AMD · Radeon HD 6000 Series

AMD Radeon HD 6870

The AMD Radeon HD 6870 is a graphics card released on October 22, 2010, built on the TeraScale 2 architecture using a 40 nm process. It has 1,120 shading units, 1 GB of video memory on a 256-bit bus, 134.4 GB/s of memory bandwidth, a boost clock of 900 MHz and a 151 W board power rating. It scores 2,195 in the PassMark G3D benchmark. It supports DirectX 11 and OpenGL 4.4.

TeraScale 2Barts XT40 nm

9/10 key specs recorded · 40 facts

Depth: 44 recorded fields, 4 PassMark workloads

Specification data last verified October 1, 2026 against PassMark Videocard Benchmark, AMD.com Specifications and Wikipedia GPU list tables (wikigrid-2026-09). Coverage: 9 of 10 tracked specifications recorded.

PassMark Videocard Benchmark AMD.com Specifications PassMark Videocard Benchmark Wikipedia GPU list tables (wikigrid-2026-09)

Shading units

1,120cores

Memory

1 GB

256-bit

Boost clock

900 MHz

900 MHz base

Board power

151 W

Performance

The AMD Radeon HD 6870 scores 2,195 in the PassMark G3D benchmark, higher than 67.8% of the 2,658 GPUs benchmarked (PassMark rank #935), measured across 6,552 submitted results. Its PassMark G2D score is 423.

PassMark G3D Mark

2,195

Rank #935
Faster than 67.8% of 2,658 GPUs
6,552 samples

0relative to the fastest GPU on record (41,928)

PassMark workload tests

DirectX 9 53 fps

reference: fastest recorded 526 fps · faster than 59.3% of 1,675 GPUs

DirectX 10 16 fps

reference: fastest recorded 231 fps · faster than 58.1% of 1,602 GPUs

DirectX 11 16 fps

reference: fastest recorded 362 fps · faster than 44.8% of 1,430 GPUs

GPU Compute 1,021 ops/s

reference: fastest recorded 26,591 ops/s · faster than 49% of 1,447 GPUs

Averages of PassMark PerformanceTest submissions; frames/sec are PassMark test-scene rates, not game FPS. Tests PassMark does not report for this card are omitted. PassMark listing

In the PassMark workload tests the AMD Radeon HD 6870 averages DirectX 9 53 fps, DirectX 10 16 fps, DirectX 11 16 fps and GPU Compute 1,021 ops/s, across 6,552 submitted results. Frames per second are PassMark test-scene rates, not game frame rates.

Theoretical throughput

FP32 (single precision) 2.016 TFLOPS calculatedcalculated from shaders x boost clock (MHz) x 2 / 1e6 = 1120 x 900 x 2 / 1e6

Pixel fill rate 28.8 GPixel/s calculatedcalculated from ROPs x boost clock (MHz) / 1000 = 32 x 900 / 1000

Texture fill rate 50.4 GTexel/s calculatedcalculated from TMUs x boost clock (MHz) / 1000 = 56 x 900 / 1000

FP32 (single precision) (2.016 TFLOPS), Pixel fill rate (28.8 GPixel/s) and Texture fill rate (50.4 GTexel/s) are calculated by Feex from stored specifications, not stated by AMD.

As stated by PassMark

Category Desktop

Bus interface PCIe 2.1 x16

Max memory 2 GB

Core clock 900 MHz

Memory clock 1050 MHz

DirectX 11

OpenGL 4.4

Max TDP 151 W

First benchmarked 2012-08-13

Samples 6,552

PassMark listing (collected 2026-09-30)

PassMark's own listing for the AMD Radeon HD 6870 states the PCIe 2.1 x16 interface, up to 2 GB of memory, a core clock of 900 MHz, DirectX 11 and OpenGL 4.4, first benchmarked on 2012-08-13. These are PassMark's figures, shown separately from the specification tables above.

Not to be confused with

This page covers the AMD Radeon HD 6870 specifically. It is a different product from AMD Radeon HD 6870M, which have their own specifications. Check the exact model name before comparing figures.

Graphics processor

Architecture TeraScale 2

Codename Barts XT

Chip Not recorded

Process node 40 nm

Transistors 1,700 M

Die size 255 mm²

The AMD Radeon HD 6870 is based on the TeraScale 2 architecture, uses the Barts XT graphics processor, is manufactured on a 40 nm process, contains 1,700 million transistors and has a die size of 255 mm².

Shader configuration

Shading units 1,120

Compute units Not recorded

Streaming multiprocessors Not recorded

Execution units Not recorded

Texture units (TMUs) 56

Render output units (ROPs) 32

Ray tracing cores Not recorded

Tensor / AI cores Not recorded

XMX engines Not recorded

Infinity cache Not recorded

The AMD Radeon HD 6870 has 1,120 shading units, 56 texture mapping units and 32 render output units.

The AMD Radeon HD 6870 does not use XMX engines; those are specific to Intel Arc graphics. Feex has no recorded ray tracing core count for the AMD Radeon HD 6870.

Clock speeds

Base clock 900 MHz

Boost clock 900 MHz

Game clock Not recorded

Memory clock Not recorded

Effective memory clock Not recorded

The AMD Radeon HD 6870 runs at a base clock of 900 MHz and boosts to 900 MHz.

Memory

Size 1 GB

Type Not recorded

Bus width 256-bit

Bandwidth 134.4 GB/s

The AMD Radeon HD 6870 is equipped with 1 GB of memory, uses a 256-bit memory bus and delivers 134.4 GB/s of memory bandwidth.

Board and power

The AMD Radeon HD 6870 has a board power rating of 151 W and it connects over PCIe 2.1 x16.

Board power (TDP) 151 W

Total board power Not recorded

Suggested PSU Not recorded

Power connectors Not recorded

Slot width Not recorded

Length Not recorded

Width Not recorded

Height Not recorded

Cooler Not recorded

Max temperature Not recorded

Bus interface PCIe 2.1 x16

Market

Launched October 22, 2010

Launch price $239

Status Not recorded

Form factor Not recorded

Segment Desktop

Series Radeon HD 6000 Series

The AMD Radeon HD 6870 was released on October 22, 2010 and launched at a price of $239.

Benchmarks

PassMark G3D 2,195

PassMark G2D 423

Rank #935

Samples 6,552

Graphics and compute APIs

The AMD Radeon HD 6870 supports DirectX 11 and OpenGL 4.4.

DirectX 11

OpenGL 4.4

CUDA is an NVIDIA technology and does not apply to the AMD Radeon HD 6870. Feex has no recorded Vulkan version for the AMD Radeon HD 6870. Feex has no recorded OpenCL version for the AMD Radeon HD 6870.