NVIDIA GeForce GTX 465 vs NVIDIA Quadro 6000 Comparison

The NVIDIA Quadro 6000 and the NVIDIA GeForce GTX 465 are both built on the same fundamental Fermi architecture, yet they occupy radically different positions in the market. The data shows that the Quadro 6000, a professional workstation card, holds a decisive performance lead over the consumer-oriented GTX 465, though the gap is narrower than the specification sheets might suggest. In the single available benchmark test, the Geekbench OpenCL score, the Quadro 6000 achieves 9846 points, while the GTX 465 manages 9294 points. This translates to a 5.9% advantage for the Quadro 6000, a meaningful but not overwhelming margin.

Head-to-Head Benchmarks

The head-to-head comparison is limited to a single Geekbench OpenCL test, but the results are instructive. The Quadro 6000's score of 9846 places it 5.9% ahead of the GTX 465's 9294. This performance delta is the only direct numerical comparison available, and it establishes the Quadro 6000 as the clear winner in this matchup. The data indicates a consistent advantage for the Quadro 6000, reflecting its higher raw compute resources.

When looking at the broader competitive landscape, the Quadro 6000's score sits at the 47th percentile of all GPUs, while the GTX 465 sits at the 46th percentile. This near-identical percentile ranking despite the 5.9% raw score difference suggests that both cards are clustered in a dense performance band where small score differences yield minor ranking shifts. The Quadro 6000's nearest rivals include the NVIDIA Quadro M2000M (9832, delta 0.1%) and the AMD FirePro W5000 (9803, delta 0.4%), showing it slightly outperforms these professional cards. The GTX 465, meanwhile, is closely matched with the NVIDIA GeForce GTX 850M (9302, delta -0.1%) and the AMD Radeon R7 M380 (9313, delta -0.2%), indicating it performs at a similar level to these mobile and mid-range parts.

The benchmark results indicate that while the Quadro 6000 wins the head-to-head, the margin is not vast. A 5.9% lead is noticeable in synthetic workloads but may not translate to a massive real-world difference in all applications. The GTX 465, despite its lower score, remains competitive within its own peer group, trailing the GTX 850M by just 0.1% and leading the GTX 960 by 0.2%.

Architecture Differences

Both cards share the GF100 chip, the Fermi architecture, a 40 nm process node from TSMC, 3,100 million transistors, and a 529 mm² die size. The transistor density is identical at 5.9M per mm². This means the fundamental silicon is the same, but NVIDIA has configured it differently for each product segment. The core configurations diverge significantly: the Quadro 6000 enables 448 shading units, 56 texture mapping units (TMUs), and 48 render output units (ROPs). The GTX 465, in contrast, has 352 shading units, 44 TMUs, and 32 ROPs. This represents a substantial reduction in compute resources for the consumer card.

The memory subsystems also differ considerably. The Quadro 6000 features 6 GB of GDDR5 memory on a 384-bit bus, yielding 143.4 GB/s of bandwidth. The GTX 465 comes with just 1024 MB (1 GB) of GDDR5 on a 256-bit bus, providing 102.7 GB/s. The Quadro 6000's memory clock is rated at 747 MHz (3 Gbps effective), while the GTX 465 runs at 802 MHz (3.2 Gbps effective). Although the GTX 465 has a faster memory clock, the Quadro 6000's wider bus delivers 40.7 GB/s more bandwidth. The larger memory capacity of the Quadro 6000 is a defining feature, offering six times the frame buffer of the GTX 465.

The pixel and texture rates reflect these configurational differences. The Quadro 6000 achieves a pixel rate of 16.07 GPixel/s and a texture rate of 32.14 GTexel/s, while the GTX 465 reaches 13.38 GPixel/s and 26.75 GTexel/s. Floating-point performance (FP32) is rated at 1,027.7 GFLOPS for the Quadro 6000 versus 855.4 GFLOPS for the GTX 465. Both cards support DirectX 12 (11_0) and OpenGL 4.6, with no Vulkan support listed. The display outputs differ, with the Quadro 6000 offering 1x DVI, 2x DisplayPort, and 1x S-Video, while the GTX 465 provides 2x DVI and 1x mini-HDMI 1.3a.

Where Each One Wins

The Quadro 6000 wins decisively in scenarios that demand high memory capacity and bandwidth. Its 6 GB frame buffer is suited for large datasets, high-resolution textures, and compute-heavy professional workloads such as scientific visualization, medical imaging, and complex CAD models. The 384-bit bus and 143.4 GB/s bandwidth provide the throughput needed for these memory-intensive tasks. The higher shading unit count (448 vs 352) and FP32 throughput (1,027.7 GFLOPS vs 855.4 GFLOPS) also give it an edge in general-purpose GPU computing and parallel processing workloads. The data confirms this, as the Quadro 6000 wins the OpenCL benchmark outright.

The GTX 465, despite losing the head-to-head, is not without its own strengths. Its faster memory clock (802 MHz vs 747 MHz) suggests it can handle memory operations at a higher frequency, though the narrower bus limits overall bandwidth. Its lower TDP of 200 W versus the Quadro 6000's 204 W makes it marginally more power-efficient at the board level, though this is a minor difference. The GTX 465's smaller 241 mm length (9.5 inches) compared to the Quadro 6000's 248 mm (9.8 inches) may make it easier to fit in smaller chassis. In gaming scenarios, the GTX 465's GeForce 400 generation lineage and 2x DVI plus mini-HDMI outputs target consumer displays, while the Quadro 6000's S-Video output suggests legacy professional video applications.

The use-case split is clear: the Quadro 6000 is engineered for professional workstations where reliability, large memory pools, and compute accuracy are paramount. The GTX 465 targets mainstream consumer gaming and general-purpose desktop use, where its lower price point and sufficient performance for its era made it accessible. The benchmark data, however, shows the Quadro 6000 holds the overall performance crown.

Specification Differences

The two cards differ on nearly every major specification except the chip, architecture, process node, foundry, transistor count, die size, transistor density, TDP (204 W vs 200 W), slot width (both dual-slot), suggested PSU (both 550 W), bus interface (both PCIe 2.0 x16), and API support (both DirectX 12 (11_0), OpenGL 4.6, no Vulkan).

• Memory Size: Quadro 6000 has 6 GB; GTX 465 has 1024 MB.
• Memory Clock: Quadro 6000 at 747 MHz (3 Gbps effective); GTX 465 at 802 MHz (3.2 Gbps effective).
• Memory Bus Width: Quadro 6000 at 384 bit; GTX 465 at 256 bit.
• Memory Bandwidth: Quadro 6000 at 143.4 GB/s; GTX 465 at 102.7 GB/s.
• Shading Units: Quadro 6000 has 448; GTX 465 has 352.
• TMUs: Quadro 6000 has 56; GTX 465 has 44.
• ROPs: Quadro 6000 has 48; GTX 465 has 32.
• Pixel Rate: Quadro 6000 at 16.07 GPixel/s; GTX 465 at 13.38 GPixel/s.
• Texture Rate: Quadro 6000 at 32.14 GTexel/s; GTX 465 at 26.75 GTexel/s.
• FP32: Quadro 6000 at 1,027.7 GFLOPS; GTX 465 at 855.4 GFLOPS.
• Power Connectors: Quadro 6000 uses 1x 6-pin + 1x 8-pin; GTX 465 uses 2x 6-pin.
• Display Outputs: Quadro 6000 has 1x DVI, 2x DisplayPort, 1x S-Video; GTX 465 has 2x DVI, 1x mini-HDMI 1.3a.
• Dimensions: Quadro 6000 is 248 mm (9.8 inches) long and 111 mm (4.4 inches) high; GTX 465 is 241 mm (9.5 inches) long with no listed height.
• Release Date: Quadro 6000 released 2010-12-09; GTX 465 released 2010-05-30.
• Generation: Quadro 6000 is Quadro Fermi (x000); GTX 465 is GeForce 400.
• Predecessor/Successor: Quadro 6000 follows Quadro FX Tesla and precedes Quadro Kepler; GTX 465 follows GeForce 200 and precedes GeForce 500.
• Launch MSRP: Quadro 6000 at 4,399 USD; GTX 465 at 279 USD.

FAQ

Q: Which GPU has higher raw compute performance?

A: The NVIDIA Quadro 6000 leads with 1,027.7 GFLOPS FP32 performance and 448 shading units, compared to the GTX 465's 855.4 GFLOPS and 352 shading units.

Q: How much memory bandwidth does each card provide?

A: The Quadro 6000 offers 143.4 GB/s over a 384-bit bus, while the GTX 465 provides 102.7 GB/s over a 256-bit bus.

Q: Are these cards based on the same chip?

A: Yes, both use the GF100 chip with the Fermi architecture, manufactured on TSMC's 40 nm process, with 3,100 million transistors on a 529 mm² die.

Q: What is the benchmark score difference?

A: In the Geekbench OpenCL test, the Quadro 6000 scores 9846, which is 5.9% higher than the GTX 465's 9294.

Q: Do these cards support the same APIs?

A: Both support DirectX 12 (11_0) and OpenGL 4.6, and neither lists Vulkan support.

Q: Which card has a larger memory capacity?

A: The Quadro 6000 has 6 GB of GDDR5, which is six times the 1024 MB (1 GB) of GDDR5 found on the GTX 465.