NVIDIA GeForce GTX 675MX vs NVIDIA GeForce GTX TITAN BLACK Comparison

Head-to-Head Benchmarks

The benchmark database records two direct head-to-head comparisons between the NVIDIA GeForce GTX TITAN BLACK and the NVIDIA GeForce GTX 675MX, and the results are decisively one-sided. In the Geekbench Metal test, the TITAN BLACK scores 24,172 points against the GTX 675MX’s 6,131 points. That is a 294.3% advantage, meaning the desktop part delivers nearly four times the Metal compute performance of the mobile chip. The margin is so large that no interpretation of workload differences or driver maturity can close the gap.

The Geekbench OpenCL result tells the same story, albeit with a slightly narrower spread. The TITAN BLACK posts 27,218 points, while the GTX 675MX manages 10,723 points. The delta here is 153.8%, still a comfortable doubling of performance. Across the two recorded tests, the TITAN BLACK wins both, giving it a clean 2-0 record in the head-to-head table. The GTX 675MX has zero wins in this comparison.

These scores align with the broader benchmark averages in the database. The TITAN BLACK holds an average benchmark score of 9,474 across all recorded tests, while the GTX 675MX averages 8,427. That difference of roughly 12% in aggregate is far smaller than the individual Metal and OpenCL deltas, which suggests the older mobile GPU is relatively competitive in legacy DirectX workloads but falls far behind in modern compute-oriented APIs. The TITAN BLACK’s percentile ranking among all GPUs is 46, while the GTX 675MX sits at 43, placing both near the middle of the database’s distribution, yet the TITAN BLACK’s raw compute ceiling is clearly higher.

Looking at the nearest rivals in the database helps contextualize each card. The TITAN BLACK’s closest competitor is the NVIDIA Quadro K5000, which averages 9,637 points, a 1.7% edge over the TITAN BLACK. The NVIDIA GeForce GTX 960M is 1.8% ahead, while the GTX 760 is just 0.2% behind, and the AMD Radeon R7 M380 trails by 1.7%. These are tight margins, meaning the TITAN BLACK sits in a crowded performance band where small driver or workload differences can flip the ranking. The GTX 675MX, by contrast, has its nearest rival in the AMD Radeon 880M, which is only 0.1% ahead, followed by the NVIDIA GeForce MX330 at 0.4% ahead and the AMD Radeon HD 8870M at 0.4% ahead. The AMD Radeon R9 M375X trails the 675MX by 1.2%. So while the TITAN BLACK is competitive within its immediate peer group, the GTX 675MX is also closely matched with its own contemporaries, and the head-to-head gap between the two cards is driven primarily by the TITAN BLACK’s much larger silicon and memory subsystem.

The Verdict

The data is unambiguous: the NVIDIA GeForce GTX TITAN BLACK is the stronger GPU by every recorded metric. In Geekbench Metal, it leads by 294.3%, and in OpenCL, it leads by 153.8%. The average benchmark score of 9,474 versus 8,427 further confirms that the TITAN BLACK maintains a meaningful overall advantage, even though the aggregate gap is smaller than the compute-specific tests suggest. The TITAN BLACK also has a higher percentile ranking, 46 versus 43, indicating it outperforms a larger fraction of the database’s GPU population.

Who should choose the TITAN BLACK? Anyone prioritizing raw compute throughput, particularly in OpenCL or Metal workloads, should look at the desktop card. Its 5.645 TFLOPS of FP32 performance and 6 GB of GDDR5 memory provide the headroom that the GTX 675MX cannot match. The TITAN BLACK’s 336.0 GB/s memory bandwidth is nearly triple the 115.2 GB/s of the GTX 675MX, which matters for texture-heavy scenes and large data sets. The card’s 2,880 shading units and 240 texture mapping units dwarf the GTX 675MX’s 960 and 80 respectively, so any task that scales with shader count will favor the TITAN BLACK decisively.

Who should pick the GTX 675MX? The practical answer is limited to systems that require its form factor. The GTX 675MX is an MXM Module with a 100 W TDP, meaning it fits in laptops or compact industrial systems where the TITAN BLACK’s dual-slot, 250 W design is physically impossible. The GTX 675MX also has no external power connectors, which simplifies integration, while the TITAN BLACK requires both a 6-pin and an 8-pin connector. For mobile or small-form-factor deployments where power delivery and physical space are fixed, the GTX 675MX remains a viable option, but the benchmark data shows it is not a performance alternative. The TITAN BLACK wins every recorded comparison, and the GTX 675MX’s only advantage is its lower power draw and portability, neither of which shows up in raw score comparisons.

Architecture Differences

Both GPUs are built on NVIDIA’s Kepler architecture, but they are far from identical implementations. The TITAN BLACK uses the GK110B chip, while the GTX 675MX uses the GK104 chip. The GK110B is a much larger die at 561 mm², compared to 294 mm² for the GK104. The transistor counts reflect this scale difference: the TITAN BLACK packs 7,080 million transistors, while the GTX 675MX has 3,540 million, exactly half. Both are manufactured on a 28 nm process at TSMC, and the transistor densities are close, 12.6 million per mm² for the TITAN BLACK versus 12.0 million per mm² for the GTX 675MX, indicating that the performance gap comes from sheer silicon area rather than process efficiency.

The shading and texture resources differ by a factor of three in the TITAN BLACK’s favor. The TITAN BLACK has 2,880 shading units and 240 TMUs, while the GTX 675MX has 960 shading units and 80 TMUs. The ROP count is 48 versus 32, a 50% advantage for the desktop card. The TITAN BLACK also supports a higher DirectX feature level, 12 (11_1) versus 12 (11_0) for the GTX 675MX, though both cards expose the same OpenGL 4.6 and Vulkan 1.2.175 versions. The memory subsystem is another major architectural divergence. The TITAN BLACK uses a 384-bit bus with 6 GB of GDDR5, while the GTX 675MX uses a 256-bit bus with 2 GB. The resulting bandwidth figures are 336.0 GB/s and 115.2 GB/s respectively, a gap that becomes critical in high-resolution rendering or compute workloads that stream large buffers.

The pixel and texture rates quantify the throughput difference. The TITAN BLACK achieves 58.80 GPixel/s and 235.2 GTexel/s, while the GTX 675MX manages 13.08 GPixel/s and 52.32 GTexel/s. These are 4.5x and 4.5x gaps, respectively, which match the raw resource counts. The FP32 compute rating also scales accordingly: 5.645 TFLOPS for the TITAN BLACK versus 1,255.7 GFLOPS (roughly 1.26 TFLOPS) for the GTX 675MX. The TITAN BLACK has no FP16 rating recorded, and neither card has RT or tensor cores, so ray tracing and AI acceleration are absent from both.

Specification Differences

The two cards differ across nearly every specification field. The TITAN BLACK has a 28 nm process node, 7,080 million transistors, and a 561 mm² die size, while the GTX 675MX has a 28 nm node, 3,540 million transistors, and a 294 mm² die. The TITAN BLACK’s clocks are listed as 889 MHz base and 980 MHz boost, with memory at 1750 MHz (7 Gbps effective). The GTX 675MX has no base or boost clock recorded, and its memory runs at 900 MHz (3.6 Gbps effective). The TITAN BLACK’s memory configuration is 6 GB of GDDR5 on a 384-bit bus, yielding 336.0 GB/s; the GTX 675MX has 2 GB on a 256-bit bus, yielding 115.2 GB/s.

The compute resources are 2,880 shading units, 240 TMUs, and 48 ROPs for the TITAN BLACK, versus 960, 80, and 32 for the GTX 675MX. The pixel rate is 58.80 GPixel/s versus 13.08 GPixel/s, and the texture rate is 235.2 GTexel/s versus 52.32 GTexel/s. FP32 performance is 5.645 TFLOPS versus 1,255.7 GFLOPS. The TITAN BLACK has a 250 W TDP and a dual-slot form factor, while the GTX 675MX has a 100 W TDP and an MXM Module form factor. The TITAN BLACK requires 1x 6-pin and 1x 8-pin power connectors and a 600 W suggested PSU, while the GTX 675MX has no power connectors and no suggested PSU listed. The TITAN BLACK uses PCIe 3.0 x16, while the GTX 675MX uses MXM-B (3.0). Display outputs are 2x DVI, 1x HDMI 1.4a, and 1x DisplayPort 1.2 for the TITAN BLACK, while the GTX 675MX’s outputs are portable device dependent. The TITAN BLACK’s dimensions are 267 mm long, 111 mm high, and 38 mm wide; the GTX 675MX has no recorded dimensions. The TITAN BLACK was released on 2014-02-17, while the GTX 675MX was released on 2012-09-30. The TITAN BLACK’s launch MSRP was 999 USD, while the GTX 675MX has no launch MSRP recorded.

FAQ

Q: Which GPU wins in the recorded head-to-head benchmarks?

A: The NVIDIA GeForce GTX TITAN BLACK wins both recorded tests. In Geekbench Metal, it scores 24,172 versus 6,131, a 294.3% lead. In Geekbench OpenCL, it scores 27,218 versus 10,723, a 153.8% lead.

Q: How do the average benchmark scores compare?

A: The TITAN BLACK has an average benchmark score of 9,474, while the GTX 675MX has an average of 8,427. That is roughly a 12% aggregate difference, much smaller than the compute-specific gaps.

Q: What is the memory bandwidth difference between the two cards?

A: The TITAN BLACK has 336.0 GB/s bandwidth from 6 GB of GDDR5 on a 384-bit bus. The GTX 675MX has 115.2 GB/s from 2 GB of GDDR5 on a 256-bit bus.

Q: Are both GPUs based on the same architecture?

A: Yes, both use NVIDIA’s Kepler architecture, but they use different chips. The TITAN BLACK uses GK110B with 7,080 million transistors, while the GTX 675MX uses GK104 with 3,540 million transistors.

Q: Which card has higher FP32 compute performance?

A: The TITAN BLACK is rated at 5.645 TFLOPS, while the GTX 675MX is rated at 1,255.7 GFLOPS. The TITAN BLACK delivers more than four times the FP32 throughput.

Q: What are the power requirements for each card?

A: The TITAN BLACK has a 250 W TDP, requires 1x 6-pin and 1x 8-pin power connectors, and has a suggested PSU of 600 W. The GTX 675MX has a 100 W TDP and no power connectors, with no suggested PSU listed.