Radeon RX 7900 XT vs GeForce GTX 660
Aggregate performance score
We've compared GeForce GTX 660 and Radeon RX 7900 XT, covering specs and all relevant benchmarks.
7900 XT outperforms GTX 660 by a whopping 620% based on our aggregate benchmark results.
Contents
Primary details
GPU architecture, market segment, value for money and other general parameters compared.
| Place in the ranking | 509 | 20 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.09 | 42.62 |
| Power efficiency | 5.38 | 18.07 |
| Architecture | Kepler (2012−2018) | RDNA 3.0 (2022−2026) |
| GPU code name | GK106 | Navi 31 |
| Market segment | Desktop | Desktop |
| Release date | 6 September 2012 (14 years ago) | 3 November 2022 (3 years ago) |
| Launch price (MSRP) | $229 | $899 |
Cost-effectiveness evaluation
The higher the ratio, the better. We use the manufacturer's recommended prices.
RX 7900 XT has 1279% better value for money than GTX 660.
Performance to price scatter graph
Currently popular graphics cards are shown for comparison.
Detailed specifications
General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Real power consumption of some graphics cards can well exceed their nominal TDP, especially if overclocked.
| Pipelines / CUDA cores | 960 | 5376 |
| Core clock speed | 980 MHz | 1387 MHz |
| Boost clock speed | 1033 MHz | 2394 MHz |
| Number of transistors | 2,540 million | 57,700 million |
| Manufacturing process technology | 28 nm | 5 nm |
| Power consumption (TDP) | 140 Watt | 300 Watt |
| Texture fill rate | 82.56 | 804.4 |
| Floating-point processing power | 1.981 TFLOPS | 51.48 TFLOPS |
| ROPs | 24 | 192 |
| TMUs | 80 | 336 |
| Ray Tracing Cores | no data | 84 |
| L0 Cache | no data | 2.6 MB |
| L1 Cache | 80 KB | 3 MB |
| L2 Cache | 384 KB | 6 MB |
| L3 Cache | no data | 80 MB |
Form factor & compatibility
Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
| Bus support | PCI Express 3.0 | no data |
| Interface | PCIe 3.0 x16 | PCIe 4.0 x16 |
| Length | 241 mm | 276 mm |
| Height | 4.376" (11.1 cm) | no data |
| Width | 2-slot | 2-slot |
| Supplementary power connectors | 1x 6-pin | 2x 8-pin |
| SLI options | + | - |
VRAM capacity and type
Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.
| Memory type | GDDR5 | GDDR6 |
| Maximum RAM amount | 2 GB | 20 GB |
| Memory bus width | 192-bit GDDR5 | 320 Bit |
| Memory clock speed | 6.0 GB/s | 2500 MHz |
| Memory bandwidth | 144.2 GB/s | 800.0 GB/s |
| Shared memory | - | - |
| Resizable BAR | - | + |
Connectivity and outputs
This section shows the types and number of video connectors on each GPU. The data applies specifically to desktop reference models (for example, NVIDIA’s Founders Edition). OEM partners often modify both the number and types of ports. On notebook GPUs, video‐output options are determined by the laptop’s design rather than the graphics chip itself.
| Display Connectors | One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort | 1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-C |
| Multi monitor support | 4 displays | no data |
| HDMI | + | + |
| HDCP | + | - |
| Maximum VGA resolution | 2048x1536 | no data |
| Audio input for HDMI | Internal | no data |
Supported technologies
Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.
| 3D Blu-Ray | + | - |
| 3D Gaming | + | - |
| 3D Vision | + | - |
API and SDK support
List of supported 3D and general-purpose computing APIs, including their specific versions.
| DirectX | 12 (11_0) | 12 Ultimate (12_2) |
| Shader Model | 5.1 | 6.8 |
| OpenGL | 4.3 | 4.6 |
| OpenCL | 1.2 | 2.2 |
| Vulkan | 1.1.126 | 1.3 |
| CUDA | + | - |
Synthetic benchmarks
Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.
Combined synthetic benchmark score
This is our combined benchmark score.
Passmark
This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.
3DMark Fire Strike Graphics
Fire Strike is a DirectX 11 benchmark for gaming PCs. It features two separate tests displaying a fight between a humanoid and a fiery creature made of lava. Using 1920x1080 resolution, Fire Strike shows off some realistic graphics and is quite taxing on hardware.
GeekBench 5 OpenCL
Geekbench 5 is a widespread graphics card benchmark combined from 11 different test scenarios. All these scenarios rely on direct usage of GPU's processing power, no 3D rendering is involved. This variation uses OpenCL API by Khronos Group.
Gaming performance
Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.
Average FPS across all PC games
Here are the average frames per second in a large set of popular games across different resolutions:
| Full HD | 47 | 199
+323%
|
| 1440p | 18−20
−86.7%
| 135 |
| 4K | 10−12 | 85
+750%
|
Cost per frame, $
| 1080p | 4.87 | 4.52
+7.3%
|
| 1440p | 12.72 | 6.66
+47.7%
|
| 4K | 22.90 | 10.58
+53.8%
|
- RX 7900 XT has 7% lower cost per frame in 1080p
- RX 7900 XT has 48% lower cost per frame in 1440p
- RX 7900 XT has 54% lower cost per frame in 4K
FPS performance in popular games
Full HD
Low
| Atomic Heart | 328 | 328 |
| Counter-Strike 2 | 300−350 | 300−350 |
| Cyberpunk 2077 | 237 | 237 |
| Resident Evil 4 Remake | 307 | 307 |
Full HD
Medium
| Atomic Heart | 262 | 262 |
| Battlefield 5 | 180−190 | 180−190 |
| Counter-Strike 2 | 288 | 288 |
| Cyberpunk 2077 | 212 | 212 |
| Far Cry 5 | 196 | 196 |
| Fortnite | 300−350 | 300−350 |
| Forza Horizon 4 | 280−290 | 280−290 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| Valorant | 400−450 | 400−450 |
Full HD
High
| Atomic Heart | 170 | 170 |
| Battlefield 5 | 180−190 | 180−190 |
| Counter-Strike 2 | 268 | 268 |
| Counter-Strike: Global Offensive | 270−280 | 270−280 |
| Cyberpunk 2077 | 190 | 190 |
| Dota 2 | 199 | 199 |
| Far Cry 5 | 187 | 187 |
| Fortnite | 300−350 | 300−350 |
| Forza Horizon 4 | 280−290 | 280−290 |
| Grand Theft Auto V | 173 | 173 |
| Metro Exodus | 146 | 146 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| The Witcher 3: Wild Hunt | 483 | 483 |
| Valorant | 400−450 | 400−450 |
Full HD
Ultra
| Battlefield 5 | 180−190 | 180−190 |
| Cyberpunk 2077 | 179 | 179 |
| Dota 2 | 184 | 184 |
| Far Cry 5 | 173 | 173 |
| Forza Horizon 4 | 280−290 | 280−290 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| The Witcher 3: Wild Hunt | 255 | 255 |
| Valorant | 400−450 | 400−450 |
Full HD
Epic
| Fortnite | 300−350 | 300−350 |
1440p
High
| Counter-Strike 2 | 206 | 206 |
| Counter-Strike: Global Offensive | 500−550 | 500−550 |
| Grand Theft Auto V | 159 | 159 |
| Metro Exodus | 135 | 135 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 170−180 | 170−180 |
| Valorant | 450−500 | 450−500 |
1440p
Ultra
| Battlefield 5 | 180−190 | 180−190 |
| Cyberpunk 2077 | 122 | 122 |
| Far Cry 5 | 173 | 173 |
| Forza Horizon 4 | 240−250 | 240−250 |
| The Witcher 3: Wild Hunt | 179 | 179 |
1440p
Epic
| Fortnite | 150−160 | 150−160 |
4K
High
| Atomic Heart | 65−70 | 65−70 |
| Counter-Strike 2 | 50 | 50 |
| Grand Theft Auto V | 175 | 175 |
| Metro Exodus | 87 | 87 |
| The Witcher 3: Wild Hunt | 156 | 156 |
| Valorant | 300−350 | 300−350 |
4K
Ultra
| Battlefield 5 | 130−140 | 130−140 |
| Counter-Strike 2 | 100−105 | 100−105 |
| Cyberpunk 2077 | 60 | 60 |
| Dota 2 | 153 | 153 |
| Far Cry 5 | 132 | 132 |
| Forza Horizon 4 | 200−210 | 200−210 |
| PLAYERUNKNOWN'S BATTLEGROUNDS | 95−100 | 95−100 |
4K
Epic
| Fortnite | 75−80 | 75−80 |
This is how GTX 660 and RX 7900 XT compete in popular games:
- RX 7900 XT is 323% faster in 1080p
- RX 7900 XT is 650% faster in 1440p
- RX 7900 XT is 750% faster in 4K
All in all, in popular games:
- there's a draw in 62 tests (100%)
Pros & cons summary
| Performance score | 9.67 | 69.60 |
| Recency | 6 September 2012 | 3 November 2022 |
| Maximum RAM amount | 2 GB | 20 GB |
| Chip lithography | 28 nm | 5 nm |
| Power consumption (TDP) | 140 Watt | 300 Watt |
GTX 660 has 53% lower power consumption.
RX 7900 XT, on the other hand, has a 620% higher aggregate performance score, an age advantage of 10 years, a 900% higher maximum VRAM amount, and a 82% more advanced lithography process.
The Radeon RX 7900 XT is our recommended choice as it beats the GeForce GTX 660 in performance tests.
Other comparisons
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