 MHz from the peak clock rate, and rebranded the board as a Radeon R9 280X. The good news this month is that the 280X's price has slipped, making it an easy recommendation for a card that powers through 1920x1080 and is usually playable at 2560x1440 with taxing detail settings enabled.
Best PCIe Card For ~£260:
GeForce GTX 770
The GeForce GTX 770 might be a newer model, but it's basically a GK104-powered GeForce GTX 680 with higher clock rates, improved cooling, and a lower price tag. We're not big fans of re-branding existing hardware with fresh nomenclature, but the GeForce GTX 770 earns our respect for delivering very high performance at a reasonable price point (in this case, £270). With the Radeon R9 280X suffering under a huge price hike, Nvidia's GeForce GTX 770 owns this space with no competition.
Best PCI Express (PCIe) Card For ~£350:
Radeon R9 290
The Radeon R9 290 employs AMD's Hawaii GPU with four of its 44 Compute Units disabled, yielding a board with 2560 shaders and 160 texture units. The back-end persists, including a 512-bit aggregate memory bus and 64 ROPS. What you're left with is a very capable high-end gaming card for significantly less money than the 290X. A loud reference cooler might have you considering Nvidia's GeForce GTX 780 for a few pounds more. However, the 290 makes good sense outfitted with a third-party heat sink and fan.
Honourable Mention:
Radeon R9 290X
AMD's Radeon R9 290X set a high bar for single-GPU performance when it launched, earning our Tom's Hardware Elite award in the process. Although Nvidia leap-frogged it with the GeForce GTX 780 Ti, the Hawaii-powered board is no slouch. At under £400 it's significantly cheaper than Nvidia's GeForce GTX 780 Ti, and while we weren't impressed with the reference cooler, it's much easier to live with now that quieter aftermarket cooling options are available.
GeForce GTX 780 Ti
Nvidia's GeForce GTX 780 Ti is the fastest single-GPU graphics card available. Introduced shortly after AMD's Radeon R9 290X, the flagship GeForce features a fully-enabled GK110 GPU with all 2880 of its CUDA cores enabled and backed by 1750 MHz GDDR5 graphics RAM. The 780 Ti only includes 3 GB of on-board memory and is hobbled in FP64 math; however, it's unquestionably faster than the GeForce GTX Titan in games. The relatively high cost might prevent it from being a value leader, but we're giving the GeForce GTX 780 Ti an honorable mention for its blazing-fast performance.
Honourable Mention:
Radeon R9 295X2
AMD doesn't have the best track record when it comes to reference-class thermal solutions, but the company made the right decision in pairing its dual-GPU flagship with a closed-loop liquid cooler. Armed with a staggering 5632 shaders operating at a slightly higher frequency than the Radeon R9 290X, AMD's 295X2 is the fastest graphics card that money can buy. Nvidia is expected to introduce its dual-GK110-equipped GeForce GTX Titan Z soon, but its specs fall well short of what this Radeon can do.