NVIDIA GeForce GTX 650 Ti vs NVIDIA Quadro K5000 Comparison

Head-to-Head Benchmarks

The benchmark data shows a clear and consistent performance gap between these two Kepler-generation NVIDIA cards. Across the two recorded compute tests, the NVIDIA Quadro K5000 wins outright, taking 2 wins against 0 for the GeForce GTX 650 Ti.

In Geekbench OpenCL, the Quadro K5000 scores 11,418 points, while the GTX 650 Ti manages 7,877 points. That is a 45% delta in favor of the professional card. The margin is substantial and reflects the massive difference in raw compute resources between the two.

The Vulkan test tells a similar story. The Quadro K5000 posts 11,169 points, and the GTX 650 Ti trails with 8,229 points. The delta here is 35.7%, still a decisive victory for the Quadro, though slightly narrower than the OpenCL gap.

Looking at the broader database context, the Quadro K5000 has an average benchmark score of 9,637, placing it at the 46th percentile of all GPUs. Its nearest rivals are clustered very tightly: the GeForce GTX 960M sits 0.1% behind, the AMD Radeon Pro WX 2100 is 0.2% behind, the Quadro P4000 is 0.3% behind, and the Tesla C2070 is 0.8% behind. The K5000 essentially trades blows with these cards, sitting right at the edge of that performance cluster.

The GTX 650 Ti, by contrast, has an average score of 8,053, which places it at the 42nd percentile. Its rival group includes the GTX 880M at 0.2% ahead, the Quadro P5000 at 0.2% ahead, the GTX 650 Ti Boost at 0.2% behind, and the GRID K2 at 0.3% behind. The 650 Ti is a solidly mid-pack performer among its immediate peers, but it cannot reach the K5000's level.

Architecture Differences

Both cards share the same fundamental Kepler architecture and are built on TSMC's 28 nm process, but the silicon underneath is very different. The Quadro K5000 uses the GK104 chip, a large die measuring 294 mm² with 3,540 million transistors. The GTX 650 Ti uses the GK106S chip, which is smaller at 221 mm² and packs 2,540 million transistors. Transistor density is close: 12.0M per mm² for the K5000 versus 11.5M per mm² for the 650 Ti.

The compute resources diverge sharply. The K5000 has 1,536 shading units, 128 texture mapping units, and 32 ROPs. The GTX 650 Ti has exactly half the shading units at 768, half the TMUs at 64, and half the ROPs at 16. This halving pattern explains the performance dominance of the K5000 in every measured workload.

Clock behavior differs as well. The K5000 runs at a flat 706 MHz base and boost, with no dynamic range. The GTX 650 Ti has no recorded base or boost clock in the database, which limits direct clock comparison. Memory clocks are identical at 1350 MHz, or 5.4 Gbps effective for both cards.

Memory configuration is another major split. The K5000 carries 4 GB of GDDR5 on a 256-bit bus, delivering 172.8 GB/s of bandwidth. The 650 Ti has 1 GB of GDDR5 on a 128-bit bus, yielding 86.40 GB/s, exactly half the bandwidth. For any memory-heavy workload, the K5000 has a clear structural advantage.

The pixel and texture rates reflect the resource gap. The K5000 achieves 22.59 GPixel/s and 90.37 GTexel/s. The 650 Ti delivers 14.85 GPixel/s and 59.39 GTexel/s. In floating-point compute, the K5000 reaches 2.169 TFLOPS FP32, while the 650 Ti is rated at 1,425.4 GFLOPS, roughly 52% of the K5000's throughput.

Interface and connectivity also differ. The K5000 uses PCIe 2.0 x16, while the 650 Ti supports PCIe 3.0 x16. The K5000 is a dual-slot card at 267 mm long, whereas the 650 Ti is a single-slot design at 145 mm. Display outputs are split: the K5000 has 2x DVI and 2x DisplayPort 1.2, while the 650 Ti offers 2x DVI and 1x mini-HDMI 1.4a.

Power requirements are similar, with both cards rated at 122 W (K5000) and 110 W (650 Ti), each using a single 6-pin power connector and a 300 W suggested power supply. The API support is identical: DirectX 12 (11_0), OpenGL 4.6, and Vulkan 1.2.175.

Where Each One Wins

The Quadro K5000 wins in every head-to-head benchmark recorded, so the use-case split is mostly about degree, not direction. The K5000's 45% OpenCL lead and 35.7% Vulkan lead make it the obvious choice for compute-oriented workloads. Its 4 GB memory capacity and 172.8 GB/s bandwidth are well suited to larger datasets and higher-resolution textures. The dual DisplayPort 1.2 outputs also support modern professional displays.

The GTX 650 Ti, despite losing the compute tests, still has a role. Its smaller 145 mm single-slot form factor fits in compact cases where the K5000's 267 mm dual-slot design cannot. The PCIe 3.0 interface gives it a newer bus standard, though the practical impact is limited given the card's lower compute throughput. Its 110 W TDP is slightly lower than the K5000's 122 W, making it a marginally lighter thermal load.

For gaming or general consumer use, the 650 Ti's smaller memory footprint (1 GB) and reduced bandwidth (86.40 GB/s) will constrain performance in modern titles, but the card occupies a lower performance tier that may still satisfy older or less demanding workloads. The K5000's strengths align with professional rendering, simulation, and compute tasks where the 45% OpenCL advantage directly translates to faster completion times.

FAQ

Q: Which card is faster in Geekbench OpenCL?

A: The NVIDIA Quadro K5000 scores 11,418 points versus 7,877 points for the GTX 650 Ti, a 45% lead for the K5000.

Q: How much faster is the K5000 in Vulkan?

A: The K5000 achieves 11,169 points, while the GTX 650 Ti scores 8,229 points, giving the K5000 a 35.7% advantage.

Q: What are the memory capacities of these two cards?

A: The Quadro K5000 has 4 GB of GDDR5 on a 256-bit bus, while the GTX 650 Ti has 1 GB of GDDR5 on a 128-bit bus.

Q: Do both cards support the same graphics APIs?

A: Yes, both support DirectX 12 (11_0), OpenGL 4.6, and Vulkan 1.2.175.

Q: Which card has a higher average benchmark score and percentile rank?

A: The K5000 has an average score of 9,637 and sits at the 46th percentile. The GTX 650 Ti has an average of 8,053 and ranks at the 42nd percentile.

Q: Are there differences in physical size and power draw?

A: The K5000 is a dual-slot card at 267 mm length with a 122 W TDP. The 650 Ti is a single-slot card at 145 mm length with a 110 W TDP.

The Verdict

The data points to a straightforward conclusion: the NVIDIA Quadro K5000 is the stronger card in every measured benchmark. Its 45% OpenCL lead and 35.7% Vulkan lead are decisive, and its average score of 9,637 versus 8,053 puts it clearly above the GTX 650 Ti in overall compute capability.

For users who need maximum compute throughput, larger memory capacity (4 GB versus 1 GB), and double the bandwidth (172.8 GB/s versus 86.40 GB/s), the K5000 is the only rational choice. It also offers dual DisplayPort 1.2 outputs, which suits professional multi-monitor setups.

The GTX 650 Ti is not without merit, but its advantages are physical rather than computational. The single-slot 145 mm design and lower 110 W TDP make it easier to integrate into small or constrained systems. Its PCIe 3.0 interface is newer, though the K5000's PCIe 2.0 does not appear to handicap it in the recorded tests.

Professionals working with compute-heavy applications should pick the Quadro K5000. Users with space or thermal constraints, or those whose workloads are light enough to fit within 1 GB of memory, may find the GTX 650 Ti sufficient, but they should expect roughly half the compute performance in OpenCL and about 74% of the Vulkan performance. The benchmark record leaves no ambiguity: the K5000 is the dominant part.