RADEON

AMD Radeon HD 6870 1600SP Edition

AMD graphics card specifications and benchmark scores

1 GB
VRAM
MHz Boost
175W
TDP
256
Bus Width

AMD Radeon HD 6870 1600SP Edition Specifications

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Radeon HD 6870 1600SP Edition GPU Core

Shader units and compute resources

The AMD Radeon HD 6870 1600SP Edition GPU core specifications define its raw processing power for graphics and compute workloads. Shading units (also called CUDA cores, stream processors, or execution units depending on manufacturer) handle the parallel calculations required for rendering. TMUs (Texture Mapping Units) process texture data, while ROPs (Render Output Units) handle final pixel output. Higher shader counts generally translate to better GPU benchmark performance, especially in demanding games and 3D applications.

Shading Units
1,600
Shaders
1,600
TMUs
80
ROPs
32
Compute Units
20
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HD 6870 1600SP Edition Clock Speeds

GPU and memory frequencies

Clock speeds directly impact the Radeon HD 6870 1600SP Edition's performance in GPU benchmarks and real-world gaming. The base clock represents the minimum guaranteed frequency, while the boost clock indicates peak performance under optimal thermal conditions. Memory clock speed affects texture loading and frame buffer operations. The Radeon HD 6870 1600SP Edition by AMD dynamically adjusts frequencies based on workload, temperature, and power limits to maximize performance while maintaining stability.

GPU Clock
850 MHz
Memory Clock
1050 MHz 4.2 Gbps effective
GDDR GDDR 6X 6X

AMD's Radeon HD 6870 1600SP Edition Memory

VRAM capacity and bandwidth

VRAM (Video RAM) is dedicated memory for storing textures, frame buffers, and shader data. The Radeon HD 6870 1600SP Edition's memory capacity determines how well it handles high-resolution textures and multiple displays. Memory bandwidth, measured in GB/s, affects how quickly data moves between the GPU and VRAM. Higher bandwidth improves performance in memory-intensive scenarios like 4K gaming. The memory bus width and type (GDDR6, GDDR6X, HBM) significantly influence overall GPU benchmark scores.

Memory Size
1024 MB
VRAM
1,024 MB
Memory Type
GDDR5
VRAM Type
GDDR5
Memory Bus
256 bit
Bus Width
256-bit
Bandwidth
134.4 GB/s
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Radeon HD 6870 1600SP Edition by AMD Cache

On-chip cache hierarchy

On-chip cache provides ultra-fast data access for the HD 6870 1600SP Edition, reducing the need to fetch data from slower VRAM. L1 and L2 caches store frequently accessed data close to the compute units. AMD's Infinity Cache (L3) dramatically increases effective bandwidth, improving GPU benchmark performance without requiring wider memory buses. Larger cache sizes help maintain high frame rates in memory-bound scenarios and reduce power consumption by minimizing VRAM accesses.

L1 Cache
8 KB (per CU)
L2 Cache
512 KB
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HD 6870 1600SP Edition Theoretical Performance

Compute and fill rates

Theoretical performance metrics provide a baseline for comparing the AMD Radeon HD 6870 1600SP Edition against other graphics cards. FP32 (single-precision) performance, measured in TFLOPS, indicates compute capability for gaming and general GPU workloads. FP64 (double-precision) matters for scientific computing. Pixel and texture fill rates determine how quickly the GPU can render complex scenes. While real-world GPU benchmark results depend on many factors, these specifications help predict relative performance levels.

FP32 (Float)
2.720 TFLOPS
FP64 (Double)
544.0 GFLOPS (1:5)
Pixel Rate
27.20 GPixel/s
Texture Rate
68.00 GTexel/s
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TeraScale 2 Architecture & Process

Manufacturing and design details

The AMD Radeon HD 6870 1600SP Edition is built on AMD's TeraScale 2 architecture, which defines how the GPU processes graphics and compute workloads. The manufacturing process node affects power efficiency, thermal characteristics, and maximum clock speeds. Smaller process nodes pack more transistors into the same die area, enabling higher performance per watt. Understanding the architecture helps predict how the HD 6870 1600SP Edition will perform in GPU benchmarks compared to previous generations.

Architecture
TeraScale 2
GPU Name
Cypress
Process Node
40 nm
Foundry
TSMC
Transistors
2,154 million
Die Size
334 mm²
Density
6.4M / mm²
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AMD's Radeon HD 6870 1600SP Edition Power & Thermal

TDP and power requirements

Power specifications for the AMD Radeon HD 6870 1600SP Edition determine PSU requirements and thermal management needs. TDP (Thermal Design Power) indicates the heat output under typical loads, guiding cooler selection. Power connector requirements ensure adequate power delivery for stable operation during demanding GPU benchmarks. The suggested PSU wattage accounts for the entire system, not just the graphics card. Efficient power delivery enables the Radeon HD 6870 1600SP Edition to maintain boost clocks without throttling.

TDP
175 W
TDP
175W
Power Connectors
2x 6-pin
Suggested PSU
450 W
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Radeon HD 6870 1600SP Edition by AMD Physical & Connectivity

Dimensions and outputs

Physical dimensions of the AMD Radeon HD 6870 1600SP Edition are critical for case compatibility. Card length, height, and slot width determine whether it fits in your chassis. The PCIe interface version affects bandwidth for communication with the CPU. Display outputs define monitor connectivity options, with modern cards supporting multiple high-resolution displays simultaneously. Verify these specifications against your case and motherboard before purchasing to ensure a proper fit.

Slot Width
Dual-slot
Length
282 mm 11.1 inches
Bus Interface
PCIe 2.0 x16
Display Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Display Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
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AMD API Support

Graphics and compute APIs

API support determines which games and applications can fully utilize the AMD Radeon HD 6870 1600SP Edition. DirectX 12 Ultimate enables advanced features like ray tracing and variable rate shading. Vulkan provides cross-platform graphics capabilities with low-level hardware access. OpenGL remains important for professional applications and older games. CUDA (NVIDIA) and OpenCL enable GPU compute for video editing, 3D rendering, and scientific applications. Higher API versions unlock newer graphical features in GPU benchmarks and games.

DirectX
11.2 (11_0)
DirectX
11.2 (11_0)
OpenGL
4.4
OpenGL
4.4
OpenCL
1.2
Shader Model
5.0
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Radeon HD 6870 1600SP Edition Product Information

Release and pricing details

The AMD Radeon HD 6870 1600SP Edition is manufactured by AMD as part of their graphics card lineup. Release date and launch pricing provide context for comparing GPU benchmark results with competing products from the same era. Understanding the product lifecycle helps evaluate whether the Radeon HD 6870 1600SP Edition by AMD represents good value at current market prices. Predecessor and successor information aids in tracking generational improvements and planning future upgrades.

Manufacturer
AMD
Release Date
Jan 2013
Production
End-of-life
Predecessor
Evergreen
Successor
Southern Islands

Radeon HD 6870 1600SP Edition Benchmark Scores

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No benchmark data available for this GPU.

About AMD Radeon HD 6870 1600SP Edition

The AMD Radeon HD 6870 1600SP Edition delivers compute performance rooted in its TeraScale 2 architecture, featuring 1600 stream processors for parallel processing tasks. While its 1GB of GDDR5 memory provides decent bandwidth, its capabilities are firmly positioned as entry-level by modern standards. This graphics card can handle basic GPGPU workloads, but its performance is significantly outpaced by contemporary integrated graphics solutions. For gamers interested in compute, it might accelerate certain in-game physics calculations or older video encoding software. The 40 nm manufacturing process and PCIe 2.0 interface inherently limit its power efficiency and data transfer speeds compared to newer cards. Its compute utility today is largely historical, serving as a reminder of the technology available at its release in early 2013.

When considering content creation suitability, the Radeon HD 6870 1600SP faces substantial limitations for modern applications. Its 1GB frame buffer is insufficient for high-resolution texture work or complex 3D modeling scenes commonly used today. While it could run basic versions of older editing software, rendering times would be exceptionally long compared to any current-generation GPU. The card lacks dedicated hardware acceleration for modern codecs, making video editing a sluggish experience. For a hobbyist working with standard definition footage or simple image editing a decade ago, this card was a viable option. Today, its role in a content creation workstation is obsolete, unable to meet the demands of mainstream creative software.

Software compatibility for this AMD offering is a major concern, as driver support for legacy TeraScale 2 products has been discontinued. Modern operating systems may lack optimized drivers, leading to instability or missing features in new games and applications. While the card was compatible with DirectX 11 and OpenGL 4.1 at launch, it cannot support newer API versions required by recent titles. Users would be confined to older operating systems like Windows 7 to achieve the most stable experience. Even then, many contemporary game launchers and security updates may not function correctly on such old software stacks. Relying on the HD 6870 1600SP Edition for a current gaming setup is impractical due to these significant software hurdles.

For multi-GPU considerations, this GPU supported AMD's CrossFire technology, allowing two cards to work together. In its era, pairing two HD 6870 1600SP cards could provide a noticeable boost in gaming performance for supported titles. However, multi-GPU support was notoriously inconsistent, with many games showing no improvement or even suffering from micro-stuttering. By today's standards, configuring a multi-GPU system with these cards is not recommended due to the high power draw of 175W per card and the lack of driver optimization. Furthermore, finding a compatible motherboard and ensuring adequate power supply for two such cards would be challenging. The multi-GPU potential of this particular AMD model is now a relic of a past era in PC hardware.

The NVIDIA Equivalent of Radeon HD 6870 1600SP Edition

Looking for a similar graphics card from NVIDIA? The NVIDIA GeForce RTX 2080 offers comparable performance and features in the NVIDIA lineup.

NVIDIA GeForce RTX 2080

NVIDIA • 8 GB VRAM

View Specs Compare

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