AMD Radeon HD 6750M vs ATI Radeon HD 4850 X2

Table of Contents

Graphics Processor

GPU model Whistler R700
GPU variant Whistler PRO (216-0810005) R700 PRO (215-0669065)
Architecture TeraScale 2 TeraScale
Foundry TSMC TSMC
Manufacturing process 40 nm 55 nm
Number of transistors 716 million 956 million
Die size 104 mm² 256 mm²

Mobile graphics

Release date Jan 4th, 2011
Generation Vancouver (HD 6700M)
Production End-of-life
Interface MXM-A (3.0)
Predecessor Manhattan
Successor London

Clocks

GPU clock 600 MHz 625 MHz
Memory clock 800 MHz 1600 Mbps effective 995 MHz 1990 Mbps effective

Memory Configuration

Memory size 1024 MB 512 MB
Memory type GDDR3 GDDR3
Memory bus width 128 bit 256 bit
Bandwidth 25.60 GB/s 63.68 GB/s

Render Configuration

Shading units 480 800
TMUs 24 40
ROPs 8 16
Compute units 6 10
Cache L1 8 KB (per CU) 16 KB (per CU)
Cache L2 256 KB 256 KB

Performance

Pixel rate 4.800 GPixel/s 10.00 GPixel/s
Texture rate 14.40 GTexel/s 25.00 GTexel/s
FP32 (float) performance 576.0 GFLOPS 1,000 GFLOPS
FP64 (double) performance 200.0 GFLOPS (1:5)

Dimensions & Outputs

Slot width MXM Module Dual-slot
TDP 35 W 250 W
Outputs No outputs 4x DVI1x S-Video
Length 267 mm 10.5 inches
Suggested PSU 600 W
Power connectors 1x 6-pin + 1x 8-pin
Board number B501

API Support & Features

DirectX 11.2 (11_0) 10.1 (10_1)
OpenGL 4.4 3.3
OpenCL 1.2 1.1
Vulkan
Shader model 5.0 4.1

Other Features

Graphics Card

Release date Nov 7th, 2008
Generation Radeon R700
Production End-of-life
Launch price 420 USD
Interface PCIe 2.0 x16
Reviews 26 in our database
Predecessor Radeon R600
Successor Evergreen

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