NVIDIA Quadro K6000

NVIDIA Quadro K6000 is an end-of-life professional workstation GPU built on the 28 nm Kepler architecture (GK110B chip, 7,080 million transistors on a 561 mm² die). Its average benchmark score of 19,090 places it at the 61st percentile of all GPUs, meaning it sits in the upper-middle tier of the overall performance distribution. The card is a dual-slot, 267 mm (10.5 inches) long PCIe 3.0 x16 solution with 12 GB of GDDR5 memory, a 384-bit bus, and 288.4 GB/s of bandwidth. It offers 2,880 shading units, 240 texture mapping units, and 48 ROPs, delivering 5.196 TFLOPS of FP32 compute, 216.5 GTexel/s texture fill, and 54.12 GPixel/s pixel throughput. Clock speeds are modest by modern standards: 797 MHz base and 902 MHz boost, with memory running at 1,502 MHz (6 Gbps effective). Display output is limited to 2x DVI and 2x DisplayPort 1.2. The card supports DirectX 12 (11_1), OpenGL 4.6, and Vulkan 1.2.175, but has no dedicated ray tracing or tensor cores.

Who Should Consider It

The Quadro K6000 is a legacy professional card whose synthetic scores tell a clear story: it is competitive with modern mid-range integrated and entry-level discrete GPUs, but far from state-of-the-art. In Geekbench tests, it scores 7,932 in Metal, 23,944 in OpenCL, and 25,394 in Vulkan. The OpenCL and Vulkan numbers are strong for a 2013 product, suggesting that compute-heavy workloads at lower resolutions remain viable. For gaming at 1080p, this card can handle older titles and esports at medium-to-high settings, but its 902 MHz boost clock and Kepler-era architecture will struggle with modern AAA games at high detail. At 1440p, expect to drop to medium settings or rely on upscaling, as the 288.4 GB/s bandwidth and 54.12 GPixel/s fill rate are not sufficient for high-resolution texture-heavy scenes. At 4K, the K6000 is largely out of its depth; the 12 GB VRAM helps with capacity, but the compute throughput and pixel rate will bottleneck frame rates in demanding scenarios.

For professional workloads—CAD, 3D modeling, scientific visualization—the K6000 remains usable for OpenGL 4.6 applications that do not require recent features. The 12 GB frame buffer is a genuine asset for large datasets or multi-monitor setups, and the 2,880 shading units provide respectable FP32 throughput for simulation tasks. Users working with DirectX 11_1 titles or Vulkan 1.2.175 compute shaders will find it functional, but those needing DirectX 12 Ultimate features or hardware ray tracing should look elsewhere. The data suggests this card is best suited for secondary workstations, legacy software compatibility, or budget builds where 12 GB VRAM matters more than raw speed. Its 61st percentile ranking means it outperforms about 60% of all GPUs in the database, but its direct rivals are modern integrated graphics (AMD Radeon 780M) and mobile parts (RTX 4050 Mobile), which indicates its performance class.

Ray Tracing and Feature Set

The Quadro K6000 has no ray tracing cores and no tensor cores—these are absent from the FACT PACK, confirming that hardware-accelerated ray tracing is not supported. All ray tracing workloads would fall to software or compute shaders, which is impractical given the 5.196 TFLOPS FP32 limit. The card does support DirectX 12 (11_1), which is the feature level 11_1 subset of DirectX 12—this excludes many modern features like mesh shaders, variable rate shading, and DirectX Raytracing. OpenGL 4.6 support is excellent for a card of this era, making it a solid choice for legacy OpenGL applications that rely on fixed-function pipelines or early compute shaders. Vulkan 1.2.175 is also present, which is surprisingly modern and allows for low-overhead API access in games and compute workloads. However, the lack of hardware RT cores means the K6000 cannot compete with even entry-level RTX cards in ray-traced scenes. Its feature set is effectively compute- and rasterization-oriented, with no AI acceleration (no tensor cores) and no dedicated RT hardware. The 2x DisplayPort 1.2 outputs support high-resolution displays but lack modern standards like DisplayPort 1.4 or HDMI 2.1, limiting refresh rates and bandwidth for multi-monitor 4K setups.

Power and Cooling

The Quadro K6000 has a TDP of 225 W, which is modest for a dual-slot card of its class. NVIDIA recommends a 550 W power supply, and the card requires two 6-pin power connectors—both of which must be connected for full operation. The 225 W TDP suggests that a capable dual-slot air cooler is sufficient; the card's 267 mm length and 111 mm height fit standard mid-tower cases, but users should verify clearance. The power draw is low enough that most modern 550 W PSUs will handle it, though the card's age means it lacks modern power management features like zero-RPM fans or idle shutdown. The 28 nm process node from TSMC produces significant heat relative to modern GPUs, so adequate case airflow is recommended. The dual-slot design is standard, and the 2x 6-pin connectors are compatible with most aftermarket PSU cables, but adapters may be needed for older units. The 225 W TDP is approximately half of what modern flagship GPUs draw, making this a relatively power-efficient card for its era—though its performance per watt is poor compared to contemporary parts.

FAQ

Q: Is the Quadro K6000 suitable for modern gaming at 1080p?

A: At 1080p, the card can handle older and less demanding titles at medium settings, based on its OpenCL score of 23,944 and Vulkan score of 25,394. Modern AAA games at high detail will likely exceed its 902 MHz boost clock and 216.5 GTexel/s texture rate.

Q: Does this card support ray tracing?

A: No. The FACT PACK lists no ray tracing cores, and the DirectX 12 (11_1) API support excludes DirectX Raytracing. Ray tracing workloads would be impractical without dedicated hardware.

Q: How much VRAM does it have, and is it enough for 4K?

A: The K6000 has 12 GB of GDDR5 memory on a 384-bit bus with 288.4 GB/s bandwidth. While the capacity is sufficient for 4K textures, the 54.12 GPixel/s pixel rate and 5.196 TFLOPS compute will bottleneck 4K gaming performance.

Q: What power supply do I need?

A: NVIDIA recommends a 550 W PSU. The card has a 225 W TDP and requires two 6-pin power connectors.

Q: Can I use this card for modern compute workloads?

A: Yes, for OpenCL and Vulkan compute. Its OpenCL score of 23,944 and Vulkan score of 25,394 are competitive with modern integrated GPUs, but the Kepler architecture lacks tensor cores for AI workloads.

Q: How does it compare to the AMD Radeon 780M integrated graphics?

A: The K6000 scores 19,090 average, which is 0.2% higher than the Radeon 780M's 19,057. In practice, the K6000's 12 GB VRAM gives it an edge in memory-heavy tasks, but the 780M is more power-efficient.

How It Compares

The nearest rival by average score is the AMD Radeon 780M, which scores 19,057—just 0.2% lower than the K6000's 19,090. This is a statistical tie, meaning the K6000 and this modern integrated GPU perform nearly identically in synthetic benchmarks. The Radeon 780M achieves this with far lower power consumption, but the K6000 has 12 GB VRAM versus the 780M's shared system memory, favoring the Quadro in memory-capacity-bound workloads.

The NVIDIA GeForce RTX 4050 Mobile scores 19,049, which is 0.2% below the K6000. This is another near-exact match in average performance. However, the RTX 4050 Mobile is a laptop GPU with modern features like ray tracing cores and DLSS, which the K6000 lacks entirely. The K6000's advantage lies in its 12 GB dedicated VRAM and full-size dual-slot design, while the mobile part excels in efficiency and feature set.

The NVIDIA Tesla K20m scores 19,011, which is 0.4% lower than the K6000. Both are Kepler-era professional cards, but the K6000 is the newer, more capable variant with 12 GB VRAM versus the Tesla's compute-focused design. The 0.4% delta is negligible, so users should choose based on memory and display outputs, where the K6000 wins with 2x DVI and 2x DisplayPort 1.2.

The NVIDIA TITAN Xp scores 19,184, which is 0.5% higher than the K6000. This is the only rival that beats the K6000 in average score, and by a razor-thin margin. The TITAN Xp is a consumer-grade card with a similar memory configuration but higher clock speeds and newer architecture, yet the synthetic scores show them in the same performance tier. The K6000's ECC-capable memory and professional driver support may justify its inclusion in workstations, despite the slight performance deficit.

Memory Subsystem

The Quadro K6000 features 12 GB of GDDR5 memory on a 384-bit bus, delivering 288.4 GB/s of bandwidth. The memory operates at 1,502 MHz, translating to 6 Gbps effective data rate—a standard speed for 2013-era GDDR5. The 384-bit bus width is substantial, providing high throughput for large data sets, which is critical for professional applications like 3D rendering and scientific simulation. At 288.4 GB/s, the bandwidth is roughly half of what modern high-end GPUs offer, but the 12 GB capacity is still competitive with many current cards. For 4K workloads, the memory capacity is sufficient to hold large textures and frame buffers, but the bandwidth becomes a limiting factor when streaming high-resolution assets. The 48 ROPs pair with the memory subsystem to provide 54.12 GPixel/s fill rate, which is adequate for 1440p but will bottleneck at 4K with heavy overdraw. The 256-bit-equivalent bandwidth per GB (24 GB/s per GB) is low by modern standards, meaning the card will feel memory-bandwidth-constrained in bandwidth-hungry tasks. However, for compute workloads that fit within the 12 GB frame buffer, the large capacity allows for bigger batch sizes than rivals with 8 GB or less, partially offsetting the lower bandwidth. The GDDR5 type is mature and reliable, and the 384-bit interface ensures no memory channels are starved in multi-tasking scenarios.