Buying Guide
The Best GPU Upgrades for an Existing PC
Five cards chosen for drop-in upgrades, with the power supply, connector and case length each one needs listed up front.
By The PC Journal editorial team
12 min read5 products evaluated
An upgrade has to fit a PC you already own. Before choosing, check your power supply's wattage and PCIe connectors, the gap in front of the card in your case, and whether your board has a PCIe x16 slot.
We compared connectors, recommended PSU and size from each listing and the chipmakers' guidance; we did not install these cards in test systems.
Quick Picks
Our 5 recommendations at a glance. Tap a pick for the full verdict.
Biggest Upgrade
GIGABYTE Radeon RX 9070 XT Gaming OC 16G
An RX 9070 XT with 16GB of GDDR6.
Best for: PCs with a 750W or larger supply.
Our take Check price for GIGABYTE Radeon RX 9070 XT Gaming OC 16G (opens in a new tab)
Best NVIDIA Upgrade
ASUS Prime GeForce RTX 5070 12GB OC
A 2.5-slot SFF-Ready RTX 5070.
Best for: Mid-tower PCs with a modern PSU.
Our take Check price for ASUS Prime GeForce RTX 5070 12GB OC (opens in a new tab)
Best 16GB Upgrade
ASUS Dual Radeon RX 9060 XT 16GB
An RX 9060 XT with 16GB of GDDR6.
Best for: Replacing an older 8GB card.
Our take Check price for ASUS Dual Radeon RX 9060 XT 16GB (opens in a new tab)
Best Previous-Gen Upgrade
MSI GeForce RTX 4070 Ventus 3X E1 12G OC
An RTX 4070 with 12GB and three DisplayPort outputs.
Best for: Older PCs moving to 12GB.
Our take Check price for MSI GeForce RTX 4070 Ventus 3X E1 12G OC (opens in a new tab)
Simplest Upgrade
ASRock Radeon RX 7600 Challenger Pro 8GB OC
An RX 7600 with 8GB of GDDR6.
Best for: Replacing a GTX-era card on a budget.
Our take Check price for ASRock Radeon RX 7600 Challenger Pro 8GB OC (opens in a new tab)
Our Picks
Biggest Upgrade1 of 5
GIGABYTE Radeon RX 9070 XT Gaming OC 16G on Amazon (opens in a new tab)
Gigabyte's RX 9070 XT Gaming OC pairs AMD's top RDNA 4 chip with 16GB of GDDR6 and a WINDFORCE cooler.
Best for
- PCs with a 750W or larger supply.
Skip if
- Its cooler thickness is not published, which rules it out if you need that number.
Why we like it
At the time of writing it cost about half as much as the RTX 5080 cards we researched, which makes it the strongest value in the upper tiers. It matches the ASUS Dual 9060 XT 16GB on video memory (16GB). No other pick in this guide offers an RX 9070 XT gpu; compare the MSI 4070 Ventus 3X E1, which has an RTX 4070 gpu.
It also offers server-grade thermal conductive gel and RGB lighting. No dimensions are published for the Gigabyte RX 9070 XT Gaming OC; get length and thickness from the maker's page first. On price it sat fourth of 5, between the cheaper MSI 4070 Ventus 3X E1 and the pricier ASUS Prime RTX 5070, at the time of writing. The maker doesn't give its cooler thickness; if that figure matters, the ASUS Prime RTX 5070 comes in at 2.5-slot.
Key dimensions & specs
- GPU: RX 9070 XT
- VRAM: 16GB
- Memory: GDDR6
Pros
- 16GB of VRAM for high-resolution textures
- WINDFORCE cooler with Hawk fans
- Server-grade thermal conductive gel
- RGB lighting
Cons
- No published cooler thickness
- Costs more than the ASRock RX 7600 Challenger Pro at the time of writing
Best NVIDIA Upgrade2 of 5
ASUS Prime GeForce RTX 5070 12GB OC on Amazon (opens in a new tab)
The ASUS Prime RTX 5070 is a 2.5-slot, SFF-Ready card with a quiet/performance BIOS switch.
Best for
- Mid-tower PCs with a modern PSU.
Skip if
- Price-first buyers should look at the ASRock RX 7600 Challenger Pro, which cost less when we checked.
Why we like it
Its 12GB of GDDR7 is enough for most games at 1440p, though less than the 16GB AMD cards here. On video memory it ties with the MSI 4070 Ventus 3X E1 at 12GB. You get an RTX 5070 gpu here, which sets it apart from the ASRock RX 7600 Challenger Pro and its an RX 7600 gpu.
No other pick in this guide offers GDDR7 memory; compare the MSI 4070 Ventus 3X E1, which has GDDR6 memory. It is the only pick here with a 2587MHz (OC mode) boost clock; the MSI 4070 Ventus 3X E1 has a 2520MHz boost clock instead. It also comes with dual-ball fan bearings and a phase-change GPU thermal pad.
The ASUS Prime RTX 5070 occupies 2.5 slots, but no length is published, so check the maker's spec page against your case. At our last price check it topped the group, with the Gigabyte RX 9070 XT Gaming OC the nearest cheaper option.
Key dimensions & specs
- GPU: RTX 5070
- VRAM: 12GB
- Memory: GDDR7
- Thickness: 2.5-slot
- Boost clock: 2587MHz (OC mode)
- SFF-Ready: Yes
Pros
- 12GB of VRAM, more than 8GB cards
- Faster GDDR7 memory
- Carries NVIDIA's SFF-Ready label
- Quiet/performance dual BIOS switch
Cons
- Costs more than the ASRock RX 7600 Challenger Pro at the time of writing
Best 16GB Upgrade3 of 5
ASUS Dual Radeon RX 9060 XT 16GB on Amazon (opens in a new tab)
The ASUS Dual RX 9060 XT 16GB offers a 3250MHz boost in OC mode with Quiet and Performance BIOS profiles and 0dB fan stop.
Best for
- Replacing an older 8GB card.
Skip if
- Price-first buyers should look at the ASRock RX 7600 Challenger Pro, which cost less when we checked.
Why we like it
On video memory it ties with the Gigabyte RX 9070 XT Gaming OC at 16GB. An RX 9060 XT gpu is unique to it among these picks, while the ASUS Prime RTX 5070 uses an RTX 5070 gpu. No other pick in this guide offers a 3250MHz (OC mode) boost clock; compare the MSI 4070 Ventus 3X E1, which has a 2520MHz boost clock.
The ASUS Dual 9060 XT 16GB occupies 2.5 slots, but no length is published, so check the maker's spec page against your case. Its power connector and recommended PSU are not published, so confirm both for the ASUS Dual 9060 XT 16GB with the maker. It was priced above the ASRock RX 7600 Challenger Pro and below the MSI 4070 Ventus 3X E1 at the time of writing.
Key dimensions & specs
- GPU: RX 9060 XT
- VRAM: 16GB
- Memory: GDDR6
- Thickness: 2.5-slot
- Boost clock: 3250MHz (OC mode)
Pros
- 16GB of VRAM for high-resolution textures
- Dual BIOS switch with Quiet and Performance profiles
- 0dB fan stop at light load
- RX 9060 XT gpu, the only one here
Cons
- Costs more than the ASRock RX 7600 Challenger Pro at the time of writing
Best Previous-Gen Upgrade4 of 5
MSI GeForce RTX 4070 Ventus 3X E1 12G OC on Amazon (opens in a new tab)
MSI's Ventus 3X E1 is a triple-fan RTX 4070 that uses GDDR6 memory rather than the GDDR6X on the other 4070 cards here, with a 2520MHz boost.
Best for
- Older PCs moving to 12GB.
Skip if
- Its cooler thickness is not published, which rules it out if you need that number.
Why we like it
It has three DisplayPort 1.4a outputs and one HDMI 2.1a on a 192-bit memory interface. It uses the GeForce RTX 4070 chip with MSI's three-fan cooler. It matches the ASUS Prime RTX 5070 on video memory (12GB).
No other pick in this guide offers an RTX 4070 gpu; compare the ASUS Dual 9060 XT 16GB, which has an RX 9060 XT gpu. You get a 2520MHz boost clock here, which sets it apart from the ASRock RX 7600 Challenger Pro and its a 2695MHz boost clock. No dimensions are published for the MSI 4070 Ventus 3X E1; get length and thickness from the maker's page first.
On price it sat third of 5, between the cheaper ASUS Dual 9060 XT 16GB and the pricier Gigabyte RX 9070 XT Gaming OC, at the time of writing. The maker doesn't give its cooler thickness; if that figure matters, the ASUS Prime RTX 5070 comes in at 2.5-slot.
Key dimensions & specs
- GPU: RTX 4070
- VRAM: 12GB
- Memory: GDDR6
- Boost clock: 2520MHz
- Outputs: 3 x DisplayPort 1.4a, 1 x HDMI 2.1a
Pros
- 12GB of VRAM, more than 8GB cards
- Triple-fan Ventus cooler
- GDDR6 memory rather than the GDDR6X on other 4070 cards
- RTX 4070 gpu, the only one here
Cons
- No published cooler thickness
- Costs more than the ASRock RX 7600 Challenger Pro at the time of writing
Simplest Upgrade5 of 5
ASRock Radeon RX 7600 Challenger Pro 8GB OC on Amazon (opens in a new tab)
The RX 7600 is a previous-generation chip, but ASRock's Challenger Pro version asks only for a 550W power supply and uses a triple-fan cooler.
Best for
- Replacing a GTX-era card on a budget.
Skip if
- Pass on it if 8GB of VRAM may force lower texture settings in some recent game rules it out for your setup.
Why we like it
Its PCIe 4.0 x8 link is worth noting on older PCIe 3.0 boards. On video memory it trails the group at 8GB, while the Gigabyte RX 9070 XT Gaming OC offers 16GB. An RX 7600 gpu is unique to it among these picks, while the ASUS Prime RTX 5070 uses an RTX 5070 gpu.
No other pick in this guide offers a 2695MHz boost clock; compare the ASUS Dual 9060 XT 16GB, which has a 3250MHz (OC mode) boost clock. You also get 32MB of Infinity Cache and a metal backplate. Measure for 303mm and 2.5 slots before ordering the ASRock RX 7600 Challenger Pro.
Power for the ASRock RX 7600 Challenger Pro comes through 1 x 8-pin, with 550W the maker's minimum PSU. It cost the least of the 5 picks at the time of writing, with the ASUS Dual 9060 XT 16GB the next step up.
Key dimensions & specs
- GPU: RX 7600
- VRAM: 8GB
- Memory: GDDR6
- Length: 303mm
- Thickness: 2.5-slot
- Recommended PSU: 550W
- Power connector: 1 x 8-pin
- Boost clock: 2695MHz
- Outputs: 3 x DisplayPort 1.4a, 1 x HDMI 2.1
Pros
- A modest 550W PSU recommendation
- A single 8-pin power connector
- Triple-fan cooler with 0dB fan stop
- 32MB of Infinity Cache
Cons
- 8GB of VRAM may force lower texture settings in some recent games
- Video memory trails the Gigabyte RX 9070 XT Gaming OC (16GB)
How We Chose These GPU Upgrades
Each pick was assessed across 4 criteria weighted for real-world use.
- GPU and memory
- We compared the chip, video memory capacity and memory type stated in each listing.
- Fit
- We recorded length and slot thickness where the maker lists them, plus low-profile and SFF-Ready status.
- Price tier
- We grouped picks by price at the time of writing rather than by listed clock speed.
- Power
- We noted the power connector and recommended power supply where listed.
What to Look for in a GPU Upgrade
Key buying criteria so you get the right fit the first time.
Plan the power connector and PSU
Cards use one or two 8-pin PCIe plugs or a single 16-pin 12V-2x6 plug. Confirm your power supply has the right cables and meets the maker's recommended wattage.
Pair it with a balanced CPU
A fast card with an old CPU can stall at high frame rates, especially at 1080p. At 4K the GPU does most of the work, so the CPU matters less.
Check length and thickness
Partner cards of the same GPU can differ by several centimetres. Compare the card's length with the case's GPU clearance, allowing for front fans or a radiator, and check how many slots it covers.
Match the card to your monitor
Resolution and refresh rate decide how much GPU you need. A 1080p screen at 144Hz asks far less than 1440p at 165Hz or 4K.
Buy for the monitor you use now or will buy soon, not for a resolution you may never run.
Count the display outputs
Most cards offer three DisplayPort outputs and one HDMI, but some swap that balance. Check that the ports match your monitors, TV or VR headset.
Cooler size affects noise
Larger triple-fan coolers usually run quieter under load than compact dual-fan designs. A 0dB mode stops the fans at light load.
How to Choose a GPU Upgrade
By priority
| Priority | Consider | Why |
|---|---|---|
| PCs with a 750W or larger supply | Gigabyte RX 9070 XT Gaming OC | An RX 9070 XT with 16GB of GDDR6 |
| Mid-tower PCs with a modern PSU | ASUS Prime RTX 5070 | A 2.5-slot SFF-Ready RTX 5070 |
| Replacing an older 8GB card | ASUS Dual 9060 XT 16GB | An RX 9060 XT with 16GB of GDDR6 |
| Older PCs moving to 12GB | MSI 4070 Ventus 3X E1 | An RTX 4070 with 12GB and three DisplayPort outputs |
| Replacing a GTX-era card on a budget | ASRock RX 7600 Challenger Pro | An RX 7600 with 8GB of GDDR6 |
Scroll sideways to see every column.
Key specs side by side
Figures as each maker states them.
| Card | GPU | VRAM | Memory | Thickness |
|---|---|---|---|---|
| Gigabyte RX 9070 XT Gaming OC | RX 9070 XT | 16GB | GDDR6 | Not listed |
| ASUS Prime RTX 5070 | RTX 5070 | 12GB | GDDR7 | 2.5-slot |
| ASUS Dual 9060 XT 16GB | RX 9060 XT | 16GB | GDDR6 | 2.5-slot |
| MSI 4070 Ventus 3X E1 | RTX 4070 | 12GB | GDDR6 | Not listed |
| ASRock RX 7600 Challenger Pro | RX 7600 | 8GB | GDDR6 | 2.5-slot |
Scroll sideways to see every column.
By price at the time of writing
Prices change often; these tiers reflect Amazon prices when this guide was updated.
| Price tier | Cards |
|---|---|
| About $250 to $500 | ASRock RX 7600 Challenger Pro |
| About $500 to $1000 | ASUS Dual 9060 XT 16GB, MSI 4070 Ventus 3X E1, Gigabyte RX 9070 XT Gaming OC, ASUS Prime RTX 5070 |
Frequently Asked Questions
How big a power supply do I need?
Use the maker's recommendation for your exact card, then add headroom if you run a high-power CPU. Also check the connectors, not just the wattage.
Will a PCIe 5.0 card work in a PCIe 4.0 or 3.0 slot?
Yes, the interface is backward compatible. Cards with a narrow x8 link can lose some performance on PCIe 3.0 boards.
Is an 8GB graphics card still enough?
For 1080p with tuned texture settings, often yes. For 1440p or high textures in new games, 12GB or 16GB is safer.
Will my CPU hold the card back?
It depends on resolution and the games you play. At 1080p and high refresh rates the CPU matters more; at 4K the GPU sets the limit.
Do partner cards of the same GPU perform differently?
Only slightly. Factory overclocks add a few percent at most; cooling, noise, size and price differ more.
Should I choose AMD or NVIDIA?
Compare price and memory at your budget first, then features such as DLSS or FSR support in your games and hardware encoding if you stream.
Bottom Line
The Gigabyte RX 9070 XT Gaming OC is the biggest step up for a PC with a capable supply. The ASUS Prime RTX 5070 is the NVIDIA upgrade, the ASUS Dual RX 9060 XT 16GB replaces an older 8GB card, the MSI RTX 4070 Ventus 3X E1 is a previous-gen option, and the ASRock RX 7600 is the simplest swap.